Landracing Forum

Bonneville Salt Flats Discussion => Build Diaries => Topic started by: 38flattie on July 21, 2010, 09:34:16 AM

Title: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on July 21, 2010, 09:34:16 AM
I thought I'd start a build thread,if anyone is interested. I started this car as a hotrod, and had some pretty neat stuff for it! You can see that info here:

http://www.jalopyjournal.com/forum/showthread.php?t=430439

The engine has consumed much of my time, and has become a passion. I decided to try Bonneville, so here I am. I'm starting over with suspension, scrapped the EFI plans, and committed 100% to the salt.

Here is what I'm chasing:

Blown Vintage Gas Coupe - /BVGC  
XXO     Mike Hegarty                   M. Hegarty         08/04   151.208
Title: Re: XXO/BVGC '38 Lasalle Build
Post by: jimmy six on July 21, 2010, 12:11:45 PM
Flattie. I've looked over all your HAMB pics and info. Since you are planning on running on a Gas Coupe record I would take extra care in making sure you kept the body parts a pure as possible. Remember it is a Production class car with an engine swap, quick change, or non stock supercharger.

I remember when I change to gas coupe from altered I had to find a set of stock fender parking lights for my 1940 Chevrolet and running boards. I had some chrome emblems removed from the hood but the upper parts were still there and it was approved. I kept the original hinges on the trunk and had to add the license plate bracket because it had held the trunk hande which was off for the altered class also. I also had to put on the original taillights.

Just don't you to get bit. I would also get some original pictures of the car off brochures if possible to prove what you do. Keep them in a 3 ring binder with your SCTA/BNI log book. Sometimes in impounds it can get quite hairy as YOU need to provide the proof. Good Luck and I hope to see you in Ocober at World Finals...It's a get meet.................JD
Title: Re: XXO/BVGC '38 Lasalle Build
Post by: mtkawboy on July 21, 2010, 12:14:39 PM
Im always interested in new car builds. What motor are you planning on running ?
Title: Re: XXO/BVGC '38 Lasalle Build
Post by: 38flattie on July 21, 2010, 12:17:14 PM
jimmy six, Thanks!

So even the stock tail lights have to be in place, huh? I'll have to try and find some- never had them!

mtkawboy- it's a blown Cadillac flathead.
Title: Re: XXO/BVGC '38 Lasalle Build
Post by: jimmy six on July 21, 2010, 02:18:03 PM
Flattie. I would check with Dan Warner on tail light issue. Also the Vintage committee. I pretty sure ALL the vintage gas coupes I have ever seen run had their stock tail lights or light. If what you want to put on would not give you any areo dynamic advantage it probaby would be OK. Thats is why I suggested the pictures of an orignal car.

I believe the 1938 Chevrolet that holds the XO/VGC has one of the original taillights which sticks out in the wind. If he were to add '39 Fords it would be an advantage and in my opinion could easily be protested. I don't know what the 39 LaSalle tail light look like but IMO you need to get something which could pass and be an advantage..........Good Luck
Title: Re: XXO/BVGC '38 Lasalle Build
Post by: 38flattie on July 21, 2010, 03:44:52 PM
Thanks jimmy six. I'll round up all the parts, and put things the way they should be.

I'm stuck here at work in Pa., but I have managed to make some progress. I ordered a billet flywheel, a tunable dampener, and custom aluminium rods.

I also found a GM 7.5" rear, so when I get home, I can start the 4-link setup,and install the c-clip eliminators. More pics then.

mtkawboy- here is a mockup of the engine. I'm still working on the wet sump oil pump bracket. When I started building this, the only aftermarket parts for these motors was a 2x2 intake, and aluminium heads. All of the engine parts were made by me or my friends, except for the heads. The heads are dual plug, two piece, Norm Frick heads.A Lot of engine mods here. The last pic is an original Flatcad.
Title: Re: XXO/BVGC '38 Lasalle Build
Post by: jimmy six on July 21, 2010, 06:41:21 PM
If you can't find '38 LaSalle tail lights check out '38 Buicks...I think they look a lot alike. Good Luck
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on September 02, 2010, 08:21:00 PM
Well, due to the body mods on the Lasalle, and the fact that the Lasalle has the same engine family as the Flatcad, the Lasalle build is no more!

I picked up a '38 Chevy coupe, and the Flatcad will go in it. I got a great deal on some fiberglass fenders too!

I just picked up a Chassisworks 4-link for it, and as soon as it's installed, it will get a haircut.

Then, fun with the roll cage!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: GH on September 03, 2010, 08:28:28 AM
Ahh, aint this fun, looks just like Christmas with all those boxes of new parts.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on September 25, 2010, 08:59:44 PM
Lots of fun!

I spent the day with a CAD modeler. I now have two-piece heads on CAD. This will allow us to use different chamber designs, to see what will flow best for us. I thought this was pretty cool stuff!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on October 01, 2010, 06:35:39 PM
Afte some fussin and discussin, we decide on a Halibrand quickchange, over the GM 7.5". My buddy, Randy Jackson got started on it, and sent me pics..It will still be a 4-link setup. I'm heading out tomorrow to see him, and mock up the engine, so we can build new mounts, and get the tranny and driveline installed.

Out with the old, in with the new.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on October 13, 2010, 11:08:45 AM

We are several months out on a crank, and are working on the cam, intake, and such.

The rear end is in, and we started mocking up the junk engine in it, so we can get the proper ride height.

Once this and the tranny are in, the front suspension will be next.

The races are nearly 10 months away, and I'm already feeling rushed!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on October 28, 2010, 08:29:09 PM
--------------------------------------------------------------------------------

It probably seems like this is moving slow, but there is a lot going on behind the scenes. This build is almost coast to coast!

I was in Missouri this week, with Randy. The front end is now going in the car, and we were figuring out the tranny, bellhousing/flywheel issue. Pat McGuire is making us an adaptor to a Ford Fe bellhousing. We'll run a Ford Fe flywheel, with a Muncie tranny.

In Washinton, Pete is chomping at the bit, waiting for Joe Paneck in California to finish the cam blank. I know when Pete gets done, we'll have a monster cam!
Also in Washinton, Roy is whittling away at the 6-71 blower intake.

Back in California, Kevin is checking on the feasibility of some secret ultra lightweight lifter bodies. :wink:

Also chomping at the bit, in Colorado, is Shannon, who's going to give us our beauty chop.

In Ohio, Dale and Jeff are measuring out all aspects of the engine internals, and formulating a crank plan, as well as the porting and valve train. Chris is designing specialty parts on CAD for us.

Sounds like a theme song- "We're bad-We're nationwide!"
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: GH on October 29, 2010, 09:07:22 AM
I would suggest using a panhard bar also.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: RichFox on October 29, 2010, 10:24:59 AM
I alleviated the need for a Panhard bar by having a shackle at one end only. Seems to work well.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on October 29, 2010, 10:38:25 AM
It has a panhard bar, it's just not in the pics.

This morning, I'm headed down to pick up the racing seat, HANS device, and harness.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: GH on October 31, 2010, 10:21:36 AM
Rich, when I built my Willys coupe back in 1989, I used leaf springs with the shackles on the front end of the springs and when I got it running it would weave very slowly from left to right. I put a panhard bar on it and that made it run better down the road, 140 MPH @ 9.75 ET on the drag strip. So when I built the Studebaker I used the same method of front suspension and has run 248 MPH with no problems.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: RichFox on October 31, 2010, 03:48:06 PM
My Vega has a cross leaf (Ford type) front suspension. As was common on dirt oval cars I have a shackle on one end only. The right side acts somewhat as a Panhard bar as it keeps the axle from moving side to side. The left side has the room for the spring to flex. In real life this might result in some bump steer. But on the salt or dirt it has worked fine for some time.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: RICK on October 31, 2010, 06:47:13 PM
I'm easily  confused,,,But did this deal go from Chevy to Lasalle back to Chevy?

      Dizzy  RICK

ps,  Its nice to see somebodies  shop that's as tidy as mine.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on October 31, 2010, 06:58:38 PM
I'm easily  confused,,,But did this deal go from Chevy to Lasalle back to Chevy?

      Dizzy  RICK.

Haha!

I started building a '38 Lasalle hotrod, then decided to build a LSR car. I was going to use the '41 Chevy, but switched to the '38.

Clear as mud now?
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: GH on November 01, 2010, 09:19:36 AM
Buddy, Rick is easy to confuse, just like all HILLBILLYS. ha ha
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on November 01, 2010, 07:52:21 PM
Roy Dilley has been working on the aluminum blower intake, in Washinton, and sent me some update pics.

Pete finished the lifters, and started on the cam today. The first pic is Pete on the salt in 1954.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on November 02, 2010, 09:42:46 AM
Front end is in, and car now has a new stance!

And no, that is NOT my shop!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on November 02, 2010, 09:30:19 PM
Here's a couple if pics of the new stance, with 25" tires on the front, and 28" on the rear.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Motornoggin on November 02, 2010, 11:38:28 PM
Wow! Looks all business! I love the stance and rake.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: maguromic on November 03, 2010, 12:56:41 AM
Buddy, Its looking good, thanks for sharing the pictures. Tony
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on November 14, 2010, 01:40:53 PM
I'm headed home next week, and the plan is to get the seat and steering column in, and get the car bead blasted.

Roy has the intake all machined, and just has to weld it together.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: N.F.S. on November 17, 2010, 05:58:04 AM
Can't hardly wait to see it all done.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on December 02, 2010, 08:57:07 PM
Car is apart, to get bead blasted. Need to finish welding the rear up, get the frame blasted and  painted, and run brake and fuel lines.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on December 05, 2010, 07:59:44 PM

Well, progress continues



Dale was trying to get the Donovan gear drive,angle drive, and mag fitted to the engine. The engine will have a motor plate on the front, and he was checking his measurements, before have in water jetted. Dale used a wooden cutting board, and damned if he didn't get it all mounted!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: SPARKY on December 05, 2010, 10:33:06 PM
From the looks of  that mag you better have your pistons coated or it might burn holes in them :-D
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on December 09, 2010, 03:52:05 PM
From the looks of  that mag you better have your pistons coated or it might burn holes in them :-D

HAHA!

Roy Dilley finished the aluminum intake!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Peter Jack on December 09, 2010, 06:50:01 PM
Nice piece!!! :cheers: :cheers: :cheers:

Pete
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: desotoman on December 09, 2010, 10:35:07 PM
Nice looking blower manifold. Just curious why you did not put a burst panel on it, instead of two pop offs? Maybe not enough room?

Tom G.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on December 10, 2010, 12:35:28 AM
Nice looking blower manifold. Just curious why you did not put a burst panel on it, instead of two pop offs? Maybe not enough room?

Tom G.

well, I guess because I thought it would be sufficient. Did I go the wrong route?
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: RichFox on December 10, 2010, 01:24:53 AM
Burst panel may be a more reliable way of saving the manifold. You know it will burst and not get stuck. But it sure is easy to pop one with a little backfire when starting. Which is kind of a pain also.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on December 10, 2010, 06:21:57 AM
When I was deciding on a pop-off vs burst panel, I looked at SBC blower intakes. A lot of the street ones used the pop-off. Even if we hit our HP goals, this will only be equal HP wise to a mild to mid SBC. I thought this was a good way to go, but I've been wrong before!

Good thing is, that if I end up needing to change it out, I still have time, but I think it will work.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: GH on December 10, 2010, 09:09:00 AM
Buddy, I ran a blown big block Chevrolet for quite a few years drag racing. Also about 3 years on the salt using a manifold that had a pop off valve, never had a problem. We also use a home made pop vlave on the straight eight Buick #1950 with no problems.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on December 10, 2010, 06:54:42 PM
Sparky- we're going with special made, coated, blower pistons.

Thanks for the info guys!

Ok, we're still moving along, but it's not all that exciting!

Body is completely disassembled, and blasted. It and all the parts are getting epoxy primed, and then we'll start the body goof-off and rust repair.

We are going to get the frame epoxy coated in a shiny black, then put the body back on it, after the body is primed. We will then give it it's initial body chop. We'll just tack the top on, so that it can be removed, to weld the roll cage better.

The car will then go to GH, who is doing the roll cage. I feel extremely lucky to have someone with Gary's experience doing the cage, as I know it will be done right in regards to safety, and tech specs.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Peter Jack on December 10, 2010, 10:23:02 PM
If I were welding the cage I'd be really unhappy if you epoxy coated the frame first, as a matter of fact I might even say no thanks. The fumes that come off the paint are truly noxious.

Why not cut out the floor such that the body can be slipped over the cage and then the floor welded back in. That way the cage could be easily fabricated and then painted at the same time as the frame. The body could then be installed after the painting is done. You'll get a much better job. Just my humble opinion gained through some painful experiences. :-D :-D :-D

Pete
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on December 10, 2010, 10:32:45 PM
Um, yea,...um, that's what I meant!

That's a good idea. I guess in trying to plan all this, and get so much done in a limited time, I didn't think about the coating and fumes.

Thanks a lot!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on December 12, 2010, 06:25:28 AM
I chatted with GH, and we'll leave the areas on the frame that need to be welded on uncoated.Thanks again Peter Jack!

...and the saga continues!

We're working on the bellypan, so that we can run /BVGCC. Obviously, we'll have to make some mods to it, but we have it 'roughed' in.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on December 12, 2010, 07:04:04 PM
I forgot to ask...

I'd like to weld the nuts on top, and run counter-sunk bolts from the bottom, so that the heads are flush with the bellypan.

Will this be acceptable with tech? If not, anyone have a good solution?
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on December 14, 2010, 06:50:12 PM
Boring stuff, but necessary . We don't want the body to rust, now that it's blasted, so we coated it
an epoxy sealer primer.


Still need to know---- :?      I'd like to weld the nuts on top, and run counter-sunk bolts from the bottom, so that the heads are flush with the bellypan.

Will this be acceptable with tech? If not, anyone have a good solution?
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: RichFox on December 14, 2010, 08:55:30 PM
I'm not tech but I sure can't see any reason it wouldn't be OK.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Peter Jack on December 14, 2010, 09:09:02 PM
It's probably fine with tech, but I'd be sure to remove the bolts right away after you get home from an event or you might never get the pan off.

Pete
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Stainless1 on December 14, 2010, 09:28:30 PM
Through bolts with nuts on as many parts of a Bonneville car as possible.  If bolting in an inaccessible area you may  not have a choice.  Salt will be everywhere, use anti-seize or moly grease on your hardware.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on December 15, 2010, 09:01:37 AM

Thanks guys!
 
Most of the bolts are not accessible, so this will work well for us. We use anti-sieze in 5 gallon buckets at work, so we'll use plenty!
 
We'll be removing the bellypan to run /BVGALT, and will blow the car apart afterwards, to clean and get ready for WOS. We'll only run BVGC at WOS.
 
Of course, that's IF the engine stays together. We're trying to get a lot of ponies out of a long stroke, weak block flathead. There is very little center webbing to hold the side together. We'll have a thick crank girdle, and a thick 'bridge' on the top. This will be a thick plate, across both banks, with the intake and exhaust ports cut out. Hopefully this works!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: dw230 on December 15, 2010, 11:10:14 AM
You will best advised to written approval of the top plate from the Vintage Engine Committee before proceedimg with the build.

DW

Vintage Engine –XO/XXO
Mike Stewart
909-585-9950, 909-855-1648 cell
m.stewart46@yahoo.com
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: maguromic on December 15, 2010, 11:37:02 AM
X2 what Dan said.  You can be assured that some sort of rule proposal on plates on top of vintage engines  :-o will be coming next year.  Better to design with that in mind.  Tony
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: RichFox on December 15, 2010, 02:12:23 PM
Build it into your blower manifold. Which looks very nice, by the way.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on December 15, 2010, 02:31:43 PM
You will best advised to written approval of the top plate from the Vintage Engine Committee before proceedimg with the build.

DW

Vintage Engine –XO/XXO
Mike Stewart
909-585-9950, 909-855-1648 cell
m.stewart46@yahoo.com


Ok, I will. Guess I didn't see anything in the rules about it.

What if I do as Rich suggests, and make it part of my intake?

edit: I just spoke with Mike Stewart, and he said that based on what I described he didn't see a problem. He did say, however, that I need to submit the request, and they would look at it.

He also expained why some people might feel there is a concern. This plate does not affect the heads at all, it simply bolts on, and strengthens the block.The first pic shows the top of the block. The second shows my poor paint skills, where I attempt to show where the plate would go.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on December 17, 2010, 02:28:47 PM
Frame and body are now coated, although we didn't coat the areas where GH will have to weld!

My wheels came in from Bob sage at The Wheelsmith. Wow, ordered and shipped in the same week, and that included the mounts for the Moon discs!

Body is now going back on, so that we can get the drivetrain 100% finished, beauty chop done, and the roll cage in.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on December 24, 2010, 11:53:32 AM
You will best advised to written approval of the top plate from the Vintage Engine Committee before proceedimg with the build.

DW

Vintage Engine –XO/XXO
Mike Stewart
909-585-9950, 909-855-1648 cell
m.stewart46@yahoo.com


I submitted the request, and received the ok from Mike Stewart. Dan, I believe he CC'd you on it.
I also got the ok to split the siamesed ports.

So, onward we go!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Seldom Seen Slim on December 24, 2010, 12:08:03 PM
Great that you've got the official's words on the project.  I'd suggest further, though -- that you print out the response and stick that in your three-ring binred when you keep your logbook.  It might happen that the fellas inspecting your car out there - will not be familiar with the interpretation of the rule(s) and you'll have available proof of your intentions.

Best wishes - and we all look forward to seeing you on the salt!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on December 24, 2010, 12:25:29 PM
Slim, that's good advice, and exactly what I'm doing. Both Doug Robinson and DW had suggested that early on, when I contacted them on rule clarifications.

Thanks for the advice!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Rex Schimmer on December 24, 2010, 02:31:49 PM
38flattie,
I see you using a quote from Bob Akin, " You can't make a race horse out of a pig. But if you work hard enough at it you can make a mighty fast pig. - Bob Akin"

Did you happen to know Bob,(R.I.P.) I worked for Interscope Racing back in 82-83 and Bob was one of our competitors. I think the quote refered to Bob's Porsche 935 that he had built by ? Klem (can't think of his first name!!!) 935s were basically a pig but as Bob says if you work hard enough (and put enough money into them) you can make a might fast pig!

Love your build! Looking forward to see you at the salt.

Rex

Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Tman on December 24, 2010, 05:35:22 PM
Looking good 38flattie and team!

 You guys inspired me to seek out some help, yup another HAMB derived team! 6inarow my good buddy Tom from the wrong end of the state jumped in with all his 6 banger knowlege and paddock of motors! 8-)
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on December 25, 2010, 08:55:50 AM
Rex, I never met Mr Akin. I'm not sure where I saw the quote, but it seemed appropriate, since a '38 Chevy is pretty much a pig. So, it seems the most we can hope for is a fast pig! :evil:

Merry Christmas everyone!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: RICK on December 27, 2010, 12:24:10 PM
 Beauty chop and cage?  How much is a 'beauty chop'? I hope you can post pictures of it every step of the way. The reason I'm so interested is,,,,,I've chopped four 37-38 coupes and never liked the results. And it may be that I feel the shape is perfect as is?
 I think I also read that you are getting help from all over the country,,,, It would be nice if the guy building your cage would have the opportunity to glue it in while the roof is off. That way it can be built as large as possible(more room for you) and the welder can get good penetration ALL the way around the tube.
  Please post lots of pics.

    Good Luck,   RICK
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Cajun Kid on December 27, 2010, 12:29:34 PM
Beauty Chop is 3"  max and the same front and rear.

Charles
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on December 27, 2010, 12:40:03 PM
Yep, 3"

Rick, I agree that the 37-38 look better unchopped. I've never owned a chopped car before, and never planned too. However, this is not being built for looks, but to go fast, and every little bit we can do should help this 'brick'.

GH is installing the cage, and it will be a Funny car style- if we have to use it, I want the best possible! I agree that being able to get good welds on it is very important. I have spoken with Gary, and we decided to chop the car, then install the cage. The cage will be measured, tacked, etc, then we will pull the body off to finish welding the cage.

The body and floors will be installed once the cage is fully welded. If everything was being done in one location, we could have cut the top, installed the cage, then finished the top.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Jonny Hotnuts on December 27, 2010, 03:34:00 PM
Quote
and every little bit we can do should help this 'brick'.





The improvement in Cd and CdA a 3" chop will make is significant and on multiple levels.
It will:
1. lower frontal area
2. Reduce the coefficient of drag .03 (and depending on vehicle profile may be more related to #3)
3. may help reduce a low pressure (and generated lift) behind the back window.

Less it may be harder to exit the vehicle I cant see any disadvantages to a chop. 

I am really liking where you are going with this entire project.

~JH

Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on December 27, 2010, 04:06:42 PM
Thanks for the info, and kind words, JH!

We are waiting on an answer from the tech committee, on how we can do the chop. The rules specify up to 3", equal front and rear, but that's it.

 ideally, we would leave the windshield alone, then slightly angle the 'b' pillar and rear window forward.

However, we may be required to leave everything where it is, then add a strip of metal in the roof, making a longer roof, so that everything fits.

Here's a pic, of what I think is the perfect chopped 37-38 chevy. I sure hope we can do it this way.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Stan Back on December 27, 2010, 07:11:33 PM
Just don't use the LaSalle grill and the fender skirts -- but you knew that.

Stan
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on December 27, 2010, 09:36:41 PM
Haha! Don't worry Stan, I won't!

Ok, just got the go ahead on the chop, so that's coming up next! :evil:

Stay tunes- lots of pics coming!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Stan Back on December 28, 2010, 12:13:07 PM
"Ok, just got the go ahead on the chop, so that's coming up next!"

So can you share with us what your guidelines were?

(I believe you'll also have to lean the sides in a little if you're allowed to use the existing roof.  Or, are you having to lengthen and widen it?)

Stan
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on December 28, 2010, 04:25:14 PM
Certainly Stan.

Here is the question I posed:

I just got a call from the guy doing the beauty chop, and he has a
couple of questions. He says that to make the chop fit right, he needs
to lean the 'b' pillars (the pillar the door latches to) forward, and
tilt the rear window forward a tad bit.Chop will be 2-7/8".

Because of the curves, is not possible to simply cut 3" out of the
roof, as you could on a car shaped like a Model A. I do not believe
leaning the 'b' pillars forward will give me any aerodynamic advantage-
I think I'll still be pushing a brick! Lol!

Is this permissible?

And here is the response I received:

Your way is the most common way to do it. I would not slant the
windshield back unless it was going to be a altered.

So, to clarify:

So just for clarification, slanting the 'b' pillar and back widow is
acceptable for /BVGC?

Answer:

Yes.


So, we'll do the chop, with the least amount of mods to the existing
lines as we can! :evil:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: RICK on December 28, 2010, 04:51:29 PM
May I ask,,,,WHO gave you that 'clarification'?

         Thanks,   RICK
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on December 28, 2010, 05:04:47 PM
Rick,

It was Doug Robinson - Vintage Coupe & Sedan Chairperson
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Jonny Hotnuts on December 28, 2010, 07:22:35 PM
Depending on the vehicle slanting the back window forward may be better then slanting the windshield back as far as the aeros go.
Fact is that with a chop, something forward or back has got to give. Personally I would like to see the rule to be equal forward and back movement, and feel this would keep the lines closer to OEM but also can see how this would be much more difficult for an inspector to judge.


~JH

Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on December 28, 2010, 07:52:38 PM
JH, I would sure like to be able to do the chop as you describe! :-D

Rick, you wanted lots of pics, so here are the first ones. Bracing is in.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on December 29, 2010, 09:40:24 PM
These are for you Rick!  :evil:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Tman on December 29, 2010, 10:17:04 PM
So far that is one of the best 37/8 chops I have seen. The shop I worked at did one that was not a swoopy in back. Very cool.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: jimmy six on December 31, 2010, 02:19:46 PM
From the pictures it is obvious that the profile of the car has changed (I don't mean just a top chop).
The rear defintately has a different look.

I do not know how it will be interpretated by SCTA orules but top chopping today seems to have a different meaning than it did in the 40-50-60's probably because of the rat rodder craze.

As I remember them, most old 30-40's coupes were chopped by splitting the top accoss the top in both directions and then completing the amount you wanted to take out of the A-B-& C pillers then placing the 4 pieces of the top back on their respective piller. A gap naturally happened accross the top in both directions and it, if done correctly, was filled in by the additional "doner" top to keep the profile the same. Same for the doors extra doors were needed to fill the gap at the top. A lot of work and a real pain in the butt but the profile remained exactly the same on the chopped car as the original car. The straight top Fords never had to worry about all this.

I alway liked the original profile of the late 30-40's Fords and Chevys especially when they a 2 or 3" chop keeping the same look as the factory..........Good Luck the car look great.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: dw230 on December 31, 2010, 02:50:30 PM
JD,

Apparently this chop got the OK from Doug Robinson. See reply #67.

DW
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: jimmy six on December 31, 2010, 03:06:57 PM
DW Hey no bigge...I just know what I like and I would do if I was chopping a top. I was trying to remember what Mitchell did with his '37 and can't remeber other than I liked it. Mich doesn't run a blower so the classes don't mean much yet. You can see by my response I excused myself from the SCTA other than making sure it doesn't get you in trouble and he did before he started. I mentioned profile because I like them to look stock. A few guy I know have chopped '53 Chevies and now the trunk is a foot longer and to me looks like s--t.....................JD
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on December 31, 2010, 03:11:58 PM
Jimmy, I know what you are saying. That is exactly why we waited, until we had an answer on what was expected for a chop.If we had been told that we needed to do it on the manner you presented, then we would gladly have. Obviously we hoped we could do it this way, as it is far easier, and may have aerodynamic advantages over the other way.

Please remember, we aren't trying to circumvent the rules, but rather, we are trying to follow them to the letter. I've asked a lot of questions, all of which were probably obvious to an experienced LSR hand.

...and I'm pretty sure I'm not generally considered a 'rat rodder'! :wink: :-D :-D
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Cajun Kid on December 31, 2010, 03:20:00 PM
JD,

Apparently this chop got the OK from Doug Robinson. See reply #67.

DW

That chop does "LOOK" good,, I would sure want a ruling in writing as it sure changed the profile and the relationship more than I read the rules.

Don't get me wrong, but for "Classic"  that "may be a problem".. I hope not as I love that look.

Here is my 39 Chevy (with NO CHOP)
(http://i261.photobucket.com/albums/ii43/cajunkid5690/scan0008.jpg)


(http://i261.photobucket.com/albums/ii43/cajunkid5690/IMG_0012.jpg)

(http://i261.photobucket.com/albums/ii43/cajunkid5690/IMG_0846.jpg)

Charles
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: debgeo on December 31, 2010, 03:27:43 PM
 :cheers: :cheers: :cheers:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on December 31, 2010, 04:18:47 PM
Charles, that's a GREAT looking '39! :cheers:

I too, like cars with a stock look. I always swore I wouldn't own a chopped car. However, my desire to go as fast as possible, seems to have overridden the desire for the stock look.

This '58 Del ray, stayed stock, except for the tri-power. I removed these rims after I bought the car. It has since been sold to help finance this build,

The '29 Graham Paige is stock also. Here are a couple of pics of my dad, and granddaughter, leaving for a ride. It too, will be sold to finance this project.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on December 31, 2010, 06:43:26 PM
Love it or hate it, here is where we are at. Here is Shannon's message:

--------------------------------------------------------------------------------

Here is some progress for the day. Once I get the other side all tacked together, I am tackling it with a wire wheel to get all fo the primer off. Shouldn't weld over primer. These are only tacks. Then I am getting out the hammer and dolly to massage it as I weld it. The welding will be really slow, so after it is all tacked together, I will not really be showing to much progress. But here we sit as of today. I am still working on it but she is getting there.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Tman on December 31, 2010, 06:54:13 PM
Two arguments can be made here. Chopping it your way (which is right regardless of historical hotrod/custom tradition) yields a better looking, better executed chop. Sure the rear profile is different but so is the SIDE PROFILE, thats the nature of chops. Doing it JDs way (traditional and I helped on a couple like that years ago) makes for a harder chop, as in more seams. But, it also changes the profile of the turret when viewed from fron or rear. The top gets WIDER in the crown when done this way! So, if someone will argue that the rear of the roof is more aero your way, someone else can also argue that maybe the wider profiloe ALSO has an advantage?

Just playing devils advocate. :evil:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: SPARKY on December 31, 2010, 07:35:47 PM
fairly well too  :-D
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Tman on December 31, 2010, 07:59:30 PM
fairly well too  :-D

The more you guys get to know me the more you will see my 180 degree view of the worlf :-P :wink:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Peter Jack on December 31, 2010, 08:22:55 PM
We look forward to it!

Pete
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: jimmy six on January 01, 2011, 01:02:44 AM
38...Hey I'm OK with anyway it's done. I just like the side profile of the top when it just looks chopped and doesn't change the rear angle...it's a personal thing with me. Funny thing T is right when you split the top 2 ways it IS wider that's why I mentioned the doner top and doors from "back in the day".

Many years ago Ray Hedsrom (once holder of the XO/VGC record) chopped his 41 Chevy coupe over the winter and used lotsa of "extra" pieces just like you are. I'm sure it will look grate when you are done. I'll just leave my '40 Chevy coupe alone (it too once held the XO/VGC record) now long retired.....
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: SPARKY on January 01, 2011, 08:04:47 AM
" I'm sure it will look " grate " when you are done. I'll just leave my '40 Chevy coupe alone."

JD  was that intentional or just a subconscious Freudian  :-o , that speaks to your opinion?  :wink:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on January 01, 2011, 09:23:47 AM
" I'm sure it will look " grate " when you are done. I'll just leave my '40 Chevy coupe alone."

JD  was that intentional or just a subconscious Freudian  :-o , that speaks to your opinion?  :wink:

Man, that's funny!

JD, I know what your saying! I really appreciate all the comments, advice, and even criticism, from everyone. Being a first time LSR build, I know I have lots to learn, so the more 'eyes', the better

Happy New Year everyone! :cheers:


Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: GH on January 01, 2011, 04:44:34 PM
Buddy, I had a 58 Del Ray when I got married back in 62.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on January 01, 2011, 04:54:09 PM
Gary, That's cool!

My dad has an Impala, that we finished couple years ago. it was a parts car, out of Oklahoma City, and took us 6 years to finish.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Seldom Seen Slim on January 01, 2011, 05:17:23 PM
Gary, how stylish -- baby moons and all.  I betcha you were THE man back then -- and of course you're still the man in your neighborhood.  I mean, how many guys that live near you have a racing Studebaker and a 1950 Buick in their resume?  Nice car, it was.  What motor did it have -- just curious.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on January 01, 2011, 09:59:51 PM
Buddy, I had a 58 Del Ray when I got married back in 62.

Gary, my folks were married in '62 also, in Springfield, Mo. I was born there in '63. Dad still lives about 75 miles from there

Small world sometimes!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: jimmy six on January 02, 2011, 03:34:33 PM
Hey I'm 66 and semi dyslexik..................is was a misspell and non-proof read...........no word game intended...........JD
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: SPARKY on January 02, 2011, 05:49:49 PM
LOL   jeez JD what a disappointment,  we were all for giving you extra credit for original and creative--- hoping at the very least it was a Freudian 
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on January 02, 2011, 06:44:29 PM
LOL   jeez JD what a disappointment,  we were all for giving you extra credit for original and creative--- hoping at the very least it was a Freudian  

No kidding!! :cheers:



Team member Dale Hays(BoredandStroked) has been busy -- made a set of aluminum 'FlowBench' lifters. They're designed to go into the lifter blocks - the top has a flange so they can't drop down. Joe Abbin, author of "Blown Flathead" is doing the flowbench work for us.

These make it easy to put some 'setup springs' on a couple valves and set the valve open height to be .100, .200, .300, .400 and .500 -- then test the flow with all the rest of the things we need to try. We'll be using a junk block as a guinea pig - so we have plenty of ports to try. One thing that is different on a FlatCad versus a flathead Ford is that the ports are not the same - front to back, there are actually 4 different intake port lengths/shapes, similar for the exhaust. ( Darn Cadillac engineers!).

Here is the type of stuff that will be done:

1) Base line numbers with stock ports, stock valve sizes, etc..
2) Rework the valve bowl areas (lots of room for improvement), start the porting procedure (doing all the normal 'short-side' radius work, hogging out the runners, etc).
3) Test a variety of larger valve sizes to determine when we are port restricted (with a competition port) - versus valve restricted. We can go up to about a 2.05 intake and a 1.75 exhaust -- though we may find that we run out of flow at smaller valve sizes. Dale Hays's guess (and that is what it is ) is that at about a 1.94 intake, we'll be done.Jimmy Stevens and Ron Main both said bigger is better, though, so we'll see what testing says. Keep in mind that we will have a large-bore 6-71 on the top with a Enderle Bugcatcher - so we'll be force-feeding it . . .
4) Test with our new combustion chamber designs and proposed block reliefs. We've carved up some prototype combustion chambers on a CNC mill - directly from the cool SolidWorks designs that Chris Daniels has done.

Flowbench testing isn't going to tell us exactly what works or how much HP we'll make -- but hopefully it will give us some dang good ideas to try . . . the dyno and the track will tell us if we did the right things.

The hard part is that we have NO real numbers for baselines for ANYTHING - other than the testing that was done about WW2 timeframe (see pics)--- so we'll just use the knowledge/experience of the group, throw a bit of luck in, send a few prayers to the Flathead Gods and see what happens. Time always gives us answers . . .
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on January 03, 2011, 07:11:05 AM
Can anyone tell me how I would need to set the car up differently for El Mirage? I know the gearing will be different, and the jetting, but what about weight- similar to the salt, or lighter?
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: desotoman on January 03, 2011, 03:38:20 PM
It will be interesting to see what your flow bench dictates. Back in the 80's I did the same thing with Barney Navarro on the flathead ford. The results of all that work Barney and I did were the Hi Dome Navarro heads. I spent many hours on the flow bench at Navarro's and the results were very interesting. I used clay to change reliefs, port radius's etc. We ended up attaining max port velocity. It did not matter if the valve was in or out of the block, it flowed the same.  You will find there are a couple of different ways you can go.

Dale Hays is a good guy, and very sharp. Back in the 80's I knew Dale when he lived in Lomita, CA. At the time he had one of Isky's .500 lift flathead cams that was made for Jazzy Neilson. Only 3 were ever made, and they ran without cam bearings.

Good luck,

Tom G.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on January 03, 2011, 04:17:07 PM
Thanks Tom!  Dale still has the Isky 505! Pete Samuelson, one of our team members, copied Dale's cam, and has a 505 master.

It's actually one grind we are considering, along with a couple of others. Jimmy Stevens offered to let us use one of his grinds., either the same as he ran with Costella, or his bigger one. Joe Paneck made us two billet cam blanks, but grinds are still being explored.

Back to Dale, you're right about him being sharp! He specked out our crank for Crower. He did such an amazing job, that when it was presented to Crower, the crank cost was $900 less than originally quoted.

After your experience with Barney Navarro, I know you fully understand what we are doing. It seems fewer and fewer guys look twice at flatheads anymore.  ...Of course, the Ford guys that do, have taken things to a new level in the last few years!

For Cadillacs, unlike Fords, there are no parts, except for custom made, and no testing data!

Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: jimmy six on January 03, 2011, 09:45:38 PM
When I ran in XO/VGC I made no changes from El Mirage to Bonneville. Please note El Mirage TO  Bonneville. Because the run at Bonneville was longer than El Mirage and the head made more heat I did not and would not lean it. I was using carburators at that time. I also used the same gear. El Mirage is a long drag race...If you are close to a record and miss a shift you might as well turn off.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: GH on January 04, 2011, 12:08:46 PM
Jon, my old 58 had a 283 with a 3 speed behind it.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on January 08, 2011, 11:59:33 AM
I thought I'd send some pics of the engine that motivates this build. The owner tells me it ran at Bonneville in 1950, and was a AK Miller build. I have been unable to verify the 1950 runs.

It's a pretty radical engine- domed pistons, huge valves, extra head bolts,Chrysler rods, front mount blower, crank weights cut WAY down,adjustable solid lifters,modified lifter blocks, and water ports all down the side.

My goal is to build a little more modern version of the engine.

I'd run this one, but Aaron won't sell it to me!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on January 08, 2011, 12:02:43 PM
few more...
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on January 08, 2011, 12:05:23 PM
last ones
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: salt27 on January 08, 2011, 01:36:21 PM
Thanks for the flat Caddy pictures, what a cool engine.
This Caddy is going in a model A roadster.
A Friend of mine says the 392 Hemi is a light weight casting compared to the flathead Caddy. :-D

Don
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on January 08, 2011, 01:52:26 PM
That will be a nice mill in a Model A!

One of my buddies has a site, www.flatcaddy.com, that has parts for these engines. Your friend might want to check out the cast aluminum timing cover, and valley plates, cast by another friend from the land of OZ.

Yes, they are heavy- 900lbs for just the dressed engine!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: desotoman on January 08, 2011, 02:10:37 PM
Thanks for the pictures. Some things I like about the Caddy compared to a Ford Flathead, Bottom end deep skirt design is much stronger and makes it easy to make a girdle for the mains. Huge base circle on the cam. Removable tappets are very interesting, don't know if that is good or bad. It is good for being able to make better lifters etc, but it could be bad depending how they are attached strength wise. It will be interesting for sure.  

Neat Crank, I would hang that on the wall, as a conversation piece. All in all it looks like it should be able to stay together better than a Ford. Are the Crankshaft mains located in the centerline of the bores or is it offset? If you get a chance could you take a picture of the valley area where the lifters bolt on?

Thanks again for the pictures, pretty neat motor.

Tom G.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Rex Schimmer on January 08, 2011, 02:15:22 PM
I can see why your friend won't let you run that engine, it is a piece of real "Hot Rod History"!!! It should be rebuilt and put in a museum, I would bet that Speedy Bill would love to have it!  Who ever built it really was an innovator and it certainly could have been Ak Miller as he was a pretty creative guy. The bolted on counter weights are really something and the two socket head cap screw, they look like they are probably 1/2 inch and they are the old "series 36" style with the small dia. heads. Imagine the stress on these with that 4-6 lb chunk of steel swinging around at 5000 rpm! The cam shaft is a true work of art, and it must be a bolt together design as I can see no other way to get the bearings on, wonder who made that? Do you have a picture of the heads? specifically the amount of dome that they have in them as  the "pop up piston" was the real state of the art for flat heads in those days. The intake manifold is another neat piece with the cooling fins top and bottom. That motor is just to neat to be ran in a race car but it certainly has many innovative ideas that you should incorporate into a new motor. Thanks for sharing the pictures!!!!


Rex
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on January 08, 2011, 03:04:30 PM
Tom, Here are the best pics I have. I'm at work in Pennsylvania at the moment, but can take more pics when I get home.

The mains are offset, and there are only three- this is on of my biggest concerns. The other big concern is 'splitting the block. Other than the front and rear of the block, there is only the one center web you see in the pic. It is also the only water passage from one side of the block to the other, and is one of the areas prone to cracking. This is the main reason for the 1/2" top plate across the engine.

You're right about the bottom end- it's heck for stout! Add a crank girdle, bigger mains, and the top plate, and I think it will be a beast! :evil:

Rex, yes, it is a very iconic engine, at least as far as Caddy flatheads go. You know these engines are the same ones that were used in tanks in WWII, correct?

As for 5000 rpm, the engines were rated as 3450 rpm's in passenger cars, although the military did a lot of testing at 4000rpm. 150hp, and 260 lbs torque- monsters in there day! The camshaft is a reground, factory, one piece cast iron, 1.375" in diameter! The gear on the back of it was part of the one piece cast. Sorry, I don't have any pics of the head chambers, but I'll see if Aaron will send me some.

And yes, we have incorporated many of the feature- blower, big valves, pop-up pistons, dual water feeds, extra head bolts, etc.

...and a whole lot of trick stuff they didn't!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Rex Schimmer on January 09, 2011, 04:30:34 PM
Another thought about linking the two sides of the block together, you might consider using a thick aluminum plate that picks up the 4 cast and machined lugs that the lifter carriers attach to and then machine the lifter bores into the plate. You would probably need a pair of plates one for the front and one for the rear but it would help (I think!) You could also use steel just to get the expansion rate the same, just takes longer to machine and adds some weight.

Rex
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on January 09, 2011, 06:41:06 PM
Rex, we looked at that, but it is far more work, and we're running out of time.

Plating it there will raise the lifter blocks, which bolt to those tabs at an angle. Therefore, we would have to redesign the lifter blocks for clearance.

After we run this engine this year, we know we'll have more work to do. We are already planning roller lifters for the next version, but time and money limit this this year. With the roller lifters, we'll redesign the lifter block, and may visit this idea again.

Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on January 10, 2011, 06:52:00 PM
It's starting to look like better....
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Stan Back on January 10, 2011, 07:21:19 PM
Keep screwing with that 1/4 window and it will look like a Plymouth.

Stan
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on January 10, 2011, 09:26:32 PM
Keep screwing with that 1/4 window and it will look like a Plymouth.

Stan


Will that make the car slower? :-D Lol!



I'm thinking I need a track nose, similar to this one, for Comp Coupe class.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on January 11, 2011, 07:55:37 AM
Good news- the Caddy to Ford FE tranny adaptor is done, along with the Ford FE to Chevy SFI rated bellhousing! :-D
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Stan Back on January 11, 2011, 11:35:55 AM
Please splain that to me more better.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on January 11, 2011, 11:37:23 AM
Splain what more better?
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Stan Back on January 11, 2011, 11:38:48 AM
Hooking this to that and that to something else.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on January 11, 2011, 11:47:09 AM
Well,I needed an SFI bellhousing, or a blanket.

The only common flywheel that I could find with a large enough diameter was a Ford FE flywheel. I had Pat Mcguire, at Wilcap, make me an adaptor, to allow a Ford Fe bellhousing to bolt to the Caddy engine, and use a Ford hi-torque starter.

Because I like the common Chevy tranny bolt pattern, I bought a SFI certified Ford FE bellhousing, with a Chevy tranny bolt pattern.

Hope that clears it up. :-D
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on January 11, 2011, 12:18:57 PM
Well, damn the luck! I was just informed that if we wish to compete in either XXO/BVGCC or XXO/BVGALT, that we will need a parachute.

Any suggestions on an inexpensive one?
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: SPARKY on January 11, 2011, 12:20:40 PM
Geez  :-o cross breeding is alive and well in LSR---  :cheers:
you guys better watch it or someone will be following you around for a DNA sample and  will be sending it off to a Lab for evaluation!!!!!!!  :evil:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Stan Back on January 11, 2011, 12:28:52 PM
That BMR car is still ruining all the fun!

Stan
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: wlarryglick on January 11, 2011, 12:53:11 PM
<snip> ... that we will need a parachute.

Any suggestions on an inexpensive one? <snip>

"Inexpensive parachute" is an oxymoron.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: dw230 on January 11, 2011, 01:07:28 PM
Do you read other threads?

Look here:

http://www.landracing.com/forum/index.php/topic,9057.0.html

DW
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on January 11, 2011, 02:55:21 PM
Geez  :-o cross breeding is alive and well in LSR---  :cheers:
you guys better watch it or someone will be following you around for a DNA sample and  will be sending it off to a Lab for evaluation!!!!!!!  :evil:

LOL!
 
I guess I better not mention the Ford front end, modified Chevy rods and mains, and Chrysler lifters then! :-D


Dan, I did read that thread after you posted it. When I first posted, I had just received the email from Doug Robinson, and was feeling a little overwhelmed, I guess.

We'll get one, and get it installed properly.

Luckily, I was planning for the future, and ordered all the roll cage materials in 1-5/8", .132" wall thickness! :cheers:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: jimmy six on January 11, 2011, 03:29:56 PM
racingjunk.com
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on January 11, 2011, 08:34:17 PM
racingjunk.com

Thanks JD!


Some update pics.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on January 11, 2011, 08:35:32 PM
Few more.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Buickguy3 on January 11, 2011, 09:04:39 PM
Wow! That looks like the plastic surgery on Phyllis Diller's face. Great job.
   Doug :-o :cheers:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on January 11, 2011, 09:14:56 PM
FrankenCad? :-o
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: SPARKY on January 12, 2011, 12:55:45 AM
As big as that thing is with its Aero----you just need a bag and a teather to stick out in front---your "chute is going to be permantely deployed and most folks will not even recognize it.  :-D
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on January 12, 2011, 05:08:34 PM
I'm not sure if I should laugh or cry at that analogy...because  it's true! :cheers:

Therefore, the Bob Akin quote....
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on January 12, 2011, 09:10:51 PM
Getting closer.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: SPARKY on January 12, 2011, 09:14:45 PM
But what a classy looking fast pig  :-o it will be---
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Geo on January 12, 2011, 09:42:08 PM
New proverb

may a thousand cuts give beautiful results   :cheers:

Geo
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on January 13, 2011, 08:44:14 PM
Rick, here's a couple more for you.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: RICK on January 21, 2011, 10:10:41 AM
 There's something about the NEW shape of the quarter window that I can never get used to. But don't get me wrong,,,,, The chop turned out BEAUTIFUL. Until you do one, it's hard to appreciate the planing, pie-cuts, and stretching, how much difference a hack saw blade width cut can make. Your guy did GOOD.

Now the question; In the 'VINTAGE' body classes, you have to KEEP the drip rails? How about the little awning above the front vent window? Or for that matter,,,can you do away with the vent, and make it one piece door glass? The 38 door has a slight 'KINK' at the rear of the 1/4, front of door window.


   Just curious,  RICK
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on January 21, 2011, 04:18:13 PM
Car looks okay, but I kind of liked it better before the chop- and yes, that rear quarter window is different! Shannon did a nice job on the chop, overall.

Yep, drip rails must remain in Vintage Coupe! I do have written permission to remove the wing windows, and use a one piece Lexon window.

All of this, though, is a moot point! I'm no longer going to try and build the car to run in BVGC.  :-(

After mocking the car up last night, I just decided it wasn't worth it. The 2% engine setback rule doesn't bode well for the Flatcad! I set the engine in, and the rear cylinders are in the same location the stock engine's rear cylinder would be. To meet the rule, the engine sets, in my opinion, way to far forward-after moving the engine as far as I can, I would have to move the engine an additional 2.5" forward.  In addition, I have a transverse front spring. To set the engine far enough forward, I would also have to raise the engine 2". If I installed an IFS, or similar, I wouldn't have to raise the engine.

Moving a 1000 lbs 2.5" forward. and up 2", is just too much. I really want to bring the engine DOWN another 3". I'm not comfortable, having all that weight, that high up in the air, in that location.

Instead, we're going to concentrate on building a car that should be more 'balanced', with a low CG. We'll set the engine back probably 10-12%, and concentrate on BVGCC, and BVGALT.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 4-barrel Mike on January 21, 2011, 05:29:00 PM
???

2% engine setback on a vehicle with a 112" wheelbase means that the frontmost sparkplug is 2.24" behind the centerline of the front suspension.

And you have to raise the engine 2" to achieve that?

Mike
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on January 21, 2011, 05:39:18 PM
???

2% engine setback on a vehicle with a 112" wheelbase means that the frontmost sparkplug is 2.24" behind the centerline of the front suspension.

And you have to raise the engine 2" to achieve that?

Mike

YEP!

Right now, the set back is 4.75", The front of the block is almost against the front crossmember, that has the tranverse spring under it. In order to go forward 2.5", I would have to raise the block 2", or do some drastic changes(like IFS) to the front suspension.

I could go solid mount, get rid of the spring, and notch the crossmember, but I would still have a lot of weight pretty far forward...

Skip Pipes- Thank you very much! The chiller/intercooler and water pump arrived, and they are everything you said they were!!! :-D
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Richard 2 on January 21, 2011, 08:10:46 PM
38flattie, Where did you get the electric water pump.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on January 21, 2011, 08:41:57 PM
Richard, it is a Stewart water pump. I'm just using it to circulate the chiller.

Here is a pic of the problem area, with 5.5" setback, and a couple mockups at 5.5" It still needs to go back about 6", and down.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 4-barrel Mike on January 21, 2011, 08:45:21 PM
Ah!  I'd forgotten about that!

Now, if you had stuck with "GM" engineering (parallel leaf) instead of Ford (traverse).....  :evil:

Nice build though!

Mike
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Richard 2 on January 21, 2011, 09:38:43 PM
Thanks 38, I like your build, You would think an old motor would fit in a old car. :-D
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on January 22, 2011, 01:24:23 PM
Richard, you'd think, huh! :-D

Mike, you're correct- traverse not transverse spring! I guess if I use the correct terminology, it would be easier to understand what I'm trying to say! :-D


Here we are 14 1/2" (13%) setback down 4"  the first pics show it without intercooler but with the injector gives you an idea where it will be in relation to the hood.  The next ones show it with the intercooler. The blower should be just under the hood with the injector just poking through. The next pic shows the scrub under the car the piece of tubing is 2" square the oil pan is about 3" above the floor and the scatter shield is 1 1/2" so I will have to raise the front of the motor about 1/2" to level it up.


Is the 1-1/2 inch clearance of the scattershield enough?

Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Stan Back on January 22, 2011, 02:01:39 PM
I was just thinking -- with that blower location, you could plumb a line to the vacuum wipers and really get them flailing (or not).

Stan
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Milwaukee Midget on January 22, 2011, 02:03:21 PM
Wow - First off, the chop is beautiful.

1 1/2" with springs.  I don't know for sure, but it sure doesn't sound like enough for a suspended car.  By the time you add the rest of the weight to the front end, I think you'll be shoveling salt.  You've probably got at least 1/2" deflection in the tires alone.  If the track gets soft in places, I could see it porpoising off the front of the adapter.

You'd hate to lose that engine location.  Can you raise the suspension height and frame a couple of ticks, and channel the body over it?  There's got to be a compromise we're not seeing here.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on January 22, 2011, 02:59:26 PM
Wow - First off, the chop is beautiful.

1 1/2" with springs.  I don't know for sure, but it sure doesn't sound like enough for a suspended car.  By the time you add the rest of the weight to the front end, I think you'll be shoveling salt.  You've probably got at least 1/2" deflection in the tires alone.  If the track gets soft in places, I could see it porpoising off the front of the adapter.

You'd hate to lose that engine location.  Can you raise the suspension height and frame a couple of ticks, and channel the body over it?  There's got to be a compromise we're not seeing here.

Thanks for the kind words! It is starting to look like a formidable machine :evil:

I think we will shoot for 2" clearance, at finished stance height. I'm really against a lot of spring travel in this application. The suspension was set up 4-link front and rear for adjustability, and in case I ever decided to put the car on the street. We will limit down travel to 1/2"- 3/4", and up travel 1/2 inch.

I don't know if this is right or wrong, but it is what it is! :-D
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Tman on January 22, 2011, 03:38:01 PM
No, transverse is correct.

Sorry to see you guys having to change classses.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Geo on January 22, 2011, 04:30:24 PM
Quote
All of this, though, is a moot point! I'm no longer going to try and build the car to run in BVGC.

Wow!  You really had me worried that we lost you and this great build to some other form of racing or street only because you did not fit the class.  But then you saved me from despair at the end...

Quote
Instead, we're going to concentrate on building a car that should be more 'balanced', with a low CG. We'll set the engine back probably 10-12%, and concentrate on BVGCC, and BVGAL

Looking forward to more on this one!

Geo
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on January 22, 2011, 11:06:38 PM
I thought I'd send some pics of the engine that motivates this build. The owner tells me it ran at Bonneville in 1950, and was a AK Miller build. I have been unable to verify the 1950 runs.

It's a pretty radical engine- domed pistons, huge valves, extra head bolts,Chrysler rods, front mount blower, crank weights cut WAY down,adjustable solid lifters,modified lifter blocks, and water ports all down the side.

My goal is to build a little more modern version of the engine.

I'd run this one, but Aaron won't sell it to me!


Well, it wasn't AK Miller's, but I found out who did build it! :-D

I was talking to Doug Robinson yesterday, and we started discussing Cadillac flatheads. It seems he owned this engine, and is the one that sold it to Aaron. He told me it was Don Blair's, of Blair's Speed Shop. It was in a '32 roadster, that ran in the early '50's.


Doug didn't know how it faired on the salt, but I would sure like to know!

Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: SPARKY on January 23, 2011, 12:01:15 AM
Why couldn't you use 1/4 springs and a drop frt axle and move the frt crossmember?
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 4-barrel Mike on January 23, 2011, 09:45:00 AM
Parallel leaf is simple to implement:

(http://i233.photobucket.com/albums/ee171/4-BarrelMike/Modster/Frontsuspensionbare.jpg)

Cross steering wouldn't be a problem either.

Mike
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: dw230 on January 23, 2011, 01:34:42 PM
Send an email to Jim Miller, American Hot Rod Foundation, he has an extensive collection of all things dry lake. Jim should be able to come up with some data on Don Blair's Caddy.

miller212.842@sbcglobal.net 
 
DW
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on January 23, 2011, 02:07:27 PM
Why couldn't you use 1/4 springs and a drop frt axle and move the frt crossmember?

Ok, educate me Sparky- What do you mean by 1/4 springs?

Sparky, Mike- I agree there are ways to make this work in BVGC class. Bottom line, though, is time and money. I'm married to a Saint,but even Saints have their limits! This build is WAY over budget, so for this year, changes that cost money are out.

I will find a way to run BVGC, but not this year. We will concentrate on getting the engine dialed in, fine tuning the car, and getting our licenses and some experience this year. Next year, we can take another look at this. Thanks for the ideas and advice!

DW, thanks! I just sent Jim Miller an email. I'll share whatever history I find on this car/engine combo! 8-)
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Skip Pipes on January 23, 2011, 08:06:33 PM
Hi Buddy,

Here are some pics of ¼ elliptic springs from my HA/GR drag car. Posies sell kits, however I made these by just cutting a conventional traverse spring in half and making my own mounts.    http://www.posiesrodsandcustoms.com

However I’d second 4-barrel Mike’s suggestion on parallel setup as this would be easy to work with and it would give you a lot of open space.

Thanks, Skip
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: GH on January 24, 2011, 08:42:37 AM
Buddy, I used trailer springs on my Stude and a Vega steering gear (cross steer).
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: RICK on January 24, 2011, 10:19:35 AM
Buddy,  You are not special. We have all done it.

  It would be so sweet to have the wife run to Walmart or my local hardware store and have her pick me up a "set of frame to engine mounts for a 38 Chevy to early Caddy motor for the XXO/BVGC class please"  And the only reply the sales clerk has is, "Would you like that in paper or plastic?"

  But the truth of it is,,, We get to make all that stuff.

Maybe the best thing to do now is to 'Get in DEEPER' with the guy that is going to build your cage. Gary has several successful cars on his resume,,, so he has probably learned the hard way what works, what doesn't work, how to make what you have work, or fabricate a whole new piece that will work. And he's a Hillbilly,,, so he's thrifty.

     Good luck,  RICK

ps,   What happened to the original straight axle?
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Stan Back on January 24, 2011, 11:17:26 AM
Coulda had knee-action.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: RICK on January 24, 2011, 11:53:10 AM
Coulda,,,, Hard to tell from the first pictures,,,, Woulda been rare in a coupe.

   So Buddy,,,,,,What did it have??

 Curious RICK
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on January 24, 2011, 03:11:47 PM

Sparky, Skip, Mike, Gary- Thanks for the ideas! We'll look at changing the front end, and getting legal for BVGC next winter. Our goal next year will be to run in only that class, and see what we can do.

Stan, Rick- The car did not have the independent type front suspension, with knee action shocks. Rather, it had a solid axle, and lever type shocks- I still have this setup.

Rick, I sure don't think I'm special! After reading a ton of build threads, I realize that I'm simply experiencing some of the build pains that many have, before me. When we first mocked this up, we had room!

Ok, we didn't! I thought I understood the setback, but didn't. On top of that, we decided to add a crank snout girdle, and now I need more room in front of the engine block.

We currently have a 5" drop axle.The engine is in place, and setback 13%. Next year, I may do away with the front suspension, solid mount the axle, and move the engine to a legal 2% setback.

I started this build with 12 months to finish it, and no experience on the salt. In addition, I did not know anyone with salt experience, so I 'winged' it. The further I get into the build, the more advice I get from experienced individuals. Therefore, the more I realize that I need to look at some aspects of the build again.

Rick, believe me- I'm trying to get 'in as deep' as I can with Gary, and anyone else with experience that will tolerate my naive questions! :evil:



In the mean time, the engine is setback, and the sheet metal is going back on, so we can trim the blower openings.

Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: RichFox on January 24, 2011, 06:14:21 PM
Altered is a better class anyway.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: dw230 on January 24, 2011, 08:05:11 PM
Gonna be tough to get a head off when the record is set.

DW
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on January 24, 2011, 08:13:49 PM
Gonna be tough to get a head off when the record is set.

DW

Haha!

Just in case we have that 'problem', we're leaving plenty of room to work on it, and making an airtight access panel.

I heard back from Jim Miller on The Flatcad that ran in the early '50's.

"The  car was the DuNah-Goldman entry from Pasadena. It had a 347" '36 Cad for power. It ran 133.130 mph in '50 and 133.729 mph in '51 at the salt. It also ran 143.31 at the lakes in '50. This car was a '28-29 roadster body with a belly pan and race car nose without a grill opening. A picture of it can be found on the ahrf.com website, key number GGC_167."

The website is download protected, but I'm trying to get a picture of the car, from Jim Miller.

Thanks DW! :cheers:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Richard 2 on January 24, 2011, 08:26:26 PM
Hang in there 38 you'll get her. :-P
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on January 25, 2011, 04:57:56 PM
We hope so Richard!

Ok, a couple of thanks here!

To Skip Pipes, for the awesome intercooler/chiller and water pump! Pics posted previously. :-D

To Tony (Maguromic) for his wonderful avatar! :evil:

Oh yea,Tony,and for the great heated dry sump oil reservoir! :-D
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Peter Jack on January 25, 2011, 05:51:52 PM
Nice dry sump tank. From outward appearances it appears to do everything right. :-D :-D :-D

Pete
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on January 31, 2011, 07:41:07 PM
Nothing glamorous today, but necessary, none the less! Here's what
Randy sent me:

Well here it is 10:30 Sunday night and I ran out of welding wire so
here is some pics of structure repair and rocker replacement also note
that the doors now fit lol. So tomorrow after a trip to the welding
store ill get the driver side finished welded in an move on to firewall
replacement which I am looking forward to.

Rust repair
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on January 31, 2011, 07:42:19 PM
Drivers door before, and both doors after.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on February 01, 2011, 08:17:09 PM
Ok, so we'll end up with a 14.5" (13%) setback, and the firewall will be setbck 12"
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on February 02, 2011, 09:03:52 PM
I like the engine placement- down low and back! :-D
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on February 08, 2011, 07:52:07 AM


When I logged onto the computer this morning, I got a pleasant surprise! I received this email, and pics, from Randy :

I was able to get in the garage tonight and made some good progress here are a few pics. I got the firewall tacked in good and was able to get a little more setback we're now at 16 1/2" that gives us about 1" between back of the block on pass side and the firewall which is plenty of room.  I also rolled some beads in the firewall hope you think they are ok.  I also was able to get the motor mounts set in and the trans crossmember started I should be able to get that finished tomorrow and then I will get the injector hole trimmed out and keep movin on


I can't wait to get home and work on this!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on February 20, 2011, 01:16:55 PM
Ok, tires have now all arrived! I don't know why this excited me so much, but it does!

Gary Hart's knee is bothering him, so he is not able to do the roll cage. He and John were kind enough to recommend Sam Woodard, who did much of Hooley's cage. I took the car to Sam on Friday, so we'll have a complete cage soon!

In the meantime, much of the work is boring rust repair and body work. The mock up engine placement is done, and the cowl has been cut to accommodate the bugcatcher.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on February 20, 2011, 01:17:28 PM
Back in Ohio, Dale and Chris have been busy finishing the head design. :cheers:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Milwaukee Midget on February 20, 2011, 02:00:58 PM
In the meantime, much of the work is boring rust repair and body work. The mock up engine placement is done, and the cowl has been cut to accommodate the bugcatcher.
It's all a part of dealing with antiques, but when it's done, despite the bloodied knuckles and the shop floor covered with silica and steel dust, it's worth the effort.

I don't know how much rake you're putting on this beast (this is a beast, by the way  :-D ), but I'm thinking this might improve your ground clearance at the bellhousing. (?)

Very hip build - looking forward to future posts.

Chris
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Rex Schimmer on February 20, 2011, 02:13:25 PM
What does the other side of the head look like??

CNC machining has really expanded what can be done these days and your two piece heads are a great example of something that could not be done until CNC became available to the general public. Those are going to be some nice parts!

Rex
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Tman on February 20, 2011, 03:16:33 PM
They are being sneaky and wont show the combustion chamber :-D I dare ya guys
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on February 20, 2011, 06:06:31 PM
Chris, your 'beast' comment made me laugh out loud! I often refer to the Flatcad as 'The Beast.! Thanks for the kind words about the build !t's been a fun build, although a bit stressful, with all the changes we've made.
 
I should have measured the overall height, but I venture to guess it's around 54". Pretty short, and sits low, clearance wise! We have 3" of rake, with 25" tires front, 28" rear. This leaves us with 2" clearance at the bellhousing.
 
So, is 2" enough, or do we need more?
 
Rex, I sent you an email explaining that we won't be posting the chambers until after we have tried them. I will post pics this fall! I'm already working on the next version (OHV) of heads, so these will be history anyway.
 
Trent, you know I like a dare, but will have to pass on this one!

Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Tman on February 20, 2011, 09:03:02 PM
I would pass as well, gotta keep at least ONE ace up yer sleeve :-D

BTW, that car has awesome STANCE! reminds me of a Silver Supergas 37/8 that was around in the 80s.............which I think was spotted up here on teh 1/4 mile last summer, gotta dig out the mag................

Way to go guys, just doing small,non photogenic work on ours these last couple weeks.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: GH on February 21, 2011, 09:52:25 AM
Buddy, 2" at the bellhousing? The oil pan is probably about the same distance from the ground. Be careful loading and unloading the car off and on the trailer and don't smash the oil pan like I did.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on February 21, 2011, 11:11:26 AM
Thanks for the advice, Gary!


As you can see in the pic, I have about 2" clearance. That is a 2.5" piece of square tubing. The oil pan has more clearance, and still needs to be made shallower.

I had to use a Ford FE bellhousing, so it fits differently than the factory bellhousing

Is 2" enough at the bellhousing?

Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Peter Jack on February 21, 2011, 02:13:45 PM
In oval track racing we've been known to trim the bottom of the bellhousing flange flat to obtain extra clearance.

Pete
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Rex Schimmer on February 21, 2011, 03:34:35 PM
I agree with Pete, wack of the bottom of the adapter flange, you have plenty of bolts and if you are going to dry sump the engine I would make the pan as flat as possible, all of this allows you to run the car closer to the ground which in a car like yours helps the aero. I know that you have pretty much got the engine in place and this  is your build and I am just a "kibezer" but I would raise the motor until nothing hangs below the frame rails and then lower the car until the frame rails are about 2 inches of the ground. The idea is to keep as much air as possible from going under the car and the air that does should see as much flat surface, i.e. oil pan, bell housing, cross members etc as possible. Having things like cross members hanging down in the wind only cause drag which requires hp to over come. Don't let the loading and unloading of the car from the trailer be the deciding factor on how you make the bottom of the car low and slick.

Rex
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on February 22, 2011, 12:08:50 PM
Peter, Rex, I like the idea of trimming the adapter and bellhousing flange. I had forgotten that we used to do that on roundy rounders!

Rex, I agree that sitting the engine, so that the lowest part is between the frame rails would be optimum. I don't, however, like the high center of gravity of the engine, when it sits that way. Remember, this is why I gave up the Coupe class, and went with the setback. In Comp Coupe, there will be a bellypan, so that should help some.

Maybe I'm being over cautious, having never ran on the salt. I'm trying to avoid spinning, and if I do, I want the CG as low as possible. It is entirely possible/probable, that after running this year, I will rethink this whole setup, and do as you suggest next year!

Please keep the suggestions and critiques coming, as they are very helpful!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on February 23, 2011, 09:10:39 PM
The cam blanks came today! There are no blanks available, save having custom billet ones made. I looked for two years, calling every cam maker I could find. Finally, I had Joe Paneck at Roto-Faze make two for me.

Instead of a Caddy snout, it has a BBC snout, to fit the Donovan gear drive.

A stock cam has .334 lift. We'll use this cam for .525 lift, and 280 duration
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Buickguy3 on February 23, 2011, 09:26:50 PM
  Hmmm! Wonder if thet'd be interested in doing a straight 8 Buick blank?  :cheers: :cheers:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on February 23, 2011, 09:33:08 PM
 Hmmm! Wonder if thet'd be interested in doing a straight 8 Buick blank?  :cheers: :cheers:

PM sent with Joe's contact info.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: RichFox on February 23, 2011, 09:40:33 PM
  Hmmm! Wonder if thet'd be interested in doing a straight 8 Buick blank?  :cheers: :cheers:
Joe don't care. Give him a call.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Milwaukee Midget on February 23, 2011, 10:17:21 PM
What does the other side of the head look like??
Rex
I would pass as well, gotta keep at least ONE ace up yer sleeve :-D

Well, there's clearly two routs about .525 deep.  :-D

Now if we can get a good look at the pistons, we might be able to figure it out.

Rex, Tman, I don't think I want to play poker with this guy . . . .
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on February 23, 2011, 10:45:31 PM
What does the other side of the head look like??
Rex
I would pass as well, gotta keep at least ONE ace up yer sleeve :-D

Well, there's clearly two routs about .525 deep.  :-D

Now if we can get a good look at the pistons, we might be able to figure it out.

Rex, Tman, I don't think I want to play poker with this guy . . . .


Haha! All will be revealed, just not yet...

I will show you something I'm working on for a 324 CID engine. Call it phase 2...
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Dr Goggles on February 24, 2011, 12:11:23 AM
Is 2" enough at the bellhousing?

I'm thinking a skid plate wouldn't be a bad idea......it's not unheard of to get a bit of air here and there ( :roll:)and even if all four wheels stay on the deck any bumps are exagerated by the speed.....with limited suspension that means bottoming out pretty hard, something smooth is better than an abrupt edge that might plow the salt or worse still upset the car................................

Great build by the way.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: jimmy six on February 24, 2011, 12:48:24 AM
I would definately be careful with a skid pad......ANYTHING considered "aero" in gas coupe especially in vintage could cause a problem in impounds.........Good Luck
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: desotoman on February 24, 2011, 01:33:43 AM
How small is the base circle going to be on the cam with .525 lift? What is the minor diameter of the camshaft?

Tom G.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: SPARKY on February 24, 2011, 08:36:52 AM
Guys,  It looks to me like "the price of poker" in this game is going way UP  :cheers:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: LittleLiner on February 24, 2011, 08:49:45 AM
. . . . The Flatcad that ran in the early '50's.

"The  car was the DuNah-Goldman entry from Pasadena. It had a 347" '36 Cad for power. It ran 133.130 mph in '50 and 133.729 mph in '51 at the salt. It also ran 143.31 at the lakes in '50. This car was a '28-29 roadster body with a belly pan and race car nose without a grill opening. A picture of it can be found on the ahrf.com website, key number GGC_167."

The website is download protected, but I'm trying to get a picture of the car, from Jim Miller.    . . . . .
I was able to pull a copy of the photo you mentioned.  Quality might be a bit low because of the duplicating process I had to use.  Anyway, is this the car you mentioned?   (http://i254.photobucket.com/albums/hh99/Arto_x04/Roadster203d.jpg)
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on February 24, 2011, 10:32:15 AM
What does the other side of the head look like??
Rex
I would pass as well, gotta keep at least ONE ace up yer sleeve :-D

Well, there's clearly two routs about .525 deep.  :-D

Now if we can get a good look at the pistons, we might be able to figure it out.

Rex, Tman, I don't think I want to play poker with this guy . . . .

Haha! It's not that big a secret- think modified Harley KR/Navarro heads, with popup flat tops.

Dr Goggles, Jimmy- In BVGCC we will have a bellypan, and in BVGALT, we
will have a step pan, so both will act as a 'skidplate.

Jimmy, remember, BVGC is no longer an option, with 14% setback.

Tom, I can't remember the new base circle, but the small diameter is
now 1". Stock was 1.375"

Littleliner, that's the one! :cheers:

Ok, I received the preliminary stock flow numbers from Joe Abbin. These
numbers are with stock valves, no port work, and our custom chamber
head. Next up is port work, valve guide relief, and a 1.76" exhaust
valve. we will test both a 1.94" and a 2.02" intake valve.

Dale and I were chatting, and so far, it seems that if you look at the graphs, it sure looks to be very port constricted. On both the intake and the exhaust the amount of additional CFM that it flows between
.278 and .500 drops off drastically. In effect, you can raise the valve just
about all you want and it just doesn't matter all that much. This is why
getting the valve open early and keeping it open (duration), a blower and
porting will be very big components of horsepower.

From looking at the block, doing extensive work in the bowls, short-side radius,
etc - should make a big difference. My guess is that the overall size of the
port won't be the limiting factor (up by the intake manifold), but what happens
when the ports turn and get constricted into the bowl and the overall size of
the bowl area.

While these numbers are laughable by OHV standards, they excite the hell out of me! They show 20-25% more flow than a stock Ford, according to Joe Abbins flow bench tests.

So, we're off to a very good start!

Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Tman on February 24, 2011, 02:23:45 PM
I figured the Harley heads weighed in there with the folks helping you :-D
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: desotoman on February 24, 2011, 04:03:41 PM
I figured the Harley heads weighed in there with the folks helping you :-D

I got a chuckle out of that statement. Back in the early 1980's when I was doing my Flathead project, I met Dale and he was the one that told me about the HD heads. So yes they would have that information also.

With a Flathead you can take so many different routes when designing a head, especially with a blower.

Tom G.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Tman on February 24, 2011, 04:41:23 PM
I figured the Harley heads weighed in there with the folks helping you :-D

I got a chuckle out of that statement. Back in the early 1980's when I was doing my Flathead project, I met Dale and he was the one that told me about the HD heads. So yes they would have that information also.

With a Flathead you can take so many different routes when designing a head, especially with a blower.

Tom G.

Yup, and since they were working with Abbin I made the connection :-)
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on February 24, 2011, 04:55:10 PM
I figured the Harley heads weighed in there with the folks helping you :-D

I got a chuckle out of that statement. Back in the early 1980's when I was doing my Flathead project, I met Dale and he was the one that told me about the HD heads. So yes they would have that information also.

With a Flathead you can take so many different routes when designing a head, especially with a blower.

Tom G.

Yup, and since they were working with Abbin I made the connection :-)

Haha! Nope- you just thought you did!

Joe has nothing to do with the design. I simply took everything, after it was done, to Joe for flow numbers. Since his published Ford numbers are everywhere, we could get an apple to apple comparison with the Caddy to Ford numbers.

Dale has been preaching the attributes of the Harley heads for years, so this was his idea (and Navarro's), with Chris Daniels doing the CAD work.

For the record, out of all the members, I believe only John Speer and myself have Harleys! :-D
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: desotoman on February 24, 2011, 06:01:46 PM

Dale has been preaching the attributes of the Harley heads for years, so this was his idea (and Navarro's), with Chris Daniels doing the CAD work.


No offense but to set the record straight Navarro did not have the idea for his Hi Dome heads.  I went to Navarro after reading a column in a Hot Rod Magazine that was written by none other than Bruce Crower. Bruce had written an article of how fun building a flathead Ford might be the second time around, changing up the head design. So really it was Bruce's ideas coupled with many other peoples input, the results from the flow bench, and the result was a new head.

I went to everyone who was still making Flathead heads in 1980, and only Barney was willing to try and update his heads. He built a flow bench and I ran it. After talking to many people including Dale Hays, Bruce Crower, Don Ferguson Sr. Ed Iskederian, Jerry Branch, and many more people, including getting blueprints of the harley heads, and a couple HD heads I borrowed from Dale, we came up with a design which flowed pretty good. But I did not like the way the piston shape was, which was basically a 9/16 inch pop up piston, which I had Arias put a 240 Z type relief on. The piston was way too heavy even with internal milling.

As luck would have it of the first 10 heads made in this configuration only 4 were good. I told Barney we needed to make the piston a dome with a radius and he balked saying the head machining would have to be done on an EDM machine and it would be prohibitively expensive. So one day I was looking at some old tooling and found an old hemi dome cutting tool. It happened to be the exact radius for what was needed, so I said why can't we use this. So that is how the head went from a pop up piston to a dome with a radius piston. The patterns were taken back to the pattern maker and had metal added to the area over the piston so the dome tool would work. I will leave the 4-71 manifold story for another day.

Tom G.

PS. Are you using the pop up design or the heart shaped design for a flat top piston?
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on February 24, 2011, 06:18:50 PM
Tom,

Kudos for the design, and the story!

I knew, looking at the Navarro heads that they were based on the KR head. I had NO idea how the designed transpired!

Man, you should have never told me how involved you were in that- hasn't anyone told you what a PITA I can be when I'm searching for info? Lol! :-D

Do you remember or have any of the bench flow info?

We are going with the flat top popups.

I love when stuff like this is revealed in a thread!

Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Tman on February 24, 2011, 06:37:22 PM
I just remember you mentioning Abbin on the HAMB or maybe I remember thinking about asking you guys if you had seen the Harley head info.....................not knowing what/who Dale was other than a guy that I had seen online for a long time! :cheers:

regardless of how I got there, I had my suspitions! :-D
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Milwaukee Midget on February 24, 2011, 07:05:32 PM
Staring into the crystal ball, checking out the future . . .

I like the Phase 2 head, but I'm wondering why the big bend in the bowl.  Looks like about an 85 degree turn, right at the point where you need to smooth out the flow.  If you're starting from scratch, you could straighten out the ports by cutting the intake face at an angle, along with the exhaust, and raising where the port enters and exits from the both sides.  You'll increase the radius and smooth out the flow, yes?  It's not like you're trying to match it up to an existing manifold.

My 2 cents, and worth about half that . . . :-D

Also curious about the bowls in the block - how much room you have to play with on those ports.  Any pics?
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: desotoman on February 24, 2011, 07:28:21 PM

Do you remember or have any of the bench flow info?

I love when stuff like this is revealed in a thread!



I still have all the information on the flow results. But you have to remember this was in the early 80's. We did not invest in any manometers or gauges. We did it pretty simple since our goal was to measure flow increases not actual flow.

Don't laugh OK, but here is how we did it. Barney had a large vacuum motor and variable rheostat that he built for this project. We took an old block I had that had been ported and relieved to the max, and we set it up on top of the unit. We sucked down through a cylinder in the block and sealed if off with large O Rings. Then we had plastic tubing hooked up in various spots with water in them for fluid.

One tube was taped on a piece of wood as I remember about 8 feet long. It was laid down on an old Ford Axle housing made into a stand, at about 20 or 30 degrees, with one end hooked to the machine and the other was in a tuna can filled with water to  the same height each time. This tube measured our inches of vacuum, which we started our tests at 6 inches water vacuum. The other tube was a U tube which we measured the flow from. So using modeling clay we filled the relief back in the block to make it stock, put one of his Aluminum aftermarket heads on the block, and tested it by bringing the water vacuum up to 6 inches and measuring the separation in the U tube Plastic tube. This was the base line for all of our tests to come. So the more distance we would separate the U tube the more we were flowing. We ended up reaching max port velocity, and it did not matter if the valve was in or out of the block. But you must remember this was for our setup, everyone's will vary depending on short side radius, head, etc.  

Some would ask why we put the Aftermarket heads on a block without a relief, since they would choke the transfer area more than an original head. The reason was we wanted to see all the different stages of development for both block and head, since they both make up the chamber.

I still have all my stuff, and it is 98% done. I only need some roller lifters, and Titanium valves. At the time I ceased this project no one made any roller lifters, and I was so tired of beating my head against a wall, I shelved it.


Tom G.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Milwaukee Midget on February 24, 2011, 07:38:36 PM
Tom, how can we not laugh?  That's as hysterical as it is brilliant!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on February 24, 2011, 08:01:52 PM
Tom, that's good stuff! I admit to laughing, at the mental picture of the tuna can, wood, plastic tubes, and a vacuum cleaner!

The bottom line is, though, you found the information that you needed,and it was pure genious! :cheers:

Joe Abbin, author of Blown Flathead, has bench flowed and recorded a lot of the aftermarket Ford heads in his book. Guess what. His flowbench is powered by a 6hp shop vac! No kidding-been there, seen it!

Tom, what kind of HP were you aiming for?

Staring into the crystal ball, checking out the future . . .

I like the Phase 2 head, but I'm wondering why the big bend in the bowl.  Looks like about an 85 degree turn, right at the point where you need to smooth out the flow.  If you're starting from scratch, you could straighten out the ports by cutting the intake face at an angle, along with the exhaust, and raising where the port enters and exits from the both sides.  You'll increase the radius and smooth out the flow, yes?  It's not like you're trying to match it up to an existing manifold.

My 2 cents, and worth about half that . . . :-D

Also curious about the bowls in the block - how much room you have to play with on those ports.  Any pics?

You're right on the money, on your port comments. Mike had started this design for a banger he was going to convert. We will be staightening, and enlarging the ports as much as possible. We are also looking at changing the push rod angle, to more closely match the stock Hemi angle.

I just made a deal on a pair of 270 Hemi heads, and will send one to mike. He'll convert the chamber info into a CAD file.  He'll then move the valve angles, to be able to increase valve size, and to work better with this engine.

There's a lot of work to do- the FlatCad has had 7 head bolts added, and they still need to be added to the CAD files.In addition to getting the proper porting and valve train workable, we still have to work on the water passages.

Then comes the fun part. Casting one-off items is very expensive. After we are confident we have a good, workable model to start with, we need to design this to be a machinable, two piece head.

I'm at work, and only have some pics with me. They will, however, give you an idea of the bowls in the block.

Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: desotoman on February 24, 2011, 09:05:29 PM


Tom, what kind of HP were you aiming for?



As much as possible, for the time. LOL.  I used to visit Tom Beatty and in our talks he told me he thought his old Belly Tank had around 400 HP when he had the flathead in it, and as I recall it ran 212.something with the Flathead. Tom ran Alky for fuel, with a GMC blower. I would ask him questions about cams he ran and he just said he would tell Mr. Winfield how the car ran and Mr. Winfield would grind him another cam and say try this. No spec tags, and Tom would install them as told.

I also wanted to keep the stock ports somewhat stock, what I mean by that is I did not want to alter the block, like Ron Main did on his last Flathead motor. The KISS method works best for me personally, plus one off stuff cost cubic dollars and might not work. JMO.

My aim was to be able to use stock type intakes, stock dimension cam, etc. So with stock location type ports both intake and exhaust, I was hoping for HP in the 500 - 600 HP range. I feel this was very attainable, and a computer modeling engine program confirmed what I thought. So I think I was on the right track but until I put it on a dyno, who knows. I shelved the project around 1988.

Tom G.

PS. No problem with laughing about the flow bench, the mental picture is hilarious.



Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on February 24, 2011, 09:20:06 PM


[/quote]
My aim was to be able to use stock type intakes, stock dimension cam, etc. So with stock location type ports both intake and exhaust, I was hoping for HP in the 500 - 600 HP range. I feel this was very attainable, and a computer modeling engine program confirmed what I thought. So I think I was on the right track but until I put it on a dyno, who knows. I shelved the project around 1988.

Tom G.

PS. No problem with laughing about the flow bench, the mental picture is hilarious. [/quote]



500-600 HP is a helluva flathead!

Tom, I would have to urge you to finish it! I mean, really, how many flatheads are out there making that kind of HP?

I, for one, live and breath flatheads, and I'm sure I'm not the only one wanting to hear more about it!

Hell, it sounds more interesting than my project!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Tman on February 24, 2011, 10:07:49 PM
Yes, this page of the thread has been most enlightening! :cheers:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: desotoman on February 24, 2011, 10:10:07 PM

Hell, it sounds more interesting than my project!


Sorry I did not mean to derail this thread. So back to your project build.

For your pistons did I understand that they will be a flat top pop up design? If so I will give you something to ponder. In my research years ago, I talked with Don Ferguson Sr. a lot about Flatheads. At one time he ran pistons as you are describing. He showed me a few that had holes in them and the holes were not where you would think. They blew through at the very top corner of the piston where it meets the chamber.

That is why I did not like the first Navarro heads made, and had a 240Z cut put on the pistons, which was a ramp style cut for about an inch across the transfer area. I did that so the piston could absorb the heat better. I don't know what ever happened to those heads or pistons as I sold them to someone in Oregon, after I was able to talk Barney into changing the head to a dome radius.

Just something to think about.

Tom G.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on February 25, 2011, 12:03:59 AM
Tom, I wasn't be sarcastic in the least- I really would like to hear more about your build! As there are not many flathead builds on the board, seems to me this thread is as good as any. :cheers:

I'm going to run coated pistons, but even this may not help the damage you describe.

Do you know or have a theory as to the cause?

Was this hole always on the edge towards the valves, or in random placed?

I assume the domed pistons solved this problem, since there was no 'edge'?

How did the domed pistons and the flat top pistons compare flow wise?

Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: desotoman on February 25, 2011, 01:11:21 AM

Tom, I wasn't be sarcastic in the least


I know you weren't, but this is your build and it's about a Caddy which I think is cool.

Back to the pistons, we did lose a little flow, and static compression, but not much and since the motor was supercharger I was not concerned about the flow, or compression, as much as the reliability.

The pistons I saw had the holes in the same spot, which was toward the valves or facing the transfer area. I don't remember if they were coated or not. The radius at the top was very small maybe 1/16 of an inch, if that.

As I said before just something to discuss with the other guys and get their view on the subject, as this was years ago and things are constantly changing so you might not have the same problem. 

Tom G.

Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on February 25, 2011, 11:01:07 AM
Tom, thanks for the stories, and info. I have passed your concerns along to Dale. seems Dales idea, at this point at least, is to "have it chamfered like the Baron Popup head has".

Hopefully, this will solve the problem!

Staring into the crystal ball, checking out the future . . .

I like the Phase 2 head, but I'm wondering why the big bend in the bowl.  Looks like about an 85 degree turn, right at the point where you need to smooth out the flow.  If you're starting from scratch, you could straighten out the ports by cutting the intake face at an angle, along with the exhaust, and raising where the port enters and exits from the both sides.  You'll increase the radius and smooth out the flow, yes?  It's not like you're trying to match it up to an existing manifold.

My 2 cents, and worth about half that . . . :-D

Also curious about the bowls in the block - how much room you have to play with on those ports.  Any pics?


Ok, I found a better pic of the valve bowls. As you can see, there is planty of room to move the pushrods around some.

This is also a mockup pic, with a 1.75" exhaust, and a 2.05" intake. These Caddies have lots of room for valves!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Milwaukee Midget on February 25, 2011, 08:37:26 PM
Thanks for that.  Looks like plenty of metal for shaping.

So the firing order is 1-8-7-3-6-5-4-2, and you have shared 3-5 and 4-6 exhaust.  At least you don't have a cylinder robbing situation on the intake side, but have you thought about how to address the overlap on the 3-5 and 4-6 exhaust? 

I guess it's essentially the same as a flathead Ford (180 degrees), but it's a very different port shape and location.

This one just keeps getting more interesting.  :cheers:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on February 25, 2011, 10:02:42 PM
Good question!

For the 3-5 and 4-6 exhaust, we're going to spilt the ports. I've asked for, and received permission to do this.

I have no artistic ability, bit I think I can muddle through this! Lol! The first pic shows the 4-6 port. The white lines are where cuts will be made to remove the heat riser. the red line indicated where the port divider will go.

The second pic shows the 1/2 plate that will span the intake and exhaust ports.It also shows the split port. Again, I asked for and received permission to install this plate, to keep from splitting the engine. The top center is not all that strong of design,as you can see in pic 3.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Milwaukee Midget on February 25, 2011, 11:20:37 PM
Fascinating.  I have a similar situation with the Midget (both intakes - shared ports - and exhaust - shared 2-3), which I can only remedy with different LCA's for the 1-4 and 2-3.  I'm required to keep stock port arrangements in GT, and I simply don't have enough material in the head to try something like this without restricting flow.

This block clearly gives you enough material to work with, and the extra port height that the modified heat riser gives you may actually help direct flow out of the port.  

Very crafty.  :cheers:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on February 26, 2011, 09:49:03 AM
Thanks. I don't know about crafty, but I think it will work!

Ok, I read you were solving your shared port situation with a “scatter pattern” cam-I get that part.

But above, you mention the only remedy being different LCA's. What is LCA? Is that the same as LSA?
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Peter Jack on February 26, 2011, 10:10:27 AM
Lobe Center Angles??? :?

Pete
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Milwaukee Midget on February 26, 2011, 11:29:48 AM
Lobe Center Angle.  Based on the cam degrees, not crank.  Lift and duration being equal, by tightening the outside pair LCA's in my application, and widening the inside pair, you effectively minimize the time that 1&2, and 3&4 intake valves are open at the same time, which minimizes cylinder robbing.

It's a sad compromise compared to individual ports.

Seeing as you are starting out with a blank cam, I was thinking that a similar compromise could be made on the exhaust side of your engine to minimize back pressure and pumping losses when the 5 and 6 open, but the solution you came up with makes a lot more sense.

Good article on LCA by David Vizard - the guy who co-designed my cam.

http://www.stockcarracing.com/techarticles/scrp_0612_lobe_centerline_angles/index.html
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on March 01, 2011, 06:44:38 AM
Thanks for the link- That's a very informative piece!

Should have progress pics soon, but in the meantime, Mike and I have been discussing the OHV conversion.

This is just a rough draft, to get port design, and port paths. We're trying to get a path roughed in, that misses all the head bolts, and will flow good. The draft still needs a lot of 'polishing', but it's a decent draft.

Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Rex Schimmer on March 01, 2011, 09:30:35 AM
It looks like you are trying to miss the head bolts at secure the original head over the valve area, ever thought of just making a separate plate to cover this area and then making your new head with a notch to go over this plate or make the head narrower but this would allow you to use just the head bolts that are around the cylinder, which is what every other head does and not have to contend with the 8 bolts in the old valve area. Sure would make installation and removal of the heads easier.

Another thought would be to add a 1/2 to 3/4 plates over the entire top of the of each cylinder bank, secure this plate to the block with counter sunk or counter bored bolts that match the existing head bolt pattern then bore through the plate and install sleeves that include the plate thickness, then you can establish a new head bolt pattern into that plate which can be what ever you want. This would raise the deck height by what ever the plate thickness is but this looks like a "labor of love" project anyway so it is just a few more hours on the mill.

Again just "kibizing"!

Rex

Rex
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on March 01, 2011, 04:32:18 PM

 
Rex, why do you always have to rain on my parade? Lol!
 
That's a great idea. I guess I was so blinded, thinking that we had to make this work with the existing bolt pattern, that I didn't consider anything else. I really like the second idea, of plating over the entire cylinder bank.
 
This would allow us to design the head for optimum performance, not optimum for what we have to work with. I passed this idea on to Mike, and we will discuss it further tonight or tomorrow.
 
In the mean time, please keep "kibizing"! It helps me immensely!
 :cheers:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Peter Jack on March 01, 2011, 07:21:41 PM
It also allows for a longer rod which many feel is an advantage. (I agree.)

Pete
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: desotoman on March 01, 2011, 08:11:40 PM

Another thought would be to add a 1/2 to 3/4 plates over the entire top of the of each cylinder bank, secure this plate to the block with counter sunk or counter bored bolts that match the existing head bolt pattern then bore through the plate and install sleeves that include the plate thickness, then you can establish a new head bolt pattern into that plate which can be what ever you want. This would raise the deck height by what ever the plate thickness is but this looks like a "labor of love" project anyway so it is just a few more hours on the mill.

Again just "kibizing"!

Rex


Isn't there a rule against doing this type of thing? Something to the effect of deck height has to be within .150 of original deck height and original material. I could be wrong but I remember something to that effect in the rule book. Might want to check the intent of this rule.

Tom G.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Milwaukee Midget on March 01, 2011, 08:27:01 PM

Another thought would be to add a 1/2 to 3/4 plates over the entire top of the of each cylinder bank, secure this plate to the block with counter sunk or counter bored bolts that match the existing head bolt pattern then bore through the plate and install sleeves that include the plate thickness, then you can establish a new head bolt pattern into that plate which can be what ever you want. This would raise the deck height by what ever the plate thickness is but this looks like a "labor of love" project anyway so it is just a few more hours on the mill.

Again just "kibizing"!

Rex


Isn't there a rule against doing this type of thing? Something to the effect of deck height has to be within .150 of original deck height and original material. I could be wrong but I remember something to that effect in the rule book. Might want to check the intent of this rule.

Tom G.

I think it's just a two piece head with integral sleeves.   :wink:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on March 01, 2011, 09:03:45 PM

Another thought would be to add a 1/2 to 3/4 plates over the entire top of the of each cylinder bank, secure this plate to the block with counter sunk or counter bored bolts that match the existing head bolt pattern then bore through the plate and install sleeves that include the plate thickness, then you can establish a new head bolt pattern into that plate which can be what ever you want. This would raise the deck height by what ever the plate thickness is but this looks like a "labor of love" project anyway so it is just a few more hours on the mill.

Again just "kibizing"!

Rex


Isn't there a rule against doing this type of thing? Something to the effect of deck height has to be within .150 of original deck height and original material. I could be wrong but I remember something to that effect in the rule book. Might want to check the intent of this rule.

Tom G.


Hmmm, it appears that I 'conveniently' forgot that one little detail.

Think they'll buy this line- "I think it's just a two piece head with integral sleeves." Lol!

I'm going to submit a request tomorrow, and see what the ruling is. If we can't, we can't. If that's the case, we'll continue modifying the version I've posted.

Thanks for pointing that out!

Sam Woodard got started on the roll cage, and sent me these pics tonight. You may remember, Sam did the cage for Hooley's Stude.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Peter Jack on March 01, 2011, 09:23:11 PM
Flattie, PM sent.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Milwaukee Midget on March 01, 2011, 10:49:39 PM
Well, why couldn't you just call it a cylinder head adapter plate?  That's essentially what it is.  It's bolted onto the block, so you haven't modified the block beyond what they've already okayed - in fact, the process could be reversed, because you haven't altered the block or deck height.  And there's no rule that says you can't sleeve a block in such a way that the sleeves extend past the deck.

As usual, I think Rex might actually be on to something.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on March 01, 2011, 10:57:56 PM
Haha! I think you guys are on to something!

...Or are you on something? Lol! :-D

I just sent a request off, and we'll see how it turns out. Here are the basics:

 
Can I bolt a 5/8 plate, with the bores, water passages, pushrod holes, etc.,to the deck, then bolt the heads to the plate?
 
Ideally, I'd like to sleeve the cylinders through the plate.
 
If this is not allowed, can I use the plate as part of a two-piece head? The void left were the new plate is cut out over the cylinder bore would be the bottom part of the combustion chamber, with no, or very little, chamber in the head, just the valves.

I'll keep you updated.


In the mean time, Dale, (BoredAndStroked here on the board), just finished our crank girdle design.

This is a thick piece of steel - 1.25" - must be plasma-cut out of plate, Blanchard ground on both sides, sides profiled on the mill on all cut surfaces and then all the holes done with a CNC milling machine. It is a lot of work - and we need it to "contain the beast" called horsepower  :-D

Here is the 3D model that Dale  just finished for the girdle - have to wait to validate the dimensions on a second block I just shipped to him.

I'll post the main caps and the final girdle/cap assembly later on this week.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Milwaukee Midget on March 01, 2011, 11:37:44 PM
Haha! I think you guys are on to something!

...Or are you on something? Lol! :-D


You're the one who lives in Colorado, pal.  I ain't got no prescription. :cry:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: SPARKY on March 01, 2011, 11:40:52 PM
just don't drive down I-10 in Tx with that "script"  :-D  :cry:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Milwaukee Midget on March 01, 2011, 11:59:09 PM
just don't drive down I-10 in Tx with that "script"  :-D  :cry:

http://www.rollingstone.com/music/news/willie-nelson-arrested-for-pot-possession-20101127
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: SPARKY on March 02, 2011, 09:44:45 AM
There have been numerous folks with legal scrips from other states busted in TX :-o
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Tman on March 02, 2011, 11:19:50 AM
And for 6 degrees, Willie Nleson tickets for Rapid City go on sale next Monday :cheers:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Stan Back on March 02, 2011, 11:32:09 AM
2.A.1 --

". . . crankshaft centerline to original deck height measurement shall be within .150" of original design;  original deck material and thickness shall be maintained to within .150" of original design."

Looks like there may be .300 combined to play with.  How about adapting already designed heads to the block.  Like Donovans or something.  What's the bore spacing match up to?

Stan
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Stan Back on March 02, 2011, 11:35:18 AM
By the way, Buddy, passed your budget figure yet?

Stan
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on March 02, 2011, 02:01:18 PM
Bore spacing doesn't really match up with anything. I may cut some Hemi 241 heads in half, the re-weld at right spacing.

I'll probably just have to work and design around what I have. instead of the plate.



By the way, Buddy, passed your budget figure yet?

Stan

Hahahaha!

I HAD a budget. Had to sell the '58 Del Ray to cover the overages. Now I'm selling the Graham Paige to finish the project.

All my wife keeps telling me is " You're NOT selling the Harley!"
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: maguromic on March 02, 2011, 02:22:51 PM
What about the V4 guys running plates with Chevy and Subaru heads and are those engines illegal now? The way I read  the rule was you couldn't change the stock height by more than .150 but with a bolt on plate your not changing the height of the "stock block". Its entirely a different part.  Tony
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on March 02, 2011, 03:01:17 PM
I think the 3-piece head design is the one that will work.

If we use the space over the bore, that's created by the adaptor plate, as the bottom .625 of the cylinder chamber, we wouldn't have to change the deck height. We could use a pop-up piston, put virtually just the the top of the chamber and valves in the ' middle' section of the heads, and maybe get this through the committee.

The way I read the rules, this is all allowable. :-D

Biggest downside I can see, is 2 head gaskets per side.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Stan Back on March 02, 2011, 03:30:07 PM
"I HAD a budget. Had to sell the '58 Del Ray to cover the overages. Now I'm selling the Graham Paige to finish the project."

I thought you might have underestimated.  I've never done that.

When I built the 28 Mercury 20 years ago, I decided to keep each and every receipt including the short trips to the hardware store for just a few nuts and bolts, etc.  After a few months, the total was becoming way too intimidating, so I scrapped that idea.

Stan
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: fredvance on March 02, 2011, 04:16:27 PM
When I started my project, about 4 years ago, I kept the receipts for about six or eight months, I realized then that I didnt want to know how much I spent. Also if I didn't keep them my wife couldn't find them. :evil:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Tman on March 02, 2011, 04:29:51 PM
"I HAD a budget. Had to sell the '58 Del Ray to cover the overages. Now I'm selling the Graham Paige to finish the project."

I thought you might have underestimated.  I've never done that.

When I built the 28 Mercury 20 years ago, I decided to keep each and every receipt including the short trips to the hardware store for just a few nuts and bolts, etc.  After a few months, the total was becoming way too intimidating, so I scrapped that idea.

Stan

Yup, adds up. Since I ran the front end of a rodshop I HAD to keep track of my Touring parts. Small stuff alone for final assembly ran $3500
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Dr Goggles on March 02, 2011, 05:42:20 PM
When I started my project, about 4 years ago, I kept the receipts for about six or eight months, I realized then that I didnt want to know how much I spent. Also if I didn't keep them my wife couldn't find them. :evil:
"I HAD a budget. Had to sell the '58 Del Ray to cover the overages. Now I'm selling the Graham Paige to finish the project."

I thought you might have underestimated.  I've never done that.

When I built the 28 Mercury 20 years ago, I decided to keep each and every receipt including the short trips to the hardware store for just a few nuts and bolts, etc.  After a few months, the total was becoming way too intimidating, so I scrapped that idea.

Stan

oooooh nah, receipts are a bad idea, they're the sort of thing that could get a man hung......admit nothing ,deny everything, and wear gloves. Anything that turns up in the mail is a warranty repair..... everything you have that ain't being used is worth AT LEAST three times what you paid for it......
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Milwaukee Midget on March 02, 2011, 10:17:50 PM

I HAD a budget. Had to sell the '58 Del Ray to cover the overages. Now I'm selling the Graham Paige to finish the project.

As long as there's food in the fridge, and gas in the tank, you're under budget.

oooooh nah, receipts are a bad idea, they're the sort of thing that could get a man hung......admit nothing ,deny everything, and wear gloves. Anything that turns up in the mail is a warranty repair..... everything you have that ain't being used is worth AT LEAST three times what you paid for it......

Rule 3 of "The Happy Marriage" - You've been studying, Doc.  The exam is right around the coroner, . . . er . . . I mean corner.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Tman on March 02, 2011, 10:26:41 PM
When I started my project, about 4 years ago, I kept the receipts for about six or eight months, I realized then that I didnt want to know how much I spent. Also if I didn't keep them my wife couldn't find them. :evil:
"I HAD a budget. Had to sell the '58 Del Ray to cover the overages. Now I'm selling the Graham Paige to finish the project."

I thought you might have underestimated.  I've never done that.

When I built the 28 Mercury 20 years ago, I decided to keep each and every receipt including the short trips to the hardware store for just a few nuts and bolts, etc.  After a few months, the total was becoming way too intimidating, so I scrapped that idea.

Stan

oooooh nah, receipts are a bad idea, they're the sort of thing that could get a man hung......admit nothing ,deny everything, and wear gloves. Anything that turns up in the mail is a warranty repair..... everything you have that ain't being used is worth AT LEAST three times what you paid for it......

Oh nop honey, I have had that tool for years! :wink:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on March 03, 2011, 12:48:59 AM
You guys crack me up! :-D

Sam made some more progress on the cage today.

Do you think I can get that wooden seat brace past tech? Sam said he was having a hard time getting the seat mounting tabs welded to it. He's going down tomorrow to get different rod.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on March 03, 2011, 01:01:35 AM


Ok guys, here's a quick sketch of the three piece heads.

The bottom piece is both an adaptor, and the bottom part of the cylinder head chamber.
The second piece has the chamber top and valves, and the top piece has the rocker assembly.

The sketch doesn't have the different bolt patterns that will bolt them to the bottom piece yet, but we'll update it later.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on March 03, 2011, 08:23:14 PM
Sam sent me the days work on the cage. I can't wait to get back down there next week!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Tman on March 03, 2011, 09:30:30 PM
You know after seeing Sam at teh HAMB Drags all these years I never knew he built Hooleys cage.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Milwaukee Midget on March 03, 2011, 11:58:11 PM
I'm surprised at the speed at which the chassis is coming together.  Nice work, and timely.
Keep going - we're all eyes and ears.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: maguromic on March 04, 2011, 12:53:59 AM
Buddy, I like your head design.  Since you guys are doing a three piece head have you though about doing a three valve head or sinking the chamber in the bore  to get a short stroke and turn the engine like some others have done? Tony
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on March 04, 2011, 09:24:36 AM
Thanks for the kind words, guys! I know some of what I post is probably boring, but I'm still so excited, that even the small stuff thrills me!

We have discussed 3 valves, as it was brought up in a thread on another board. I don't plan on even firing an engine with these heads until after this season is over this year. This will give us plenty of time to get these heads right. One we have good, usable heads, and flow bench numbers, we'll try several different designs.

I hadn't thought of sinking the chamber in the bore, but will bring it up with the team members. I don't feel comfortable spinning the engine above the 6000-6500 rpm range, and we'll do that/ try that, with the long rods (8.75"), and a long stroke(4.625"). This idea may prove to be beneficial- Thanks!


update:

Well, this whole approval process is not going well for me!

The 3-piece head is not an acceptable design, because even though the bottom piece contains part of the chamber, it still acts as an adaptor plate.

So, I have to make a decision here. I can either work around the existing bolt pattern, and run XXO, or make the 3-piece and run time only.

More when I think on this some.


Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: dw230 on March 04, 2011, 11:55:40 AM
"... run time only."

For the time and resources invested in a project like this I wouldn't consider the TO option. No benefit to that.

DW
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: maguromic on March 04, 2011, 12:58:14 PM
Dan, and others in tech, What about the V4 guys running plates on their blocks?  Are these now illegal?  Tony
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on March 04, 2011, 02:10:46 PM
Tony, it's legal in V4. The answer I received was both informative, and helpful. We will continue to work on a design that will accomplish our goal, and be legal.

Here is the reply I received:



The Vintage Engine Committee has previously found the use of a plate to adapt a cylinder head is not an acceptable modification, except in V4.  The Committee felt they did not want to stifle innovation, so any 2.A.1 compliant specialty head may be used but must bolt directly to the block using the original bolt/stud holes.  The use of larger and additional head bolts/studs, as you recently requested and was approved, would continue to be acceptable. 


It sounds like you have two issues that you are dealing with; providing a combustion chamber and attaching the cylinder head.  One method to create a combustion chamber when one isn't located in the cylinder head that has been used in the past is to lower the piston in the cylinder.  Another method that has also been used in the past is to weld a plate of similar material to the head thus making the plate an integral part of the head and retaining the original head bolt location. 


A Specialty or after market head may be modified to use the original head bolt pattern in the block by welding up, and adding, head bolt holes.  This is more easily done if the head in question is aluminum, but it can be done with cast iron as well.


Thank you for your interest in the Vintage Engine Classes.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: dw230 on March 04, 2011, 05:08:34 PM
Tony,

As stated before, I no longer respond to vintage engine questions(see salt Cat).

Buddy has found the newly established Vintage Engine Committee and properly funnels his questions there.

See your 2011 rulebook, section 16.

DW
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: maguromic on March 04, 2011, 06:38:01 PM
Dan, I know what you said earlier, but just looking for an  opinion as I have no dog in this fight.  It just seems unfair that a vintage V4 can run a plate but the rest of the vintage engines cant.

Buddy, Its not that hard to do a three valves on rockers and to put the chamber in the bore with a three piece head.  I designed both a 4-valve and 3-valve head with rockers for the GMC and the three valve flowed in the mid 400.  The idea for putting the chamber down in the bore came about because of in vintage you cant move the crank up in the block and cut the blocks down 1-2 inches anymore.  Sorry for digressing from your build thread.  Tony

As a friend of mine in Langley says "the watchers are being watched".  :-o
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on March 04, 2011, 08:34:11 PM
Tony, your comments were not digressing from the build thread at all! I'm new at this, and appreciate the input.

Any chance you could show pics of the chambers in the bore. either here or by email?

Flow in the mid 400's would REALLY wake this baby up! :evil:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: maguromic on March 04, 2011, 11:25:37 PM
Buddy, Here is a teaser, I will send you an email with the rest. The other pictures are of a three piece head that my friend Kevin built to make a Cadillac V12 a while back.  Its an overhead cam and is much more complicated than the  rocker arm head, but it shows that it can be done. Tony

3-valve
(http://i273.photobucket.com/albums/jj236/maguromic/3_valve.jpg)
3-piece head
(http://i273.photobucket.com/albums/jj236/maguromic/CadV-12c.jpg)
(http://i273.photobucket.com/albums/jj236/maguromic/CadV-12b.jpg)
(http://i273.photobucket.com/albums/jj236/maguromic/CadV-12a.jpg)
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: desotoman on March 04, 2011, 11:35:07 PM
Tony,

That CNC head looks way expensive. If you had to go out and pay for the R&D and Machining how much would that cost?

Tom G.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: maguromic on March 05, 2011, 12:44:30 AM
Tom, I really don’t know what it would cost if someone had to pay to get it done. The big cost is in the time it takes drawing it and converting it to machine language, the R&D part is not that bad.  What we did was use an existing port and chamber configurations and modify them.  The NASCAR and IRL guys have it down to a science and have done all the hard work.   All the stuff I did was use the IRL Aurora ports and modify them for my use.  Some of the best advice I received was from Paul Vandeley (sp) (I believe he was responsible for the Pontiac 4-valve of the 80’s) who suggested that I use a block of carbon and start carving a single cylinder and flow it before you do the rest. It’s a messy job, but fun.

This is the last IRL Aurora intake port that was developed before Comptech shut the IRL program down.  If I add all the hours up and pay myself it would workout to about 5 cents per hour. Tom, I don't want to take up Buddy's build diary talking about the heads, PM your email and we can chat.  Tony

(http://i273.photobucket.com/albums/jj236/maguromic/AuroraINletPort.jpg)
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: SPARKY on March 05, 2011, 08:46:12 AM
Guys if you take this private how in the world are we "unwashed" out here in the hinterlands supposed to become "enlightened"????????? :-P
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on March 05, 2011, 08:55:18 AM
I agree!

A build thread should include the trials and tribulations of the build, as well as the successes.

As such, it should also include the research and schooling.



In short, please post it! :-D


Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: RichFox on March 05, 2011, 11:51:31 AM
Yes, Please. I have been trying to grasp some slight understanding of how you get from pictures to parts lately. And now I see these very pretty heads. For s V12 Cad? That got some neurons flashing.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: SPARKY on March 05, 2011, 02:47:43 PM
 :cheers: lol
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: maguromic on March 06, 2011, 02:16:03 PM
Sparky, I did not want take Buddy's build thread up with my head ideas and your blue hats speaks volumes already.

Rich, I didn't build or design the heads I posted.  They were built by a friend of mine for a V12 Cadillac in his garage and unfortunately they are not legal for vintage being over head cam.  All the drawings that we have done have been done in Solid Works and then converted for the CNC.  Tony
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Rex Schimmer on March 06, 2011, 03:06:54 PM
Tony,
The Cad V12 with your friends heads would not be legal for the XXO class?

Rex
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Milwaukee Midget on March 06, 2011, 03:15:47 PM
Legal, shmegal - That's a BEAUTIFUL looking piece of machine work.  :cheers:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: RichFox on March 06, 2011, 04:44:02 PM
Overhead cam specialty heads are not legal in XXO. Page 16 2.A.1  7th paragraph 2010 rule book
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on March 08, 2011, 08:49:43 PM
Sam's doing a great job on the cage...
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on March 09, 2011, 10:09:51 AM
Ok, were going back to a two piece head, using existing bolt holes in the block. We'll be adding 7 additional head bolts.


This rocker assemble is based on the Hemi style head, and current location of where the pushrods would come through. The intake rockers are awfully short, and we may move the pushrod path.


This mockup is just an initial drawing. The rockers are 1:1, and will be changed.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Tman on March 09, 2011, 02:56:35 PM
You guys sure have some fancy computin mosheens. We have to work to keep a #2 Ticonderoga sharp!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on March 09, 2011, 04:28:49 PM
HaHa! Mike, Dale, and Chris can do this stuff, but not me- I struggle with a stick man!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Geo on March 09, 2011, 06:19:57 PM
Sam's cage is looking great!  All the people on this are top notch.  Looking forward to more!  :cheers:

Geo
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on March 10, 2011, 09:00:48 PM
I agree with you, and I've been blessed in that aspect! The people involved are all very good, very dedicated, and a fun bunch to work with! :cheers:


Sam's about done on the cage, and it's looking great! He still needs to mount the seat. The gent in the pic is 6'2", and 270 lbs, to give you an idea of space.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on March 10, 2011, 09:01:50 PM
a couple  more....
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Peter Jack on March 10, 2011, 09:37:24 PM
Looks really good Flattie. Are you going to modify the seat to give the required helmet side support or are you going to build it into the cage?

Pete
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: interested bystander on March 10, 2011, 10:09:40 PM
Rollbar gussets pics should be put in rulebook as textbook case.

 Great job!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on March 10, 2011, 11:13:07 PM
Interested Bystander, I agree- Sam does outstanding work!

Looks really good Flattie. Are you going to modify the seat to give the required helmet side support or are you going to build it into the cage?

Pete

Pete, the seat is a Kirkey, and we'll go with a Kirkey Head and Shoulder restraint kit.

Sold the Graham Paige today, for funding, so the build will kick in high gear now!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: dw230 on March 11, 2011, 10:42:41 AM
Buddy,

If I send you my '29 roadster can you sell it? You have a knack for moving rolling stock that I am unable to duplicate.

DW
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on March 11, 2011, 10:48:59 AM
Absolutely! :-D

You picky about where it goes? The Graham Paige is going to Switzerland :cheers:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: GH on March 11, 2011, 11:02:58 AM
Buddy, could you sell my car also????
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on March 11, 2011, 11:40:34 AM
I could sure try!

I'm still trying to convince my wife the 'she' needs your car! No luck so far though!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: dw230 on March 11, 2011, 11:46:47 AM
Buddy,

Send it where ever it goes. I've been waiting for those European dollars.

DW
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on March 12, 2011, 04:21:20 PM
Ok, A couple of questions;

I've recently been told that the mechanical injection system works better if fed from a tank mounted higher than the fuel pump. I've been advised to mount a small tank in the engine bay, and feed it from the main tank with an electric pump. The mechanical pump would then feed the injection system from this small tank. Anyone know anything about this?

If so, where can I get a small tank like this?

I'm running a 'chiller' type intercooler. I'll have ice water circulating through the chiller. How available is ice, and how practicle is this?

Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Rex Schimmer on March 12, 2011, 05:03:23 PM
Biuddy,
Pumps like to make pressure, they do not like to suck, (sounds like my wife, in more ways than one!) so any help on the inlet side for the pump helps the pump work better. These include, large inlet lines, the bigger the better, and a little positive pressure on the inlet, which is usually done by having the pump lower than the fuel level. If you do a separate tank for the injector pump you will need to locate it close to the injector pump,  and you will need to have a line that goes from someplace close to the top of the tank back to the main fuel tank as the electric fuel pump(s) supplying the injector pump tank should be at least 50% larger in volume than the injector pump which means that there will be constant flow of fuel from the injector tank back to the main tank. The injector tank will also need some sort of breather to prevent over pressure in the tank and also provide atmospheric pressure to push the fuel to the injector pump. I have always thought the best tank design is a tall cylindrical shape with the fuel pump inlet at the bottom, I would also suggest a baffle across the inside of this tank to prevent any possible swirling of the fuel. You may also consider connecting the injection system return line to this tank which will help keep it full and reduce the amount of plumbing back to the main tank. If you do run the injection return line back to the main tank, do not combine it with the return line from the injector pump tank.

A thought on the line size for the pump inlet. If the pump has a -6 or -8 inlet connection do not assume then that the line size should match that size. Buy a step up adapter from the -6 or -8 to at least a -12 line and drill out the fitting as large as you can. Even with the inlet port acting as an orifice it can be shown that the increase in line size reduces the pressure drop through that line substantially.

I would think that you would have someone fab the tank for you as you will probably mount it in front of the engine. Actually with the set up you have why don't you just make a 5-10 gallon tank to mount in the front of the engine and then skip all of the electric fuel pump hassle altogether. If you look at some  cars that run big engine set back, link yours, you will see many of them have both the fuel tank and the water tank mounted up front to both help the water pump and the fuel pump.

Ice is not a problem at the salt, last year there were two semis parked on the salt with ice.



Rex
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: RichFox on March 12, 2011, 06:34:48 PM
My deal on the tank was to buy a piece of 4 in square 6061 tube. Cut to length and make plates to weld over the ends. Drill and tap for two Holley float bowls. Weld in AN fittings for in and out lines. In from the tank and returns. Out to the injector pump. Weld in mounts. Hook up the electric pump to the inlets on the float bowls as though they were on carbs. Run it.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on March 12, 2011, 06:46:39 PM
Rex, thanks! I may have room to make this work- I'll check it out Tuesday when I pick the car up from Sam.

Rich, I know I have room for your setup. Do you have any pics of this?
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on March 13, 2011, 12:29:00 AM
I want to start on the chiller tank this week.

How big of tank is needed? I assume there is some sort of screen, or filter, necessary to keep the ice from entering the pump. I've googled, but can't find very much info on this.

Can some one enlighten me, please?
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: RichFox on March 13, 2011, 01:27:12 AM
No pics. Wouldn't the chiller tank hold ice water that cooled the water pumped in a sealed system to the intercooler and back? Mine had kind of a raditior in it simular to the one in the intercooler. The ice water stayed in the tank.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Skip Pipes on March 13, 2011, 03:17:26 AM
Hi Buddy,

Now that you have my Chiller you can do what I’m doing with the turbo, water/air intercooler (It’s the same a concept as the chiller).

Here’s the tank I built for my new setup. It holds 13 gal and I’m running a “Rule” brand, 2000 GPH bilge pump in the bottom. It’s the same concept as my radiator tank, just with a much larger pump. The Rule pump has a cage on the bottom that allows water in, but won’t clog with ice chips.
 
You have my Stewart pump, so you don’t need an internal pump. There are some good threads on intercooler tanks "here" and they suggest a slotted pickup positioned near the bottom of the tank, rather than just a hole in the bottom of the tank as an outlet. The slot lets water in and is less prone to clogging from ice chips.

Make sure you put a large enough hole in the top to make it easier to get the ice in the tank. I was going to use a fuel cell cap, but I'm going to a larger marine hatch/deck plate.

Chiseled Performance has some good examples of intercooler tanks. They show drag racing tanks, but you’ll want one substantially larger, say 15 gal or larger.
http://www.chiseledperformance.net/watertanks.htm

Skip Pipes
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: RichFox on March 13, 2011, 09:34:50 AM
I have a tank that I will take a picture of later when the sun comes up.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: GH on March 13, 2011, 09:58:19 AM
Buddy, I made a surge tank and mounted a carb float chamber on it. I had a 20 gal. tank in the trunk with a Holley pump that pumped the fuel up to the surge tank and the carb float held it at a decent level. The return line went to the surge tank. I ran this set-up in my Willys and the Stude.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on March 13, 2011, 12:17:58 PM

Skip, since I have your chiller, and pump, doesn't it then stand to reason I should have your tank?! Lol! Thanks Skip, they are very nice! :cheers:

Thanks guys!

I have a clearer understanding of what's needed now, so I'll get started on the fuel and chiller tanks.

I'm the morning, I'm headed down to pick the car up from Sam. I can't wait to see this cage, as Sam's work looks first class!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Skip Pipes on March 13, 2011, 05:58:40 PM
My tank will only fit if you cut off the windshield and roof, then pull the fenders and running boards.

Skip
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on March 15, 2011, 07:54:43 PM
I picked the car up from Sam last night.

All I can say is WOW! The cage looks better in person than in the pics!

Sam showed me some in car videos of Hooley's record setting runs- man, that was cool!

We bs'd for a couple of hours before I left, and I really enjoyed myself .Thanks again Sam!

Hit Sam up if you need a cage, frame, whole car built, etc.- You won't be sorry!


BoredandStroked completed the initial designs for the main caps - combined them with the girdle plate to make a 'girdle assembly'.Don has the preliminary drawings and is cranking away on getting the girdle plate and the main caps started.

Anyway, here are a couple pictures of the SolidWorks girdle assembly:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on March 19, 2011, 09:45:56 PM
BoredandStroked has been busy designing the rear main seal. Here is what he posted on the other build thread:

Been working on the design of a rear 'seal plate'. The challenge is that we're completely changing the rear main setup -- moving the crankshaft thrust from the middle bearing to the rear (like a BBC). We're running BBC main bearings as well. This meant that I needed to come up with a good way to seal the rear main - something that we could retrofit to the block and the custom crank.

Here is what we decided to do:

1) The crankshaft has the large Ford FE rear flange - but it is wider/thicker than stock Ford (about .850). Also, instead of the 'notch' that a FE flange has, I removed the notch and designed the outer surface to be the sealing surface for a big one-piece seal. The seal is a special Cummins Diesel seal. I reduced the FE flange ID from 5.120 to 5.118 to match the seal.

2) Then I needed to come up with a special two-piece seal plate design. There is a .187 (3/16) thick steel plate that is installed AFTER the crankshaft and it bolts to the back of the newly designed main-bearing cap. This plate will have a thin gasket behind it to seal against the back of the block, back of the main cap, etc.. Then, there is an aluminum seal plate that is about .700 thick that has a machined recess to hold the one-piece seal.

3) The seal plate is slipped over the crankshaft flange and then it bolts to the .187 steel block seal plate as well as the main bearing cap and the 1.25 girdle plate.

4) I made sure that I have a .375 groove (oil drain trough) in the main bearing cap that passes through to the inside-bottom of the rear seal plate. This is to funnel the oil away from the rear main seal and the crankshaft oil slinger.

5) It was king of fun thinking through all aspects of the design -- hopefully I've covered all the bases and this will work. Guess we'll find out!

So, now we just need to get the finished product back from Kevin and Don!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on March 22, 2011, 11:02:28 PM
We received the model of the crank back from Crower, and Dale used it to check clearances and fitment on the girdle, bearings,  and rear main seal. This is with BBC main and rod bearings.

I know some of you guys prefer the old school way of 'just whittle it', but it sure is nice to know everything is perfect before whittling it!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: RichFox on March 23, 2011, 03:35:23 AM
I don't think it's a matter of preference. I think it's a matter of old dogs and new tricks.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Richard 2 on March 23, 2011, 10:18:03 AM
We received the model of the crank back from Crower, and Dale used it to check clearances and fitment on the girdle, bearings,  and rear main seal. This is with BBC main and rod bearings.

I know some of you guys prefer the old school way of 'just whittle it', but it sure is nice to know everything is perfect before whittling it!
38 when you say Crower sent you a model crank. Do you mean a cad model that can be installed in your Cad drawings. I so WOW!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on March 23, 2011, 08:54:11 PM
We received the model of the crank back from Crower, and Dale used it to check clearances and fitment on the girdle, bearings,  and rear main seal. This is with BBC main and rod bearings.

I know some of you guys prefer the old school way of 'just whittle it', but it sure is nice to know everything is perfect before whittling it!
38 when you say Crower sent you a model crank. Do you mean a cad model that can be installed in your Cad drawings. I so WOW!

That's correct. Like us, Crower does a SolidWorks model, before they whittle the crank. We were able to get Crower to send us the crank model, so that we could 'match' it with our girdle/main cap/ and rear main model.

Everything fits like it should, so now, both us and Crower can download the info to a CNC, and get parts coming! :-D
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Richard 2 on March 23, 2011, 10:03:12 PM
Cool, I guess pigs do fly.  :-D :-D
Richard
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on March 24, 2011, 03:34:14 PM
Richard, I don't know about fly, but I hope we can make a mighty fast one! :wink:


I'm going to run water tank, instead of a radiator Do I need a thermostat, or just run continual circulation?

I guess I'm thinking that as short of period of time the car will run, I may not benefit from a thermostat?

Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: SPARKY on March 24, 2011, 04:19:13 PM
Thermostats are a good thing to raise internal operating pressures inside the eng. and heads. Also I run 25 # a racing cap on the radiator in a box.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Richard 2 on March 24, 2011, 07:53:08 PM
Ditto on the thermostat, We used a hand valve to control the water flow to warm-up the engine on start-up the first year. Then went to a thermostat and it worked much better water lasted longer and didn't have to worry about some one leaving the valve in the closed position. :cry:
Richard
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on March 26, 2011, 10:09:24 AM
Thanks for the PM's and replies, everyone! :cheers:


Ok, here are some high-tech (lol!) mockups of the cooling tank, and the chiller tank.

This is the remote thermostat housing- (2) 12an inlets, and a 16an outlet.

Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Rex Schimmer on March 26, 2011, 11:24:45 AM
Buddy,
I a not sure that I completely understand your water system. I looks like you are going to have two water tanks and I think that you plan to have a radiator of some sort in one of them, what is the other one for?

Rex
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: maguromic on March 26, 2011, 12:13:01 PM
Rex, I think that's the tank for the charge cooler for the supercharger.  Nice build Buddy!!!  Tony
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on March 26, 2011, 06:09:37 PM

Man, I told the guys we should keep it simple! I was afraid the use of all the high-tech gadgets and stuff would be confusing! Lol! :wink:
 
The 'tank' in the nose is the engine cooling tank. The 'tank' in the driving compartment, is as Tony said, the cooling tank for the supercharger.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on March 26, 2011, 08:41:39 PM
Ok, we're going to have to kick it in high gear to get finished in time.

Don  has the material cut and blanchard ground for the girdle plate. It's 1.25" thick.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: roygoodwin on March 27, 2011, 12:07:02 AM
This may be a little late since you've already started on the girdle AND the dimensions of the inside of the block may not accomodate this idea. But since you're having the crank made from a billet, have you thought about adding additional main bearings ? kinda like the guys at Uncommon engineering did on the Hudson "9X" about 2/3rds -3/4ths the way down the page at http://www.uncommonengineering.com/  .  Might allow you to make more Hp & still keep it together.

Roy
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on March 27, 2011, 05:18:48 PM
It's a little late in the game for that, now!

I think we'll be ok. Bob Brooks is building one, that he's planning on running Nito in. He feels he can safely get 6000-6500 rpms, with the stock crank.

I think it's safe to say, that Bob is far more qualified to make that assement than I am!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on March 28, 2011, 08:03:16 PM

I've been reading the 'Treits Streamliner' thread. What an awesome build!

Reading the oil pan post, I realize that I've completely overlooked getting one built.

Any suggestions for where to get a custom, one-off, dry sump pan built?

Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Dynoroom on March 28, 2011, 08:25:50 PM
You might try Jeff Johnstone @ Billet Fabrication.
He'll probally need a block to do it but so will most others.

Then again the guys you currently have doing work seem up to the task too.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on March 28, 2011, 08:33:52 PM
Thanks, I'll contact him.

I agree that we could do it, given more time. You have to remember, that everyone, with the exception of Jeff Fowler, Fowler Engines, are team mates and volunteers. So, there is only so much time and money.

A year seemed like LOTS of time to do this, but we are running out of time fast. We are going to have to farm some stuff out, to finish in time.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on March 28, 2011, 09:31:25 PM
This just in from BoredandStroked:


Chris brought over his latest SolidWorks models as well as a lexan "gasket" surface that he CNC cut from the CAD model. We use the gasket surface to validate bolt hole, bore and valve locations. As we've added 7 new studs, we wanted to validate the locations on the block one last time.

Chris "tweaked" his head model in a few places and we decided to raise the combustion chamber over the piston about .037 to increase the transfer area into the chamber a bit more.

Also we've added steel ARP 'Insert Washers' for all the studs -- they have an insert collar that centers on an ID recess of the stud hole. The tops of the stud holes are relieved just a bit to allow the larger insert collar ID. If you look closely at the stud locations, you'll see the relief.

We're also going to make the water manifolds separate pieces (one on each side with hoses) - so it will be easier to re-torque the heads when they are hot. The previous across-the-head one-piece manifold would have made that difficult.

Chris is going to have a complete prototype head CNCd this week out of 'ren' prototype material -- we'll validate everything with a physical head on the block . . . then Kevin can fire up his CNC mill! Don will probably be doing the combustion chambers - as they require some specialized tool-path software.

Here are a few pictures . . . you'll even get to see Chris' mug shot  :-o He's really a lot worse in person (just kidding Chris  ) :evil:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Peter Jack on March 29, 2011, 04:14:02 AM
You can tell right away he's talented. He knows the correct hand to hold the pen. :-D :-D :-D

Pete

P.S. - Any good fabricator should be able to turn you out a pan. He'll need either a block or a strong jig with the holes correctly drilled to build it flat and accurately. A crank and a couple of rods would really help to build a good windage tray system. Good luck!

PJ
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on March 30, 2011, 03:27:21 PM
We're trying to 'round off' some of the edges of this old brick, so we have some fiberglass parts being made. I'm pretty excited about these parts.

The gent making them does super work, and was crew chief on one of the record setting cars at Bonnevile. We feel not only privileged, but also extremely lucky, to have his expertise on our side.


Any idea who it is?

Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on April 02, 2011, 11:08:33 AM
John Kimbrough did the body work on Hooley's car, and was Hooley's crew chief. We all know how that worked out! :cheers:

Here is John's latest work, and the note he sent me this morning:

I made the plugs for the faring bubbles in the area where the headlights were removed. I will glass over the plugs Monday. They mount from the inside with four bolts that go in to threaded inserts in the faring's . The are just a smooth 3D teardrop shape. I hope to be done with my part this next week. The picture is not a good one but you get the idea I hope. They will be made to fit after they have the fiberglass on them. Right now they are smaller than they need to be to allow for the thickness of glass.

Oh, and John- Congrats on the new Daughter in Law today!!!! :cheers: :cheers:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Tman on April 04, 2011, 05:37:16 PM
John K is a good guy! He helped us with our HAMB Drags BBQs the first few years.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: GH on April 07, 2011, 09:48:04 AM
 And John is helping me with some missing parts on the GMC I am doing.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on April 08, 2011, 02:43:39 PM
I agree- John's a great guy!

Gary, I'm sure he'll do you a great job!

--------------------------------------------------------------------------------

Steel Main Caps . . . Some Heavy Stuff!

Don and his CNC guy (Allen?) have been making steel chips for the last couple days - whittling out some big-Acura steel main caps. These are full-height designs that go from the bearing saddles all the way up to the bottom of the block - about 3.00" tall.  The full steel girdle will then put a bit of a 'squish' on them.

I'm going to be in the Los Angeles area next week, so I'm going to go to Deist and DJ Safety. I plan on getting the fire suppression equipment, parachute,helmet, and some type of HANS device.

Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on April 09, 2011, 04:34:18 PM
I received the flow numbers from Joe Abbin. As you can see the flow pick up substantially with a conventional port & relief, but improvement was disappointing on the intake at high lift. Any further improvement might take major surgery as it appears port limited, although more/better porting will also help. The cylinder tested was second from the front on the passenger side.
The exhaust picked up very well, essentially matching the intake.

There are 3 Flatcads going to Bonneville this year, that I know of. I'm going to see Bob Brooks Tuesday, and check out the fuely Flatcad that is going in his liner.

Garry Odbert is building a roadster with a Procharged blown Flatcad. When I talked to Garry this morning, he had some interesting info for me. Garry had been working with Joe Mondello (RIP), on porting and flow work. Following Joe's advice, Garry has been able to get 167 cfm on the intake side, and 144 cfm on the exhaust side, using STOCK valves and heads.

Needless to say, we're working with Garry to replicate his porting success. :cheers:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Milwaukee Midget on April 09, 2011, 05:05:40 PM
Curious as to what your intake valves look like.  Waisted stems might help, if you haven't already gone there.

Chris
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: desotoman on April 09, 2011, 05:17:49 PM
I am curious as to why you are relieving the block since you are making new heads? My experience on the flow bench told me air does not like to turn sharp 90 degree angles, so we put a radius instead of a relief on the block. You are not running normally aspirated so compression is not a issue.

Tom G.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on April 09, 2011, 05:35:55 PM
Chris, what do you mean by "Waisted stems"?

Tom, I agree with you. Joe is fairly set in his ways, and did what worked for him on his Ford flathead. Relieving has always been controversial, to say the least.

Joe Mondello had different porting ideas for this engine, and Garry followed his advice. Garry got 17 more cfm with this method, using stock valves and stock heads.

Guess which way we are going to go?!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Milwaukee Midget on April 09, 2011, 06:44:16 PM
Gripped this picture from another build by Brian Sidebotham on the performance Vaxhaul site.

(http://i361.photobucket.com/albums/oo58/milwaukeemidget/waistedvalve.jpg)

The biggest obstruction in a tight port is almost always the valve itself.  
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on April 10, 2011, 01:56:34 PM

Chris, I got you! I call them sculpted, but never really knew what they were supposed to be called.

In the end, we'll have something similar to your pic.

Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on April 13, 2011, 10:46:20 PM
I just returned home from California. I planned on staying longer, but had to cut the trip short. I was able to meet up with a bunch of people, and had a great time.

Stan, thanks for the burrito, beer, and laughs! :cheers:

I went to DJ Safety, and quickly learned that unless you're wealthy, safety equipment is damned expensive! I would have rather got my wang caught in my zipper, than make the phone call to my wife, that I had to make, explaining why I had spent soooo much!

Good people there, though, and I was able to get, or order, everything I needed.

Dale is going to start the port work tomorrow.

I showed you all the Cad drawings of the girdle and main caps. Don finished them, and here are the finished products- he did a helluva nice job!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: interested bystander on April 13, 2011, 11:19:44 PM
Been meaning to mention , one of the best and most amazing build diaries in a long time.

Don't judge all the So Cal racer's by STAN BACK (ask Freud), but you were in good hands as long as some of the other Road Runner's were present!

Did he really endo his Go Kart and still set top time???
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on April 13, 2011, 11:31:45 PM
Did he really endo his Go Kart and still set top time???

Haha! If he did, I'm going to protest! :-D
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Stan Back on April 14, 2011, 10:50:39 AM
The Road Runners were calling Flatty the Bonanza Kid -- something about being a descendant of Dan Blocker.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Tman on April 14, 2011, 11:49:42 AM
Only fitting, Blocker was a car guy and Hot rodder :cheers:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 4-barrel Mike on April 14, 2011, 12:07:17 PM
I always remember him as a biker.   :mrgreen:

Mike
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on April 14, 2011, 12:44:37 PM
Iterested Bystander, thanks for the kind words! Yes, I was in very good hands, and met some real great people!

The Road Runners were calling Flatty the Bonanza Kid -- something about being a descendant of Dan Blocker.

Stan, I'm sure it's just you roadster guys saying this! :wink:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Freud on April 15, 2011, 12:19:09 AM
If you drink box wine you can be very comfortable with Stan Back.

Box wine is his area of expertise.

His wife can educate you regarding champagne.

Under most any circumstance everyone can be comfortable with Stan.

Just remember: if you apply for membership in the San Berdo Roadster Club, he is the first one to judge your application.

I'd suggest that you never apply while running a "C" Gas roadster, especially when the rad shell is leaned back.

If your application offends him, it never goes any farther. He reads slowly and carries a big stick.

FREUD
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: maguromic on April 15, 2011, 12:55:56 AM
 "Nine-tenths of wisdom consists of being wise in time."  Theodore Roosevelt     :| Tony
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on April 15, 2011, 01:33:44 PM
Tony, that leaves me out nine-tenths of the time!



Here's what we are doing now-

Dale is starting the porting.

Kevin is starting the heads

Don is working on the rear main seal housing.

Chris is doing CAD work for this engine, and the next one.

Pete is working up a new cam/lifters design.

Randy is getting the clutch linkage finished, and is almost done with the floors.

John is working on aero with his fiberglass, and also air induction.

Mike is pounding metal and slinging mud, getting ready for paint.

I'm working on the chiller box, and the engine cooling box. Can I use a thermostat, without a radiator, and just pressure up the cooling box? I can't see where 15 lbs pressure should be that big of deal.



Lots going on, and I should have pics to post next week.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: dw230 on April 16, 2011, 10:52:10 AM
Progress is apparent.

"John is working on aero with his fiberglass, and also air induction."

John is the smart one, working on aero, because there is no aero with a vintage coupe(or roadster for that matter).

DW

Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Stan Back on April 16, 2011, 11:36:32 AM
Dan --

He's switched to VCC and the work is on the nose.

Stan
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: dw230 on April 16, 2011, 11:57:42 AM
I know that Stan - still, just how much aero is there available on a '38 Chevy?

DW
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: SPARKY on April 16, 2011, 11:59:52 AM
at least as much as a 5' crossform :-D
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: maguromic on April 16, 2011, 12:03:10 PM
I know that Stan - still, just how much aero is there available on a '38 Chevy?

DW


 :evil: :evil: :evil:  Tony
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on April 16, 2011, 08:58:56 PM
I know that Stan - still, just how much aero is there available on a '38 Chevy?

DW

Dan, you might be surprised!

Well, ok, you wouldn't- all we are trying to do is round the corners off of this brick. John is setting up an air induction, that should help the blower some.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: WZ JUNK on April 18, 2011, 06:31:57 AM
I know that Stan - still, just how much aero is there available on a '38 Chevy?

DW

That is what makes my part the hardest.  Actually I am just trying to help a little.  You are right, there is not a lot that can be done.

It is a fun project.

John
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: jimmy six on April 18, 2011, 10:02:11 AM
I would take extra care in making sure the "aero" I add is not working against what I have in the first place...Racers tend to out smart themselves a lot..........JD
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on April 21, 2011, 02:29:40 PM
I would take extra care in making sure the "aero" I add is not working against what I have in the first place...Racers tend to out smart themselves a lot..........JD

Jimmy, is that even possible on this brick? Lol!

John sent this to me today:

 
I roughed out a plug for the air inlet this morning.  It will be used to test fit it to the car.  The shape needs to be oval to clear the top of the water tank and then transition to round so that a flex hose will connect it to the piece that will be made to fit the injector.

When I asked if he minded me posting it, I received this:

 
Sure, I am always interested in some feedback.   This stuff is so different and many times you get some ideas that you have not thought about.  I sending a picture to the guy that may form it for me.  He may make it out of carbon fiber.   The other piece that will mount to the Enderle will be a similar shape but a different size.
 
Seems John worked on a gent's car, that makes protheses. They are contemplating making these parts with the same method.

Dodge thing looks factory to me! :cheers:

Second pic just came from Kevin- chips are gonna be flyin'!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on April 21, 2011, 07:30:13 PM
Here is the test piece Kevin whittled today- water passages in head.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: maguromic on April 21, 2011, 09:54:58 PM
Looking good Buddy!  How many bolts do you have holding the tow half's together?  Tony
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on April 22, 2011, 01:20:57 PM
Tony, that question really has a two-part answer;

There are 10 bolts directly holding the 'halves' together.

We added 7 head bolts, for a total of 28. The inside of the heads are o'ringed. The 10 bolts hold the halves together, and help seal them. The 28 head bolts, when torqued, also help seal them.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Captthundarr on April 22, 2011, 05:28:23 PM
WOW Kevin must have one sharp pocket knife :-D Looks real good. Can't wait to see the finished assembly.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on April 22, 2011, 07:18:31 PM
WOW Kevin must have one sharp pocket knife :-D Looks real good. Can't wait to see the finished assembly.

lol!

Fitting the crank girdle- the 1-1/4" girdle bolts to the block and the mains, then the dry sump pan bolts to the girdle.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Rex Schimmer on April 23, 2011, 12:39:53 AM
Buddy,
How many scavenger sections do you plan to have pulling from the bottom end?

Rex
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Koncretekid on April 23, 2011, 11:34:12 AM
"I'm working on the chiller box, and the engine cooling box. Can I use a thermostat, without a radiator, and just pressure up the cooling box? I can't see where 15 lbs pressure should be that big of deal."

I'm pretty sure you didn't forget to do the math on this, but for those who haven't, 15 psi is over a ton per square foot.  That can add up to be a big thing.  When you finish it, test it with water pressure and not air pressure!

Tom

P.S. I'd really like to get up to see your project, as I'm only down near Boulder.  I'd planned to ride up on one of the bikes one day, but with the weather this morning (and the forecast), it won't be this week!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on April 23, 2011, 12:41:11 PM
Rex, there are two scavenge lines. I wish I had ordered the other pump, that had 3, but I didn't.


Koncretekid- Respectfully, it doesn't matter. 15psi is equal to 2160psf. So, if you put 80psi in your tires, you are also putting in 11,520psf in your tires.

You could change  psi or psf to newtons, and it still boils down to the same thing- 15psi is very little pressure, regardless of the area effected. The pressure remains the same, only the volumn will change.

Will the tank sides 'bow' out? Probably!

Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Rick Byrnes on April 23, 2011, 01:38:36 PM
The tank with 15 psi will just conform to the space in which it is confined.
Hard to remove, but just fine as long as you leave it alone.
My first tank in the lakester was that way, but now have gone to radiator in a bathtub.
It works very well and with the bathtub being vented to atmosphere the water will boil away providing an extreme amount of heat transfer.

But what do I know, I failed thermo.................
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: WOODY@DDLLC on April 23, 2011, 06:34:42 PM
Seems like a simple thing until you look at it from another angle!  :-o  :-o

I just guessed at dimensions - shape response to pressure is more important - devil is in the details!  :evil:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on April 23, 2011, 06:50:55 PM
Man, you seriously just peed in my Wheaties!

Thanks for posting this- it's great info to have. Seriously disproves my unfounded theory that 'it's just low pressure!"

If all the sides were flat, rather than having the radius across from the flat side, how much would the dynamics of this change?

Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: SPARKY on April 23, 2011, 08:04:00 PM
my tank is bulged and it is vented---I think when the vent gets "plugged" with water when the chute goes out :-o
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: WOODY@DDLLC on April 23, 2011, 08:20:28 PM
First your Wheaties now your grape nuts!  :-D

Some strategic bracing or a sphere or a cylinder with hemi-spherical ends, hmmmmmmmm??  :?

Seriously guys, it's amazing what we can get away with some times ain't it!

[BTW: My rates are very good for racers! I know a shameless self-plug!!  :roll:]

Loving your build diary!!!  :cheers:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on April 24, 2011, 09:54:34 AM

Thanks for the info- I'm going to have to think about this.
 
Ok, Randy and Mike have been busy with mechanical and body work.
 
Brake pedal, master cylinder, clutch setup.

 
 
Hapy Easter Everyone!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on April 24, 2011, 09:56:55 AM
A little body work. Yes, there is bondo in the car.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: SPARKY on April 24, 2011, 10:00:55 AM
ahhh-- the magic of bondoli
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on April 24, 2011, 10:04:48 AM
Spraky, isn't that the truth! :-D

Modifications to the new hood,  and John Kimbrough's work.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on April 29, 2011, 07:43:10 AM
It's starting to look like I hoped! :-D
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Milwaukee Midget on April 29, 2011, 09:39:21 AM
I've never been a '30's bow-tie guy, but you have absolutely perfected the lines on this car.

This is a stunningly beautiful chop.

Excellent work.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Seldom Seen Slim on April 29, 2011, 09:54:19 AM
Decent!  Love the callipygian front fenders. 8-)
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on April 29, 2011, 10:07:30 AM
Decent!  Love the callipygian front fenders. 8-)

Haha! Jon, are you trying to tell me it looks like ass? :-o

Chris, Thanks! It turned out as I had hoped! :-D
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: bvillercr on April 29, 2011, 10:36:18 AM
Looks sexy!!!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Seldom Seen Slim on April 29, 2011, 11:59:38 AM
Ah, 38F -- not all that many know the word -- that's why I tried to slip it in there.  Whatever words I use, though -- you sure are on the way to a great car.  Best Wishes!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: SPARKY on April 29, 2011, 03:04:20 PM
 :cheers: :cheers: Is the eng offset slightly to the pass side? What color are you thinking about???
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on April 29, 2011, 08:16:35 PM
Thanks guys!

Sparky, I don't think so, but after looking at the pics, I'll have to measure again!

As for color, I'll try and get what I have in mind photoshopped....
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on April 30, 2011, 04:59:35 PM
Chris managed to get a full prototype machined at work out of a REN material. We fitted them to the block, put bolts through all the holes to test alignment, checked the bore alignment one more time and checked valve to head clearance at a .525 lift. We have about .080 over the valves - just about right.


I can't wait to see the aluminum ones Keven is doing! :-D
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on May 01, 2011, 06:41:53 AM
:cheers: :cheers:  What color are you thinking about???

Sparky, I'm thinking something along these lines.

Also, I keep getting emails asking why, if I'm running Comp Coupe, I have the fenders on the car.

Because I like the way it looks! We'll get license runs in with the fenders, then pull the fenders if/when we can make a run for a record attempt.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: SPARKY on May 01, 2011, 07:40:33 AM
 :-o That is one Bitchin,  8-)  lookin bitch of a ride sir!!!!  :cheers:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on May 01, 2011, 09:04:43 AM
Thanks Sparky! I just hope we can get it to run well.
 
If not, maybe I'll buy a gold chain, put it on a trailer, and hit the show circut! Lol!
 
 
I found an aluminum 12 port Jimmy 302 cylinder head yesterday, and an injection system for it- that might be fast and fun...... :evil:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Captthundarr on May 01, 2011, 10:04:06 AM
Man that thing looks like it's doing a buck 25 sittin' still 8-)
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: RichFox on May 01, 2011, 10:42:55 AM
What kind of head. Who cast it?
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on May 01, 2011, 10:54:34 AM
Rich, it's a Fontana head.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: RichFox on May 01, 2011, 01:36:21 PM
Whoa. You stepped up for the best. I'm proud of you. Not sure how it fits with the FlatCad but that's fine. I think it was '79 or so when Joe went 200 on pop, unblown in his '53 Stude with the Skinner head. That was some pounding ground.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on May 01, 2011, 01:46:10 PM
Rich,


You've followed the FlatCad stuff long before I decided to go to the salt. I wanted a fairly traditional build, and to find out what a FlatCad engine is capable of. I believe that I will find out the answer to that question.

After a LOT of research, though, I've come to this conclusion:

If I want to be a serious contender in the XXO class, I need to switch to  a Jimmy 302. I'd like to build a REAL contender, that could run in the coupe, and hopefully, someday, run in someones lakester.

....I think I better plan on working a LOT of overtime!

Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: jimmy six on May 01, 2011, 01:56:15 PM
You may find your fenders are your friends...Open tires are the enemy..Don't be too hasty to remove them. Good luck..JD.

PS: Fontana/Skinner heads are a good thing to own............................................ :cheers:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on May 01, 2011, 04:13:05 PM
Jimmy, we'll have time to see- The licensing runs will dictate some of what we do.

This pic is what I'm shooting for....


...and a quick update- I just bit the bullet and made the deal on the Skinner head, with the injection system. Working overtime probably won't be a problem, as my wife is bound to be plenty hot! Staying away for a while might be good for my health! :evil:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on May 06, 2011, 10:45:03 PM
OK, just a quick teaser here:

Pete, one of my FlatCad teamates, approached me about a new build.

Look for the build thread after speed week.

All I can say is, Pete's car in the pic, fuel, blower, 12 port Skinner, and GMC 6! :evil:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on May 08, 2011, 11:28:25 PM
Now, back to our regularly schedulled Build!

It's BoredandStroked's Birthday, but he spent the day in the shop porting the FlatCad;


HAPPY BIRTHDAY DALE! :cheers:


From BoredandStroked:


The FlatCAD's intake ports can be ported to a much bigger size than a Flathead Ford, and we can easily run a 1.94 valve. With that said, I believe the intake is "port constricted", not valve constricted. The area that I really decided to work on was the area where the port turns. The stock port is really choked down in this area -- big Acura piece of guide boss and other crap in the way. Just a poor design for flow -- so let's "fix it"!

So - I let the cast iron fly . . . stopping to check progress with the sonic tester along the way.

Anyway - here is a stock FlatCAD intake port -- notice how constricted it is in the bottom area by the guide (where it makes the turn) . . . this to me is the most important area to work on:

This port isn't actually done yet - have more work on the manifold side and once we put larger valves in it, will go back and blend the bowls once again - but I'm happy where it has come . . . though it takes a LOT of time to port this sucker (bigger job than I thought).

Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on May 12, 2011, 05:08:48 PM
Dale finished the oil pan rail design, and it should be water jetted by tomorrow. Then the rail is off to Doug Lee's in Miami, OK for the dry sump oil pan.

Rear end is going back in the car tonight. I decided I didn't like the gears available with the 4:86 pinion, so the car now has a 4:11

Body work is 90%, and the car is heading to the paint booth in 2 weeks.

I met with the lettering guy today, so we're on track there. Venolia is working on pistons, and Crower is about to ship the crank!! :-D
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on May 12, 2011, 08:08:16 PM
I forgot to add that the heads are almost done...
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: SPARKY on May 12, 2011, 08:45:47 PM
How much wall do you feel like you need to leave, when you sonic them?
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on May 12, 2011, 08:57:45 PM
Sparky, this first go around, we are leaving .125" to be safe.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: maguromic on May 12, 2011, 09:37:11 PM
Looking good Buddy!!!!  :cheers: Tony
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Stan Back on May 12, 2011, 10:08:23 PM
1/8" over the combustion chamber?

I'm confused.  Yes -- what's new?

Stan
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on May 13, 2011, 12:22:51 AM
 Thanks Tony!

Stan, I believe Sparky was referring to post #385, where Dale was talking about sonic testing the port walls. We would not have to leave even .125, but we will until we are comfortable with the tool's accuracy.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: maguromic on May 13, 2011, 01:28:33 AM
Buddy, Something to remember when you are making your dry sump pan. Just like piston technology has come a long way in the last 10 years, dry sump pan designs have also come a long way in the last 10 years. Tony
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on May 14, 2011, 07:13:48 PM
Thanks Tony!

I'm gonna hijack my own thread here, to show you something really cool!

How about cast 4-71 blower intakes, for the Flatcads? These are soooo cool, and this is the prototype!

Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 4-barrel Mike on May 14, 2011, 10:50:41 PM
Dennis and Shawn (?Sean?)??

Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on May 15, 2011, 03:10:45 AM
Mike, you lost me! :?
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 4-barrel Mike on May 15, 2011, 09:28:58 AM
Couple of local guys casting up flat Cad and blower stuff:

(http://a4.sphotos.ak.fbcdn.net/hphotos-ak-snc6/65401_168072669899245_100000895399459_328306_6977421_n.jpg)

Looks to be what you posted up.

Mike
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on May 15, 2011, 10:39:50 AM
Gotcha now!

Yes, The gent that I know that's involved is in Washington.

He's casting it for whoever owns that roadster.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on May 16, 2011, 03:07:18 PM
Mike,

I enquired about Dennis and Shawn, and received this reply:

Buddy, the car belongs to my friend Dennis, I don't know who Shawn is, posibly one of Dennis friends. if he had a picture of the car with the blower manifold on it, it was probably the silver painted foam mock-up manifold we used to get a idea of what we wanted the finished manifold to look like.

 
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Kiwi Paul on May 17, 2011, 01:28:57 AM
The Two Guys working on those Cad parts are Dennis Bradford and Colin Surbert.The pics taken in Colin`s workshop up in the hills behind Washougal, WA. (Think Deliverance.....)The blower to Carb pieces are done and are really nice. A bit specialised, though. Three`97`s on a 4-71, Anyone? :-D :cheers:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 4-barrel Mike on May 17, 2011, 09:18:25 AM
Aaargh!  Of course Colin!  Where did I get Shawn?

Thank K.P.

Mike
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: SPARKY on May 17, 2011, 11:25:10 AM
from a well seasoned cranial cavity  :-P lol  :cheers:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on May 17, 2011, 06:20:01 PM
Colin is the gent I've been speaking with. There are not many aftermarket parts for the Caddy Flatheads, and this is sure to be a head turner!  :-D

Gary Fisher, owner of the C/GMR #272 car, Invited me over to look at and ask questions about his car's frame and suspension. This is a very well built car, built by Roy Fjastad, and used to carry the #777.


Gary, thanks again! It was fun, and informative! :cheers:

Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on May 18, 2011, 08:24:57 PM
Rear crank seal plates are done. :-D


 The steel one mounts against the block - it attaches with 6 bolts --> two into the main girdle and four into the new rear main cap. There will be a thin gasket between this plate and the block.

 The thicker seal plate is made of 6061 aluminum, it has a recessed location to press in the one-piece seal. It uses a set of counter sunk allen-heads to attach to the steel block plate. It will have a gasket between it and the steel block plate.

 Oil Drain Back: The inside bottom of the seal aligns with a "trough" that I put into the back-side of the rear-main cap, which also has a hole through the cap, and a 1/2" channel that goes into the crankcase area. This gives the oil a place to go -- back to the pan.

Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on May 18, 2011, 08:27:37 PM
Also, the bottom of the heads are done!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on May 26, 2011, 06:17:52 PM
One obstacle overcome, so on to the next one!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Milwaukee Midget on May 26, 2011, 06:42:35 PM
Jewels - just gorgeous.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Seldom Seen Slim on May 26, 2011, 08:50:40 PM
Ask M Midget about having us engrave something for you on the top of that tasty-looking bit of metal.  Maybe your signature -- so you'd have the same basic idea the Seth Hammond has on his rocker arm covers.  Yours, of course would be far classier -- 'cause - unh, mmm, because Kudos Laser Engraving would do them for you. 

Nice-looking work.  Congratulations on having such a good time in your build.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Milwaukee Midget on May 26, 2011, 09:11:00 PM
Kudos to Kudos -

(http://i361.photobucket.com/albums/oo58/milwaukeemidget/Road%20Engine/Grenade.jpg)

They were able to duplicate the "Austin/Morris" logotype, make a nice little faux factory style plate, and a couple of brass rivets later -

(http://i361.photobucket.com/albums/oo58/milwaukeemidget/Road%20Engine/DSCN3739.jpg)

Which reminds me - Slim - are you engraving Moon Discs yet?  An MG Octagon would look smashing etched into the middle of my moonies . . .
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: maguromic on May 26, 2011, 10:03:56 PM
Buddy, It looks like you guys are having to much fun! It can be very addicting.  :cheers: Tony
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Drewfus on May 27, 2011, 06:10:42 AM
Been watching your progress with those heads in particular, awesome, I take it that the smaller (I guess they're 1/4") bolts you've got are just to hold the 2 heads halves together when you've removed all the nuts from the studs (so that you're not always having to reseal the join?

Enjoying your build, great to see the enthusiasm and passion

Cheers,

Drewfus
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on May 27, 2011, 07:12:37 AM
Chris, Thanks for the kind words!

Jon, had I known about Kudos Laser Engraving sooner, I would have went that route. The brass tags will be water jetted, so the aluminum background will contrast with the brass for the logo.

Tony, it has been fun! Nothing along the lines of your build, Treit's Liner, or others, but we are feeling pretty good about it!

Drewfus, thank you, Sir!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Seldom Seen Slim on May 27, 2011, 07:18:07 AM
I hadn't thought about engraving Moon discs -- but I think I could make it work.  I can fit items up to 24" x 18" in the machine.  The curvature of the disc might pose a problem, though.  The focus of the laser is pretty critical.  The head of the machine moves in two dimensions - but not three.  I can get away with about a 1/4" variation before the focus is too far out and the laser beam doesn't have enough ooomph to do anything.  Before you send your discs to me -- measure the "height" difference from the center to the extreme outside of the art you want on the disc.  It might end up that you could have engraving that's a total of 4" from centerpoint, might be 8", etc.  By the way, the art/logo/name/whatever does not (repeat NOT) have to be symmetrical like your MG octagon -- it could be, for instance, "Milwaukee Midget".  When your sponsor sees the wording he might catch it when things are upside down, of course.  Heck, even the "MG" in the octagon will only be right side up once every 360 degrees.  My point is that I can engrave straight line art as well as symmetrical stuff.

Next item that needs to be mentioned:  The laser engraver will not "burn" away a bit of the metal as it engraves.  I don't have that kind of power available.  Instead -- I'll use a compound that is painted onto the metal.  When the laser beam hits that stuff the heat bonds it to the metal leaving a pretty durable marking.  The compound is available in black or white.

Yeah, I know -- it's cornfusing to read the above paragraph.  If you've got an idea of what you want on a moon disc -- get in touch directly with me.  Good rates for racers, that's a promise.  

Now that I've said all this -- I think I'll take one of the discs that I haven't put on Nancy's car yet this spring - and give it a try today.  Pictures at 4PM or earlier.  

Thanks for the suggestion, Chris.  And - I now return the topic to 38F's build. :-)
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on May 30, 2011, 10:07:17 PM
BoredandStroked spent the weekend porting. Here is the progress report in his words:

 Well, I can't say that I enjoyed the weekend - spent the last three days porting the FlatCAD block. It is just about the crappiest job that I know - takes days, seems to go on forever and bores that shit out of me. I told my wife, if I ever mention that I'm going to port ANYTHING other than my own engines again - hand me a pair of rusty bolt cutters, I'm going to cut my gonads off

Anyway - wanted to complete it this holiday weekend, but these FlatCADs are big bastards compared to Flathead Fords . . . a TON more work and of course I was optimistic and thought I could do it in 30 - 40 hours . . . NOT! Not only are the ports much bigger, but some of them are long bastards - with funny shapes and bends. All this makes it about 2 - 3 times harder/longer than I imagined. I figure somewhere around 60 hours or so -- that is a LOT of time with a damn air grinder . . .

I've got about 36 hours into it so far - probably 16 - 24 or so more to go @#%#$@#. I'm going to work nights this week - really need to get this to the machine shop by the end of the week.

Here is where I'm at:

1) All of the bowl side work is done - extensive amount of material removed (especially in the floors).

a) Hogged the heck out of all the bowl areas and the transitions into the ports. Used the sonic tester to validate thickness and get some clue as to where I was at. The thinnest section is about .110 -- which is as thin as I want to go. Most of the stock ports are fairly consistent in thickness (.200 - .300) - though I found two that had some core shift and I had to be very careful. My average final thickness is around .150 or so.

2) Cut out a big chunk of cast iron that was in the center two exhaust ports. (see the picture - compare the two sides). It separates the manifold from the heat riser. I cut it out with a saber saw and then ground all of the rest of it away. This will allow me to get into the center exhaust ports and clean them up. There is plenty of room in there - will probably run ONE big tube for the center two ports.

3) Die-Chemed the top intake ports and set their sizes to 1.5" x 2" -- scribed them as such.

4) Ground the living heck out of the intake runners to blend everything in, take as much material out as I felt safe, etc.. I'm hoping to get as much flow as possible in the bottom of the ports. They're pretty damn big now - I believe that with a blower, we'll have plenty of flow. This thing should flow much more than a heavily ported flathead Ford - due to the amount of port volume I now have, size of the valves, etc.. Wish I had a flow bench to measure it . . . maybe some day.

The sonic tester has really helped, but porting this thing still makes me nervous as I've never done one of these beasts before and I really don't want to hit water. I know I'm pretty close in some areas - hoping there are no porosity issues that I can't see.

I'm going to bolt some heads on it and pressure test it BEFORE it goes back to the machine shop. You can bet my sphincter will be a bit tight during the test . . . hope to hell it passes, or I'm going to commit suicide

If it passes a pressure test, this block should make some horsepower -- hopefully we can get everything done and make it to the salt.

It is going to be a thrash my friends . . . lets keep at it!

Well, I tried to figure out how to post pics in the text, instead of as attachments. No luck! Could someone send me a PM explaining how to do this?
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: jdincau on May 31, 2011, 12:11:02 AM
If you do find porosity's I have had good luck with this stuff

http://www.impco-inc.com/page190.html
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on June 06, 2011, 12:15:01 PM
Jdincau, that's good to know-Thanks


Ok, BoredandStroked is just finishing the relieving and porting, so the block can go to Fowler's engines to get worked over. Here are Dale's words:


 here are some photos of the completed reliefs. The style is a 'full relief' - about .170 deep. I'm being a bit conservative on depth - as we just don't know the strength of the block in this area and I really don't want a crack at Bonneville. With that said, I'm happy with the results and I know we have a lot of flow in the transfer area of the head as well . . . so we should be cool.

My main objective was to use the relief to unshroud the valve and enable as much flow as possible at low-lift. The FlatCAD has valves at a 7 degree angle and there is a deep pocket on the cylinder side . . . this is bad for flow as the gas has to come up/over the pocket to get to the cylinder.

Here are some pictures - Here is before I started - notice the deep pocket the valve is in . . .(1st pic)



So, we continue to move along....
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Buickguy3 on June 07, 2011, 09:26:19 AM
My main objective was to use the relief to unshroud the valve and enable as much flow as possible at low-lift. The FlatCAD has valves at a 7 degree angle and there is a deep pocket on the cylinder side . . . this is bad for flow as the gas has to come up/over the pocket to get to the cylinder.

Here are some pictures - Here is before I started - notice the deep pocket the valve is in . . .(1st pic)
   38Flattie,
    That's what the blower is for.  :-D :cheers: :cheers:
  Doug
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on June 07, 2011, 09:33:58 AM
Haha! You're right Doug, but a flathead breathes so poorly, that even a blower needs some help! :-D
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Milwaukee Midget on June 07, 2011, 07:09:34 PM

That's some kick azz machining on that antiquated pig iron lump. 

You're closing in on August - how's the prognosis?
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on June 07, 2011, 07:23:46 PM
The prognosis?

Well, the rods and crank will finally be here next week, so I'm forecasting extreme stress, work filled sleepless nights, followed by extreme anxiety, more work filled sleepless nights, and  one empty bank account!


Isn't this fun?


Oh, yea- We will be there, though! :evil:



Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Milwaukee Midget on June 07, 2011, 08:04:01 PM
The prognosis?

Well, the rods and crank will finally be here next week, so I'm forecasting extreme stress, work filled sleepless nights, followed by extreme anxiety, more work filled sleepless nights, and  one empty bank account!

Weight loss was my surprise bonus last year - I actually forgot to drink a few nights.  :| 

Keep safe, keep going.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on June 07, 2011, 08:19:11 PM
I forgot about the weight loss!

Thank Chris- hopefully I'll meet you on the salt, and we can have a beer in the evening.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on June 08, 2011, 02:21:30 PM
Well, since BoredandStroked seems to have taken the 'glory' jobs, I'll show you the non-glory stuff. lol!

I've been putting this off, because I hate it, but it must be done. I made a trip to the steel supply yard, and bought 2x2 tubing, and cut it in 12' lengths.

A quick trip to my favorite tire store netted be 10 gallons of lead weights. A trip to my buddy's house netted 150 lbs of processed ingots. Total cost of the lead was $50 and a 12 pack!

I'll process the lead, then fill the 2x2 tubing for ballast. I'll probably be at this 2-3 days.

Actually, I think I got the better end of this deal- it's way better than porting!

Oh yea, before anyone mentions it- I'm standing upwind, with boots, heavy gloves, and safety glasses on. Really!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: maguromic on June 08, 2011, 02:34:10 PM
Does your wife know that you took her plant trellis for the project?  Tony
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on June 08, 2011, 02:36:27 PM
SHHHH!

...she's at work! :evil:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on June 20, 2011, 06:46:26 AM
Just a quick update:
 
We got a good start on the cute mount/ push bar. We'll finish it, and the car will go to paint on Wednesday, and lettering next week.
 
The crank and rods finally shipped, and the block is getting worked over at the machine shop.
 
The second pic is the CAD model of the top plate we'll make. The original block had four 3/8 bolts, on each side, that held the intake and exhaust down. The top plate will have additional bolts for the intake and exhaust, and will tie the sides of the engine together, so that we don't 'split' it in two! It will be made from .625 mild steel.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on June 21, 2011, 01:02:24 PM
Whoo-Hoo! Russ Meeks, Finish Line Coatings, has agreed to sponsor us, as has Delcam! I'm stoked about this! :-D

Now, we'll be tearing the rear end apart, the front and rear wheel bearings, pistons, valves, heads, etc., to be coated.

Delcam is/has providing softare for the cnc work!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on June 21, 2011, 11:25:14 PM
Sneak peak!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Milwaukee Midget on June 21, 2011, 11:49:00 PM
Looks like some sort of Mopar.

Oh - the shiny one - Very Nice!

 :wink:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on June 22, 2011, 08:15:55 AM
Looks like some sort of Mopar.

 :wink:

Good eye! That's Randy Jackson's 1963 or '64 altered wheel base Dodge Dart.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Milwaukee Midget on June 22, 2011, 07:32:29 PM
Couple pics of it on the H.A.M.B boards - looks like a work in progress (aren't they all), but nothing raises eyebrows like an awb Mopar!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on June 23, 2011, 03:42:42 PM
Ain't that the truth, Chris? HAMB drags are on the 20th, so Randy and I are going to beat feet back and run the Dodge, his blown 'T', and the FlatCad at the drags!


Car came out of the paint booth this morning, so pics to follow!


In the mean time, we're thrashing on the FlatCad, trying to get it together. We were going to 'spilt' the siamesed center exhaust, but we're running out of time.

What I'm looking for is a pair of 3-1 collectors, with 2 -2", and one 2.5" inlets.

Anyone here do that type of work?

Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Tman on June 23, 2011, 03:59:51 PM
Ain't that the truth, Chris? HAMB drags are on the 20th, so randy and I are going to beet feet back and run the Dodge, his blown 'T', and the FlatCad at the drags!


Car came out of the paint booth this morning, so pics to follow!


In the mean time, we're thrashing on the FlatCad, trying to get it together. We were going to 'spilt' the siamesed center exhaust, but we're running out of time.

What I'm looking for is a pair of 3-1 collectors, with 2 -2", and one 2.5" inlets.

Anyone here do that type of work?



Yeah I hate the fact that I have to miss the  HAMB drags but Bonneville has precedence this year! But, I am building the Tudor to go after the Yay-Hoo Cup and my Pal Flamedabone.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: fredvance on June 23, 2011, 04:25:16 PM
You might try Burns Stainless for your exhaust stuff.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on June 23, 2011, 04:35:27 PM
You might try Burns Stainless for your exhaust stuff.

Unfortunately,no one carries a collector like I need. I'll have to have it custom built.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: fredvance on June 23, 2011, 04:36:26 PM
I believe they do custom stuff.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on June 23, 2011, 05:25:44 PM
Fred, they do, but Vince at Burns  is on vacation for another week!


Hey- The cam showed up!

This is a monster grind, by Bullet Cams. .525 lift, 280 duration- huge for a flathead!
Joe Paneck did the billet blank.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: WOODY@DDLLC on June 23, 2011, 08:01:07 PM
Unfortunately,no one carries a collector like I need. I'll have to have it custom built.

Try "Header Bob" McDonald: www.cppexhaust.com
He's in NC (704) 622-8280
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Milwaukee Midget on June 23, 2011, 08:09:53 PM
That's a big bump for a long, three bearing cam.  Specs?

Be gentle at the strip - I expect to take a closer look at this in August.  :-D
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on June 23, 2011, 08:27:51 PM
Thanks Woody!

Chris, the HAMB drags are on August 20th, after B'ville!

Specs are .525 lift, 280 duration.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on June 24, 2011, 11:41:41 AM
Another quick sneak peak!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: SPARKY on June 24, 2011, 12:10:11 PM
DAMM what a bitchin ride that is going to be!!!! :cheers:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: zenndog on June 24, 2011, 01:11:54 PM
Does your wife know that you took her plant trellis for the project?  Tony

Hopefully she doesn't use it to grow green beans or cucumbers :-o
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Tman on June 24, 2011, 03:41:36 PM
What color is that red?! If my Tudor is not black it may be a dark red.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on June 24, 2011, 07:02:32 PM
Roses, Zenndog, Roses!

What color is that red?! If my Tudor is not black it may be a dark red.

The pic is decieving, Trent. It was cloudy out, but the color is bright red. In fact, it's called 'Bright Red'! It's just an enamal paint.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Tman on June 24, 2011, 08:49:37 PM
Roses, Zenndog, Roses!

What color is that red?! If my Tudor is not black it may be a dark red.

The pic is decieving, Trent. It was cloudy out, but the color is bright red. In fact, it's called 'Bright Red'! It's just an enamal paint.

OK, gives me ideas however!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: dw230 on June 25, 2011, 10:34:58 AM
Years ago I painted my '72 El Camino Viper red. Best red I have ever used. Give it a look when making your choice.

Oh yeah, I painted the Rally wheels yellow. Only three peopl liked the wheels, the guy I paid, the painter and me. I did get a bunch of thumbs up though. Joanie gave me so much flack that I ended up repainting the wheels body color.

DW
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Tman on June 25, 2011, 06:17:17 PM
Years ago I painted my '72 El Camino Viper red. Best red I have ever used. Give it a look when making your choice.

Oh yeah, I painted the Rally wheels yellow. Only three peopl liked the wheels, the guy I paid, the painter and me. I did get a bunch of thumbs up though. Joanie gave me so much flack that I ended up repainting the wheels body color.

DW

Thanks Dan!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: GH on June 26, 2011, 10:02:41 AM
Buddy, are you going to the HAMB drags in August?
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Tman on June 26, 2011, 10:20:23 AM
Buddy, are you going to the HAMB drags in August?


He mentioned on the HAMB that they are running the car there for fun.  :cheers:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on June 26, 2011, 10:26:31 AM
Buddy, are you going to the HAMB drags in August?

Gary, yes we are!

If the engine survives the salt, we'll make a couple of passes for fun. The strip should not be as hard on the engine as the salt. If the car is not running, we'll take it and just watch the drags.

I've been trying to borrow a set of slicks, and haven't found any yet, but I still have time.

Hopefully, I'll see you there!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on June 26, 2011, 02:45:04 PM
Question here:



I'm figuring out some of the oil system plumbing. Do I need to run an oil filter system?

If so, should the filter be before the oil enters the pump, going to the engine, or after (this,I would think) the pump, on the return side?

Thanks in advance!

Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: RichFox on June 26, 2011, 03:10:48 PM
Since it was easy to do I ran an oil filter on the pressure side of the pump. Really I don't expect to run the oil long enough to get it dirty, and the pickup screen will keep the big hunks out. But what's the harm?
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on June 26, 2011, 03:16:06 PM
Thanks Rich!

I also have screens in the pan.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Milwaukee Midget on June 26, 2011, 03:16:58 PM
I can speak for the FE Ford and the A block BMC.  Sump, pump, filter, galleries.  I don't know if it's different with a dry sump.

A lot of salt in the air at Bonneville - gets everywhere.  Taste your oil after you've spent a couple of days on the salt.  It's not like popcorn, but some salt gets in there.  

I'm thinking I'd use a filter.  This one is to expensive and too exotic to risk it.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on June 26, 2011, 03:19:51 PM
Thanks Chris!

I'm going to use a filter- just seems like a good idea, especially since I don't have an air filter!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: manta22 on June 26, 2011, 03:52:15 PM
Question here:



I'm figuring out some of the oil system plumbing. Do I need to run an oil filter system?

If so, should the filter be before the oil enters the pump, going to the engine, or after (this,I would think) the pump, on the return side?

Thanks in advance!



NEVER put a filter ahead of an oil pump (or a fuel pump for that matter) -- a screen is OK to keep big pieces of debris out of the pump, but a filter has too much restriction.

A pump can generate lots of pressure on its outlet side but on the suction (inlet) side it can't pull more vacuum that the atmospheric pressure. Since a pump isn't 100% efficient, the vacuum won't be very high but it won't suck lots of oil through a restrictive filter. In the case of a fuel pump, the suction can cause the formation of bubbles in the fuel-- not good.

REgards, Neil  Tucson, AZ
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on June 26, 2011, 04:03:49 PM
Neil,

That makes sense. I'll put it on the discharge side of the dry pump, between the pump and the resevoir.

Thanks!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Milwaukee Midget on June 26, 2011, 04:30:17 PM
I'm going to use a filter- just seems like a good idea, especially since I don't have an air filter!

No way of running any kind of an air filter? 

http://www.youtube.com/watch?v=F1BZg6aCGd8

Starts about 4:25 - The series is specific to the A-Block, but pertains to all engines. 
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on June 26, 2011, 06:46:49 PM
Unfortunatly, I can't watch vidios on this company computer, and I'm at work another week

I'm running the bug catcher, and they have air filters available. I've never seen anyone run one, nor have I seen any flow data on them.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Stan Back on June 26, 2011, 07:16:30 PM
Buddy --

Where's the salt gonna kick up from to the top of the hood with your bulbous (I mean the car's) front fenders -- as long as you're going straight?

Stan
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on June 26, 2011, 07:33:45 PM
 Stan, no fenders are required in comp coupe or altered.

Remember, it's not having a top that makes you go 'round, not absence of fenders! :evil:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Rex Schimmer on June 26, 2011, 08:59:08 PM
Buddy,
I'll give you my standard "rant" on filter location in a dry sump system. Almost everyone wants to put the filter on the outlet of the pressure section and it has been done for years but the best place for a filter is on the scavenger lines before the oil tank. Any engine parts or contamination that goes through the engine will go through the scavenger pumps and into the oil tank. Now gear pumps,which are the type of pumps that most dry sump systems use, are pretty dirt tolerate especially at low pressure, so if they ingest some smegma from the engine the scavenger pumps many have some scoring between the gears and the pump housings which will not adversely affect their function as they are low pressure but if this happens on the high pressure pump it will become less efficient and potentially have a more difficult time maintaining oil pressure. Putting the filter in the oil return lines to the tank will keep the tank clean and also prevent contamination from going to the high pressure pump. I think that most NASCAR set ups use both filters in the return lines and a smaller filter in the pressure line, but if you are going to only use one filter then put it in the return line to the tank.  Use a good filter, that is one that is rated at least 10 microns and make it big, this keeps the pressure drop down and also it will hold more contamination, although if you have any contamination this is probably a sign of engine problems.

Another note regarding filtration, you would be surprise on the amount of contamination in a quart of "new" oil, some place I have some microscope photos of the junk that came out of a "new" quart of Pennsoil, you would not want this stuff in your engine. Obviously the best thing you could do is to filter the oil as you put it into the tank, most of us don't have that option so the next best thing is to make sure you don't try to drain the very last drop of oil from each quart as the junk settles to the bottom of the bottle and is usually in that last few drops.

Rex

Rex
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: SPARKY on June 26, 2011, 11:00:48 PM
I put and inline screen filter on the return so that I can check for debris between runs.  I may consider puting my big on the return. 
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: GH on June 27, 2011, 08:59:40 AM
Buddy, maybe we could have a match race. My old GMC has a 2.43 rear end with a 29" tire and yours is probably high geared also, might be a lot of fun.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on June 27, 2011, 10:25:33 AM
Sounds good to me! Winner buys the beer? :cheers:

Mines a one-legger, and heavier than Hades, so I don't expect much, but it will sure be fun!

See you there.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: GH on June 28, 2011, 09:36:37 AM
Buddy, I usually drink Bud Light, however, when it's free I'll drink about any kind. We will probably have the slowest ETs of the meet.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on June 28, 2011, 10:13:14 AM
Buddy, I usually drink Bud Light, however, when it's free I'll drink about any kind. We will probably have the slowest ETs of the meet.

Yea, but we'll look real cool! Lol!

Besides, that 6 of yours should get up and go!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: John Burk on June 28, 2011, 02:08:46 PM
Rex

You advise having a filter on the scavenge outlet and filtering new oil as it's added . Why not an inspection screen on the scavenge outlet and low pressure drop (bonded glass) filter on the pressure outlet ?

John
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on June 28, 2011, 03:47:29 PM
Randy sent me some pics of the re-assembly.

I can't wait to get there Friday! :-D
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on July 03, 2011, 02:12:56 PM
GH, Budlight it is- but we both know that Jimmy will probably whip the FlatCad!


The  crank and rods came in, and they are stout, to say the least!

The car is in paint, and looks good from 10 ft, and better and 20ft, if you close one eye, and cover the other! Lol! It should look good at 150+ mph.... Damn thing has more runners than the Boston Marathon! :-o

The car is now being reassembled, so that I can take it to BoredandStroked's place, to receive the engine, exhaust,  and final plumbing.

The assembly will be a process- put it together, check every thing, then tear it down, send parts to Russ Meeks for coating, then assemble again. I think it will be worth the effort, in the long run.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: SPARKY on July 04, 2011, 12:19:58 AM
NOW that is a ROD  :-o
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on July 04, 2011, 02:29:14 PM


Yea, the rods are big- 8.75", and the crank has been stroked out to 4.625". With the 3.55" bore, we'll be running at 366 CI.

I wanted to do a lot more to the crank- lighten it, knife edges, etc., but money dictated this was what we could afford. Still, with the dry-sump, extra oiling, coated bearings, etc., I think it will be a formidable flathead!

On another note, I didn't like the front shocks, and ordered some 12/12's. There stiff as can be, and I like em! I also wanted to get the car a little lower, and not have such big tires hanging out there, and found some real nice 23's.

Oh, and the Jimmy cam blank showed up from Don Ferguson! It's the little things that excite me! :-D
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: GH on July 05, 2011, 12:54:36 PM
What are you doing with a GMC 302 camshaft? Here is the one Donnie Johanson did for me.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on July 05, 2011, 01:42:20 PM
Gary, that's sweet!

This winter, we're going to turn Pete's roundy-rounder into a blown, fuel/gas roadster, with a 12 port 302 Jimmy.

I guess we didn't think we were broke enough, or busy enough!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on July 05, 2011, 09:48:43 PM
Well, we spend so much time talking about the FlatCad, that I sometimes forget there are other Cadillac flatheads out there.

This is Garry Odberts Flatcad roadster, that will be on the salt this year. It's got a Procharger supercharger- way cool!

Thanks for the pics, Garry, and good luck! :cheers:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on July 08, 2011, 02:54:25 PM
Wow! Do you have any idea how hard it id to find a perfect grill for an old car??!! :evil:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on July 08, 2011, 07:14:23 PM
Okay guys- Here's a couple of 'spy' pics for the weekend!

It's getting closer! :-D
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Stan Back on July 08, 2011, 07:17:47 PM
Love that number -- is that the firing order?

Stan
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Elmo Rodge on July 08, 2011, 07:35:19 PM
Love that number -- is that the firing order?

Stan
Yes Stan. Yes it is.  :-P Wayno
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on July 09, 2011, 11:22:16 AM
Love that number -- is that the firing order?

Stan


Stan, I picked that ECTA number just mess with you!


....Or because I got confused and contacted the wrong person to get a number! :-D
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Milwaukee Midget on July 13, 2011, 06:48:00 PM
Buddy - Wow - with the fenders off, it has a profile that reminds me of a P-51 Mustang.

Paint a shark profile on it and the effect would be outrageous!

See you in about a month.

Chris
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on July 13, 2011, 09:18:16 PM
Chris, I actually photo shopped it with the Flying Tires shark mouth, and decided on the grill. I figured there's always next year....


Okay guys, Here's the car as I delivered it to BoredandStroked, in Ohio.

We didn't get done as much as I hoped in Missouri . I called and chatted with Bored&Stroked and Chris, and they put together a mini 'build team'. Awesome, huh?

BoredandStroked, Chris, - It was great to see you guys again, and chat. Thanks for rising to the occasion!



Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: SPARKY on July 14, 2011, 09:51:32 AM
Wow on my new wide scrren it looks m-u-c-h  l-o-n-g-e-r  8-)  what a bitchin looin ride shes gona be
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on July 14, 2011, 06:32:22 PM
Haha! Sparky, it's deceptive- it only has a 112" wheelbase.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Freud on July 14, 2011, 10:42:54 PM
It appears to me to be Humble Cad Racing.

Then when the flattie works well you can change the name to: A Caddy Hummer.

FREUD
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on July 17, 2011, 02:16:12 PM
Garry just sent me a note, saying he had fired his engine, and broke his cam in!


Great job Garry! :cheers:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on July 21, 2011, 08:25:23 AM
Things are coming together fast and furious now! The machine shop is almost done with the block and parts. Here is the final fitment of the heads, before they went to the shop to get o-ringed.

Plumbing is done inside on the oil and chiller system.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on July 21, 2011, 08:52:10 AM
Dale and 'crew', things are looking great!


Garry doesn't have much time for the Internet, so I told him if he sent me pics, I'd post them. Hey, his is a 'FlatCad' too!

Here are some shots of the hood and air duct in the making.


Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on July 24, 2011, 07:31:15 AM
BoredandStroked and the crew have been thrashing away at the car, waiting for the parts from the machine shop.

BoredandStroked finished the head flange area. This year, simple side exit zoomie style exhaust is planned- we just don't have time to do anything else.

Besides, we need something to do this winter, right? :-D
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on July 25, 2011, 08:07:41 AM
From BoredandStroked:

We pondered quite a few different configurations - but we really wanted something that will stand out and make a bit of a statement. We mocked up zoomies down low (like most folks), but this crowds the heads, the plug wires, etc.. We finally decided to make them high and out the side of the hood panels -- like a WWII fighter!


We completed both sides but have not yet cut them off to length - to match the angle of the hood sides. We created a jig that matched the hood line and after all our welding, we were upset - the big 2.5" zoomie on one side is 1/16 of an inch higher than the other side (measured from the floor) . . . we suck! Actually we were amazed it turned out that consistent. Good planning and making some crude jibs sure helps. Also having two guys to hold stuff, place tack welds, etc - makes the job even possible. There is no way in hell I could have done this by myself -- a BIG thanks to Chris!

...and this morning, from Jeff Fowler, Fowler Engines:

The heads are finished with resurface and o-rings. The block main saddle is finished as well as bored and honed. Now that I have the DFX file for the additional head bolts, we will set it up again and locate the bolt holes and set it up again and deck the block to get the piston protrusion. :cheers:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Rex Schimmer on July 25, 2011, 02:01:42 PM
Buddy,
With both the intake and exhaust ports on the same plane out the top of the block you really do have a "packaging problem". Your first try looks pretty good but I still wouldn't want to check the plugs if the engine was hot!! Please tell me that you are going to at least cut off the
extensions and put some short turn backs to get rid of the "tractor puller" look. Man you have lots of stuff to get done in the next 3 weeks! Hope to see you in August.

Rex
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on July 25, 2011, 07:23:12 PM
Buddy,
With both the intake and exhaust ports on the same plane out the top of the block you really do have a "packaging problem". Your first try looks pretty good but I still wouldn't want to check the plugs if the engine was hot!! Please tell me that you are going to at least cut off the
extensions and put some short turn backs to get rid of the "tractor puller" look. Man you have lots of stuff to get done in the next 3 weeks! Hope to see you in August.

Rex

Haha! Us western rednecks like tractor pullers! Actually, I thought it had the P-51 look going on. :evil:

Rex, I'm not sure if we are going to just cut them off, or turn them back. At the moment, the emphasis is just to get it running, and on the salt.

There will be plenty of time this winter, to repaint it, make tuned headers, front end body mods, etc.

Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on July 26, 2011, 08:21:10 AM
All that is left on the exhaust is the ceramic coating, and wrapping it.

The team debate now is about the length- some of us think they are fine, and some of us want to shorten them 'till the paint peals! :-D

Also, I'm looking into some kind of air deflector for the front wheels. I know the fenders are huge, and have a lot of drag based on their frontal area. Open wheels suck too! Anyone have any ideas???



Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: dw230 on July 26, 2011, 12:16:59 PM
What do you mean by air deflector? In Gas Coupe class you run with either fenders or not.

DW
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Rex Schimmer on July 26, 2011, 12:48:11 PM
Buddy,
You have so much to complete just to get to the Salt I can't imagine that you need to add to the list regarding better aero on the front.

But since you asked: I would move the shocks inboard, cut off those ugly front frame horns and add a nice panel to cover that area and I would take off the front brakes and add some no-rotating Moon disc to the inside of the wheels. Also look at a very narrow and small front tire.

Rex
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on July 26, 2011, 01:00:06 PM
Dan, Rex's answer is some of the info I was looking for. I'm looking for something to 'deflect' some of the drag on the front end- maybe something similar to the IRL cars, or maybe a partial front fender.

Rex, should the panel deflect just over the shock area, or over part of the front tire as well? We don't have time for this stuff at the moment- I'm making a list of all the things I want to change when time permits.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: dw230 on July 26, 2011, 01:34:46 PM
Reread your rulebook and check with your committee chair. In /VGC classes you cannot add any aero to the front. Do all of Rex's suggestions with the exception of the panel.

DW
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on July 26, 2011, 01:39:25 PM
Thanks Dan, but we switched to /BVGCC months ago! :wink:

Edit: Hmmm, does your statement apply to /BVGCC?
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Rex Schimmer on July 26, 2011, 05:36:46 PM
 Buddy,
Being that you are going to run BVCC and the rules allow streamlining in front of the cowl,and also a belly pan I would think that you could easily incorporate panels to cover the holes that cutting off the frame rails would leave. Again I would suggest moving the shocks inboard of the body just to get them out of the air stream. I think that you will find the front will like pretty stiff springs and having the shocks inboard will not have any affect on the straight line stability. As the rules for  BVCC state that streamlining in front of the cowl per section 4CC is acceptable I would look at making the front axle aero and even making aero "spats" for the front tires, if you really want to go all out. Again it is making a silk purse out of a sows ear, which you know your are already doing, but every thing helps.

Rex
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: dw230 on July 26, 2011, 06:40:57 PM
Just going by the threa dtitle.

/VGCC - I don't care about the nose from the cowl forward.

DW
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on July 28, 2011, 06:07:15 PM


Well, I've dreaded writing this, but I must.
 
The FlatCad will not attend Speedweek.
 
I apologize to all our sponsors, and everyone that worked so hard, and went way beyond themselves on this build. When we first decided to undertake this build, Pete told me we needed 4 more months for a build of this magnitude. I laughed, and said "don't worry!"
 
If anyone is to blame, it's me- guess I shouldn't have been so confident on such an ambitious build.I should have listened to experience, and planned accordingly.
 
We have agonized over this decision, and had many discussions on what we could do to salvalge it. Here is the plan.
 
The work will continue on the FlatCad, with the goal being WOS.
 
Pete has graciously offered the use of his 350, from his hotrod. I'm working on trying to get it from Elbe, Wa., to Columbus, OH., at the moment. If anyone is going this way, please holler at us!
 
We'll drop the SBC in the car, and head to Bonneville. We'll be able to get the car teched,shake the car down, and make our licensing runs. If everything works out, we'll be back with the FlatCad for WOS.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Milwaukee Midget on July 28, 2011, 08:01:13 PM
Buddy, I feel the pain.  

You've busted your collective keisters getting it to this point. My heart goes out to you.

I find myself in a similar situation, waiting on a crank that was supposed to be here by early spring, and watching the time evaporate like water on the salt.

The upside is that the car is essentially complete, which will give you time to look things over, make adjustments, and perfect what is truly one of the coolest looking '30's Chevy's I've ever seen.

It'll happen - and we'll see you on the salt.

Patience - not only is this the fastest sport in the world, in many ways, it's also the slowest.

Chris
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on July 28, 2011, 08:28:42 PM
Thanks for the kind words Chris!

While we are disappointed in not having the FlatCad ready to run, we are relieved to have the extra time to assemble and test the engine properly.

We'll go with the SBC, have some fun, learn some things, and then go to WOS to try and take care of business.

At the end of the day, it's not a life shattering deal-just a bump in the road.



I sure hope your crank shows up- otherwise you might have to take a lap in the '38 and drink beer with us! :cheers:

Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Jorge on July 28, 2011, 10:56:13 PM
Nice build! Sometimes its better to take a step back and do things the right way than to rush it and make mistakes. Ive never been a chevy guy, fords have ran in my family since the 50's, but i sure do like yours and im not talking out of my a$$ either. Good job and good luck.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Milwaukee Midget on July 29, 2011, 12:59:19 AM

I sure hope your crank shows up- otherwise you might have to take a lap in the '38 and drink beer with us! :cheers:


The only Chevy I'd ever admit to driving - except for my old Corvair (RIP).

You fly - I'll buy.  :cheers:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Drewfus on July 29, 2011, 05:17:40 AM
no, disagree, there's nothing wrong with aiming high, I don't know of anyone who has done big things who didn't aim big.

despite the emotional attachment, I think you've made a good call, and one that will allow you to 'hit the ground running' as such, giving you a chance to offer the best chance at success.

Hard decision, but props for doing so, some days you have to improvise, this is one of those days.

Cheers, Drewfus

Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: gearheadeh on July 29, 2011, 07:57:20 AM


Well, I've dreaded writing this, but I must.
 
 Here is the plan.
 
The work will continue on the FlatCad, with the goal being WOS.
 
Pete has graciously offered the use of his 350, from his hotrod. I'm working on trying to get it from Elbe, Wa., to Columbus, OH., at the moment. If anyone is going this way, please holler at us!
 
We'll drop the SBC in the car, and head to Bonneville. We'll be able to get the car teched,shake the car down, and make our licensing runs. If everything works out, we'll be back with the FlatCad for WOS.

Man I couldn't agree more with what a great compromise this is. You will have a much better time knowing that the bullet in the chamber is not made of such rare unobtainium as the Flat Cad!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on July 30, 2011, 09:19:00 AM
Guys, Thanks for all the support!



We built the car for a blown class over 175 mph. We will now be running in C/GCC, I think.

The only thing I've found we are not in compliance with is the fire system. I've contacted DJ Safety, and we'll take care of that.

Does anyone know if I've missed something?

Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Rex Schimmer on July 30, 2011, 11:18:10 AM
Buddy,
I certainly agree with everyone else, you are doing the right thing. You have to get the Cad on a dyno and do some development work on it so that you are ready when you show up at Bonneville. You have way to much time and money invested to blow it up at the salt because you couldn't get it on the dyno, and if you don't make the WOS you still have the BNIs in October. Don't rush it. Still looking forward to seeing you even with a SBC in the car.

Rex
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Freud on July 30, 2011, 12:46:37 PM
38flattie.......You are indeed fortunate that Rex has taken an interest in your bullet.

Listen closely to him.

FREUD
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on July 30, 2011, 01:18:58 PM
Believe me, Freud, I will!

...and I realize how fortunate I am that so many have taken an interest, and offered advice! Thanks everyone!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on August 02, 2011, 09:21:34 AM
Even though we're doing a heart transplant for SpeedWeek - putting in a SBC motor so we can shakedown the car, the drivers, get some licenses, drink some beer and have some fun (in no particular order, we're keeping the FlatCad work moving forward for WOS.

1) Adding Studs to the Deck: We wanted to add studs to provide additional clamping force for the heads. The FlatCad motor has come fairly large 'gaps' in the stud locations around the bore - so we're adding our own (obviously they're in the head designs). The best way to add the additional studs on the deck surface (we've added 7 per side), the block needs to be setup in a mill.

2) Valve Seat/Pocket Work: Also, while the block is in there, we need to do the valve seat cutter work. The valve angles on the FlatCad are about 6 degrees off of square (angled toward the bore), so it requires some special mounting blocks to set the valve angle. Fowler made the big aluminum blocks for the valve work - to get the block exactly right in the mill - you'll see them at the bottom of the picture.

3) Intake Girdle Plate Studs: You can't see it in this picture, but we're also adding five 3/8 studs (on each side) to hold the intake girdle and exhaust flange plate down. The plate is 3/4" steel and will hopefully provide some strength to the top of the block and it gives us a much cleaner way to setup the blower manifold, exhaust primary headers, etc..


4) New timing cover plate: Here is the new timing cover plate Dale designed, and Kevin is making for us.


Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on August 03, 2011, 10:12:16 AM
Headers are back from being coated for 2000 degrees. We wanted silver, but had to settle for black with the rush job.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on August 03, 2011, 11:16:42 AM
Progress continues- The timing cover plate is done!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Milwaukee Midget on August 03, 2011, 07:58:47 PM
You know, Buddy, if you're not careful, you might just have that Flatty ready and have to pull the small block! :-D

You're working a wise plan - see you in a few weeks.

Chris
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on August 10, 2011, 12:17:27 PM
Well, the car is as done as it will get, until after Speedweek! The SBC runs, all the bolts are tight, so in the trailer and off to the salt she goes!

I left Dale's Monday night, and the thrash continued! I hadn't been home for 5 weeks, so I needed to get home for a bit. I'm going to lay low at Speedweek, and save myself for WOS. I'll be at Speedweek for the opening weekend, then home home for some family time.

There was definitely some drama, with the clutch fork, driveline, rear end, and redo's, but progress was quick and neat. Swapping the FlatCad in will be fairly straight forward, and painless.

Unfortunately, we didn't get the bellypan on, or the car on scales. Licensing runs won't be fast enough to matter, but we will get these done before WOS!

Dale and Amy- Thanks for opening up your house and shop for us to complete this! You both are exceptional people and hosts, and the stay was great!

Mark and Chris- without Mark's incredible eagle eye, and Chris's attention to design detail, we wouldn't be headed to the salt. Thanks guys!

 Pete- thanks man! You're engine is in the car- see you this weekend!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on August 10, 2011, 04:51:16 PM
Everyone has been very helpful, and free with advice- Thanks! I sure hope to meet as many of you as I can.

If you get some free time at B'ville, give me a shout!

phone- 9seven0- 21six- 2nine07
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on August 13, 2011, 12:03:23 AM
Well, were on the salt!



We didn't get the car done, and had a choice to make- stay home and finish it, or finish it on the salt.We elected to finish it on the salt, so we spent the day thrashing on the car. We'll hit tech tomorrow, and see how we fare.

Today I met Rich Fox, Maguromic,  Rex Schimmer, and Tman. Rex said Sparky was running around somewhere, so tomorrow I'm going to try and find him and Rex.

Rich is our pushtruck driver, so we're going to try and out him to work tomorrow!

Here's a few pics from today's thrash!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: N.F.S. on August 13, 2011, 08:50:22 AM
Awsome ,you better post lots of pic's! :-D   :cheers:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on August 13, 2011, 11:05:12 PM
We did the driver's meeting, and rookie orientation this morning, so my helmut now sports a rookie sticker!

We thrashed all day, and finally got in line for tech. We should tech first thing in the morning, and get a rookie run in tomorrow afternnon, weather permitting. There is a 40% chance of rain tonight, but we ain't scared!

Met up with Stan Back today, and Doug for the Saltcat. Doug had just broke his engine. I'm not sure who was more disapointed- Him because he broke it, or me, because I really wanted to see the car run!

Sorry, but this is the only way I know how to post pics!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on August 13, 2011, 11:08:19 PM
a few more
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on August 13, 2011, 11:09:19 PM
Last pic is Rich Fox pushing us to tech!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 4-barrel Mike on August 13, 2011, 11:11:56 PM
Great pictures!

Good luck tomorrow!   :cheers:

Mike
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Milwaukee Midget on August 14, 2011, 02:39:11 AM
Best of luck - hope to see you Wednesday, if you're still there.
Still heading to the M.A.M.B. drags after this?
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: saltwheels262 on August 14, 2011, 08:45:57 AM


Sorry, but this is the only way I know how to post pics!

that must be the way to do it. the pictures look fine.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on August 15, 2011, 02:08:39 AM
Thanks Guys!

No Chris, I'm going to head for home, and some R&R!

Met some more cool guys today- Elmo Rodge, Freud, Ray the Rat,Big Tim, and Sparky. Stan Back and Rich Fox were there to TRY and keep us on the right course!

We got right through tech, and went to the rookie course. Of course, we had some rookie mistakes- one Driver went past the 3 mile under power, and another lost the door net rod on the return road. I got extremely hot when I was second in line, and bailed out of the car, saying Fiat this!

After I got cooled down, and received some advice from an angel( Jeanelle?) on the Hudson Boys team, I got through the rookie run. At the end of the day, Dale and I got our rookie runs done, and Pete and Chris will do theirs when it dries out.
I have to say, it seems surreal being here, amongst all the history, and experienced racers!

A few shots from the Rookie line- That's Pete getting strapped in!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on August 15, 2011, 02:10:16 AM
This is all for today- more tomorrow!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: N.F.S. on August 16, 2011, 06:04:39 AM
The car looks real good!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: GH on August 17, 2011, 11:44:27 AM
Buddy, I see in the results, they have you in XXO class, not TO, what's up with that.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Stan Back on August 17, 2011, 11:51:06 AM
He pulled two plug wires.  If he goes to Impound (not!), I'll bet they catch that.

GH -- PM sent.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Tman on August 17, 2011, 12:26:42 PM
Great to meet all of you!

I did miss Rich though and am bummed about that. By the time I realized it, you guys were off and running in the opposite direction of where we were!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on August 17, 2011, 12:40:15 PM
My pregnant daughter-in-law was having issues, so I made a flying trip home.

After an emergency C-section last night, here are the results!

Alexander Kolton (AK) Walker!

I'll post up answers to the above questions, and more pics( of B'ville), toninght.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: maguromic on August 17, 2011, 01:14:41 PM
Congratulations Buddy!!!  Tony
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Stan Back on August 17, 2011, 01:40:44 PM
You've had quite a week!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: RichFox on August 17, 2011, 07:15:06 PM
Buddy, I see in the results, they have you in XXO class, not TO, what's up with that.
He originally entered XXO and the SCTA data entry didn't pick up the change. Who cares? No harm - no foul
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: glc311 on August 17, 2011, 07:26:51 PM
Congratulations on the new grandson Buddy! Glad you had a good Speedweek too. Looking forward to seeing you with your Flat Cad at El Mirage soon.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Jorge on August 17, 2011, 11:07:45 PM
Congrats on the new edition to your family, maybe a future LSR racer  :-D !!!!! Hope all the hard work that went into the car payed off this past week. I lived in CO for 6 years, Northglenn Adams County area off of I25 and 120th, I would move back in a heart beat. Congrats again especially on the grandson, hope you daughter-in-law turns out fine.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: interested bystander on August 18, 2011, 01:07:07 AM
Anybody who's followed this build as got to be AMAZED at the fullfiment of nearly all th goals that Buddy proposed when the build first appeared on Landracing.

So many posters are of wannabees, neverbee bs artists and downright liars, but yrs truly has added you to his Land Race heros list! W/ Jack and Willie, etc.

And stay away from go kart racing in SoCal with the Road Runners.

I hear ther's a BOUNTY on ya!

Most important, Congatulations, DAD!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: maguromic on August 18, 2011, 01:14:16 AM
Having seen this car up close and looking at the workmanship, it is one very nice car.  One of my favorite vintage coups!!!  Funny thing is when I was talking to buddy at tech some guy was trying to buy his trunk lid off the car. Tony
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on August 18, 2011, 02:07:14 PM
 THANKS EVERYONE!  :cheers:

Wow! What a week!

Going to the salt for the first time is an overwhelming experience. When I first pulled unto the salt, and thought about the history, and those that had been here before me, I was amazed that I had made it here! I've never worked so hard to go so slow in my life! Lol!

We knew we had some things on the car to get ready before tech. We rolled in at 10:00 A.M. on Friday, and started thrashing on the car. We planned on going to Tech Saturday morning, but actually went Sunday morning. Thanks to all that came by, and pointed out little things we needed to do. Mark went and watched a couple of cars in tech, and came back with a few changes we needed to do.

Car rolled through tech with no problems, and we accomplished everything we set out to do. By the time we left, we had qualified 4 rookie drivers, received 2 class D licenses, and 1 class C license. The car ran a top speed of 153+ mph,with a 300hp Chevy 350, and handled great.

We wanted to try the car with fenders, and without, to see the difference, but just had to many issues to deal with, to get that far. Nagging fuel issues, several gear swaps, and lots of rookie drivers, took up a LOT of time!

The help and advice we received was amazing, and I can't begin to name everyone here. A special thanks, though, to Rich Fox, Jim Kitchen, and Don Ferguson. Rich was very patient, even though he had to be frustrated waiting on a bunch of rookies.Just to be able to hang out with Rich, after all his accomplishments, was VERY cool! Jim, your  continued advice, and support, was invaluable! Don, the gears you loaned us did the trick!

AND, I got home for the birth of my first grandson! So, now I have 3 grandchildren, 2 girls and a boy- what a way to end the week!

I want to thank everyone for all the advice, help, and support! It has, and does mean a lot, and is one of the biggest reasons we were able to attend Speedweek! :cheers:

 

Here are a few pics from course 3 on Tuesday.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on August 18, 2011, 02:08:14 PM
A few more...
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on August 18, 2011, 02:09:39 PM
...Last ones from this trip! I'll get more pics next time!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: rockstar on August 18, 2011, 02:24:08 PM
Hi,love the pic o your car in the above post,if you show it to someone with aero knowledge i would assume they could tell how good or how bad it is by the salt patterns around the car and might be able to help you get
better ( but what do i know any way),glad you had a great time and congrats on the new arrival to the family.

 David
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Stan Back on August 18, 2011, 02:37:14 PM
I saw the OHV FlatCad in inspection.  It was easy to find -- not because of the bright red paint job, but the line of drivers waiting to do their bail-outs.  (They're gonna havta look into charging extra for that.)  The lead inspector was telling Buddy what a great job they'd all done preparing the car.  He said it was unusual to find a new car so flawless.

Buddy -- what gear and tire and rear end got you (I hope it was YOU) over 150?

Stan
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on August 18, 2011, 02:38:04 PM
David, you're right. I spent time talking aero with Rex and Sparky, and both gave us good advice. You'll be seeing some major changes, in the front body area, and exhaust, as a result of those talks.

When Rick Fox first pushed me 'off of the fence', and I decided to go to Bonneville, honestly, I thought"how hard can this be"?

Well, after attending, I have a far better understanding, and a GREAT respect, for everyone that attends. Keeping the car or motorcycle running, fixing what beaks, etc., is hard enough. Those that are relentless enough to get records deserve super kudos!

I have a WOS pre-entry paid for, but won't be using it. I fully understand now, that we need more time to get the FlatCad engine ready, tested, and tested again, before taking it to the salt.

We'll slow down, and do this right. I don't want to take this engine out without being as sure as I can be, that we have done everything we can to insure the engine is right. I think that World Finals is the smart goal, and a better bet, to be where we need to be on the engine.

So, God willing, and a little luck, we'll see everyone at World Finals!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on August 18, 2011, 02:41:58 PM
Stan, I was home babysitting the oldest granddaughter when Dale ran 153+

28" tires, 4th gear in a Muncie, and 3.74 gears, at 7000 rpms did the trick. The car handled like it was on a string, so we're pretty happy!

I need to find a 'magic wheel'. I used a computer program, and we started with 2.74 gears. I talked with Don Ferguson, and he loaned us the 3.74's.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: maguromic on August 18, 2011, 02:48:45 PM
Sounds like you had a lot of fun. Tony
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on August 18, 2011, 02:59:04 PM
Sounds like you had a lot of fun. Tony

Tony, it was great meeting you-thanks for everything!

As for Speedweek, it was unbelievable -simply unbelievable!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Tman on August 18, 2011, 03:14:03 PM
Damnit, Tony was there and I missed him as well? I was sure to see some of his avatars as an entourage!?!?!??!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Stan Back on August 18, 2011, 03:57:36 PM
If you stayed at the starting line and watched every car run, you'd of only seen about 25% of them.  I'm surprised Tman found as many as he did as he didn't really know what most looked like.  That's the thing -- it's getting bigger every year.  Bigger than just the increase in entries which was negligible this year.  With four courses it's spread even farther.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Tman on August 18, 2011, 04:13:34 PM
If you stayed at the starting line and watched every car run, you'd of only seen about 25% of them.  I'm surprised Tman found as many as he did as he didn't really know what most looked like.  That's the thing -- it's getting bigger every year.  Bigger than just the increase in entries which was negligible this year.  With four courses it's spread even farther.

As you noticed Stan I ain't bashfull! :-D I walked into more than one pit and announced who I was and I was looking for so and so! :cheers: The heat and logistics kept me from hitting more pits.  I think I met a couple hundred folks from this board and the HAMB overall? Got a call yesterday from Aussiesteve and we realized we literally bumped into each other working with our separate teams staging!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: RichFox on August 18, 2011, 04:57:31 PM
I am another one who enjoyed his time on the salt this year. Met the Flat Cad crew. Hard to believe how well they work togeather. Met the Salt Cat guys. Took my record, but other than that seemed alright. Heard the Y block run. Don't get to hear open headers on a race Y block these days I saw the flat cad roadster but didn't see it run. Still, one of my best 4 day weekends.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on August 18, 2011, 07:52:18 PM
Rich, It was great having you hang with us!

Well, this was a lot of fun, but a huge learning experience! I know there are several things I want to change on the car, and on the engine. Some will get done before WF, and some will have to wait for this winter! Here are a few, and I'll be adding to the list.

1) The window tabs are huge and ugly- gonna change that!
2) The front frame horns have to go! (thanks Rex!)
3) tuck the shocks back behind the sheet metal! (thanks Rex!)
4) Change the exhaust-possibly/probably to the upper back side of the open tire (Thanks Sparky!)
5) rework a little intake porting, and get the block bench flowed.
6) depending on bench flow numbers, possibly a new cam
7) Try and get all sheet metal in front of the cowl, and below the hood replaced, for better aero ( you listening, John Kimbrough??!! I need your help!)
8 Fill tranny and rear end crossmembers with lead. I'd like to get rid of our weight bar rack. Probably add some lead to the frame, also.
9) Go through the Quick change. We found aluminum filings in it.
10) mount the 'chute up on the trunk, and get rid of the huge pushbar we have.
11) move the engine cooling tank to the rear ( Thanks Stan!)
12) install a small fan for the driver, for when he has to wait in the car.


Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Rex Schimmer on August 19, 2011, 10:29:16 AM
Buddy,
Great meeting you and glad to hear you got lots of runs in your car. Sounds like you will have all of the chassis bugs worked out when you return with the Cad bullet.

You certainly don't look old enough to have grand kids!!! Congrats!!

Rex
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: glc311 on August 19, 2011, 01:17:27 PM
Congratulations again Buddy! Please send me a picture of your car that you would like posted on the Road Runners "Cars" page. Hope to see you at El Mirage soon. - Jerry
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Milwaukee Midget on August 20, 2011, 11:09:49 AM
Buddy - so sorry I missed you - you blew out before I could meet you - I got there on Wednesday - but ohmygod - that car is absolutely stunning.  I'll drop you a PM when I get back to Beerhaven.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on August 20, 2011, 05:09:30 PM
Chris, I'm real sorry I couldn't hook up with you!


I've posted a bunch of picks about Garry Odbert's build, and blown Caddy flathead roadster.

Garry did very well, setting 3 records with his back up engine. Congrats Garry! :cheers:

3520  XXO     BSTR    Retarded Sparks Special; 126.467, 123.753, 126.983, 126.983
3521  XXO    BGMR    Retarded Sparks Special; 134.587, 114.357, 140.007
3524  XXO    BFMR    Retarded Sparks Special; 132.771, 141.648, 142.062, 142.062

Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Freud on August 20, 2011, 05:27:35 PM
38 Flat

THANKS for the hospitality.

FREUD
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on August 20, 2011, 05:32:47 PM
Freud, it was GREAT finally getting to meet you! I wish I would have had time to pick that amazing mind of yours!

I apologize it was so hectic when you stopped by- I know that the fact we were rookies showed.

Next time, I hope to have more time to get some feedback from you!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: GH on August 21, 2011, 09:21:35 AM
Buddy, too bad you didn't make it to the HAMB drags at Mo-Kan, you probably would have put it on me. I ran a quick 20.1 ET @ 78 MPH, boy was that a thrill. HaHa
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on August 21, 2011, 06:36:32 PM
Gary, that would have been fun!  :cheers:

Well, we're all back home, and now the thrashing starts for World Finals!

Dale is going to concentrate on assembling the engine, while I blow the bugs off of the car.

We had filings in the rear end, so I removed it today to get it 'freshened' up.I don't know if the guys that built it left filings in there, or if we spun a race or something. We'll find out!

Tomorrow, I'll pull the mag, carb, then the engine and tranny. I need to get the SBC back to Pete1.

I need to figure out how to lock reverse out on the Muncie M-21. I'll look at it tomorrow. Anyone know the easiest way to do this?


Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: BudJ63 on August 21, 2011, 06:39:25 PM
I need to figure out how to lock reverse out on the Muncie M-21. I'll look at it tomorrow. Anyone know the easiest way to do this?

Just take the lever off.  or..   I have seen shifters with a separate arm just for reverse. I can't remember who makes it.

Just remembered . It was the Vertigate that had the separate reverse shift handle.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: maguromic on August 21, 2011, 07:27:39 PM
Buddy, If you are using a Hurst competition shifter they make the reverse lockout with the lever you could add to your setup. Tony
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Stan Back on August 21, 2011, 07:36:34 PM
Concerning the rear end -- as my brother used to say -- "It'll either wear itself in or wear itself out."
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: saltwheels262 on August 21, 2011, 09:06:51 PM
38 f,

does the dash 6(?) line coming off the top of the rear end
go to a pump or a breather catch can?

beautiful car.

franey
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Buickguy3 on August 21, 2011, 09:29:10 PM
  Buddy,
   If I recall right, you can remove the reverse idler gear and there is no problem. If you need reverse on occasion, that won't work. Good to talk to you on the Salt. I could see that you were busy, so I didn't stick around.
  Doug
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on August 22, 2011, 08:48:48 PM
saltwheels262 , it's just a looped vent line, so that only fumes can escape.

Doug, Stan, you guys are right- I'll just remove the reverse idler gear.

You know, I still don't understand this fascination with the salt! I mean, when I was running a roundy rounder, there was excitement, competition, bumping and grinding, etc. On the salt, you drive in a straight line for a few miles, and you're done!

Boy, am I glad I told my wife it was a one time thing!

Anyway, I'm off to look at the rear end, and tranny,and  I'm still trying to figure the best place to relocate the front shocks, to get them inside of the front sheet metal. Oh, and I need to move the gas tank over, so I can fit the engine cooling tank into the trunk area.


...and them frame horns Rex told me about- gotta cut them off. I wonder if I replaced the front sheet metal...... :wink:

Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Tman on August 22, 2011, 10:34:12 PM
Buddy, about that salt thing. Just got off the phone with my pal Dave. Found out he is going out with a guy we know that runs a Panhead in October.....................looks like I am heading back!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Freud on August 22, 2011, 10:56:03 PM
Easier view.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Milwaukee Midget on August 23, 2011, 12:43:14 AM
I'm still trying to figure the best place to relocate the front shocks, to get them inside of the front sheet metal.

Buddy -

Have you considered lever shocks?  The rear shocks on an MGB or a Midget bolt inside the frame and have a very low profile link.  Parts # 1 and # 2 from the Moss catalogue -

http://www.mossmotors.com/Shop/ViewProducts.aspx?PlateIndexID=29025

I could send you one or two (or a dozen, for that matter) if you wanted to trial fit them.

Drop me a PM if you're interested.

Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Ron Gibson on August 23, 2011, 09:24:59 AM
Stan
Still trying to figure out if you are talking about hard metal parts or Tony's new avatar. LOL

Ron
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: jimmy six on August 23, 2011, 09:58:31 AM
38 f....I too wonder what the excitment is after 37 years of off and on going to the salt especially for those who don't have or drive a car/bike. (it would be easier to get a room too)
On the tranny I keep the arm on the shifter even tho there is no gear in the transmission so the shifter works properly for the spacing. During an inspection once I saw a metal strap fron the arm on the trans to a spot on the side cover. I thought that was an easy fix. ...Good luck and hopre to see you in October...JD
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on August 23, 2011, 02:18:18 PM
Chris, lever shocks may work, depending on if they can be made VERY stiff. I've got 12/12 shocks on it now, for very little movement. I'm not a big fan of very much suspension movement, at the speeds the car will run.

Jimmy, we're thrashing again, to make WF. I truly hope to chat with you there!

I've figured out that when Tony posts, views on that thread go up about a zillion%. I'm sure this is because of his valuable input, and not because of his avatar! :evil:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Milwaukee Midget on August 23, 2011, 03:42:29 PM
Chris, lever shocks may work, depending on if they can be made VERY stiff. I've got 12/12 shocks on it now, for very little movement. I'm not a big fan of very much suspension movement, at the speeds the car will run.

Buddy -

Moss offers a performance metering valve - a true bolt-on upgrade.  Additionally, Apple hydraulics rebuilds these things all the time, and can set them up probably just about any way you'd need them.  I went with the "Heavy Duty" rebuild option on mine.

http://www.applehydraulics.com/shocks.htm

Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: RichFox on August 23, 2011, 03:54:21 PM
I have rear lever shocks in my For Sale Vega. As I remember the heaver viscosity oil the stiffer the shock action. Also, if you came home with a brand new Craftsman 1/2 drive ratchet, It was mine.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Milwaukee Midget on August 23, 2011, 07:39:43 PM
As I remember the heaver viscosity oil the stiffer the shock action.

Very true - I loaded up the MGB shocks with a fairly heavy marine grade Castrol hydraulic oil, and while it rides like a lumber wagon, the thing cuts a corner like a razor.  Probably not the best thing to do for a street car, but on the flats, I'd think you'd be golden.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on August 23, 2011, 08:50:29 PM
Thanks Chris and Rich.

Rich, I'll as Dale about the ratchet. If he doesn't have it, I'll send you one, because I know we used it! Please send me your address.

Chris, that sure sounds like that may be the way to go. I looked, but I couldn't find the Moss  performance metering valve - do you have a link?

I'll shoot you a PM!

Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Milwaukee Midget on August 23, 2011, 11:52:53 PM
If it's British, I've got a link -

http://www.mossmotors.com/Shop/ViewProducts.aspx?PlateIndexID=29886

Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: manta22 on August 24, 2011, 12:00:27 AM
MM;

"I am not a number, I am a free man!"  .....from "The Prisoner", right?

Regards, Neil   (San Deigo, CA)
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Milwaukee Midget on August 24, 2011, 12:04:35 AM
MM;

"I am not a number, I am a free man!"  .....from "The Prisoner", right?

Regards, Neil   (San Deigo, CA)

:wink:  I've got the whole set on DVD. :-D

Always wanted a Lotus 7 . . .
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Peter Jack on August 24, 2011, 03:34:06 AM
Build a Locost and get the same experience for a lot less than the real thing. Most likely a better car too. :-D :-D :-D

Pete
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: SPARKY on August 24, 2011, 05:32:48 AM
The roadster guys 'ave a neat trick--they mount flat bar that attaches behind the front axle in its wind shadow, and pivitos on the chassis behind the grill shell and a spring shock mounts vertically in the center of the car left side springs the right side ect.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Richard 2 on August 24, 2011, 11:58:06 AM
The roadster guys 'ave a neat trick--they mount flat bar that attaches behind the front axle in its wind shadow, and pivitos on the chassis behind the grill shell and a spring shock mounts vertically in the center of the car left side springs the right side ect.
[/quote

Would like to see a picture of this set-up if any one has one.
Richard
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on August 24, 2011, 08:00:10 PM

[/quote
Would like to see a picture of this set-up if any one has one.
Richard
[/quote]

I'd also like to see a pic if possible- this sounds very promising!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Kiwi Paul on August 26, 2011, 12:43:21 AM
Add me to the list--my Comp Coupe needs this, I think....
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 4-barrel Mike on August 26, 2011, 01:17:27 AM
Different but interesting, thank you Mr. Fox! (posted here some time ago)

Mike
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Rex Schimmer on August 26, 2011, 02:13:06 AM
Buddy,
Since you are going to run in a class that allows almost anything aero in front of the cowl, note the cross steering link on Rich's car, aero tube, also note the non rotating inter wheel covers. Both good ideas.

Rex
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: RichFox on August 26, 2011, 03:33:18 AM
You will note that my rockers pivot on the toursion bar ends.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Dr Goggles on August 26, 2011, 04:42:46 AM
Hey Buddy was good to catch up on the lake........car looked great , we'll meet again my friend.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Kiwi Paul on August 27, 2011, 12:09:26 AM
Rich--I presume the torsion bar itself is inside the top frame tube? I will have to fab something a bit different, but a good idea, Rich......PS; Mike...The raffle tickets WERE in my wallet, and I did have the winning ticket.......OH WELL... :? :-D 
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Elmo Rodge on August 27, 2011, 12:21:29 AM
Rich--I presume the torsion bar itself is inside the top frame tube? I will have to fab something a bit different, but a good idea, Rich......PS; Mike...The raffle tickets WERE in my wallet, and I did have the winning ticket.......OH WELL... :? :-D 
That's OK Paul. You can wallow in the fact that you were a winner and helped a great cause. Perhaps you can wrest some comfort from the fact that I had a P-38 Porter reserved for you but as usual, we never met up. Perhaps next time.............  :cheers: Wayno
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: RichFox on August 27, 2011, 04:29:32 AM
The bar runs alongside the tube, and has a small rocker arm adjuster on the other end that works against a pad on the tube
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on August 27, 2011, 10:10:12 AM

1) The window tabs are huge and ugly- gonna change that!
2) The front frame horns have to go! (thanks Rex!)
3) tuck the shocks back behind the sheet metal! (thanks Rex!)
4) Change the exhaust-possibly/probably to the upper back side of the open tire (Thanks Sparky!)
5) rework a little intake porting, and get the block bench flowed.
6) depending on bench flow numbers, possibly a new cam
7) Try and get all sheet metal in front of the cowl, and below the hood replaced, for better aero ( you listening, John Kimbrough??!! I need your help!)
8 Fill tranny and rear end crossmembers with lead. I'd like to get rid of our weight bar rack. Probably add some lead to the frame, also.
9) Go through the Quick change. We found aluminum filings in it.
10) mount the 'chute up on the trunk, and get rid of the huge pushbar we have.
11) move the engine cooling tank to the rear ( Thanks Stan!)
12) install a small fan for the driver, for when he has to wait in the car.


Thanks everyone!

Dr Goggles, it was a pleasure meeting and chatting with you. I'll see you next time!

In addition to the above, there will be quite a few more changes coming, one of which is inner wheel covers. ( thanks Rex!)

We're still waiting on the machine shop, but I really want to go to World Finals, and get this engine on the salt. I'm going to run a dual carb setup, and set the Enderle injection up this winter. The car will be far easier to tune this way, at least for me.

This engine will be torn down this winter, and we will check the wear. I'll get the block on a flow bench, and see if the flow numbers match our cam. A new cam may be in order.

When it's all said and done, this will be our back up engine for next year. I've been looking at a port modification for some time now, that I believe will greatly increase the flow.I'm also going to try it with reversing the intake and exhaust ports- there are some real advantages there, if one really looks at the block.   I'm going to follow up on this, this winter, and see if it proves out on the flow bench. I'm positive it will! If it does, we'll use the new design, with a roller cam, as our primary engine. I'm real excited about this one, because it has real hp possibilities!

This engine will also run on fuel,and unblown, as there are a few records i want to chase-at

Bonneville, /VFCC- 157.496 MPH, /VGCC- 154.245 MPH, /VGALT-154.103,  and  El Mirage, /VGCC-159.574, /VGALT-158.422, and the one I REALLY want, /BVFCC- 195.524

When I run the numbers, I'll need about 670 HP for the /BVFCC class- Guess we'll see!

I know there are a couple of open records out there, and we'll run on them. Honestly though, that's pretty meaningless to me. It's like taking first place in a one man marathon- you're glad you finished, but it's hard to lose! We'll set our goals high, and see what happens- it's bound to be a fun journey no matter what!


Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 4-barrel Mike on August 27, 2011, 10:42:11 AM
PS; Mike...The raffle tickets WERE in my wallet, and I did have the winning ticket.......OH WELL... :? :-D 

The club treasury appreciates the donation!  :cheers:

Mike
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Kiwi Paul on August 28, 2011, 12:44:36 AM
Wayno, the closest I got were Bear Hugs from Mike and Greg W......I`ll get some of that Porter yet...  :-D
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on September 01, 2011, 01:16:44 PM
Well, hopefully the engine will be back from the machine shop in about a week.

The pistons have been installed, and deck height checked. We ordered head gaskets .010 too thin, so I'll have to order some more.

Jeff's mocking up the blower drive, to finish that and the crank snout.

Just found out the plan was for 1.78 exhaust valves, which are too big. Hopefully, it's not too late to switch to 1.70 :?



Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Milwaukee Midget on September 01, 2011, 01:44:22 PM
We ordered head gaskets .010 too thin, so I'll have to order some more.


There's a key problem with building something out of the ordinary.  If I could make 'em all fit, I could probably build an entire engine out of specialty parts I've ordered that weren't quite right.  :cry:


The cut on the piston is interesting - about how far down does the ring land sit with respect to the relief cut? 
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: maguromic on September 01, 2011, 01:58:44 PM
Buddy, That engine looks cool.  I don't know how much boost you plan on running or the RPM you are going to spin this beast, but I would machine the block and heads for dowls to keep the head from walking. Also I would run double keys on the crank snout. Tony
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on September 01, 2011, 02:27:22 PM
Chris, the top of the upper ring is about .125 below the bottom of the cut (at the deepest point) – which puts it about .100 to .125 below the transfer relief. We wanted to make sure it was more than what most consider to be the minimum away from the relief floor which is .0625


Tony, dowels and a double keyway are on the list. We are looking at about 14 lbs max,for now, with 5000-5500 rpms, depending on where the dyno shows the power curve is.

Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on September 02, 2011, 07:55:59 PM
Here are some pictures of the front crankshaft snout support - will give you a good idea what the '4th main' is all about. The blower crank hub is extended past the blower pulley - and has a machined surface that a big roller bearing goes over. There is a big roller bearing that slides over the snout and is held in place by all the rest of the aluminum hardware, bolts, etc..

Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Milwaukee Midget on September 02, 2011, 07:59:38 PM
Here are some pictures of the front crankshaft snout support - will give you a good idea what the '4th main' is all about.

 :cheers:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Tman on September 02, 2011, 09:26:09 PM
The front of that thing is crazy! :cheers:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on September 08, 2011, 10:26:21 AM


Hi guys!
 
Well, the machine shop is done with the engine, but now so is the bank account! I just received the invoices, and it ain't pretty! There is no way for me to finish this and get it back out this year, with the additional charges. It appears that the Flatcad just wasn't supposed to see the salt this year. Everyone worked so hard, I really hoped it would come to fruition.
 
I guess it gives us something to shoot for next year, huh?
 
So, on to plan B again! I get off of work on September 22nd, and will return home and spend the weekend with the family. Then, I'll head to Ohio to gather up parts- I have them scattered in several states at the moment!
 
I'll use the long(?) winter to get the engine assembled, and tested. One of the things I want to do, prior to assembly, is get the ports on a flow bench. I'll then send the flow numbers to Dema Elgin for a cam recommendation. If our current cam falls outside if his recommended specs, I'll have him grind a new one. He's got a ton of experience with these vintage engines, so I trust his recommendation.
 
Once the engine is together, John Beck is going to put it on his engine dyno. John built the engine in the 300 mph world's fastest roadster, and several other record setting cars. He's also knows and understands mechanical injection, and has agreed to get this thing set up for us.
 
When it's all said and done, it looks like the May meet at El Mirage will be our inaugural run!
 
I addition, I have an idea on a different port design..I'll be cutting up a few blocks, and if it pans out, assembling an engine with the new set up.
 
There's a LOT to do on the car, mechanically and aerodynamically. In addition the the list I posted earlier, a dry sump for both the QC and the tranny are in order. John Kimbrough is going to try his magic on the front end, basically reshaping it from the cowl forward. I've asked him to try and make bolt on mods, so that the altered class is still an option.
 
Guys, I can't begin to express my gratitude for all the input and support!  I can't wait to see you all on the salt next year!
 
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: SPARKY on September 08, 2011, 10:34:25 AM
WOOW  :cheers:  :cheers:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Milwaukee Midget on September 08, 2011, 04:42:12 PM
If it were cheap and easy, everyone would be doing it.

Take your time, get the finances straight, find out what the engine's putting out, chose your gears, and keep it between the baloons.

You know, it's been a while since I've been to Elmo . . .  :roll:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Stan Back on September 08, 2011, 04:49:25 PM
Well, Chris, I was going to encourage you to do so.  I looked up the I/GT record and was surprised to see it was 107+.  I sure wouldn't call that soft.  Of course, you'd have to be an SCTA member to compete {unless, I guess, you could get an SCTA driver to do the deed for you (hint, hint)}.

Stan
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: desotoman on September 08, 2011, 05:43:12 PM


Hi guys!
 
Well, the machine shop is done with the engine, but now so is the bank account!
 


Buddy,

Very understandable. If you don't do all the work yourself on these vintage motors it can cost cubic $$$$$.(Not that it doesn't anyway)  You are doing the right thing IMO. Get things sorted out and come out strong in 2012. I wish you the best.

Tom G.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on September 08, 2011, 08:16:18 PM
We can do everything ourselves, except for the engine machine work. This one cost me more than 4 times what the average machine work costs for my engines .

We still working on it, trying to get all of our 'hit' list done before next May. I learned this year, that it may seem like a long time, but isn't.

John is working on a new 'nose' for us, and needs some blackline drawings. Here is what he sent me: have a black line drawing to start with. What I need is a view from either
side, dead on from the front, and if possible straight down from the top. Not
a complete detailed drawing but rather something that gives a good view with
enough detail so that we have an idea of what the car will look like after
modification.

I'm sure he's not the only one that works this way. Where do you guys, that can't draw (like me!)
get these from?

Thanks in advance!

Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Peter Jack on September 09, 2011, 01:29:03 AM
Why not take photos then trace the photos and send him both the photos and the tracings. 8 1/2" x 11" photos can be printed on an ordinary printer if you don't have a photo printer. You should be able to easily extend the tracings if you're looking for a longer, sleeker nose.

Pete
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Tman on September 09, 2011, 10:11:20 AM
Tracings and a light table.................dont have a light table? Then tape things up to a window and trace. Be sure to do this in the DAYTIME :-D
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on September 09, 2011, 09:51:29 PM
Thanks guys!

We need drawing a little more technical than I can trace.

Tony hooked me up with a gentleman, who is going to do the drawings for John, and discuss aero with him. Funny thing, he mentioned the air behind the tires, the same as Rex and Sparky did! I keep wanting to fix things in FRONT of the tires- guess everyone is right- I AM back asswards! :-D
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Peter Jack on September 09, 2011, 10:11:36 PM
Look at Sparky's signature line authored by Pork Pie. There's an awful lot of truth there especially because we always look at the front.

Pete
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: RichFox on September 09, 2011, 10:54:16 PM
In the Flatcad classes your pretty limited to the front for big changes
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Pete1 on September 09, 2011, 11:10:37 PM
Thanks guys!

 I keep wanting to fix things in FRONT of the tires- guess everyone is right- I AM back asswards! :-D

The air in front can be diddled with also.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: maguromic on September 10, 2011, 01:12:51 AM
How you close the air behind you is very important, but what you do in the front also influences how that air is going to close behind you.  Buddy, you are doing a fantastic job on your car, and I am sure by looking at all the details you will reach all your goals. I am also glad that my friend was able to help, he is really a closet salt junky.  Tony
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on September 16, 2011, 10:09:13 AM
Tony, thanks again! I'm really looking forward to his input, and making the changes.

The engine is coming out of the machine shop today, so look for updates real soon! :-D
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: maguromic on September 16, 2011, 10:33:01 AM
Buddy, He is a great guy and I think at last count the cars he has pened hold about 25 records with the majority over 200.  Tony
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on September 18, 2011, 07:37:18 PM
Tony, I'm very excited about his participation-thanks again! :-D


All right, let the fun begin!

Dale started port matching the top 'girdle' plate today. The top plate will serve a couple of functions- one is to tie the engine sides together, so that we don't 'split the engine. The other function is to give us a good way to bolt the intake and exhaust to the block.




Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Milwaukee Midget on September 18, 2011, 11:16:56 PM
Buddy -

Every single piece you bring to this build is just mindboggling.  This is like building a Tomahawk missile out of a flintlock.

I can't wait to hear it!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Tman on September 18, 2011, 11:18:53 PM
Buddy -

Every single piece you bring to this build is just mindboggling.  This is like building a Tomahawk missile out of a flintlock.

I can't wait to hear it!

I prefer my Flintlock! But the hardware here is some serious cool stuff!

Buddy, you get bored with doorslammers just let me know how much room we need in the lakester ;)
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: maguromic on September 18, 2011, 11:50:59 PM
Buddy, That looks great, I cant wait to see you guys run that beast.  Tony
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Peter Jack on September 19, 2011, 01:09:45 AM
This is a fascinating build from a really talented bunch of guys. Keep up the great work.

Pete
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: BoredAndStroked on September 19, 2011, 10:53:14 AM
Intro:  From a Fellow FlatCad Team Member

Hey Guys . . . just thought I'd introduce myself . . .  I'm 'Dale' that has been working with Buddy on the FlatCad engine for the last year and helped get the car on it's 'shakedown' runs at SW in August.   It is really exciting to be at the stage where I am down to the details, working through the final porting work and to start putting the engine together.  A tremendous amount of custom design/engineering and manufacturing has gone into this beast - top to bottom, everything has changed from stock.   Just wait until you see what this thing looks like in 'Full Dress'! 

If anybody has any technical questions on the engine design or build, feel free to ping me - will share what makes sense.   Buddy and I have been willing to share just about everything we're doing (we keep a few things in our pockets, but not many).   The whole Bonneville community has really embraced and helped us - want to give you ALL a big thanks and give back whenever possible.

I plan to complete the port matching and contouring work this week and get into the detailed lower-end work.   I'll make sure that Buddy has all the pictures he needs to keep the posts alive and up to date.

Have a great week!

B&S
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Elmo Rodge on September 19, 2011, 11:00:32 AM
Good morning Dale and welcome to the forum. It was good finally meeting you at Speedweek after all these years.  :cheers: I'd love to sit and chat but I'm heading out the door for Cook's Shootout.  :-D Later. Wayno
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Tman on September 19, 2011, 01:21:02 PM
Welcome Dale! :cheers:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on September 20, 2011, 12:49:23 PM
One of the concerns I have is the cam selection. There really isn't any info out there on these engines, so the selection we made is really the proverbial 'shot in the dark'.

When I was on the salt, I was able to speak to several guys running vintage engines. The name Dema Elgin came up time and time again.I just had a long talk with Dema, about engine details, our goals for the engine, etc.

To make a long story short, we're going to ship the cam and a couple of lifters to Dema. He's going to plot it against his recommendation, and let us know where we are. I have another blank, so if it's needed, he'll grind us another cam.



Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Freud on September 20, 2011, 01:12:41 PM
Just like women and shoes, You can never have too many camshafts on the shelf.

Order more blanks.

FREUD
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Milwaukee Midget on September 20, 2011, 07:52:01 PM
One of the concerns I have is the cam selection. There really isn't any info out there on these engines, so the selection we made is really the proverbial 'shot in the dark'.

When I was on the salt, I was able to speak to several guys running vintage engines. The name Dema Elgin came up time and time again.I just had a long talk with Dema, about engine details, our goals for the engine, etc.

To make a long story short, we're going to ship the cam and a couple of lifters to Dema. He's going to plot it against his recommendation, and let us know where we are. I have another blank, so if it's needed, he'll grind us another cam.

Thinking out loud - throwing out a few thoughts - and, of course, it's easier spending your money than mine.  :-D

Stop me if I'm off the rails

Despite these great looking ports, it is an arduous flow path, both in and out of this monster.  Flow testing the block would likely get you some additional info that your cam guy can use. 

I'm looking at the firing order with respect to the exhaust opening and closing events (1 8 7 3 6 5 4 2), it looks like the 3&5 and the 6&4 could be a problem . . . Thinking overlap, your high pressure in the center shared exhaust port might not let you fully evacuate the 3 and 6 cylinders. 

As the 3 exhaust is closing, the 3 intake is beginning to open.  At about that same time, the 5 exhaust is opening, flooding the shared exhaust port, raising the pressure in the exhaust port and not permitting the # 3 chamber to completely evacuate - and possibly forcing some of the exhaust into the intake port of the number 3 cylinder (bigger valve, path of least resistance).

Some of the interaction might be able to be minimized by designing timing events into the cam that limit the duration that both the 3&5 and the 6&4 exhaust valves are open simultaneously. 

I'd also be looking at anti-reversion valve designs, if possible. 

I know you're supercharging this thing, and that negates some of the interaction.

By the way, Elgin makes some superior cams for the A-block, and I'm pretty certain he's familiar with some of the scatter pattern concepts.

Just riffing -

My 2 cents - worth about half that . . .

And I'm loving this build!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on September 20, 2011, 08:17:32 PM
Chris, your line of thoughts are not much different than mine!

A few posts back, I mentioned that I would like to get this on a flowbench this winter. I've been thinking about this for some time, for a couple of reasons.

1) Everyone that I know that does port work, has at one time or another, voiced a similar fact- what they thought they knew about porting went out the window when the got their first flowbench! Don't get me wrong- Dale put an extreme amount of time in porting this thing, and it's bound to flow more than it did. The problem is,what does it flow? I think we really need to know this, to pick the cam that will give us the most power

2) Joe Abbin did the only flow work that's been done on the block, and with some port work, ended up with numbers barely better than a ported Ford flathead. Garry Odbert, who had the Caddy flathead powered roadster, ported and flowed his block, although not the same one he ran this year. Garry did minimal port work, based on the way that Mondello ported heads. Garry got about 14% more flow than the block I had at Abbins'.

So, have we maximized our flow potential, or just made it look pretty, with some improvement? Who knows! I do know that I haven't found anyone that is willing to flow this thing for me. I really want someone that's not associated with the build, and has no agenda.

The siamesed ports are a problem, as you well know. I talked to Dema Elgin at length today, and he is going to give me his recommendations on how he feels we should proceed. We may, in the end, try several different things, until we are satisfied that we've done all that we can do. I do have great confidence, that turning to Dema Elgin was beneficial to the build. I think this build has proceeded far beyond being content with 'gut feelings', and should proceed with decisions based on hard numbers.

The other big think Mr. Elgin was adamant about was our exhaust. He feels, and I can't argue, that we need to have a smaller,'tuned' set up, that will be of benefit to our power curve.

Oh yea, he didn't like my blower choice either! He feels that it takes far to many HP to operate, and a centrfigul blower would be a better choice. I can't argue, but the 6-71 is staying!

It's a Dodge good thing winter is coming, and not spring!

Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Tman on September 20, 2011, 10:46:57 PM
We miss you in the chat :cry:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: desotoman on September 20, 2011, 11:59:35 PM
Buddy,

Put the parts you have together and get the motor on a dyno. Work with what you have. You will learn a lot. Second motors are always better than the first one, but it takes the first one to learn from. R&D isn't cheap, but you always learn from the past.

Flow benches are nice don't get me wrong, but just because you get more air flow does not equate to usable HP and torque. When I was working on my Flathead project, Mark Dee's asked me if I saw any airflow over the top of the valves, when I told him I did he told me that it was impossible. I asked why and he told me he had hired a guy to flow a Flathead head and there was never any flow over the top of the valve. Once I saw the head I understood why they did not get any airflow over the valve. My point is nothing is cast in stone, different chambers will flow different and that is not necessarily bad. It is the end result that counts, and that only comes from R&D.

I hope this helps,

Tom G.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on September 21, 2011, 06:19:36 AM
Tom,

What you say makes sense, and is the feeling of several of my team mates. I guess I want to achieve perfection, and in reality, that won't happen!

Car to share the head design that allows for flow over the valves? Email me pics, maybe? :-D

Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Milwaukee Midget on September 21, 2011, 10:41:09 AM
Buddy,

Put the parts you have together and get the motor on a dyno. Work with what you have. You will learn a lot. Second motors are always better than the first one, but it takes the first one to learn from. R&D isn't cheap, but you always learn from the past.

Flow benches are nice don't get me wrong, but just because you get more air flow does not equate to usable HP and torque. .


Tom, there is validity to you point, and on an engine that can be readily had, or had more of a racing pedigree, I'd agree with you.

My disagreement is tactical.

Last week, the Montana Dodge Boys build gave out before they could turn it around to back up a record.

Gary and Mikes Straight 8 Buick also comes to mind - they windowed the block on the dyno, and then again on the salt.

In all three cases, Flattie's included, we're talking about vintage castings, all of which are getting harder to source, and despite prep and cautions, are working well beyond their design parameters.  They simply may not have that many passes in them, and a second motor, at least with respect to engines like this, becomes increasingly expensive to build.

IMO - and it's opinion, nothing more - tactically, I'd plan on getting only four runs out of it - a dyno day, a pass for class, a run and a back-up.  At that point, ALL other runs are bonuses.  In short, you need to achieve the goal before you wear it out.

In order to do that, it's got to be right, and right out of the box.  True, a flow bench doesn't guarantee more HP, but it can reveal mistakes and aid in proper cam design and header sizing for the particular application before you ever turn it over.

I've said "It's all a grand experiment", but a successful experiment minimizes the variables. 

I think flow benching should remain on the table. 

So there - two ways to skin a cat.

That's 4 cents I'm up to - this is breaking my race budget . . .
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: desotoman on September 21, 2011, 01:50:56 PM
Tom,

What you say makes sense, and is the feeling of several of my team mates. I guess I want to achieve perfection, and in reality, that won't happen!

Car to share the head design that allows for flow over the valves? Email me pics, maybe? :-D



Buddy,

We all want to achieve perfection, nothing wrong with that. But IMO perfection only lasts until a part or technology is improved upon. So we may achieve perfection at a given point in time, but time marches on. I hope that makes sense.

I will share mine if you share yours. LOL.

Tom G.

PS. I am not against flow bench testing, just saying there are many ways to achieve the same results.

Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on September 21, 2011, 02:45:12 PM
Guys, you all have valid points, and I appreciate the thoughts.


Whan I was building the first FlaCad,and was indecisive as to what I wanted to do,  Rich Fox eloquently told me to quit talking about it, and do SOMETHING! Lol-I ended up with a LSR car!

I'm kind of in the same boat again. So, here goes!

We're going to assemble the engine, and get it over to John Beck in Chico, California. John is going to test and tune the engine on the dyno. If it makes the 500 hp I'm looking for, we're golden for now.

If it doesn't make 500hp, we'll tear it down, put it on the flow bench, design a roller cam, and see what we can do to get the 500hp.

So, if anyone is around, and wants to see the FlatCad fire up, B.S., or have a beer, I'll be in Chico Oct. 24-26th.

Tom, you have a Pm! :-D

Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: desotoman on September 21, 2011, 02:54:16 PM
Buddy,

Put the parts you have together and get the motor on a dyno. Work with what you have. You will learn a lot. Second motors are always better than the first one, but it takes the first one to learn from. R&D isn't cheap, but you always learn from the past.

Flow benches are nice don't get me wrong, but just because you get more air flow does not equate to usable HP and torque. .



Tom, there is validity to you point, and on an engine that can be readily had, or had more of a racing pedigree, I'd agree with you.

My disagreement is tactical.

Last week, the Montana Dodge Boys build gave out before they could turn it around to back up a record.

Gary and Mikes Straight 8 Buick also comes to mind - they windowed the block on the dyno, and then again on the salt.

In all three cases, Flattie's included, we're talking about vintage castings, all of which are getting harder to source, and despite prep and cautions, are working well beyond their design parameters.  They simply may not have that many passes in them, and a second motor, at least with respect to engines like this, becomes increasingly expensive to build.

MM,

I am very aware of the problems with vintage castings being fragile. But that is part of the fun in working with them. The Block is the weak link, and that is why it is a vintage class. I agree with what you have said so far, with one exception, it is actually easier IMO to get a block for a vintage engine nowadays with the internet, than it was say 15 years ago.

Tom G.

Quote from: Milwaukee Midget
IMO - and it's opinion, nothing more - tactically, I'd plan on getting only four runs out of it - a dyno day, a pass for class, a run and a back-up.  At that point, ALL other runs are bonuses.  In short, you need to achieve the goal before you wear it out.

In order to do that, it's got to be right, and right out of the box.  True, a flow bench doesn't guarantee more HP, but it can reveal mistakes and aid in proper cam design and header sizing for the particular application before you ever turn it over.

I've said "It's all a grand experiment", but a successful experiment minimizes the variables.  

I think flow benching should remain on the table.  

So there - two ways to skin a cat.

That's 4 cents I'm up to - this is breaking my race budget . . .

MM,

I guess I did not explain myself very good. There are a lot of new parts some proven some not, made for this engine. When I suggest putting the motor on a dyno, what I did not make clear was the fact that I would not go for broke on making the most HP I could in the first run on the dyno. Instead I would run a low boost setting on the blower at let's say 5 lbs positive. Then I would work from there, and make sure the motor is happy. You also find out how the new components are working, and making sure they don't have any problems. After everything checks out OK, then you can decide what you want to do on Boost settings etc.

I do disagree with you on only getting 4 runs out of a motor. If I really thought that is all I could get out of my Flathead, I would have never ever started building one in the first place. Playing with these motors is a balancing act. IMO Detonation is your biggest enemy when running vintage blocks, and when you detonate you will find the weak link. That is why you need the dyno time.

I do agree with you on "It's all a grand experiment", but that is part that makes it fun. It is all about building a better mouse trap. A very expensive mouse trap. LOL. I hope this reply has made my first reply a little clearer.

Tom G.

Buddy, I just spent too much time on this post not to post it. LOL

MM, this has been a good discussion.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on September 21, 2011, 03:26:23 PM
Wow, Both of you guys bring up excellent points.

I agree that blocks are getting hard to find, and like everything else, they cost more now.

Chris, we may not even get 4 runs out of this block, but like Tom, I would not have built it if I really felt that's all I could get. We've taken extreme care to strengthen, modernize, and upgrade the engine, to give us the best chance of keeping it together.

Still, 'the best laid plans', and all....

Detonation is a big concern with the huffer, and hopefully the chiller will do what I'm counting on, and help us keep things manageable.

The main reason I'm dragging all this stuff to California, is to get the benefit of experience and knowledge that John Beck brings to the table. Like Tom suggested, we'll start with low boost, and work our way up.I'm sure John will be able to point out areas that need work, and the areas that are sufficient- at least that's what I hope for.

In the end, no matter how the engine performs on the dyno, it all could be a moot point. I saw a lot of very experienced builders, both blue collar and big money, have disappointing times on the salt.

In the end, the only thing that really matters is,can we survive 'the great white dyno'?
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Buickguy3 on September 21, 2011, 11:21:35 PM
  Each time we go it's with the caveat: Run what ya' brung, Break what ya' brought. Don't think we have ever returned home without something to rebuild. In racing you build it as good as you can, and break the weakest link. As George W. said, "This is not rocket surgery".
   Doug  :cheers: :cheers: :cheers:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: SPARKY on September 22, 2011, 09:12:24 AM
Wow   :-o  :?  I thought that my design critera of 10 (20 passes) min. at WOT was wild!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: GH on September 22, 2011, 10:30:52 AM
MM, the 1950 Buick straight  eight had run on the salt, Maxton Mile, and on the street for quite a few years until we started making more boost. That's when we started have problems, we repaired the first window with a steel plate bolted to the block. The second window, very large, was the straw that broke the camels back, so to speak. Mike is in the process in building an other engine, so maybe we will return next summer. I love these old things, as you probably know, I have built a street driven GMC 6 banger.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Milwaukee Midget on September 22, 2011, 11:43:27 AM
Part of my "tactical" thinking is that if you set the build standard and research level high, but keep the durability expectation low, you'll either be right, or pleasantly surprised.

It's the pessimist's credo.  :-D

Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Bob Drury on September 22, 2011, 11:20:49 PM
  Let's see, Vancouver, Wa. to Chico, Ca............... let's see here, that's about a eight hour drive for a cold beer................  hmmm..................  by gosh, that might work............. :-D :cheers:
  For Christ sakes, don't break that dyno, I think they want to go 400 with that roadster........
                                                                  Bob
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: maguromic on September 23, 2011, 12:29:25 AM
Buddy, On the old iron as the boost goes up the cylinders will go out of round and their ugly head will pop up.  You can  control some of this by posting the cylinders (you need be precise on this) will keep the windows closed on the block.  This is what we are going to do on the GMC.  Also what is your piston speed? Tony
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: jimmy six on September 23, 2011, 01:29:57 AM
Geesh. . . . . . .  I get 2 runs on my GMC then its tear down time; that's why I unload it ready to qualify if I can.

Joe and I never got more than 2 in a row with the pan off in impounds everytime. We made 3 runs for five years straight but the head and pan were off after the first one, once with 11 bad valves.

Hey my son wanted a "hat" (and I didn't even have one)........................JD
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on September 23, 2011, 11:08:33 AM


Doug, we expect we'll have to repair something, but like everyone else, we just hope it isn't catastrophic! Major congrats on the new records at WOS- you guys rock!!!! :cheers:

Gary, did I hear a 'return to the salt' mentioned? That would be great! :cheers:

Chris, that's probably not a bad way to look at it- it probably cuts down on the disappointment factor!

Bob, it's VERY good beer!

Tony, approximate piston speeds are:

3845fpm @ 5000 rpm
4239fpm @ 5500 rpm
4626fpm @ 6000 rpm

Regardless of the dyno results, the mag rev limiter will be set at 5000rpm to start with. I have no plans, this first year, of going past 5500rpm. The engine will be tore and and checked often, to see what kind of wear and damage we have, assuming we don't 'grenade' it.

Ok, please explain 'posting the cylinders'. You have to remember, I'm just a redneck that digs holes in the ground for a living- this fancy jargoned stuff isn't in my vocabulary!


Geesh. . . . . . .  I get 2 runs on my GMC then its tear down time; that's why I unload it ready to qualify if I can.

Joe and I never got more than 2 in a row with the pan off in impounds everytime. We made 3 runs for five years straight but the head and pan were off after the first one, once with 11 bad valves.

Hey my son wanted a "hat" (and I didn't even have one)........................JD

Jimmy, you're a very generous dad! :cheers:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: maguromic on September 24, 2011, 02:18:33 AM
Buddy, Posting was an old trick developed by, I believe Holman & Moody in the old NASCAR Days.  It was mainly used on the heads to help them, but was also used on the old blocks to keep the cylinders from going out of round.  To post the block you mill the block exactly on the bore center-line for 5/16” in diameter and spot face the cylinder wall and tap the hole for 3/8” x 16 threads.  You need to put more on the thrust side of the motor.  Then you use threaded rod and tighten them to about 5lbs, this is what gives the cylinder the extra support from flexing.  You need to do all this before finish boring to keep bore distortion down.   Most of your high boost compact car engines are having their blocks posted to keep the bore distortion down.

We are currently posting the GMC block and if you want I can send you some pictures on how it’s done in the next few weeks. Tony
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: SPARKY on September 24, 2011, 08:08:12 AM
Tony, picts inquiring minds need to SEE
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: GH on September 24, 2011, 10:04:09 AM
I got lost on the posting. Like sparky said, photos would help.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Rick Byrnes on September 24, 2011, 10:12:58 AM
Tony, I would love to see photos as well.
My Ford "Pinto" blocks are only a little more than 40 year old design and don't need as much help as those designed 70 and 80 years ago, it is still nice to see methods that work.
Please keep up your good work.
I enjoy
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: maguromic on September 24, 2011, 11:54:25 AM
I will post them on my build diary in the next few weeks with a step by step.

Rick, 40 year old blocks, love them late model stuff myself.  :cheers:

This link has some good pictures of a Honda block being posted.  Its the same principle (they think its a new technology, and haven't looked at a 1960's  NASCAR block) and they even have kits for these guys to do it.  But being the crafty racers we are, its simple to build. (from a Honda forum) http://www.muller.net/sonny/crx/engine/posted.html  Tony
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Milwaukee Midget on September 24, 2011, 12:06:47 PM
Tony, thanks for the link,

While my casting is only 40 years old, the design is 60.  While I think I'm okay at .0315 over for a NA engine, if I ever rebuild an A-block with a turbo, this would be slick mod.

Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Tman on September 24, 2011, 01:33:14 PM
Thanks for the link Tony, sent it to my partner, the engine guy. :cheers:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: maguromic on September 24, 2011, 04:39:17 PM
If it can help one of you guys save a motor then its great.  I actually found out about the procedure when we were racing in the dark ages (before Ford SVO came out will all the trick stuff).  Our engine program was getting a lot of help from the Wood Brothers and Leonard Wood suggested that we post the heads at the ends to stabilize the combustion chamber area to avoid head gasket failure (mind you these were the days of building our own high port heads by milling and adding plates).  Ever since then I have done this to all of my vintage heads and blocks.  Posting the block is really helpful for our Bonneville GMC engine, where the compression ratio is closer to 17 to 1.  on our N/A engine. Tony
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on September 24, 2011, 04:55:38 PM
Tony, thanks for the info! The pics cleared things up for me.You always have so many cools tricks up your sleeve, I know that your build will be a major success!

Unfortunately, I'm passed the point where I can do this to the block without taking a big step backwards. It is something I'll look at for future engines,as it looks like it could be real beneficial.


Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Tman on September 25, 2011, 02:10:17 PM
I found a lot of info on posting but none on vintage steel blocks like we are using. Tony, what are you using for posts and sealer?
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on September 25, 2011, 09:42:40 PM
Dale finished match porting the top girdle, and prepping the block. Assembly is up next!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: SPARKY on September 25, 2011, 10:15:53 PM
looks like that thing could be mad into  4 bolt if not a cross bolt
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on September 25, 2011, 10:24:17 PM
Haha! Sparky, that was a case of too many fingers in the pie!

The first thing Fowler suggested was cross bolting the mains.Somewhere along the way, many things and intentions were changed.

Can anyone tell me the 'popular' 4 speed being run behind the Jimmy engines?
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: BoredAndStroked on September 25, 2011, 10:30:29 PM
RE:  Blocks Being Expensive and Hard To Find . . .

To me, this is only one part of it . . . the other part that is on flatheads of any kind, the amount of work you put INTO the block far out weighs the cost -- time is the killer!   I've kept track of my porting hours alone on the FlatCad, have 116 to date.  Now that is just one part of the other big time sucks and associated expenses that are related specifically to this block, things like:

a) Block Pan Girdle - 1.25" steel . . . had to be made to fit just this block - as the exact bolt/stud locations tend to differ a bit.

b) Intake/Top Girdle - .75" steel . . . darn thing isn't symmetric, ports don't align on one side like the other . . . just this block . . . or all blocks . . . who knows!

c) Steel Main Bearing Caps . . . will probably fit another block  (hope we don't have to find out!)

d) Moving center thrust to the rear,  new main bearing sizes.     Many hours of complex work on various boring, align boring and milling machines.

e) All the valve guide work, large valves, etc -- expensive work on a mill, much more than on a OHV head

On an OHV engine, we'd have far less time and agony in the block . . .  just a fact of life.   Now that is not to say that the time/money can't be spent on the heads of an OHV, just that if you lunch the block, the heads are usually usable on another block.   When you grenade a flathead block, you cry yourself to sleep and resist slitting your wrists in a warm bath!    :-o

I can't wait to see this on the Dyno -- I'll be like a kid at Christmas time!   Buddy and I will be shaking like dogs crapping razor blades . . .

Dale
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: maguromic on September 25, 2011, 11:25:18 PM
Buddy, that engine is looking great! Keep up the great work.  Tony
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: maguromic on September 25, 2011, 11:29:07 PM
I found a lot of info on posting but none on vintage steel blocks like we are using. Tony, what are you using for posts and sealer?

Trent, I am using threaded steel rod for the posts and to seal it I will cut for an  "O" ring and use a jam nut or you could use Yamabond #4. Tony
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on September 26, 2011, 09:43:51 AM
Buddy, that engine is looking great! Keep up the great work.  Tony

Thanks Tony!

Stan Back and Chris, you guys just made my day-Thank You! :cheers:

Chris, one shock is significantly bigger than the other two-what's the application difference?

Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on September 26, 2011, 01:25:06 PM
We've tried to make it easy to swap between comp coupe, and alt class. Now, we're going to change things up a little, and make it easy to swap between gas and fuel class.

The carbs will be utilized only for gas, and the Enderle only for fuel. The setup I have won't alter the overall appearance much, so I'm happy about that.

Dynoroom has the dual 750's, and is boost referencing and freshening them up.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Milwaukee Midget on September 27, 2011, 12:11:49 AM

Chris, one shock is significantly bigger than the other two-what's the application difference?


The smaller pair is off of a Spridget - rear.  The larger one is an MGB/MGC shock.  All of them would need a rebuild, but Apple Hydraulics will give you credit on any rebuildable core.

I'm torn on a suggestion - you don't have a lot of suspension travel, and the Spridget shocks are more compact, so my first inclination would be to see if you can adapt them.  If you have the room, and given the weight you're carrying, the MGB shock's extra oil capacity might be the way to go, but you might not need to.  The arms should interchange if you need to go with Midget arms on MGB bodies, or vice versa.  There are stiffer valves available for either one through Moss Motors or Victoria British, and you can stiffen them up further by going with a marine grade hydraulic oil.

Mock 'em up - if they work, great, if not, it's pretty clear that this team is pretty resourcefull - you'll figure something out.   :cheers:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Peter Jack on September 27, 2011, 01:21:50 AM
I may be out to lunch but I'd be really concerned that those little air cleaners aren't going to allow enough air to flow in freely. I always try to make it so there is an absolute minimum pressure drop through any air cleaner I use.

Pete
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: maguromic on September 27, 2011, 01:37:36 AM
Also the shape of the base of the air cleaner will have an effect. Don't leave anything on the table, it just might be the fraction you were looking for. Tony
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on September 27, 2011, 12:14:35 PM
I agree that this might not be the perfect setup. I doubt we use the air cleaners, I simply have them with the setup. We'll probably run a 'sponge type cleaner in the front of the scoop.

We'll try all the combos on the dyno, then figure a way to do whatever it 'tells' us!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Peter Jack on September 27, 2011, 02:05:56 PM
The sponge will offer even less area and likely even more resistance. Good luck and please check them closely. I want to see this thing make POWER! :-D :-D :-D

Pete
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: jl222 on September 27, 2011, 03:03:55 PM

  I once wanted to put a screen in the intakes of our blowers, but after my buddy tested different ones for flow,

 which was bad , I decided to FORGET THAT.


           JL222
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Stan Back on September 27, 2011, 04:09:31 PM
There's not a lot of salt in the air to pick up if you design the intake properly.  Not many birds, either.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on September 29, 2011, 06:56:04 PM
Haha! Ok, I get the drift- no air cleaner!

Woody is going to look at a few things for us, and he mentioned he had a few scoop ideas he wished someone would try. Hopefully, I can talk him out of a good design!

I sent him off the head designs today, and he's going to look at the water flow and cooling properties. Hopefully, if we have a problem area, we can then catch it before we're on the salt. I also talked to him about some computer flow work, for a modified port idea I have.

Hopefully, Woody will post his flow/cooling findings here.

In the mean time, the crank is headed to the crank grinder in the morning. The new Crower crank is a little tighter fitting  than we wanted, even with + .0001 bearings. We only have .0025-.00275 on the mains, and want to be .003-.0035. They're 2.75" BBC mains, but with only 3 mains, we'll no doubt have some flex.

Dale's all over it though, so hopefully Jeff can get us a quick turn around on the crank.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Peter Jack on September 29, 2011, 08:28:09 PM
Just to go a little further on the air cleaners, large diameter filters with pleated filter media around the circumference offer much less restriction. Sometimes you'll see two sandwiched together to double the depth and therefor the filter area. This can pose packaging problems and would not give you the appearance you're looking for but would offer the best in a clean low restriction air supply.

Pete
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Rex Schimmer on September 29, 2011, 11:53:07 PM
Buddy,
This is a scoop that I made for my friend Steve Nelson's lakester. The plan view shape is a NACA 66018 symmetrical air foil, the inlet ID is 2.75 inches which is about 15% over the perfect size for his engine at 200 mph. It has 3 internal turning vanes that split the air for each of the 4 injectors. It fits tightly over the inlets with little leakage. We went 187 last year and 197 this year with approx the same motor setup so I think the my scoop was responsible for a part of this improvement.

Rex
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Rex Schimmer on September 29, 2011, 11:55:19 PM
Lets try it with the pictures!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on September 30, 2011, 08:45:46 AM
Rex, I read your post, then spent 3 hours Googling "NACA 66018 symmetrical ", and reading about air foils, and the principle and theory of such.

I'm not the brightest guy, so it should come as no surprise that I don't fully understand" It has 3 internal turning vanes that split the air for each of the 4 injectors."  Are these vanes simply lined upside to side, with a cental pivot point
?
Any chance you could expound on that a little?
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: SPARKY on September 30, 2011, 09:50:07 AM
Imagine your hand with your fingers forward with the fingers dividing the forward facing inlet space into 1/3s and the bottom or heel of your hand dividing the space over the ingectors into 1/3s and they stay above the injector or carb openings by ?????
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on September 30, 2011, 10:00:02 AM
Sparky, That makes since. I'm guessing then, since they turn, they must be attached by a verticle rods, allowing them to pivot?


Ok, guys, we have two different schools of thought going here. hopefully, you guys can weigh in with some experience/opinions.

One of us feels that .00175-.0002 rod clearance is sufficient, and prefers a light weight oil like Royal Purple XPR 5-30w.

The other of us thinks .0025-.00275 is necessary for the rods, and prefers a heavier oil-20-50 weight.

Same thing on the tranny and QC rear end. One of us feels the traditional 80/90w, or 90-140w is necessary, and the other thinks a good synthetic 20-50w engine oil is sufficient.

What do you guys use, and what are your opinions on this?
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: RichFox on September 30, 2011, 10:21:13 AM
I like the idea of the wider clearance on bearings, with the thought being if more oil passes over the bearing surface, it will carry away more heat. Oil pressure may not be as great, but will still be plenty and the actual oil film will be cooler. I think 20-50w is fine in the trans. I still run 90W in my QC
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: SPARKY on September 30, 2011, 11:08:57 AM
I run 5-30 synthetic in my rear axles

you attach and seal the vanes to the sides of the scoop  you are just attempting to equalize the pressures and minimize turbulence
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Freud on September 30, 2011, 11:33:06 AM
Years ago Herda made several scoops. Rochlitzer, Markleys and possibly Donny Torgeson got one.

I've left someone out but I can't remember who. I think Herda used one also.

I never looked inside them but I know the dividers were curved and those scoops are still around today.

FREUD
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: BoredAndStroked on October 04, 2011, 10:54:58 PM
I like the idea of the wider clearance on bearings, with the thought being if more oil passes over the bearing surface, it will carry away more heat. Oil pressure may not be as great, but will still be plenty and the actual oil film will be cooler. I think 20-50w is fine in the trans. I still run 90W in my QC

I'm with yah Rich!  I keep trying to tell Buddy that "Bigger is Better" - you can always half shell a bearing to tighten it up, but yah can't take .0005 off a journal later on.  Nothing like a good debate on bearing clearances to make ones day, but a good discussion is always good.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: JamesJ on October 04, 2011, 11:56:07 PM
Sparky, That makes since. I'm guessing then, since they turn, they must be attached by a verticle rods, allowing them to pivot?


Ok, guys, we have two different schools of thought going here. hopefully, you guys can weigh in with some experience/opinions.

One of us feels that .00175-.0002 rod clearance is sufficient, and prefers a light weight oil like Royal Purple XPR 5-30w.

The other of us thinks .0025-.00275 is necessary for the rods, and prefers a heavier oil-20-50 weight.

Same thing on the tranny and QC rear end. One of us feels the traditional 80/90w, or 90-140w is necessary, and the other thinks a good synthetic 20-50w engine oil is sufficient.

What do you guys use, and what are your opinions on this?


75W-140W gear oil is not the same viscosity as 75W motor oil it is actually much less maybe like a 30W motor oil, the real difference is that the gear oil can take more shock or maybe its called film strength, dont know but the RP XPR oil has the same strength as gear oil, you would not want to use it for most application but you can use it for Bonneville, We run the XPR 5-20 in our rear end and trans, as for how much difference it makes, most likely not much in the big picture.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on October 05, 2011, 06:23:39 PM
I like the idea of the wider clearance on bearings, with the thought being if more oil passes over the bearing surface, it will carry away more heat. Oil pressure may not be as great, but will still be plenty and the actual oil film will be cooler. I think 20-50w is fine in the trans. I still run 90W in my QC

I'm with yah Rich!  I keep trying to tell Buddy that "Bigger is Better"


Now Dale, you know there is no 'hard and fast' (pun intended) rule there- otherwise, Nascar would have to rethink everything, and a lot of guys wouldn't have girl friends! :-o

I was at Dale's last night, and he has been bust. He made intake hold downs, and match ported the intake, undercutting it, to help direct flow.

Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on October 05, 2011, 06:25:51 PM
The crank is ready to install!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Milwaukee Midget on October 05, 2011, 08:14:58 PM
Oooooo . . .

Aaaaaa . . .

Don't you just love that new crank smell?  :-D

As always, nice piece of work.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on October 11, 2011, 08:07:24 AM
Well, the engine prep and assembly continues. Dale got the timing cover adapter plate drilled and mounted, and fitted the Donovan gear drive.


Tonight he will clearance the bottom of the block bores to clear the rods.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: maguromic on October 11, 2011, 10:38:35 AM
Looking good Buddy!  Tony
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on October 11, 2011, 11:19:45 AM
Thanks Tony!



I received an email, stating the person loved the build, but wondered why I would even bother making a separate post just to show an adapter plate and Donovan drive being bolted to the engine.

Well, probably because it just doesn't bolt to the engine! I understand that it may seem that simple, but there is a LOT more involved than that.

There is no gear drive made, that has a crank to cam centerline measurement that will work on the engine.The BBC .400 raised deck gear drive comes the closest, but is still .027 shorter than the Flatcad.

So, the crank centerline had to be raised .027, and the rules allow for .150. To raise the crank, larger mains were needed to cover the 'gap' that was left. This is one of the reasons we used BBC mains (2.75"), instead of the stock 2.459" mains. A Chevy BBC snout was ground onto the new crank, to fit the gear drive, and so that we could get blower drive parts off of the shelf. The stock Caddy dizzy drives off of the rear of the cam, so the cam had to have the BBC snout, and gear.

As a side note, this is the only engine I've been into, that has larger rod journals (2.46"), even if marginally, than it has mains(2.459). These are stock measurements, per the U.S. Military repair manuel.

The BBC has a different timing cover bolt pattern than the Cadillac, so an adapter plate had to be made to bolt the Donovan onto the block.

Hope this clears thing up!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: jimmy six on October 11, 2011, 11:42:45 AM
38F...Take a little of your time and read about Joe Gibbs Racing Oils. Both engine and trans/rear gear oils. After I thought I was prepared to ask some questions I called their tech guy and we arrived at some interesting conclusions. They list LSR on their web info which I was very supprised. They reccommend eveything on clearances.....very intersting. Remember we "normally" do not run our oils at the temperature they are most proficent.........Continue to think outside the box.....Good Luck..JD
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Tman on October 11, 2011, 12:22:34 PM
Buddy, Dale. Do look at teh Joe Gibbs stuff. They are HAMB Alliance vendors so you can get that discount if you are a memeber there.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on October 11, 2011, 01:25:12 PM
Thanks JD!

I took your advice, and called Scott at Joe Gibbs Driven-great guy, and very helpful! He suggested the BR (15W-50) break in oil for the dyno, and their gear lube for the tranny and rear end. He said the gear lube is about the same viscosity as a 50w oil, but with better cooling and protection properties than oil, in those applications.

Scott asked that I call him back after we run on the dyno. He said he felt the XP-3 (10W-30)  oil would be the right choice, but wants to know what our oil temps reach. If we have a higher oil temp, then he said the new XP-9 (10W-40) oil they are introducing would be the choice.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on October 15, 2011, 04:52:52 PM
Ok, I ve been thinking about this since I was working on the original, B&M blown Medusa engine.

Today, I took a sawzall, and cut a block up to see if it would work. It seems to me, if I can get rid of the first 90 deg bend going into the intake, and the last 90 deg bend coming out of the exhaust, I could get better flow.

My plan is to fill the top 2.5" of the block with Hard Blok, then mill the 90's off. A plate will be welded in to attach the intake and exhaust, and to help direct flow. A heavy port job should allow the huffer to move some air to the cylinders.

The heads will still be able to flow water, as will the block. The only area not getting direct water cooling will be the top 2.5" of the cylinders.

This SEEMS like a good idea to me. What do you guys think? If you don't think it will work, please be specific.

...and if it will work, is the effort worth the gain?

 
No, this is not for the engine we are assembling now! It's an idea for an upgraded, roller cam, fuel version. :evil:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on October 15, 2011, 04:53:49 PM
Forgot the exhaust port!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Milwaukee Midget on October 15, 2011, 05:29:09 PM
A SAWZALL!?!?!?   :-o

That HAD to be arduous.

I wish I knew more about this Hard Blok stuff - I'll be on Google for the next couple of hours - getting edumacated, thankyouverymuch . . .

Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: RichFox on October 15, 2011, 09:33:24 PM
Seems like it would work. I think "Hard block" is the same stuff (Concrete) they put on the base of milling machines to keep them steady.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: saltracer1 on October 15, 2011, 11:22:18 PM
(http://i264.photobucket.com/albums/ii177/saltracer1/DSC03193.jpg)

Hoping to do something similar with a good old flathead Ford block and reroute exhaust too. this cross section shows the original intake ports and a new small exhaust port drilled with hole saw. Phil
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Dr Goggles on October 16, 2011, 01:14:11 AM
I read up a little on Hardblok and it says it is not possible to remove it..... I reckon three beers and the taco that I had at the Motel 29 Palms on "Free Taco Night" could get it out, trust me. :oops:

On a more serious note, you blokes are up for anything yeah?.... Buddy, finish that flatcad before you confuse us with more exotica, I'm kind of boggled by the whole build already.....at what point does the balance sheet tip on developing that lump?  :evil: :evil: :evil:

No, you don't have to even start explaining.......
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on October 16, 2011, 09:18:01 AM
I read up a little on Hardblok and it says it is not possible to remove it..... I reckon three beers and the taco that I had at the Motel 29 Palms on "Free Taco Night" could get it out, trust me. :oops:

On a more serious note, you blokes are up for anything yeah?.... Buddy, finish that flatcad before you confuse us with more exotica, I'm kind of boggled by the whole build already.....at what point does the balance sheet tip on developing that lump?  :evil: :evil: :evil:

No, you don't have to even start explaining.......

Haha! The Flatcad is in the final assembly stages, being readied for the dyno!

There are a couple of reasons I'm toying with this idea for the second engine:

1) More Power! Better airflow, more efficient roller cam, bigger bore (sleeves) and shorter stroke, for a more powerful, higher revving engine.

2) Procharger style supercharger- less parasitic drag, lower profile, more ponies!

Why do I want this, when I plan on eventually putting the Jimmy engine in the car for a few runs?

It's simple- I want to get as much HP out of this old flathead that I can. On top of that, the current Flatcad was built with a 'traditional' look in mind. Unfortunately, that 'traditional' look will make it virtually impossible to fit the mill in a lakester or liner. A more powerful mill, with a low profile, could be installed.

...and I would really like to see one of my Flatcads run in a lakester or liner!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Buickguy3 on October 16, 2011, 10:00:12 AM
   Buddy,
  I think you mentioned earlier in the build, but who builds a billet for the camshaft? We are still looking for a source for the straight 8 cams.
  Doug  :cheers: :cheers: :cheers:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on October 16, 2011, 10:11:57 AM
Doug, PM sent.

Joe Panek at Roto-Faze will make you a cam blank. His number is 310-325-8844
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Tman on October 16, 2011, 10:56:06 AM
I read up a little on Hardblok and it says it is not possible to remove it..... I reckon three beers and the taco that I had at the Motel 29 Palms on "Free Taco Night" could get it out, trust me. :oops:

On a more serious note, you blokes are up for anything yeah?.... Buddy, finish that flatcad before you confuse us with more exotica, I'm kind of boggled by the whole build already.....at what point does the balance sheet tip on developing that lump?  :evil: :evil: :evil:

No, you don't have to even start explaining.......

Haha! The Flatcad is in the final assembly stages, being readied for the dyno!

There are a couple of reasons I'm toying with this idea for the second engine:

1) More Power! Better airflow, more efficient roller cam, bigger bore (sleeves) and shorter stroke, for a more powerful, higher revving engine.

2) Procharger style supercharger- less parasitic drag, lower profile, more ponies!

Why do I want this, when I plan on eventually putting the Jimmy engine in the car for a few runs?

It's simple- I want to get as much HP out of this old flathead that I can. On top of that, the current Flatcad was built with a 'traditional' look in mind. Unfortunately, that 'traditional' look will make it virtually impossible to fit the mill in a lakester or liner. A more powerful mill, with a low profile, could be installed.

...and I would really like to see one of my Flatcads run in a lakester or liner!


Lakester you say? :cheers:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on October 16, 2011, 12:59:10 PM
(http://i264.photobucket.com/albums/ii177/saltracer1/DSC03193.jpg)

Hoping to do something similar with a good old flathead Ford block and reroute exhaust too. this cross section shows the original intake ports and a new small exhaust port drilled with hole saw. Phil


That will be a cool conversion, kind of like Jimmy Sevens'. You might contact him, and see if he'll give you some pointers!

The thread of yours where you talked about the Hard Block, is where I got the idea to incorporate it into this block.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: desotoman on October 16, 2011, 02:49:40 PM

There are a couple of reasons I'm toying with this idea for the second engine.

I want to get as much HP out of this old flathead that I can.


Buddy,

You might be closer to you Max HP than you think. These old blocks will only take so much HP then they break. Years ago I talked in length with a very knowledgeable vintage engine builder. He told me his motors would only hold XXX amount of HP. It did not matter if it was blown gas, injected fuel, or blown fuel the number was the same on the dyno before they broke the block.

Just passing on some information that applies to all vintage motors. These motors are not cheap to build as you know, and I would hate to see you spend a fortune on a motor to just end up with a piece of garage art.

Money might be better spent on the car in a wind tunnel, than flogging the old iron.  JMO.

Tom G.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: RichFox on October 16, 2011, 03:53:30 PM
Reasonable. But first you need to find that point.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on October 16, 2011, 04:31:49 PM
Tom, what you say makes since, But like Rich pointed out, we don't know where that point is.

Ron main was able to get over 700hp from the Ford flathead, although he ran at far less hp than that.

In addition to more HP, being able to 'split' the siamesed center exhaust port would be nice!

Really, the main goal is to maximize HP at a reliable level- a level that will allow the engine to live, and make it compact enough to be viable for someones lakester or liner.

It may only be a dream at this point, but I'd like to be part of a venture that strived for the 'World's fastest flathead"! Main and Stevens have set the bar HIGH!

Here's a couple of pics of the siamesed exhaust, and a pic of the 'profile' of the engine with the 90's cut off.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: desotoman on October 16, 2011, 06:08:43 PM

Ron main was able to get over 700hp from the Ford flathead, although he ran at far less hp than that.


LOL, Don't let Ron kid you, they used all the HP they could get.  Ron even went to Gail Banks and had his Expedition's motor reworked so they could push the liner up to speed faster.

If you really want to go after the ultimate Flathead record, go find yourself a 308 Hudson 7X motor or motors, and do to it what you have done to the Flatcad motor only add a turbo. Then hook up with Costella & Yacoucci and put the motor in one of Jack's liners. You will have meet your goal, without breaking the bank account.

Tom G.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on October 16, 2011, 08:00:11 PM
Tom, you could be right, but the FlatCads and the Jimmy will keep us busy the next couple of years!


In the mean time, the FlatCad prep and assembly continues. Dale was busy with his die grinder this weekend, notching the bottom of the cylinder bores for rod side clearance.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on October 16, 2011, 08:27:51 PM
Dale also drilled, tapped, and got the rear seal plates installed!


Here is his explanation of the mounting system: The seal plate uses two different mounting methods - three 10-32 bolts are drilled/tapped to first attach the .187 plate to the block (with a .015 or so gasket behind it). These bolts and the .187 base plate are put in before the crank is put in - they hold everything in place and hold the plate against the block.

Then, once the crank is put in, with the new rear main cap and the girdle, there are 4 other more substantial bolts (5/16 NC) - two on the main cap and two on the girdle.

The aluminum plate - which holds the one-piece seal goes in after the crank is in the block. It has a series of 5/16 NF bolts around the perimeter.

The Wilcap/QuickTime bell-housing block-saver plate and adapter plate will need to be cut-out to fit over the seal-plate.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Rex Schimmer on October 16, 2011, 09:31:23 PM
Buddy,
With what you are planning for the future of the Flat Cad I hope you are making drawings up for a 5 main bearing crank and girdle also.

Rex
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on October 16, 2011, 09:40:02 PM
Nope, I'm not drawing up plans for a 5 main crank.


I'm not qualified to do so! I AM trying to talk Dale into designing it, though! :-D
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Buickguy3 on October 16, 2011, 11:13:37 PM
  Buddy,
    Thanks for the name of the cam company. I couldn't recall it in my Salt brined brain.
  Doug  :cheers: :cheers: :cheers:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on October 17, 2011, 07:23:20 AM
I hope that cam helps you guys go faster and set more records! :cheers:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Buickguy3 on October 17, 2011, 02:26:36 PM
  Actually, Buddy, I was doing the research for a friend building a Studebaker 289 that can't seem to find any billet blanks for his project. We will, however, look into one for the straight 8 in the future.
     Doug  :cheers: :cheers: :cheers:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Pete1 on October 17, 2011, 03:12:02 PM
" Actually, Buddy, I was doing the research for a friend building a Studebaker 289 that can't seem to find any billet blanks for his project."

Call Joe Panek at Roto-Faze for ANY steel cam billets.
310-325-8844
Torrance,Ca.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on October 23, 2011, 03:16:28 PM
I was supposed to do an Idaho/Washington/California trip this week, but after a 'talk' with the wife, that came to a screeching halt!

I needed to get the car off of the trailer, so out of the house I headed. After untarping the car, and stewing about the 'talk', I stared at the car for a few minutes. Damn, I hate those shocks and the frame horns!

I forgot about unloading the car, and headed to the garage to get the trusty sawzall
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on October 23, 2011, 03:24:08 PM
Now, with a little welding and grinding, it should be a lot better!

I need to figure out something to deflect the air around the axle. I've got an airplane junk yard about 5 miles from the house, and I'm contemplating modifying a wing strut, attached horizontally in front of the axle. Any ideas about this?

Rex and Sparky both mentioned the amount of air disturbed by the front tires, and more specifically, the air behind the tires. I'm looking at a half fender, with something like the last pic, on the backside of the tires. Is this worth the effort, or am I on the wrong track?
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on October 23, 2011, 04:55:51 PM
Dale prepped and primed the block this weekend.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: SPARKY on October 23, 2011, 10:26:33 PM
P  U R D Y  :-D  :cheers:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Milwaukee Midget on October 24, 2011, 12:00:06 AM
Nothing like a freshly machined block, glistening in the autumn sun.

Skip the paint - CHROME IT!  Too pretty to paint.

 :cheers:

Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on October 24, 2011, 09:06:10 AM
The Flatcad engine build kind of took a life of it's own, and progressed from what I intended. There are many aspects I dislike, and would never do again, regardless of the consequences. Vintage is vintage, and I'm mad at myself for straying.

Colin finished his 4-71 intake and blower drive system, and it's installed on Dennis's car. Now that is the perfect Flatcad engine!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Rex Schimmer on October 24, 2011, 12:19:24 PM
Buddy,
In the class you are in almost anything goes for the front end and what you have is probably more work to improve its aero than just a start over. I would think that you need to have the front of the body completely blended into the grill area and smooth back to the cowl then the axle and wheel can be a separate part with aero additions. I am attaching a pic of the front of a modified roadster, and to the guys that own this car please excuse me for not remembering your names, but you can see how they have completely covered the axle and inter wheel to improve the air flow. You could actually add some wheel covers but you need to be very careful as their shape and location can make them a pair of high speed turning vanes that could be a problem.

Rex
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Glen on October 24, 2011, 12:45:59 PM
Rex, wheel covers/fairings in front or behind the tire put the vehicle into a streamliner class on a lakester, on a roadster not allowed. The axle cover is ok.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on October 24, 2011, 02:14:33 PM
Glen, I thought I checked, and wheel fairings were legal in comp coupe? I'll look it up again.

Rex, you bring up a good point about the fairings turning into wind vanes. What would you suggest? I like the idea of an axle cover, and I'm going to explore that idea.

We could make this more aerodynamic, by smoothing everything from the grill to the cowl, but we would lose some of the '38 'look'. It will cost us some aero, but I want the ability to put the fenders on from time to time, and keep that 'look'.

We'll smooth things out, while doing a balancing act to maintain the overall look it has now.

Pinkees Rod Shop, in Windsor, CO.,  has agreed to sponsor us! :cheers:

Pinkees owner, Eric, will be making side panels, to cover the open area normally covered by the fenders. We planned it out this morning, so that the panels would transition from the 'fade away' area, to flush in the front. This way, I can still run fenders when I want.

Throw those ideas out here about the front tires- I'm all ears. Ideally, I would go with a straight axle, but then I would need 13" tall tires, to maintain the same stance height.


Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Tman on October 24, 2011, 03:37:36 PM
Eric is a good guy. Tell him Trent from Rapid City says hi.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Glen on October 24, 2011, 03:57:49 PM
Glen, I thought I checked, and wheel fairings were legal in comp coupe? I'll look it up again.

Rex, you bring up a good point about the fairings turning into wind vanes. What would you suggest? I like the idea of an axle cover, and I'm going to explore that idea.

We could make this more aerodynamic, by smoothing everything from the grill to the cowl, but we would lose some of the '38 'look'. It will cost us some aero, but I want the ability to put the fenders on from time to time, and keep that 'look'.

We'll smooth things out, while doing a balancing act to maintain the overall look it has now.

Pinkees Rod Shop, in Windsor, CO.,  has agreed to sponsor us! :cheers:

I know they are legal in comp coupe, I said roadsters and lakesters. :-o


Pinkees owner, Eric, will be making side panels, to cover the open area normally covered by the fenders. We planned it out this morning, so that the panels would transition from the 'fade away' area, to flush in the front. This way, I can still run fenders when I want.

Throw those ideas out here about the front tires- I'm all ears. Ideally, I would go with a straight axle, but then I would need 13" tall tires, to maintain the same stance height.



Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Rex Schimmer on October 24, 2011, 04:47:46 PM
Buddy,
I took one of your pics and butchered it up to show your car with an idea for some front wheel covers. My thinking would be to make them as a fixed fender, that would not turn with the wheel to avoid the turning vane affect. This would require that they be wide enough to allow the wheel to turn inside of them which means you would probably need to reduce your turning angle to around 5 deg either side of center. Although the frontal area of these would be several times the area of the tire/wheel, if they were designed and fabed correctly they could have a Cd that would be 5 to 10 times lower so the end result would be a pretty large reduction in drag. You would also probably need to increase the front track width to allow plenty of room between the "fenders" and the body.

Rex
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on October 24, 2011, 06:00:42 PM
Sorry Glen- I'll work on my reading comprehension skills!

Hmmm, interesting Rex! I was thinking of a 'half fender', and just addressing the air behind the tire. Your design would be doable on the car- where do I find the info to build it properly??!!

Smaller tires would be a big plus-what are the smallest diameter tires available. I couldn't find any under 22", without going wide
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Rex Schimmer on October 24, 2011, 08:09:35 PM
Buddy,
I like the 1/2 fender idea also as it could also be fixed to avoid the "turning vane" and it would be much easier to build and mount. I think if you look at some of the Goodyear land racing tires I think there are some 21-22 inch tires, but you are right you don't want wide. If you can get air to get past the wheel and then fill in behind with a faring  there should be a good improvement in the aero of the wheel assembly. I am a big fan of non-rotating wheel covers on both the back and the front of the wheel and if you have a good shape behind the tire you certainly can improve the aero. I have seen some CFD on the air around a rotating wheel, in this case it was a road racing wheel/tire, and it appeared that filling in the void at the bottom of the tire was the best approach.

Rex
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Glen on October 24, 2011, 08:25:53 PM
The Mormon Meteor Has rear half fenders on all 4 wheels. Cleaning the air behind the tires has been known for years. Elmo Gillette and I talked about this years ago. Sharp old man.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: maguromic on October 24, 2011, 10:32:37 PM
Buddy, Do yourself a favor and give Woody a call, the placement and shape is going to be very critical.  Great build and keep it up.  Tony
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Tman on October 24, 2011, 10:52:47 PM
I think for all the hassle I would clean up some stock fenders aero wise and bolt them back on.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on October 24, 2011, 11:20:59 PM
Thanks Glen, I'll try and find some pics of the Mormon Meteor!

Rex, I too, really like the idea of 1/2 fenders, and think that is the route I'll pursue. I'm working on fixed inner wheel discs, that bolt on with the hub assembly. I think these things, along with a dam or cover for the axle, will be a huge improvement over what I currently have.

Tony, funny you should mention Woody. I've been talking with him about doing a computer bench flow for me, as well as checking water flow through the heads. I don't know why I didn't think of him for this, but I will be talking to him about it now!

I think for all the hassle I would clean up some stock fenders aero wise and bolt them back on.

Trent Trent, Trent- man, you just don't get it! :?

Anyway, My  wife an a appointment tonight, so I grabbed the car and snuck over to my buddy Thom's house.

A little pizza, a little Jack,some welding and grinding, and the hole left from cutting off the frame horns and shock mounts disappeared.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Tman on October 24, 2011, 11:58:05 PM
Notice i said clean them up :wink: I mean REALLY go to town with some surgery. Ask Eric about it, he has the skills. In my mind they would look stock from the side but real narrow and like airplane spats from the front, similar to whats beeen tossed around.  :cheers:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: RichFox on October 25, 2011, 12:07:13 AM
I am told the greatest drag on an open tire is at the top, as it is showing the air twice the speed of the car. That seems to indicate that a close fitting motorcycle type fender would give substantial gain without substantial work or increased frontal area. I don't know if street roadsters can run front fenders. They don't. So maybe this is stupid.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on October 25, 2011, 07:01:50 PM
Thanks guys- pretty sure we'll have some sort of fenders and axle cover or air dam.

While I've been pondering aero, Dale painted the block!


Yea, I know, but it's the little things....
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: WOODY@DDLLC on October 26, 2011, 04:03:45 PM
Buddy your build is top-shelf man! Loved seeing it at Speed Week and meeting you as well!!

Attached are some wheel shots for everyone's continued mental anguish.  :evil:

Air speed is 300 mph [L=>R], the wheels are rotating and the ground is moving, too. The plot is a 2D slice of the left front tire just about 1.38" off the center towards the outside. I probed areas around the tire so there is some 3D info at these 2D spots. Air velocity -Z is L=>R, +Y is up and +X is out of the picture. (-X going around the tire back towards center.) The 3D plot shows the air being pulled around the tires near the surface - sometimes in the opposite direction, hmmmm? Relative pressure zero is atmospheric so any low pressure on top is lift and on the bottom is down force. Conversely any high pressure on the bottom is lift and on the top is down force. The graph is the pressure on the tire surface so the numbers don't match the probes exactly. Enjoy!  :-D
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on October 27, 2011, 08:27:42 AM
Woody, the charts are a neat visual, but I still don't know what I'm looking at!

Looks like there is an easy 3X the amount of lift that there is down force, but I don't understand how much 'drag' is there.

I may be the only one on the board that doesn't understand this info, but could you please explain it a little?  :?

I've got some block/water info headed your way today, also.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Tman on October 27, 2011, 10:56:01 AM
Buddy, looks like a tye dye to me as well! :?
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on October 27, 2011, 07:43:21 PM
I dropped the car off at Pinkees today, to get the side panels made.

Here is the 'finish' room. I'll get pics of the fab room next time- it's a real cool place!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Glen on October 27, 2011, 09:00:22 PM
Nice clean shop.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 4-barrel Mike on October 27, 2011, 10:00:00 PM
This isn't a fly-by-night shop: http://pinkeesrodshop.com/ (http://pinkeesrodshop.com/)  :cheers:

Mike
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Rex Schimmer on October 28, 2011, 01:01:17 AM
Woody,
It took a long time but I think I finally figured out why your CFD does not look like I thought it should. You do not have the tire in contact with the ground, the blue area below the tire, which is the lowest pressure is also the highest velocity, which makes sense if the tire is not in contact with the ground. The air is flowing at 300 mph and this velocity is added to the air that is drawn down by the tire surface and this gives the 430 mph velocity under the tire. As usual Bernoulli is right, high velocity = low pressure. If the tire were in contact with the ground then the air flow would be blocked, i.e. low velocity, and the area right in front of the tire would be what I would expect, high pressure. I think you need to take another try at it with the tire in contact with the ground, which is the usual case with most Bonneville cars. (if we are lucky!)

Rex
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: WOODY@DDLLC on October 28, 2011, 08:57:16 AM
Buddy, I will elaborate some later. This was just a teaser!

Rex, you and Sr Bernoulli are both right and wrong.  :?

You other lurkers chime in too or PM me and I will try to respond to all!

Headed to Maxton this morning for the grand finale this weekend!  :cheers:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on November 02, 2011, 07:02:29 PM
Buddy, I will elaborate some later. This was just a teaser!

Rex, you and Sr Bernoulli are both right and wrong.  :?

Ok Woody, you're going to have to explain the above comment!

On the fenders, how much of the tire do I want to cover-as much as possible?

How much 'clearance' do I want from the fender to the tire? :?
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: WOODY@DDLLC on November 03, 2011, 09:14:30 PM
Rex, the tire is embedded in the surface. This is a 2D slice where the air can get around the tire but not under it. So you were wrong about the tire in the surface but right about the flow around the tire! Good eye! The 'jets' and vortices around the bottom were first identified by Fackrell and Harvey in 1973.

For an up to date study see: SAE 2007-01-0107, Fig 12 & 13 (SP-2066).

Regarding Sr. Bernoulli, he discovered that there is a relationship between pressure and velocity. (This is conditional but for our uses and understanding we'll let the PhD's worry about that!) The problem is the way we are taught his principle. All any fluid ever wants is to not be disturbed in any way. A bunch of Utah air molecules are banging off each other in a random, happy manner and reach this steady state condition that we call pressure. And then along comes a bunch of land speed racers to stick a lot of funny looking objects in the breeze and upset their randomness!  :-(

All the velocity changes we see are a result of the pressure differentials that result from an object moving in a fluid or a fluid moving around an object. Force, velocity and acceleration are all vectors which just means they have magnitude and (3D) direction. The force on the now not so random air molecules tells them which direction they are going to go, how fast they will go and how quickly they will get there. But it is a one-way relationship - pressure can change velocities but velocity does not change the pressure! Pressure is a force - velocity is not! However, for simple shapes like a venturi we can calculate the pressure if we know the velocity because they are joined at Sr Bernoulli's hip!  :-o

Not everyone buys this idea but it's my story and I'm sticking to it! BTW: These guys helped me confirm my suspicions: Understanding Flight, Second Edition by David Anderson and Scott Eberhardt. If you start to think about fluid flow strictly in terms of pressure differential little lights will start coming on. When I ask what do you measure on a flow bench the usual answer is CFM. Actually you measure pressure differential and you calculate CFM or velocity or density or .... :?

Buddy, the fender question is an old one. Flow around an open tire is very complex and is being studied and restudied all the time. If the tire is open the first thing is to make it smaller, then put discs on it and lastly maybe get the tire guys to make it more aero in cross section otherwise they are just in the wind! I would put a fixed aero fender around it. The fender may have slightly more frontal area but it will be cleaner and more slippery. Remember the pressures on the body will talk to the pressures on the tire or fender, too. A partial fender behind it would give a partial improvement. In an open fender the ratio of the fender volume to tire volume is the key factor. In other words make the inner fender as close to the tire as you can. You old salt dogs got any usable comments on salt packing in the wheel wells?  :?

Here is a rotating wheels video: http://www.deexchange.com/video/cfd-for-dex
Motorcycle liner aka long, round fender with two wheels. (Bonus link there to a scoop concept at 300 mph.)

I will be doing some studies for Buddy and Sparky. Thank Sparky for the tires shots here! Wendy Jeffries has asked me to do some articles for Bonneville Racing News about what it is I do. Buddy and Sparky have agreed to share some of their results for the articles. I hope you will enjoy them! I feel like this was the first chapter.  :cheers:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on November 03, 2011, 10:06:16 PM
Good info Woody! I'm going to have to 'study' this a while, and try and wrap my simple mind around it! :-D

I know this is an open ended question, but I'm looking for an answer.

The first pic was posted by Rex, and I'm guessing it would be a very good aero design for a wheel cover.

It may be hard for me to fabricate though.

The second pic is what I had in mind, although I don't know if the benefit will match the effort. Basically, it's two Harley FLH style fenders, cut and welded together, with inner and outer covers welded in to cover the tire.

Yes, I know I can't even draw in the paint program! Lol!

Is my idea even worth the effort, aero wise, or do I need to do something similar to Rex's rendition, to see real benefits?

Anyone got any real world experience, or theoretical data/ideas?
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: RichFox on November 04, 2011, 09:28:57 AM
Do you ever watch the telavision show. "Father and son fight and build very expensive motorcycles
"? They buy a sort of drum, full round and with sides on it. Then cut out what they want for a fender. I believe you can get them in several sizes. You might look into that.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Tman on November 05, 2011, 11:19:10 AM
Just do a search for fender blanks, here is one


http://www.thompsonchoppers.com/chopper_parts.asp
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on November 05, 2011, 02:11:03 PM
Rich, I'm trying to find something like what your talking about, but no luck so far.

Trent, I'm talking about using something like that. One fender, though, won't cover the tire sufficiently- it will take two grafted together.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: RichFox on November 05, 2011, 02:32:28 PM
Look here.    http://www.oldinc.com/oldysfbd.htm
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Tman on November 05, 2011, 02:34:48 PM
Rich, I'm trying to find something like what your talking about, but no luck so far.

Trent, I'm talking about using something like that. One fender, though, won't cover the tire sufficiently- it will take two grafted together.

That was just the first one I found in a search. there are several variations and the glass types like Rich posted. Shop around, price and quality vary.  :cheers:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Tman on November 05, 2011, 02:37:58 PM
Also a search for wheel spats got some interesting hits


http://batuhan-yapi.com/wheel_spats
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on November 07, 2011, 06:54:54 PM
It may not seem like it, but there is still lots going on with the build.

Pinkees is building the side panels.

Russ Meeks has the pistons, wrist pins, and valves, for coating. He also has the front plate, and top girdle, for Cermachrome.

Dale is polishing the head chambers, so that we can send them to Russ.

I've been trying to figure out some wheel cover/fenders, and an axle spat, for aero.

I've also been talking to Dema Elgin, about a roller cam. The older Harley solid rollers will work for us. This pic is a Sportster lifter I'm using for mockup. If we end up needing it to be a little longer, the pan/shovel lifter will work, and has the same diameter-.730

I had a lifter block, that had been repaired, so I sacrificed it for a mockup part. I didn't have anything in a .732 diameter, like I wanted, so I drilled it out with a .750 drill bit, and notched it with a chop saw. Rough and crude, but it will work for now.

We will need a 'plate', along the bottom of the lifter block, that will be notched, to act as lifter 'guides'. I notched this one, top make it easy to get in and out, and to use for a 'baseline'. I'll send it to Dale, and he can install it with the racing cam, and get final measurements. It won't be exact, as a new cam must still come from Dema, but it will work!

I'll take the final measurements, and the good lifter blocks, and get them altered to suit our needs.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on November 29, 2011, 12:03:28 AM
Woody is going to do some flow simulations for us, so I messed around trying to get the ports molded tonight.

The intake came out good, but I'll need to do the exhaust again- this foam stuff is a PITA!

These are from the #8 cylinder- you can see how flow restricted it is at the valve guide. Dale will do the race engine, and all the molds will then go to Woody.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Milwaukee Midget on November 29, 2011, 12:28:33 AM
Nice thing about a flathead is that you don't have the side loads on the valves that a rocker brings to the table.

I suspect that if you hog it out and go with some bullet nosed bronze guides, and straighten the ports out as best you can, you should be golden.

I've seen foam port molds like this, but I never knew what you use to make 'em with.

What is that stuff?
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on November 29, 2011, 12:37:25 AM
Chris, it's called FlexFoam-it X, by Smooth on. It's a pliable, 10lb foam.

My long term plan to 'straighten' out the ports, is in post #706, page 48- I'm simply going to have the 90 deg turn milled off of the block,port the bejeebers out of it, and weld a new intake/exhaust flange back in place.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: maguromic on November 29, 2011, 12:43:47 AM
C I'm simply going to have the 90 deg turn milled off of the block,port the bejeebers out of it, and weld a new intake/exhaust flange back in place.


Buddy, I am glad you don't have a week heart.   :cheers:  I cant wait to see it run!  Tony
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Jack Gifford on November 29, 2011, 12:51:37 AM
... My long term plan to 'straighten' out the ports, is in post #706...
Looking at post#706, I would have said that you've removed 45` of the original 135`, leaving a nominal 90` port runner. What am I missing?
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on November 29, 2011, 01:00:29 AM
Haha! Tony, I'm just not smart enough to quit flogging this worthless pony!

I should just get busy with the Jimmy, and make some real horsepower.

 :roll:...I keep looking at those IH Black Diamond engines- they have some serious promise- ever really looked at one?


... My long term plan to 'straighten' out the ports, is in post #706...
Looking at post#706, I would have said that you've removed 45` of the original 135`, leaving a nominal 90` port runner. What am I missing?

Nothing Jack- you're correct. I won't be able to totally straighten out the ports with milling- it will take some porting, epoxy, and even then, it won't be perfect.

I do expect a dramatic flow difference, though. Only one way to find out......
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: maguromic on November 29, 2011, 01:09:25 AM
Haha! Tony, I'm just not smart enough to quit flogging this worthless pony!

If we were smart we would find another drug that has a cure.  There is no cure for salt fever. Tony
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: RichFox on November 29, 2011, 10:43:54 AM
I have looked at Red Diamonds. I wonder about the new rule concerning "Engines that ran at El Mirage" Is this a ploy to out maneuver the 'Binder?
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on November 29, 2011, 04:47:58 PM
Finished the exhaust mold today,( black is intake, white is exhaust),and mailed them off to Woody. I'm very curious to see what his model tell us.

Dale did extensive port work in the constricted area, and that port work, along with the huffer, is what we are banking on!

 I also went to Pinkees, to check on the panels Erik is making. They will be done tomorrow or the next day! We had to give up a little aero, to be able to mount fenders, if we wish. I'm thrilled with how they turned out!

Gotta go pack for work now!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Tman on November 29, 2011, 05:20:23 PM
Looking good my friend!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: WOODY@DDLLC on November 29, 2011, 06:59:06 PM
Buddy those ports are pretty fugly!   :|  I'll be like the guy with the glass eye and keep an eye for them!  :-D
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on November 29, 2011, 07:03:14 PM
Buddy those ports are pretty fugly!   :|  I'll be like the guy with the glass eye and keep an eye for them!  :-D


.....and that's why every flathead I've ever seen is port restricted, not lift/valve restricted!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: vintagehotrod on November 29, 2011, 09:32:55 PM
are you ready for the dyno yet/ should I order some kitty litter? the build looks awsome, cant wait to pull the trigger on this one
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on November 29, 2011, 09:40:42 PM
Hi John!

We just got the pistons and valves back from Russ Meeks- they are now coated and ready to go!

We're waiting on the top girdle, and front plate, to be Cermachromed-they should ship Friday. We need to make a collector system for the exhaust, and assemble the engine.

I'm really hoping to see you about the 3rd week in January. We'll run the setup we have, and see what the numbers say.

I'd like to be able to dyno it again, before El Mirage, with the roller cam setup, for comparisons sake.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: vintagehotrod on November 30, 2011, 11:13:46 AM
sounds like fun
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on December 04, 2011, 06:39:49 PM
Dale got the port molds done on the Bonneville engine today, and now they go to Woody for comparison.

The bottom, and the left, are the intake ports(#8).It's easy to see, even in the pics, how much the 'restricted' area was opened up.

We'll share all the results from Woody here.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on December 05, 2011, 11:09:06 AM
Wooo-hoooo! :-D

Now it's time to assemble the FlatCad! We'll put the engine together with what we have, and dyno it. If we have time to swap cams,and install the roller setup, then dyno the car before El Mirage, we will. If not, it can happen between El Mirage and Bonneville, and we can run whichever setup produces the best results. The 'spare' cam may be a good thing for a 'spare' engine!

I need a tall deck BBC dizzy with a MSD box, that can reference boost.

Anyone have one that they want to trade, or loan us?
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on December 07, 2011, 08:58:21 PM
Colin finished the first run of 4-71 blower manifolds, and they are nice! :-D
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on December 07, 2011, 09:01:04 PM
He also made a few tri-power setups, although he wasn't thrilled with some of the casting, and welded them up.

Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Tman on December 07, 2011, 09:22:51 PM
Good looking stuff!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Stan Back on December 07, 2011, 09:49:22 PM
That ought to be the world supply.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Jack Gifford on December 08, 2011, 12:36:45 AM
I'll display my ignorance- are those manifolds to fit "any old" Cad flat V8 or just those modified like yours?
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Dr Goggles on December 08, 2011, 12:48:08 AM
tidy lookin stuff Buddy. :cheers:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 4-barrel Mike on December 08, 2011, 01:06:48 AM
I'll display my ignorance- are those manifolds to fit "any old" Cad flat V8 or just those modified like yours?

They're being built for "any old"

(http://a5.sphotos.ak.fbcdn.net/hphotos-ak-ash2/150065_166112906761888_100000895399459_315370_3665295_n.jpg)

I think they have a number of preorders.

Mike
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: saltwheels262 on December 08, 2011, 08:29:06 PM
they are very nice looking manifolds, absolutely.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Kiwi Paul on December 09, 2011, 12:39:40 AM
I`ll have to hit Dennis up for a ride in that Modified after he gets the drive system finished.....if I`m not too shaken up afterwards maybe I can give a coherent torque/horsepower/seat of the pants report... :-D :-D
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on December 09, 2011, 07:41:27 AM
Paul, we'll need a preformance report after you take that ride!

I would think it would make just under 200hp-with the long stroke and boost, it should be a torque monster and preform well! :cheers:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on December 11, 2011, 10:06:12 PM
Engine assembly has begun!

Dale installed the crank, rear seal assembly, and the girdle today!

The pistons should arrive from Russ Meeks tomorrow.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on December 19, 2011, 11:41:45 AM
I received an email from BoredandStroked today, so I thought I'd share the engine update:

·         Made good progress on a lot of things

·         All parts came in – just waiting on the heads, but have plenty to do in the meantime.

·         You were right on the bright silver coatings – looks fantastic as really sets of the red!

·         I worked on the rear seal plate – made gaskets, got everything mounted and the seal was too tight on the crank flange.    There went about 3 hours of work!  So, I took it all apart and I’m going to relieve the back of the plate a little more to allow the seal to flex a bit more.  Only bad news – costs us a new seal  ($45 a pop).   This was one of those 1 step forward,  1 step back deals.   Good news – everything fits on a gnats ass – just too tight and I don’t want to burn the seal out of it.

·         Switched gears to the cam stuff.   Made a temp gasket and mounted the timing plate – then started into the tedious process of setting up cam thrust plates, Torrington bearings, etc.   One thing I didn’t like is that the came lobes are not centered in the lifters.   Was wondering if it was what Joe Panic did – or the stock cam, etc..   Took everything off and put the stock cam back in the block – it too is off quite a bit (especially the front 4 cylinders) – guess that is the way Cadillac made them.  Obviously we can’t “fix” the cam itself, so I did work on the thrust system to move the cam forward about .060 – which helps.   We should consider this before you have the other roller core ground – may have them give me more clearance on the front thrust surface to move the cam forward even more.    (Didn’t want to rework this cam – as it has been heat treated – so I modified the thrust plate instead.)

·         I then spent a bunch of time making a thick thrust washer to exactly set the end-play on the cam.  Essentially, instead of allowing the thrust plate that Don made to stop the cam from coming forward (out of block), I’m using the roller bearing in the mag drive to control forward thrust.   Then I’m using a special Torrington bearing to control rear thrust (in addition to the Donovan brass washer).   This way, we have no metal on metal thrust surfaces and the cam will stay exactly where I have it.

·         I used my surface grinder to exactly size the thrust plate and clearance shim.

·         I have two Torrington thrust packs ordered from Jegs – will pick them up this morning.  (I was using a temp one for setup yesterday – isn’t the right diameter).  We’ll have a spare one in case we need it.

Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on December 19, 2011, 11:50:05 AM
Russ Got everything coated, and it all looks great!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on December 19, 2011, 07:50:14 PM
Does anyone happen to have contact info for Kenny Kloth?

I'd really like to talk to him about those big roller cams he ran. :-D
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: fwillyj on December 19, 2011, 08:43:36 PM
-Kenny's cell phone is 1-801-694-7396
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: maguromic on December 19, 2011, 09:37:29 PM
Buddy, You know Dema did his cams.  :cheers: Tony
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on December 19, 2011, 10:19:12 PM
fwilyj-Thank you very much!

Tony, thanks! That's one of the things I was going to ask him. I received a couple of pictures of one of his cams, and it's crazy-lots of lift, and the duration is unbelievable!

When I was at Bonneville, I kept hearing Dema's name from almost everyone running a vintage engine. Dema is out until the 9th, but said we would get on the roller cam then! It will be interesting to compare my current cam with what Dema produces!

Merry Christmas, Everyone!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on December 20, 2011, 10:20:33 AM
Here's the latest story from BoredandStroked- and man, he can tell a story!

"So, I start looking at the cam, looking at a valves, looking at the lifter blocks and decide that it is possible for about 3 out of 4 valves to be in the block and still slip the lifter block in (only one lobe is 'up' and will interfere). On the 4th valve, I'll assemble it and then make a special valve spacer (goes under the open valve head on the deck) - to hold it open so I can slip the lifter block in AFTER the valves, springs and keepers are in. Seems like a plan . . . but wait, the plot thickens - just like my waist . . .

Okay . . . but how the hell am I going to compress the springs and assemble the springs, retainers and keepers? There is no obvious way to compress the springs and get the keepers on! So I stare at it for awhile longer and decide that Cadillac must have made special tools - so I'm going to make a special 'Spring Compressor' tool! Got my imagination going - God gave me a brain, so I best try to use it.

So - I decide to create a cool little tool the has a bottom piece that fits over the cam lobe (which keeps it centered), has a cutout radius to follow the cam shank diameter (1.00"), then a bolt to use to compress the spring, then a special 'Top Cup' that has a shelf in it to hold the retainer.

I made the cup piece on the lathe - then welded a bottom on it.

I used the mill to cut a window out of the side of the cup - so I can get the keepers in. Also, the cup will save my butt when I drop keepers . . . as you know you will and they can hide in all sorts of places in the bowels of the engine.

So here yah go - my 'Compress O' Matic' tool - fresh from the lathe, milling machine and tig welder."

Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on December 20, 2011, 02:08:55 PM
Ok guys, we can use a little help here! Woody is going to do some computer simulation port flow work for us.

We have been unable to get scans of the port molds we have. We need to get them scanned into a usable 3-D CAD file.

If you can help us, please PM me!

Thanks in advance!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: maguromic on December 20, 2011, 02:14:06 PM
Buddy, Give me a call. I am only around for the next few days, then off to our Asia office. Tony
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Anvil* on December 21, 2011, 06:25:24 AM
Just a comment that it is fairly normal for a lobe to be offset from the lifter centerline. The intent is to rotate the lifter slightly as it moves over the nose of the cam.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on December 21, 2011, 10:24:14 AM
Anvil, I agree with you.

Based on the fact that I'm having a roller cam made,  now is the time to get everything set up to have it centered correctly for roller lifters.!  :-D
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on December 22, 2011, 01:09:05 PM
I just spent the last 1/2 hour talking to Kenny Kloth. What a neat guy!

Dema didn't grind his cam, but did spec it out after Kenny ran it.

We talked about the flatheads, and he was already aware of mine. He gave me some great info, both on the engine, and transmission. I had no idea that he had trashed Muncie trannies 2 years in a row!

I'm going to have to think about this Muncie deal.....
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: GH on December 23, 2011, 09:32:23 AM
Buddy, go with the Jerico, you will not have any trouble.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on December 27, 2011, 04:14:52 PM
Sorry about posting again, but I just figured out I posted on the old forum!

Thanks Gary! I'll see what the finances look like!

Pinkees is done with the panels!

Here is a drawing of the axle fairing we're contemplating.

Have a Happy New Year!  :cheers:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Peter Jack on December 27, 2011, 04:33:08 PM
And it looks just as good on the new forum! :-D :-D :-D

Pete
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Stan Back on December 27, 2011, 09:39:32 PM
What about the wheel pants?
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on December 27, 2011, 09:53:04 PM
Thanks Pete!

Stan, money may dictate that I wait until next year for them. I'd like to have them, but I'll have to wait and see....

A new hydraulic clutch system, stronger tranny, and engine management system for El Mirage take precedence.

I want to try and control detonation, so I'm switching classes for El Mirage, to try and get a feel for the engine. I'll run a MSD box., and retard timing with boost, in the XXO/BGALT class.

I'll try and get a pass in with the XXO/BCCC configuration, if the car runs strong.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: LittleLiner on December 27, 2011, 11:02:05 PM
PM sent . . .
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on December 29, 2011, 09:42:02 PM
Thanks Art!

Littleliner was kind enough to point out that I would need front fenders to run XXO/BGALT at El Mirage. Bobby Sykes concurred!

So, the fenders are going on for that class, and we'll still run XXO/BCCC, without fenders, if the car is running good. That should give us a good baseline, and be a ton of fun! :-D
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on December 31, 2011, 02:01:35 PM
I've been concerned about the Muncie holding up behind the FlatCad. I found a Liberty Ford toploader crashbox, with a Hurst Ramrod inline shifter, complete with slave and throwout bearing. I think it should work a lot better!

Gearing is 2.78, 1.93, 1.36, 1.0 .

Now I just need to find a Ford FE SFI bellhousing!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on January 01, 2012, 11:02:39 AM
Ok, I think I have all the changes for the year planned out, with the exception of the exhaust.


Where in the world should I run the exhaust out of this car??!! :?
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: SPARKY on January 01, 2012, 11:49:06 AM
Like a conventional Turbo sustem in Reverse, slightly Up, forward diagionaly, down and back.

Buddy think Monza then!!!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on January 01, 2012, 12:09:38 PM
Sparky, I have no idea where that would end up, exactly, but it's good to see that you're in good spirits this year! :cheers:

I'm actually debating running out the lower sides, blowing the exhaust down the lower portion of the car toward the rear, or simply going straight out the rear of the car.

Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Rex Schimmer on January 01, 2012, 06:58:56 PM
Buddy,
Are the second gear dog rings as bad as they look in your picture?

Rex
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on January 02, 2012, 10:27:45 AM
No Rex, they're not. Just a bad pic angle, I guess.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on January 04, 2012, 04:06:54 PM
Because we're going to run an HEI and engine management, and therefore switching classes for El Mirage, I'm thinking of adding an alternator. I'm afraid the HEI, gauges, fuel pump, and electric chiller water pump will be too much of a drain on the battery.

The engine layout is done, and there is not much room to add anything else. In addition, we will not need the alternator in vintage class, with the magneto, so I don't want to spend a lot of time and effort on this.

I'm leaning towards a mount on the rear end, and running it off of a pulley at the driveshaft. Any one run one like this, or have experience with this setup?
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Queeziryder on January 04, 2012, 04:33:31 PM
Hi 38Flattie

I did a system on a friends drag race car using a small motorcycle alternator off a Kawasaki ZX10 which gave approx 15A at 13.8V
It was self generating and regulating, but did need a disconect or would keep the engine running even if you switched off the MSD.
It was approx 6" in diameter and we ran it off a standard pulley at engine speed with no problems.

You might be able to get a small alternator off a Jap import that would easily do the job for you.

HTH
Neil
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on January 04, 2012, 04:48:19 PM
Thanks Neil- I'll keep that option open!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Peter Jack on January 04, 2012, 08:09:55 PM
Simple single wire alternators are rather common on oval track cars. You can use a larger pulley on them so they don't absorb as much power and they're still adequate for keeping the battery charged. With what I've seen of your build so far I don't think designing a mount and drive system will be a challenge.

Pete
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Rex Schimmer on January 05, 2012, 01:21:51 AM
Buddy,
Wouldn't it be easier just to double or triple the batteries and avoid all of the hassle of an alternator? No way could you drop the voltage on a set of 2 or 3 good batteries wired in parallel. Back to the pits and a good charge and you are ready for the next run.

Just a thought.

Rex
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on January 05, 2012, 05:46:33 AM
Yes Rex, it would be easier! Guess I was over thinking the issue-thanks!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Peter Jack on January 05, 2012, 06:32:01 AM
Isn't over thinking what most of us as racers specialize in???  :roll: :roll: :roll:

Pete
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on January 05, 2012, 06:35:14 AM
Isn't over thinking what most of us as racers specialize in???  :roll: :roll: :roll:

Pete

 :cheers: :cheers:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: SPARKY on January 05, 2012, 09:21:42 AM
most water pumps and alts function best at not over about 5000 rpm shaft speed.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on January 13, 2012, 04:04:26 PM
I just got back from Pinkees, where Erik had mocked up the axle fairings we were looking at.They are a lot bigger than I thought, and now I'm not sure that they might not cause more harm than good!

Erik thought switching to a tube axle might help, and going with quarter eliptical springs?
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Rex Schimmer on January 14, 2012, 01:02:15 AM
Buddy,
The fairings look great from the front but it is the back side that is important, what do they look like?? Remember that even if the fairing adds frontal area if it is don correctly and its Cd is sufficiently smaller it will be better than all of the suspension stuff hanging out in the air.

Rex
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on January 14, 2012, 06:01:12 PM
Rex, I think you're right, in the fact this this would work, if it were done right. Unfortunately, I don't know enough about aero to insure that it gets done right. I'm going to step back for a bit, and study up on what I need, then attack it again.

In the mean time, I'm going to concentrate on getting the changes done to the car, that we need to run it- new transmission and driveline, different fuel and water system,mounting the parachute on the car, different pushbar, and different brake and clutch pedals. We struggled with the cable clutch setup last year, and now will have a hydraulic one.

Of course, we still need to get the engine assembled and on the dyno!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 55chevr on January 14, 2012, 08:50:49 PM
Looks like the Miller front wheel drive fairings from the 30-s
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on January 16, 2012, 07:22:45 PM
55chevr, I just spent the last hour looking at Millers! :-D



I'm still looking to get better aero, and thought about a narrower tire. Can a tire like the Goodyear D1445, at 2.5" width be used? I can't find anything that tells me if they will handle the weight.

Garry Odbert was kind enough to offer me some aluminum racing spindles, so that I could get rid of those rotors, and clean the front end up some, so tires like this, if they will handle it, would sure be nice!

Speaking of Garry, he's been doing a lot of port work on his Caddy flathead. He's up to 180 CFM on all his intakes, and feels he can get some more!  :cheers:



Garry also picked up a cam blank from Joe Panek, and is also going down the Harley roller lifter road.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: desotoman on January 16, 2012, 08:04:29 PM


Can a tire like the Goodyear D1445, at 2.5" width be used? I can't find anything that tells me if they will handle the weight.




Buddy,

I like you and don't want to see anything happen to you or anyone else who drives your car. With that said I would never ever consider that tire for the front of any car except a Dragster that travels the quarter mile.

Tom G.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on January 16, 2012, 08:08:26 PM
Thanks Tom!

I kind of thought that, after looking around and not seeing cars running them.

It sure would be nice to find some acceptable, safe, narrow tires, though!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on January 16, 2012, 10:05:33 PM
Dale got the valves installed, and they might be the biggest valves ever seen in a flathead! Russ Meeks coated everything for us, and they're nice!

And of course, Dale had some 'rocket fuel' on hand!

Valve train is Comp Cam, with Manly valves, 1.94" intake, 1.78" exhaust-140 lbs on the seat (installed height of 1.8") and 290 open.

Pistons are next!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Jack Gifford on January 16, 2012, 11:18:34 PM
I'm enjoying looking at your work.
Are the chambers top-secret? (sorry for not searching back through posts). I'm curious whether they might resemble what I carved from billet for a couple of garden tractor pullers- much-modified Kohler 16 HP flatheads on alcohol. I think the claimed 100 HP was a WAG, but they were happy with the heads.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on January 17, 2012, 12:05:37 PM
Ok, I said aluminum spindles, but I meant hubs!

Pontiac Jack, I won't show the chambers until after we try them, but think Harley KR chambers.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Peter Jack on January 17, 2012, 02:47:22 PM
I'm much happier hearing hubs than spindles. Keep up the good work!  :cheers: :cheers: :cheers:

Pete
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Jack Gifford on January 18, 2012, 12:54:42 AM
... think Harley KR chambers...
Stock KR chambers are, um, quite mundane; unless there's some "massaged" form that you're referring to? While keeping the original gasket-outline on the Kohler head surfaces, I managed to undercut barrel shapes around the walls of the valve pockets- for maximum flow improvement with minimal chamber volume increase. I ground radius-end toolbits for the offset boring head of my manual mill, for more consistent results than hand-die-grinding (although consistency would be much more important for a multi-cylinder like yours, than for a one-lunger). I just wish that my customers had followed through with flowbench time to science-out the seat area details; I suspect there's much to be learned there.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on January 18, 2012, 10:24:18 PM
Do you have any pics if the work done on the Kohler heads?

Yes, the KR chambers are 'mundane', in appearance,but appearances are often deceiving!

The KR head design breaths well, and with some massaging, I suspect they are as good as anything out there. Look at Navarro heads-he has at least one design based on the KR.

Although, Bob Brooks has a dual plug set, of  Aussie designed chambers, that I'm curios to see results from!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Jack Gifford on January 19, 2012, 01:07:51 AM
I doubt that I have any pictures, but I'll try to remember to look.
What's the depth of the block porting?
Are you close (literally and figuratively) to someone with a flowbench? Has he ever tackled a flathead- setting up the whole block/head assembly on the bench?
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on January 19, 2012, 08:23:05 AM
I searched everywhere, and was unable to find anyone willing to flow it. Joe Abbin flowed a stock port fior us, but that's as far as we got.

We'll just have to see what the dyno tells us, and go from there. I wouls like to get it on a flow bench, as I suspect we may have some HP hiding there.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: gas pumper on January 19, 2012, 11:16:57 AM
I quess the problem with guys that have flow benches it that they are just concerned with flowing heads. You need to find someone that wants to get involved in setting upa block with the head on the bench to flow the combination, right?

So you need to find a flathead guy that has a flow bench.

Do the 1/4 midget and JR dragsters still run flatheads? yup. That's where you need to look. There's some big bucks spent on the kid's hobby racing.

Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: desotoman on January 19, 2012, 03:16:04 PM
You don't need a block to flow a head. If you have access to a junk block cut one cylinder out of it. Skill saws work great with a cutoff saw blade, don't ask how I know. LOL.

But now I will throw a curve-ball out. Since you are supercharged, pressurize the intake, your results may vary from typical suction in a cylinder. Just something to think about.

Tom G.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on January 19, 2012, 08:08:42 PM
Tom, I agree that we really don't know how the supercharger will effect flow- we only know that we will pack more air in the chamber.

I wanted to get the ports flowed, so that we could get the most out of the port work. All 4 intakes on one side are different, so it's important to be able to get numbers on all, and try and 'even' out the flow.

I have junk blocks, and a single cylinder head chamber that I could get tested, to compare this chamber design against others. Until I can find someone willing to do all the ports, though, I feel like I will be wasting the effort.

Maybe I'll build a flow bench next winter....
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: dw230 on January 19, 2012, 09:22:14 PM
To refresh your memories - Tom worked with the late Barney Navarro on flow work with flatheads at the shop in Glendale, CA. Ask Tom the right questions and you will get the answers.

DW
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on January 21, 2012, 05:00:06 PM
Good point Dan! Tom? Tom!? Lol! :-D


I received the aluminum hubs from Garry today, and they look great! This will allow us to get rid of the Chevy hubs and rotors.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on January 21, 2012, 06:02:06 PM
Guess I forgot to mention the plans for the water.

We're going to take a page out of the 50's, and introduce water into the engine through the casting plugs, or freeze plugs-whatever you want to call them! We'll probably just do the back two plugs,on each side, where the heat will be the biggest issue. Also, the front motor mount makes it hard to get to the front one.

This is how Garry ran his, and how the engine that ran Bonneville (pictured) in the 50's, was done.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on January 22, 2012, 08:41:16 PM
Damn, it's starting to look like an engine!
 
Dale sent me these pic updates, of work accomplished this weekend!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: BoredAndStroked on January 22, 2012, 09:23:11 PM
You don't need a block to flow a head. If you have access to a junk block cut one cylinder out of it. Skill saws work great with a cutoff saw blade, don't ask how I know. LOL.

But now I will throw a curve-ball out. Since you are supercharged, pressurize the intake, your results may vary from typical suction in a cylinder. Just something to think about.

Tom G.

Hey Tom . . . how the hell are yah!   Are you by chance going to make it to Bonneville this summer - would be great to see you again . . . has been about 20 years.   Let me know and we'll be sure to hook up.   We are planning to go to El Mirage in the spring - will keep you posted on that as well.   Who the hell would think I'd end up in Ohio - just so I could get back to racing on the West Coast.   But Hell . . . we now have the 'Wilmington Mile' -- out my way . . . gives us some new possibilities!

As far as the ports go -- given that we're blown,  the supercharger can overcome a lot of 'flathead sins' . . . the more port volume the better for what we're doing.

Dale
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on January 22, 2012, 10:16:36 PM
Not as long as the Buicks, but still pretty long rods!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: desotoman on January 23, 2012, 11:39:18 PM

Hey Tom . . . how the hell are yah!   Are you by chance going to make it to Bonneville this summer - would be great to see you again . . . has been about 20 years.   Let me know and we'll be sure to hook up.   We are planning to go to El Mirage in the spring - will keep you posted on that as well.   Who the hell would think I'd end up in Ohio - just so I could get back to racing on the West Coast.   But Hell . . . we now have the 'Wilmington Mile' -- out my way . . . gives us some new possibilities!

As far as the ports go -- given that we're blown,  the supercharger can overcome a lot of 'flathead sins' . . . the more port volume the better for what we're doing.

Dale


Hi Dale,

Good to see you posting. It has been awhile hasn't it. :-)  I am doing good, thanks. Glad to see you helping Buddy on the Flatcad project. Yes I will be going to Bonneville this year, and will defiantly look you guys up, but if you are coming out to El Mirage, I will see you there first. Keep me posted. If you guys get the right cam in the Flatcad I think you will make some great Horsepower, and set many records.

I wish you guys the best.

Tom G.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Milwaukee Midget on January 23, 2012, 11:59:21 PM
Not as long as the Buicks, but still pretty long rods!

What kind of rod to stroke ratio are you at?
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on January 24, 2012, 09:03:06 AM
Not as long as the Buicks, but still pretty long rods!

What kind of rod to stroke ratio are you at?


Chris, we're at 1.89!  Rod is 8.75", and stroke is 4.625"
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: desotoman on January 24, 2012, 01:45:19 PM
Buddy,

What is your deck height?

Tom G.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on January 24, 2012, 04:15:45 PM
Tom, Lately, I've seen deck height mention two different ways
.
What I call deck height is crank centerline to the block deck. That is 13.15" :-o

The other reference to deck height I've seen is the space between the piston dome and the combustion chamber, at top dead center, without a head gasket.

That distance is approximately -.024"- -.020", with squish being .036"-.040", with a .060 copper head gasket. I say approximately, because we just had the heads and pistons coated, and installed the pistons. Dale has not yet had a chance to measure everything, after the coating and installation.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: gearheadeh on January 24, 2012, 06:46:20 PM
Tom, Lately, I've seen deck height mention two different ways
.
What I call deck height is crank centerline to the block deck. That is 13.15" :-o

The other reference to deck height I've seen is the space between the piston dome and the combustion chamber, at top dead center, without a head gasket.  is this called "compression Height"?
That distance is approximately -.024"- -.020", with squish being .036"-.040", with a .060 copper head gasket. I say approximately, because we just had the heads and pistons coated, and installed the pistons. Dale has not yet had a chance to measure everything, after the coating and installation.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on January 24, 2012, 07:19:42 PM
Well, I always thought compression height was from the centerline of the crank, to the top of a piston, if its a flat top, or the point on a piston where it starts to curve, if it's a dome piston.


However, with the recent articles I've read, I no longer understand what is being called what! :?

I've also seen CH referred to as the distance from wrist pin centerline to piston top.

I think Dale calls CH the distance from wrist pin centerline to the deck.

I guess it's whatever you want it to be!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Stan Back on January 24, 2012, 07:39:00 PM
Buddy --

Read the thread about roll bars mounted in unibodies if you really wanna get lost.  Least I did.  Almost ended up in Riverside.

Stan
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Peter Jack on January 24, 2012, 08:17:13 PM
Ya gotta look up every once in a while Stan!!!  :-D :-D :-D

Pete
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: desotoman on January 24, 2012, 09:31:11 PM
Well, I always thought compression height was from the centerline of the crank, to the top of a piston, if its a flat top, or the point on a piston where it starts to curve, if it's a dome piston.


However, with the recent articles I've read, I no longer understand what is being called what! :?


Buddy,

You gave me what I asked for, Thanks. This chart might help.

Tom

Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: maguromic on January 24, 2012, 10:01:50 PM
Buddy, Your engine looks great, great to see the progress! Tony
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on February 03, 2012, 12:01:01 PM
Well, I had the wind taken out of my sails today!
 
Chris had made a prototype head chamber, so that Joe Abbin could do the initial flow test.
 
Garry Odbert has been porting and testing his Caddy flathead, and getting 185-187 CFM at .500 lift, with a stock head, with the valve pockets cut to allow .500 lift. Garry offered to flow our head, for comparison.
 
Here are the numbers-intake side at .100 lift 64cfms lift, @.200- 123cfm, .300-150cfm, 400-163cfm, .450-166cfm, and .500-166cfm.

Garry reported a good, smooth airflow, which was about the only positive news!

In addition to disappointing flow, Garry did a dye test, and it looks like fuel is all in one 2'' spot, centered over the exhaust valve, unlike some heads, we placed the spark plug over the intake valve! Garry is going to send a pic this evening.


So, I'm pretty confident that no matter what the engine does on the dyno, we've left some HP out of the engine. Garry's port are not identical to ours, but that is only part of the equation.

We'll get it on the dyno, but I'll still be feeling disappointed in not getting more testing done prior to getting parts made. Ideas are good, but I'm kicking myself for not doing more testing! I'm definitely going to look at other piston/head options, for a major redo this fall.

Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Jack Gifford on February 04, 2012, 12:34:45 AM
Thanks for sharing those flow numbers. I had thought that the only meaningful testing would involve the block/head combination- how did you simulate the block/valve while flowing the chamber?
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on February 04, 2012, 07:13:41 AM
Jack, Garry is building his own Cadillac flathead, and has it heavily ported-185-187 CFM out of a flathead is fantastic flow!

I couldn't get my block to him, so he used his. I realize this isn't the perfect scenario, but it's better than nothing.


I'm still sold on the roller lifter cam, and am working on getting the setup finished.
 
Josh is converting a lifter block for the rollers. He is adding an aluminum block, .300 thick, 1.4" wide, and the length of the lifter block, bolted to the bottom of the lifter block..He's use 82 degree counter sunk Allen heads to hold the plates on, then will drill and hone the blocks for a .0015 to max of .002 lifter clearance on the diameter.
 
After they are honed, he'll 't' slot a cut into the bottom of the aluminum lifter plate, and into the lifter block. The 'T' slot should allow the lifter to go up into the lifter block until it is flush with the newly mounted aluminum plate.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: desotoman on February 04, 2012, 01:08:42 PM
Buddy,

Have you given any thought to a mushroom lifter cam? Just curious.

Tom G.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on February 04, 2012, 01:57:21 PM
Yes Tom, I have.

The current cam setup uses Chrysler/Dodge adjustable mushrooms (left in pic), with the head cut down to 1.260".



Why?
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: desotoman on February 04, 2012, 08:13:07 PM
Sorry, I guess I missed that part of the build. Good choice for lifters.

It has been many years since I researched the cams for flatheads but I remember the larger the diameter lifter you can get into the motor, the faster the rate of valve lift. Except for possibly a inverse radius roller cam, but most people don't want to grind those because the grinding wheels have to be so small. Those were some of the things I found out 30 years ago.

Tom G.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: jl222 on February 04, 2012, 11:52:50 PM
Well, I had the wind taken out of my sails today!
 
Chris had made a prototype head chamber, so that Joe Abbin could do the initial flow test.
 
Garry Odbert has been porting and testing his Caddy flathead, and getting 185-187 CFM at .500 lift, with a stock head, with the valve pockets cut to allow .500 lift. Garry offered to flow our head, for comparison.
 
Here are the numbers-intake side at .100 lift 64cfms lift, @.200- 123cfm, .300-150cfm, 400-163cfm, .450-166cfm, and .500-166cfm.

Garry reported a good, smooth airflow, which was about the only positive news!

In addition to disappointing flow, Garry did a dye test, and it looks like fuel is all in one 2'' spot, centered over the exhaust valve, unlike some heads, we placed the spark plug over the intake valve! Garry is going to send a pic this evening.


So, I'm pretty confident that no matter what the engine does on the dyno, we've left some HP out of the engine. Garry's port are not identical to ours, but that is only part of the equation.

We'll get it on the dyno, but I'll still be feeling disappointed in not getting more testing done prior to getting parts made. Ideas are good, but I'm kicking myself for not doing more testing! I'm definitely going to look at other piston/head options, for a major redo this fall.



  More boost and a big intercooler with water injection will help out the flow numbers :-D

              JL222
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: panic on February 05, 2012, 12:44:59 AM
I'm not sure how a KR translates into another engine.
The KR has both valves tilted in toward the bore as they approach the deck, but not as much as some automotive engines.
KR valves are also both inclined to the bore in the thrust axis by 4-1/2°, which sinks their seats in the wrong direction: against port flow. IMHO much of the development work was to cure this, especially the complex 3-dimensional shape between the valve reliefs near the bore.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on February 05, 2012, 07:04:55 AM
jl222, that's always an option! :-D


I'm not sure how a KR translates into another engine.
The KR has both valves tilted in toward the bore as they approach the deck, but not as much as some automotive engines.
KR valves are also both inclined to the bore in the thrust axis by 4-1/2°, which sinks their seats in the wrong direction: against port flow. IMHO much of the development work was to cure this, especially the complex 3-dimensional shape between the valve reliefs near the bore.


Panic, you're exactly right about the KR's angled valves. Cadillac has the same thing, angled at 6 degrees-one of the reasons we felt the KR chamber design would work on this. This is also one of the reasons for the heavy relief in the block.

Garry is going to modify the head chamber, and try and improve the flow.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on February 07, 2012, 02:56:45 PM
Ok, The prototype roller lifter bock is finished!

As soon as we verify the fit and measurements, and decide on what changes we want, if any, I'll get a set of them.


We ran a cable clutch last year, and are switching to a hydraulic slave setup for the crashbox,this year. The new pedal assembly, and firewall mods should be done Monday, and I'll post pics.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on February 10, 2012, 06:20:12 PM
Last year, we struggled with the clutch pedal. It's location was fine for the shorter guys, but a real PITA for Dale and I. With the new tranny going in, we wanted to get rid of the cable operated clutch, and use a hydraulic one.

Pinkess added a firewall recess, and hung some Wilwoods for me, while I was at work. Sitting in the car, I like the setup much better!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on February 15, 2012, 07:45:56 PM
Nothing exciting, but progress none the less!

I spent yesterday, and this morning, fabbing up new front shock mounts .They're now inside of the sheet metal, and other than the bottoms, out of the airstream. A little black paint, and I'll be finished!

Then I decided to install the new hubs. It should have been an hour job, tops, but not with my luck. It turns out that the bearings and races I need, 1.375" ID, and 2.5" OD, are non-existent-as in no one makes them. I was able to find 1.375" by 2.5625 setups, so I bought those, and dropped the new hubs at the machine shop. I'll be able to pick them up in the morning, and finish the job.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on February 16, 2012, 05:10:18 PM
Well, after messing around with the new hubs all morning, I determined there is more machine work to do, to make these fit. The spindle will need machined back 1/2" for the back bearing, and the hub will need the front bearing set in another 5/8", to fit correctly. I've got too much to do to try and get ready for El Mirage, so these are going on the back burner for now.

Anyone see a reason that I couldn't just machine the rotors off my existing hub, for now? I need to get rid of all the weight in the front that I can!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Stan Back on February 16, 2012, 05:54:37 PM
Apparently there's no free in free parts.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Stan Back on February 16, 2012, 05:58:22 PM
Just lookin' at them in the picture above looks like that would work.  Plus it looks like you'd still have a mounting point for an inner wheel disc.  The rotating mass would be a lot less, and the steel remaining would be close to the center and wouldn't make that much difference anyway.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on February 16, 2012, 07:30:22 PM
Free parts? Never works that way! Lol!

I don't see any reason not to trim the rotors off, so I'm going to try it.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: GH on February 17, 2012, 04:33:15 PM
Buddy, that's what I did on my Studebaker. The rotors were mid size GM, I had a machine shop turn the rotors off and just used the hub.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on February 17, 2012, 04:38:58 PM
Thanks Gary!

I just set the dyno appontment with John Beck, for March 12-13. So, I thought I'd do this:
 
http://www.jalopyjournal.com/forum/showthread.php?t=672239 (http://www.jalopyjournal.com/forum/showthread.php?t=672239)
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Jack Gifford on February 18, 2012, 12:41:09 AM
"Two piece" heads? :?

Since (you said) you had to lower the compression ratio, how come you didn't enlarge the heads' valve pockets for flow gain?
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on February 18, 2012, 10:27:27 AM
When we had the heads machined, we had only the Joe Abbin numbers to go off of. It was only when Garry flowed his head against ours, did we realize the issue.

Garry is doing some more testing for us, as we suspect the transfer area may need reworked. When we know exactly what we need, we'll 'trim' up the chambers.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on February 18, 2012, 06:26:35 PM
I received my FIRST ever (hopefully first of many) Speedweek timing tag today!

I know this is old hat for most of you, but I was excited!

The pics didn't turn out very well, but it sure is cool!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Milwaukee Midget on February 18, 2012, 06:31:10 PM
Congrats!

Get enough of those and you can lose the ballast.  :cheers:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: GH on February 19, 2012, 09:33:02 AM
Buddy, the RED ones are the ones you want.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on February 19, 2012, 06:36:50 PM
Buddy, the RED ones are the ones you want.

Baby steps, Gary, baby steps!

....and a blown Jimmy 12 port! :-D
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Stan Back on February 19, 2012, 07:38:30 PM
I guess you don't want us to read it.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on February 19, 2012, 07:59:51 PM
Haha! I took the pic at the house yesterday, now I'm back in PA. It says I was there, but did nothing memorable except show up and run!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Jack Gifford on February 20, 2012, 12:41:18 AM
I still don't see a "two piece head"? :?
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: RichFox on February 20, 2012, 11:44:12 AM
In order to machine water jackets in the billet heads there is a bottom piece which is in contact with the gasket surface and contains the combustion chamber, transfer passages and spark plug threads. Everything you see when you look at the bottom of a flathead. It is also machined for the coolent passages. The finned top half seals in the water jackets and looks pretty.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: BoredAndStroked on February 20, 2012, 10:51:00 PM
Okay - having trouble with attachments . . . maybe because I'm a newbie with attachments on this site.   So - if you see the same stupid thing 45 times, you'll know the reason.  ME!

==============


Monday Build Update:  Buddy has asked me to post some more pictures . . . here are the latest from this evening.

1) Finished the mounting of the crank snout support system -- uses a big roller bearing on the outside of the snout hub to take strain off of the crankshaft snout and also acts as sort of a '4th Main' for our 3 main FlatCad.   The crank hub goes on really tight - to reduce the chances of any run-out and/or any opportunity to wobble.   Once you put them on, you have to use a stout puller to pull them back off  (which I have).

2) Then I put all the blower manifold, intercooler and drive setup in place - to validate belt lengths and pulley options.   We can swap the lower-upper pulleys and switch over to a 48 driving 53 pulley setup, but if we want to run a larger upper pulley during breakin, we'll need a longer belt.   I tried to put on a 59 tooth upper pulley (next size I had from 53) - won't work.   We'll need to determine what pulley combinations, overdrive and belt we'll need for the dyno.

Attached is a picture - kind of looking a bit 'Bad A$$' now isn't it!   8-)    I have a lot to do in a short time - going to be a thrash in the next few weeks.

Dale

Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: BoredAndStroked on February 20, 2012, 10:54:47 PM
Here are a couple pictures of the head - you'll see how it is a 'clam shell' design:

Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: maguromic on February 20, 2012, 11:08:00 PM
This engine makes my man parts tingle.  :cheers: Tony
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on February 20, 2012, 11:18:56 PM
Tony, Dale was just 'teasing' you!

Here's a few more!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Milwaukee Midget on February 20, 2012, 11:42:44 PM
Hard to believe - but Tony, I've finally seen something sexier than your avatars on these boards.

Buddy, Dale - That's ONE BEAUTIFUL ENGINE!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: maguromic on February 21, 2012, 12:01:23 AM
Hard to believe - but Tony, I've finally seen something sexier than your avatars on these boards.

Buddy, Dale - That's ONE BEAUTIFUL ENGINE!

Like I said, it makes my man parts tingle.  You guys have built some serious  EYE CANDY. Tony
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Jack Gifford on February 21, 2012, 12:42:23 AM
Thanks for the two-piece head education. Wow... somebody's better with a manual mill than I am! :-D :-D

The snout support will undoubtedly help. With some foresight (or glancing at well-engineered ones) though, it could help much more; not much rigidity to a "plate on pillars". Just my two cents...
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Dr Goggles on February 21, 2012, 12:45:07 AM
We can swap the lower-upper pulleys and switch over to a 48 driving 53 pulley setup, but if we want to run a larger upper pulley during breakin, we'll need a longer belt.

Longer belt?......... what are ya gonna get , a conveyor belt?
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Koncretekid on February 21, 2012, 06:56:08 AM
Thanks for the two-piece head education. Wow... somebody's better with a manual mill than I am! :-D :-D

The snout support will undoubtedly help. With some foresight (or glancing at well-engineered ones) though, it could help much more; not much rigidity to a "plate on pillars". Just my two cents...
You took the words right out of my mouth regarding the rigidity of the "plate on pillars."  You could stiffen it up by replacing the "pillars" with a rigid rectangular plate on each side with three holes for the bolts.

Regarding the rest of the build, it showpieces the talent and dedication of the members of your team.  You are to be congratulated.  Of course it has caught my attention from the very beginning, because my first car was a '37 Chevy with a '57 Pontiac motor.

Tom
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on February 21, 2012, 08:00:47 AM
The snout support will undoubtedly help. With some foresight (or glancing at well-engineered ones) though, it could help much more; not much rigidity to a "plate on pillars". Just my two cents...

It's hard for me to argue the point. I'm not fond of it in the first place-I think it looks like a spider humping the crankshaft!

Still, we felt we needed it, and I think it will do the job.

It's an off the shelf piece from Fowler Engines, for BBC's. If it appears to be letting the crankshaft move, we can plate between the 'pillars', or make a stiffer one.

The engine is very tall, but sits so low in the car, it doesn't appear as tall when installed.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Rex Schimmer on February 21, 2012, 11:09:20 AM
Buddy,
That thing is a beast!!! Pretty, but a real beast. If it runs half as good as it looks you will make tons of HORSE POWER!!

Rex
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Tman on February 21, 2012, 12:39:42 PM
We can swap the lower-upper pulleys and switch over to a 48 driving 53 pulley setup, but if we want to run a larger upper pulley during breakin, we'll need a longer belt.

Longer belt?......... what are ya gonna get , a conveyor belt?

One of those people movers from the airport!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on February 21, 2012, 12:52:49 PM
Longer belt?......... what are ya gonna get , a conveyor belt?[/quote]

[/quote]One of those people movers from the airport![/quote]

Escalator belt? Lol!


Buddy,
That thing is a beast!!! Pretty, but a real beast. If it runs half as good as it looks you will make tons of HORSE POWER!!

Rex

We'll see in three weeks if it qualifies as a race engine. If not, I'll see if anyone needs a trailer queen engine! :evil:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 4-barrel Mike on February 21, 2012, 03:33:06 PM
Sweet engine!  Now, if you could find a vintage Cadillac roadster to put it in!   :mrgreen:

Mike
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Jack Gifford on February 22, 2012, 12:12:33 AM
... replacing the "pillars" with a rigid rectangular plate on each side...
Lateral stiffness is nearly as important as vertical. There appears to be enough elbow-room to enhance both.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: jl222 on February 22, 2012, 03:33:38 PM
  Great looking engine and work,can't wait to see and hear it at Bville.
  Is part of the breakin for the cam and solid lifters? there should be little or no boost at a steady rpm untill
you put a load on egine or blip the throttle.

              JL222
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: zenndog on February 22, 2012, 03:43:13 PM
That engine is impressive looking. Tower of power.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on February 22, 2012, 07:36:33 PM
  Great looking engine and work,can't wait to see and hear it at Bville.
  Is part of the breakin for the cam and solid lifters? there should be little or no boost at a steady rpm untill
you put a load on egine or blip the throttle.

              JL222

Yes, I want to get the cam and lifters broke in good, before we add too much load.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: BoredAndStroked on February 23, 2012, 10:35:41 PM
Thursday Evening Update: Magical Mushrooms . . . Psychedelic Man

I've just finished the work on the 'magical mushroom' lifters. We've replaced the stock hydraulic mushroom lifters with some flathead Chrysler mushroom lifters. I got the idea from Barney Navarro about 25 years ago - to put them in flathead Fords . . . but they actually work really nice in the FlatCad. The bigger the lifter base diameter, the faster the cam opening ramp can be (which is good on a flathead - no rocker arms to multiply anything!).

1) The length is just about perfect.
2) The body diameter is smaller than the FlatCad valve lifter blocks, so Buddy had the lifter blocks bronze bushed for me.
3) We have about .0015 clearance

The cam pattern was designed for a 1.260 lifter diameter, so I had to turn the bases of all of them down on the lathe - about .023 reduction in the diameter. As you can imagine, they're harder than hell, but good ole' carbide was able to cut them . . . just took a long time.

We have 20 lifters (4 spares) . . . glad this job is over . . . boring as all hell.  

Tomorrow I'll be fitting the lifter blocks, lifter block girdle supports and hopefully finishing the valves by sometime Saturday.

Chris is coming over on Sunday to help with the plumbing - probably while I'm working on the dry-sump mount (which is a real PITA).

Here are the lifters . . .
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: BoredAndStroked on February 23, 2012, 10:43:20 PM
That engine is impressive looking. Tower of power.

I like that quote  - 'The Tower of Power' . . .  we can only hope!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: zenndog on February 23, 2012, 11:26:02 PM
38- If you ever feel like trying it....call your tooling supplier and ask for ceramic cutting inserts for "hard turning", they cut hardened material just like it is regular steel. It is crazy to watch, like a welder throwing sparks, no cutting fluid is used, just dry. These A2-5 spindle noses were cut by hard turning, hardened first, then machined. Can't remember the hardness off the top of my head, good thing I have it written down, 86L20 Steel, heat treated 60 rockwell.

(http://i301.photobucket.com/albums/nn70/zenndog/ebay/IMG01293.jpg)

(http://i301.photobucket.com/albums/nn70/zenndog/ebay/IMG01294.jpg)

Sorry for the poor pictures.

That motor looks great, good luck with the break in and beyond.....
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Jack Gifford on February 24, 2012, 12:15:30 AM
... the cam pattern was designed for a 1.260 lifter diameter, so I had to turn the bases of all of them down ...
??? :? If the lobes care whether the foot diameter is "too large", then the lobe design is fubar. I could understand, if you needed to cut them down for clearance to block or whatever?
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: BoredAndStroked on February 24, 2012, 07:21:55 AM
... the cam pattern was designed for a 1.260 lifter diameter, so I had to turn the bases of all of them down ...
??? :? If the lobes care whether the foot diameter is "too large", then the lobe design is fubar. I could understand, if you needed to cut them down for clearance to block or whatever?

The cam would not have hit the foot profile out there (otherwise it would have been off the edge of the lifter), but I also wanted a smoother edge than they came with (as they were not turned/ground on the OD).   I'm sure I could have ran them "as-is" . . .
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: desotoman on February 24, 2012, 12:18:49 PM
  Great looking engine and work,can't wait to see and hear it at Bville.
  Is part of the breakin for the cam and solid lifters? there should be little or no boost at a steady rpm untill
you put a load on egine or blip the throttle.

              JL222

Yes, I want to get the cam and lifters broke in good, before we add too much load.

Buddy,

They will run without the blower belt for break in. Although it does look funny when the blower is turning and there is no belt attached. LOL.

Tom G.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Seldom Seen Slim on February 24, 2012, 12:26:33 PM
Wait a minnit-- hunh?  "...it does look funny when the blower is turning and there is no belt attached."  So forgive me -- I'm not a car guy -- but if there's no belt, what's making the blower turn?  Is the air moving through it that forceful that it overcomes internal losses in the blower?  I could see that in a turbo, maybe, but in a screw type blower -- hunh?
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: desotoman on February 24, 2012, 12:41:31 PM
SSS,

You bring up a good point and I should have clarified my post. Back in 1972 I built a boat motor with a 6-71 GMC supercharger but it had no teflon strips in it, and it ran fine with out the blower belt hooked up, and that is how I broke my cam in on that motor.  A screw blower should work also as there is no friction on the case the way they are made.

I don't have any experience with a GMC blower set up with teflon, so they may not turn as free because of the friction of the teflon against the case, so someone else will have to chime in on that type of set up.

I guess you could say the rule of thumb would be if you can spin the blower with you hand, the motor should run without the blower belt. This would be for a blower mounted on top of the motor. Others types that have 10 feet of intake tract might not work.

Tom G.  
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: BoredAndStroked on February 24, 2012, 12:54:46 PM
SSS,

You bring up a good point and I should have clarified my post. Back in 1972 I built a boat motor with a 6-71 GMC supercharger but it had no teflon strips in it, and it ran fine with out the blower belt hooked up, and that is how I broke my cam in on that motor.  A screw blower should work also as there is no friction on the case the way they are made.

I don't have any experience with a GMC blower set up with teflon, so they may not turn as free because of the friction of the teflon against the case, so someone else will have to chime in on that type of set up.

I guess you could say the rule of thumb would be if you can spin the blower with you hand, the motor should run without the blower belt. This would be for a blower mounted on top of the motor. Others types that have 10 feet of intake tract might not work.

Tom G.  

You can't really spin a newly stripped teflon blower by hand - they are very tight.  And, if you can easily turn a stripped blower - it probably needs new strips!

There really isn't an issue breaking it in with a blower - we just run a much lower pulley ratio (under-driven) and we're running at a fairly constant RPM once it gets started --> somewhere around 2,000.   As long as we're getting a lot of oil splash on to the lifters and cam and bore, it should break in properly.   Obviously we'll have the right break-in oil in it as well - with a lot of anti-wear additives.  (Like Brad Penn stuff).
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: BoredAndStroked on February 24, 2012, 12:56:25 PM
38- If you ever feel like trying it....call your tooling supplier and ask for ceramic cutting inserts for "hard turning", they cut hardened material just like it is regular steel. It is crazy to watch, like a welder throwing sparks, no cutting fluid is used, just dry. These A2-5 spindle noses were cut by hard turning, hardened first, then machined. Can't remember the hardness off the top of my head, good thing I have it written down, 86L20 Steel, heat treated 60 rockwell.


Thanks for the info - I've never used ceramic inserts, will have to give them a try!   I do know there is no way in hell I'd attempt to turn a chunk of 8620 at a hardness of 60 with carbide!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on February 25, 2012, 08:10:33 AM
Zenndog, thanks for the info!

Dale, great story about Navarro and the lifters- the engine is looking great!

Actually, Brian proposed this idea a couple of years ago, when Kevin and I were trying to figure out solid lifters:
http://www.jalopyjournal.com/forum/showthread.php?t=332457&page=13

Pete1 has came up with a square bodied roller lifter design, that shows promise-we may try them on the roller cam

I've been busy trying to get the changes done on the car, and looking for good aero mods. I want them to work, and at the same time, I want them to have the 'vintage' look.

I've settled on a modified version of fairings like the Lockhart car had.
,
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on February 25, 2012, 04:09:50 PM
Garry is making great progress on his Flatcad porting work, achieving 200 CFM on the #5 and ##6 intake ports. Now, he just has to match the other 6 intakes with them! :cheers:

Garry added a second intake gasket, .050" thick, and flowed our design again. The flow went from 166 CFM to 173 CFM- looks like it may be a transfer area issue. Garry is making some mods to the design, and will flow it again next Thursday.

Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: dw230 on February 26, 2012, 02:48:22 PM
Pleas refresh my memory - what class are you proposing to run with the wheel fairings?

DW
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on February 26, 2012, 02:51:00 PM
Dan, XXO/BVGCC

Did I miss something?
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on February 27, 2012, 12:16:39 PM
I can't find any 8mm belts longer than 70.55". I can't go smaller than a 53 tooth on the crank pully, due to the crank support.

Soooo, does anyone know where I can find a belt in the 72"-73" range?
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: RichFox on February 27, 2012, 01:14:08 PM
Might try     http://www.ebmmill.com/EBM_Mill_Elevator_Supply.htm  They have belts up to 175 inches or so.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: desotoman on February 27, 2012, 03:51:43 PM
Buddy,

RCD makes a belt you might be able to use.

Tom G.

1312-2000-075 is their part number.   

2000-8M-75 POWER GRIP RUBBER (250T, 78.7 X 3) BLOWER BELT    $259.00
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: bucketlist on February 28, 2012, 03:15:05 AM

I've been busy trying to get the changes done on the car, and looking for good aero mods. I want them to work, and at the same time, I want them to have the 'vintage' look.

I've settled on a modified version of fairings like the Lockhart car had.
,

I don't know if or how this would apply to LSR, but Forbes Aird discusses front wheel fairings in Aerodynamics for Racing and Performance Cars. Topic is stability at speed, CP needs to be behind neutral steer point for better stability in cross winds and to be self correcting if vehicle starts to get sideways. Additional side area at the rear is good, at the front is murder, and gets worse if the side area is steerable. Steerable front wheel pants banned by NHRA. This might bear looking into.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on February 28, 2012, 08:51:44 AM
Rich, Tom- Thanks!

Tony suggested http://www.jonesracingproducts.com/ , and they can take care of us! I'll order the needed belts today, and they will make them up!

The plan is to run a 53T on the crank, and we'll start with a 66T on the top, when on the dyno. We'll then work our way through a 59T, 53T, and a 48T, on the blower.

I'll also be taking a 46T, For Bonneville, to compensate for altitude.


I've been busy trying to get the changes done on the car, and looking for good aero mods. I want them to work, and at the same time, I want them to have the 'vintage' look.

I've settled on a modified version of fairings like the Lockhart car had.
,

I don't know if or how this would apply to LSR, but Forbes Aird discusses front wheel fairings in Aerodynamics for Racing and Performance Cars. Topic is stability at speed, CP needs to be behind neutral steer point for better stability in cross winds and to be self correcting if vehicle starts to get sideways. Additional side area at the rear is good, at the front is murder, and gets worse if the side area is steerable. Steerable front wheel pants banned by NHRA. This might bear looking into.

Yes, your concerns are well founded. However, if we can get a good design, that works, the endeavor will be worth it!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: RichFox on February 28, 2012, 11:58:22 AM
I don't buy blower belts. But the belts I do buy I get from the same industrial supply stores that most race shops get them from. And then mark them up a bunch. Bigger choice in length also. If I was buying blower belts I would have to have a very good reason explained to me to change my supplyer.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: dw230 on February 28, 2012, 01:03:20 PM
Nah, you are Ok Buddy. As long as you have met one of the other four critieria. Wheel pants alone will not get you into the class.

Chauvin Emmons used wheel pants on the front of his Modified Roadster in the 70s. He didn't like 'em, steered the car. Those pants went to Ken Walkey for rear wheel fenders on his lakester. That car went to Keith Young, back to Ken. Sold to Roy Creel and now is used by the Stewart Family.

DW
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Rex Schimmer on February 28, 2012, 03:56:27 PM
Wheel "pants" as DW calls them, probably need some real thought before designing. I would think that if you were going to rotate the pants along with the wheel/tire while steering you would want to make sure that the center of pressure of the shape was behind the king pin of your axle. This way any steering affect will try to straighten the wheel, kind of like caster. If the CP is ahead of the king pin then when you turn the pant shape wants to make the wheel turn more. Something to talk to Woodie about.

The other option, which I would think best, would be to make the pant wide enough so that it can be mounted ridged and the wheel would turn inside of it. This would make it bigger and you would have to restrict your steering angle but the pant would not want to steer the car.

Rex
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on February 28, 2012, 05:04:36 PM
Rich, I tried the link you supplied, but they didn't have the belt I need.

DW, Rex, Thanks! I'll probably not have the fairings/pants this year, but would like some next year. Woody is doing some port work for us, and I'll probably get him involved on this.

Dale has the lifters installed, with the bronze bushed lifter blocks! That is not a job anyone would volunteer for!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Jack Gifford on February 29, 2012, 01:31:41 AM
... Steerable front wheel pants banned by NHRA...
I don't know current-era NHRA rules. Is that rule worded so that full wheel discs (both inboard and outboard) are legal? What about a fixed-to-a-spindle inboard disc whose periphery sits in close proximity to a wheel's rim?
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: JonAmo on February 29, 2012, 10:26:31 AM
Buddy,

RCD makes a belt you might be able to use.

Tom G.

1312-2000-075 is their part number.   

2000-8M-75 POWER GRIP RUBBER (250T, 78.7 X 3) BLOWER BELT    $259.00

RCD does have this belt and is manufactured by Gates. This is a Polychain HTD belt. This belt has a significantly higher power rating due to the Aramid Tensil cords an polyurethane material over other belts. This also has superior racheting power over the tooth then lets say a GT2 Belt.

On the blower setup is it possible to change the smooth idler to a toothed idler pulley? A toothed idler gives the best protection against cord damage and can lead to longevity of the belt. Do not get me wrong smooth idlers may work ok but the bend over the apex of the curve can lead to issues (possible not definitive).

Jon
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on February 29, 2012, 10:33:41 AM
In order for us to run the pulleys we want on the dyno, we need 3 belts. The one we have is a 1760, and will work with the 46T, and 48T-one of which I THINK we will run at Bonneville.

The 53T will need a 1792 belt, and the 59T and 66T will need a 1840 Belt. The 53T-66T pulleys are only to break in the engine, and stage the boost up slowly on the dyno. It's probably being over-cautious, but it's what I have planned.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: dw230 on February 29, 2012, 01:29:26 PM
Jack G,

Wheel pants as discussed many pages ago in this thread are not addressed in the rulebook. Wheel disks, Moon type, both inner and outer are allowed. Inner disks mounted as descriped have been and continue to be allowed.

DW
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on February 29, 2012, 07:18:45 PM
On the blower setup is it possible to change the smooth idler to a toothed idler pulley? A toothed idler gives the best protection against cord damage and can lead to longevity of the belt. Do not get me wrong smooth idlers may work ok but the bend over the apex of the curve can lead to issues (possible not definitive).

Jon

Thanks Jon! Putting a small, toothed idler may be the way to go. I didn't even think about wear "over the apex of the curve". This would also allow for a shorter belt, and therefore be a win-win situation! :cheers:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Tman on February 29, 2012, 10:04:09 PM
On the blower setup is it possible to change the smooth idler to a toothed idler pulley? A toothed idler gives the best protection against cord damage and can lead to longevity of the belt. Do not get me wrong smooth idlers may work ok but the bend over the apex of the curve can lead to issues (possible not definitive).

Jon

Thanks Jon! Putting a small, toothed idler may be the way to go. I didn't even think about wear "over the apex of the curve". This would also allow for a shorter belt, and therefore be a win-win situation! :cheers:

Jon kinda knows of what he speaks, he works for Gates!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Jack Gifford on March 01, 2012, 12:32:40 AM
DW- thanks for the wheel disc info.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: JonAmo on March 01, 2012, 07:43:30 AM
On the blower setup is it possible to change the smooth idler to a toothed idler pulley? A toothed idler gives the best protection against cord damage and can lead to longevity of the belt. Do not get me wrong smooth idlers may work ok but the bend over the apex of the curve can lead to issues (possible not definitive).

Jon

Thanks Jon! Putting a small, toothed idler may be the way to go. I didn't even think about wear "over the apex of the curve". This would also allow for a shorter belt, and therefore be a win-win situation! :cheers:

I would be carefull going to small, what are the dimensions of the smooth pulley in the system now? Specifically the OD dimension?

Jon
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on March 01, 2012, 12:34:43 PM
Jon, The OD is 4.4"
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: JonAmo on March 01, 2012, 03:37:11 PM
38,

can you give me these dimensions
Center of Crank to center of blower pulley and what the offset angle is (what distance is from verticle line of crank over to the centerline of blower pulley.   Same with the Idler pulley you are using. Let me know what tooth count is of each pulley as well. The ones that are on the system (we can baseline from there.). So basically I need to know distance up and distance over.  Please try to get as accurate as possible.

How do you know what tension you are want to use on the belt?

Jon
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on March 01, 2012, 06:48:35 PM
Jon, here are the measurements, with the 66T we'll start with on the dyno, and the 48T, that I think we'll run.

Both drawings use a 53T crank pulley. 1st pic is a 66T blower pulley, second one is a 48T blower pulley

Dale sent me these drawings:

66 Pulley – Belt Length is 72.81  (idler in the middle of slot)

48 Tooth Pulley – Belt Length 70.26 - Idler in Middle of Slot:  
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: BoredAndStroked on March 01, 2012, 10:23:32 PM
Thursday Night Update: Welcome to the 'Valley of the Dolls' . . . She's a Strange One Now Aint She?

Just came in from the shop - was waiting on some final bolts, fittings and hardware to complete the whole valley area.   Took one of the lifter blocks back out and swapped out two lifters - the adjusters were a bit loose, and it worried me a bit.  Hopefully these 'Turkish' made lifters will hold up and we won't have adjuster issues -- will probably buy some 'jamb nuts' to bring to BVille!.

1) Oil Lines and Lifter Blocks: The FlatCad was one of the first V8s with hydraulic lifters - so they needed to pressurize them.  BUT - the lifter blocks are removable . . . so they needed special oil lines to deliver pressurized oil to each block.  Part of the reason I'm showing you guys this is that I'd never seen anything quite like it until Buddy lassoed me into the FlatCad project.  Strange setup, but kind of cool as well!  

I installed the oil fittings in the center of the block (they are fed from the outside - middle of the valley - separate exterior oil line).  Then I mounted the special FlatCad oil lines . . . Man am I glad Buddy saved these and gave them to me!   The alternative would have been about $80 of AN fitting junk.

2) Lifter Block Stud Girdle Setup: The stock lifter block setup just used some regular old hardware grade 7/16 bolts to hold each lifter block down (remember, they come out and are not cast into the block).  

There are two cast-iron bosses in the engine block (about 1" diameter) that stick out from the valley sides that these the two lifter block bolts go into (total of 8 bolts).  

What worried me is that with a MUCH larger cam and much faster opening ramps, combined with a lot more spring pressure, it seems to me that there can be a lot more side-load and overall stress on the lifter blocks, bolts and bosses.  With only two 7/16 bolts (sticking way up in the air) . . . just imagine if those cast-iron bosses break off the block!  Holy crap, the lifter block/lifters would probably fall into the cam, and the engine would turn into a 'Parts Blender' in a hurry.  

So, we decided to use ARP studs instead of bolts - they're much stronger and give consistent torque readings (as we're tightening on the fine threaded end).   I torqued them to 70 ft lbs - on the low end of the scale, but I don't want to stress this old block too much!

Then I got the bright (or maybe stupid - you judge!) idea of making 1/4" steel girdle plates to tie the lifter blocks together side-to-side.  To me, this makes the whole thing a lot stronger (acts like a integral unit) - and might reduce any tendency for stud flex, boss breakage, etc..  

Now - do I know this is even an issue to worry about   :? . . . nope . . . this is just the way I always think.   Sometimes it drives Buddy nuts, but heck . . . he puts up with me and my approach to engineering!    We're actually a good team - kind of a check and balance system.   If we have an issue, we talk it out, maybe drink a beer - laugh at ourselves (quite often) and ask for help!  :cheers:

After that, I got to thinking about what else is needed to complete the valley . . . as once the intake girdle, blower manifold and blower are on - we don't want to forget about something and have to tear it all down.  

Hmmmmm - valley covers  (where the hell did I put them???).   Found them in a box and then got to thinking about crankcase pressure and breathers.   Decided to bore holes in them (they were designed for this) and put 1/2" NPT threads in the holes.  This gives us some options to remove crankcase pressure (which is a good thing - especially with a dry sump . . . it needs AIR!).

Included is a picture of the valley . . .  need to buy more hardware to fasten things down.

We're making really good final progress - still a lot to do, but if no really strange issues show up, hope to get all of this done for Buddy to pick it up next week.   Wish us luck gang!

B&S
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on March 01, 2012, 10:55:28 PM
It's looking great Dale, but I still think we need some duct tape and bailing wire.... :-D
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Milwaukee Midget on March 01, 2012, 11:20:52 PM
B&S -

Considering what you're working with - a 75 year old casting - anything you do to help keep it tied together is going to be a help.  Maybe tying the lifter blocks together is overkill, but look what you're hoping to do with it.  It's that kind of attention to detail that should lead to a long service life from the engine.

I really don't think you can overbuild for durability when you're dealing with an antique. 

Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Jack Gifford on March 02, 2012, 12:17:44 AM
Why were there bosses cast in the lifter blocks where the "girdles" fasten?
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: desotoman on March 02, 2012, 01:47:36 AM
Buddy,

According to RCD's chart, with a spacing of 26.5 inches you can run a 1792 224T 8mm belt with two pulleys that total 111 tooth count. That particular belt length is 70.55 inches. So with a 53 crank pulley you could use a 58 top pulley, which would be about .9 to 1 under-driven blower.

Tom G.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on March 02, 2012, 06:52:27 AM
Tom, Thanks for the info! If our measurements are correct, we need a 1792 belt to run or 59T pulley.

Jack, in the pic below, you can see the 'bosses' that Dale was referring too. The are the original mounting points for the lifter blocks. The girdles Dale made, mount on top of the lifter blocks, using ARP studs, that are longer than the factory bolts, to factor in the girdle thickness.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: WOODY@DDLLC on March 02, 2012, 07:40:22 AM
It's looking great Dale, but I still think we need some duct tape and bailing wire.... :-D

Buddy & Dale: Save the wire on the champagne corks after the first dyno run!

duckbrand.com
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: JonAmo on March 02, 2012, 10:34:07 AM
Now that I have your drive design completed, can I get a few more pieces of information. My data and dimensions are showing a tad different then you are coming up with. Need a few more informational pieces from you.

How much power does it take to drive your blower.
What is the operating RPM range you intend to run.

Please provide the belt number you are running in the pictures you had of engine. This irrelevant to what I am doing I just want to know the part number for my own reference.

Thanks for the drive layout pictures those were very helpfull.

Lastly, please describe your tensioning procedures when you setup your belt.


Jon
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on March 02, 2012, 10:50:35 AM
How much power does it take to drive your blower. I have no idea! It's a teflon stripped, race prepped 6-71. I may be able to get you a better answer after the dyno,but then again-maybe not!

What is the operating RPM range you intend to run. Based on piston speed, I doubt we will be much over 5500 RPM. If the engine preforms well on the dyno, we MAY push that to the 6000 RPM range.

In the pic, the engine had a 53T crank pulley, 48T blower pulley, and a 1760 belt.

Lastly, please describe your tensioning procedures when you setup your belt. I'm not sure what procedure Dale is using. I usually snug the tensioner, rotate the engine a few times, then snug again. I do this until tension remains the same after turning it. When possible, I start the engine, 'blip' it a few times, then check the belt again.

So, what is the proper belt tensioning procedure?

Thanks for looking at this, and offering your expert opinion!


Oh, Woody- I use Duct tape, not Duck tape- I hear it's good for at least 50 MPH more! :-D
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: BoredAndStroked on March 02, 2012, 10:52:09 AM
Now that I have your drive design completed, can I get a few more pieces of information. My data and dimensions are showing a tad different then you are coming up with. Need a few more informational pieces from you.

How much power does it take to drive your blower.
What is the operating RPM range you intend to run.

Please provide the belt number you are running in the pictures you had of engine. This irrelevant to what I am doing I just want to know the part number for my own reference.

Thanks for the drive layout pictures those were very helpfull.

Lastly, please describe your tensioning procedures when you setup your belt.


Jon

Hey Jon - Dale here.

I'll try to get you some pictures of the actual unit and the idler/tensioner setup - but can't do it until the weekend (along with belt number).  I don't know what HP it takes to drive the blower - but I'll get you some ball-park numbers.

I believe the current belt is a Gates 1760, HTD Powergrip, 75mm width, 8mm style -- will get the number off of it.

Dale
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: GH on March 02, 2012, 11:21:30 AM
I was always told to have the belt somewhat loose when cold, because the aluminum blower case will expand when hot and the belt will become tighter when the engine warms up. This always worked for me on the big block Chevy without a crankshaft support like you are going to use.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: JoshH on March 02, 2012, 11:22:21 AM
The reason Jon is asking for HP because the more horsepower you put through the belt the more tension you need. I've used a free Gates program called DesignIQ for figuring out belt lengths and such, they have more complicated free programs for also figuring out required tension and resultant belt stretch that you might want to look into too. It sounds like you already have a good resource for information but I thought I'd let you know.

A while back I asked RCD how they do it and they said they just tighten the hell out of it… Helpful, very helpfull
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on March 02, 2012, 11:50:30 AM
Woo-hoo!!!

We're going to be on the 2012 Salt Talks tee shirt-looks like I paid our way to infamy! :evil:



Now, back to the regularly scheduled programming-Thanks Gary and Josh, for the belt tightening info!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: WOODY@DDLLC on March 02, 2012, 12:04:45 PM

Oh, Woody- I use Duct tape, not Duck tape- I hear it's good for at least 50 MPH more! :-D


Buddy, that's why you need the hot rod Duck tape with flames!  :cheers:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: JonAmo on March 02, 2012, 04:01:13 PM
The reason Jon is asking for HP because the more horsepower you put through the belt the more tension you need. I've used a free Gates program called DesignIQ for figuring out belt lengths and such, they have more complicated free programs for also figuring out required tension and resultant belt stretch that you might want to look into too. It sounds like you already have a good resource for information but I thought I'd let you know.

A while back I asked RCD how they do it and they said they just tighten the hell out of it… Helpful, very helpfull

This is where I say GH and yourself could be correct and may work but not what I would want for consistancy and optimal belt setup for longevity, heat and other issues associated with improper tension on belt. Here is theory - that your version of loose and my version of loose are not the same. You pushing for 1/4" travel is not the same as me pushing for the same distance. What you want is consistancy and a procedure that is repeatable each and every time, no matter who is doing the adjusting. And you do this with frequency... More to come on that later.

Jon

Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: JonAmo on March 02, 2012, 04:05:38 PM
How much power does it take to drive your blower. I have no idea! It's a teflon stripped, race prepped 6-71. I may be able to get you a better answer after the dyno,but then again-maybe not!

Thanks for looking at this, and offering your expert opinion!


Oh, Woody- I use Duct tape, not Duck tape- I hear it's good for at least 50 MPH more! :-D


I think the manufacture may be able to give you these numbers, or at least a generalized number.

Jon
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: jl222 on March 02, 2012, 10:18:46 PM
The reason Jon is asking for HP because the more horsepower you put through the belt the more tension you need. I've used a free Gates program called DesignIQ for figuring out belt lengths and such, they have more complicated free programs for also figuring out required tension and resultant belt stretch that you might want to look into too. It sounds like you already have a good resource for information but I thought I'd let you know.

A while back I asked RCD how they do it and they said they just tighten the hell out of it… Helpful, very helpfull

  While making over 2300 rear wheel hp on chassis dyno with the 222 car, the video showed the blower belt pulling away
from top pulley. At the time we were tightning it by pulling and pushing on ''toothed'' idler pulley to get it as tight as possible.
 We now slide jack under car, stand a long socket extension on jack,position under nut and tighten the hell out of belt.
  Actually when suspension starts to lift we tighten.

  This works for us on our centrifugal blower maybe to much leverage for you guys.
  Get the same blower belt construction type [8 mm though] as top fuel and blown alcohol, ''purple inside'' last year, maybe different now.

                 JL222
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Milwaukee Midget on March 02, 2012, 11:24:57 PM
Woo-hoo!!!

We're going to be on the 2012 Salt Talks tee shirt-looks like I paid our way to infamy! :evil:


This is getting ridiculous.  Yeah, I'm an MG kind of a guy, and my American alliances lie with Mopar and Ford, but Bill Reilly swagged me an AWESOME T-shirt with his kickazz Camaro on it, I'm following the Langlo build, and now I'll be buying ANOTHER T with a Chevy on it - albeit the most unusual Chevy on earth - I'm beginning to think that the Mayan's might be right!

 :cheers: :cheers: :cheers:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Jack Gifford on March 03, 2012, 12:05:03 AM
" ... tighten the hell out of it..."

I suspect this directive ought to be qualified by "if you make upwards of 2,200 RWHP". However dazzling the flat-Cad will perform, I assume it won't be in that range. My hemi V8 (370 c.i., alky) makes about 900 HP (crank) at 12 - 13 PSI boost (small-bore 6-71, no Teflon), and my target for belt "tension" was zero at elevated temperature (such as a pull-off run closely following a full-pull). The engine being all-aluminum (and no coolant) resulted in the belt (3", 1/2" pitch) having significant negative-tension when at ambient temperature. I had no belt problems in eleven seasons of competition (up to 9,000 RPM).

So... somewhere between these two extremes is where I figure you need to be!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Tman on March 03, 2012, 12:51:31 AM
More fuel for the fire. remember, the Surfers DID NOT use a tensioner, they put the belt on and "pried the rear of the blower down to tension it. Sometimes we think too hard about this shit.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: DND on March 03, 2012, 02:58:53 AM
Those Surfers were crafty guys as one nite at Long Beach they needed to put in a set of fresh bearings, drain oil - set car on side - pan off - install bearings - pan on - set car back on wheels - add oil and fuel and kick some more butt!!

By setting the car on its side setting on the rear wheels, they would not get their nice white T shirts oil stained by laying under that oil dripper as they always were clean & crafty guys!!

We could believe our eyes seeing that car setting that as that was a first.

Don
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: dw230 on March 03, 2012, 11:08:15 AM
Pontiac Jack and Jack Gifford are the same guy?

DW
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Tman on March 03, 2012, 11:22:44 AM
Pontiac Jack and Jack Gifford are the same guy?

DW

Yes Dan, please try and stay on the same lap :wink: :-D
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: dw230 on March 03, 2012, 11:36:03 AM
Why two different identities? What is trying to hide, Stan?

We need a conspiracy thread.

DW
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Seldom Seen Slim on March 03, 2012, 12:05:46 PM
Great idea, Dan.  But before it gets out of hand, Jack asked permission for the name change - didn't just up and do it without at least "warning" me.  HJe said something about "witless protection policy" (my typo).  You're welcome to ask him if you're interested in why he changed.

About that conspiracy topic -- I think not.  We don't need to give Mr. Propster any more invitation to try and confuse us with his stuff.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Tman on March 03, 2012, 01:32:47 PM
Why two different identities? What is trying to hide, Stan?

We need a conspiracy thread.

DW

Breitbart was asassinated. Hows that?
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: jl222 on March 03, 2012, 04:51:35 PM
More fuel for the fire. remember, the Surfers DID NOT use a tensioner, they put the belt on and "pried the rear of the blower down to tension it. Sometimes we think too hard about this Subaru.

  Thats how my twin brother and I did it in 1956 for our A blown street roadster, didn't have tensioners in those days and you could't buy toothed belt race set ups.Mosr racers used chains in those days. Bob Joenck had a machinest adapt Gillmer pulleys to our big sized S.C.O.T. blower for our olds engine.

  NO idler pully so we used a wood block between blower and manifold. Worked good.

  Don't remember having much trouble with the Gillmer belts.

                   

               JL222
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on March 05, 2012, 01:33:45 PM
Jl222- that sounds like fun..or not!

Ok, guys question here:

Should I run the exhaust out the back of the car, or exit it out in front of the doors, angled towards the rear, and let it 'flow' down the sides of the car? What is going to be most beneficial for me?
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: BoredAndStroked on March 05, 2012, 04:29:42 PM
Weekend Update:   Fast the Furious!   Sumptin for Everybody  . . .

Chris and I have been going like mad . . . trying to get everything done for Buddy to pick this beast up.   We completed two of the big remaining "custom" pieces of the project.   This damn hand design/fabrication work takes a lot of time and effort - always is slower than you think.

1) Dry Sump Pump Configuration:  The setup that Buddy bought from Barnes has two suction/evacuation stages and one pressure stage.   It also has a really funky darn water pump mounted to the front - that drives the whole mess.

2) Injector Pump:  This dry-sump setup can also be used to drive the injector pump - so it is configured for this as well.   While having the pump on the dry-sump may work for the Dyno, I believe we may have to rethink this when we see how all of this fits in the car - given the motor mount location.   Or - my guess is the motor mount of the passenger side may need to be reworked.  Anyway - we'll know more when Buddy gets this and the car in the same dang garage!

3) Creating a Mounting Bracket:   Created a bracket that picks up three bolts from the front snout support and has a 90 degree mounting bracket to bolt to the water pump mounts.   

Due to the funky water pump, it is a real PITA to make a mount and figure out how to get water OUT of the pump.  I ended up using an old Flathead Ford water neck -- rusty and all at the moment.

4) HTD 8MM Belt:  The bracket is designed to use a 800mm SBC dry sump pump belt - 3/4" wide.   I believe I have everything exactly where it needs to be . . . just need to mount the idler once I get the belt (should arrive tomorrow).

5) Fabrication Challenge:  Trying to keep things square during welding is a real necessity (due to belt alignment).   I clamped the heck out of it - as I knew it will want to 'move' when I welded it.   Also, I only welded about 1" at a time - moving around the part.  It is a pretty complex design - due to all the angles that needed to be accurate.   Even with the clamping, it moved a slight amount off of square -- took the BFH to it to "adjust it a bit".   I believe the 8mm drive belt with track correctly - if not, we'll adjust as needed.

Attached are pictures of Bracket a GoGo . . .

The next post will show the 'water manifold' stuff . . .  be up shortly.

B&S
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: BoredAndStroked on March 05, 2012, 04:32:03 PM
Weekend Update:  Lower Water Manifolds . . .  Stainless Baby!

We've been pondering for awhile as to how to plumb water into the block in a manner that provides good and consistent cooling to both cylinder banks and the rear cylinders (which tend to run hotter).   The stock FlatCad cooling flow is very strange:

a) Waterpump is on the front passenger's side.
b) Water enters the passenger bank - then travels through the middle of the block (in the valley area) over to the driver's side bank.
c) Water tends to be heated up on the passenger side before it gets to the driver's side.

So - we wanted to plumb both sides of the block - using the freeze plugs.  I've been thinking about how the heck to make some water manifolds that picked up the freeze plug outlets - just how to mount them?    Ended up deciding to make individual manifolds (one for each of the two rear freeze plugs).   I ordered some 3/8 stainless plate and some 1" tubing.

I then designed a very simple SolidWorks 3D model and sent it over to Chris.   His work was nice enough to let him use their brand new HAAS CNC mill to cut these parts.   Stainless is soft and sticky - took over an hour to machine each piece.

Chris came over Saturday afternoon and we made the pipe/nipple extensions and welded them up.   The nipples were then pressed into the thick plate pieces and welded from the back side.

On Sunday we drilled/tapped the block in four corners around each hole.
We temporarily mounted the manifolds - everything is cool as hell.   You gotta love stainless when it is done - just looks nice.

I ordered some square O-rings from McMaster today - that hopefully can be used in the bottom of the freeze-plug holes.  The idea is for the manifolds to press against the O-rings to create a very solid seal . . . hopefully with no other gasket material required.  There are limited O-ring sizes, we'll just see if what I ordered will work.

Great job by Chris  :D . . .  he cranked through it and delivered at the 11th hour!

B&S
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: WOODY@DDLLC on March 05, 2012, 05:14:30 PM
Dale and Chris were humpin' so hard I guess he forgot that I paid them a visit.  :-(

Don't worry Buddy, it was the only real break they got yesterday!  :-D

Can't wait to hear this ole gal cackle!!  :cheers: :cheers:

Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on March 05, 2012, 05:21:30 PM
Dale, it looks great, and looks like everything will work great on the dyno!

...but, it appears the whole setup may not work in the car! I wish I had a better pic, but I don't. Look at the frame in relationship to the engine mount.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: BoredAndStroked on March 05, 2012, 05:27:39 PM
Dale, it looks great, and looks like everything will work great on the dyno!

...but, it appears the whole setup may not work in the car! I wish I had a better pic, but I don't. Look at the frame in relationship to the engine mount.

Yeah, that's the problem of mounting things like external pumps when you don't have a block in a car -- and can't anticipate everything they'll interfere with.  I'm hoping we have room for the pump itself - without moving the motor mount, but who knows on the injector pump (which isn't on the pump in the picture) - it appears to me that it may be dang close to the motor mount.   Our luck - we'll have some dang 'surgery' to perform.   :cry:

As I told Chris yesterday -- "sure hate to make this dang nice and complex dry-sump mount and idler . . . thinking the whole time that it may be 'throw away' in the end"!  :-(
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on March 05, 2012, 06:03:36 PM
Haha! I think we just have to own up to the fact, that we forgot to take measurements when we had it in there!

At work, we call these oversights 'job security'. The boss calls them our 'last warning'! Lol!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: BoredAndStroked on March 06, 2012, 12:02:00 AM
Monday Night Update:   We Struck Oil My Friends!

Just got in from the shop - a bit knackered, but it was a good night.   

1) Distributor Plug: Chris came over and he turned an aluminum plug to mount where the stock distributor was.  I noticed that there was a pressurized oil feed hole DOWN inside the distributor bore in the block - would have been a big oil pressure leak if we didn't make a long very close fitting plug to go down the shaft bore and cover the pressure hole.   Sorry - didn't take a picture!

Chris also hand-made gaskets for the valley covers and mounted them.

2) Oil Pan Kickout Bar: I was working on the rest of the oil system.   When I designed the lower crankshaft girdle, I didn't want to counter sink the front main studs/nuts into the front girdle bar - seemed stupid to drastically weaken the whole girdle by two big counter-bores (down into the meat of it).  So - this left a problem . . . where the heck is the front of the pan going to mount and seal?   The dang studs/nuts are right in the way.

3) I like Dog Legs - Have a Set of My Own!   Solution - I kicked the front of the oil-pan out (dog-legged it) - and instead of making the girdle shape a lot more complex (with a corresponding kick-out), I decided to make a 3/4" thick aluminum KickOut bar that bolts to the front of the girdle and then has bolts for the oil-pan kickout.   Had to make that bar this evening out of 6061, drill tap a bunch of crap, etc..   There went about 2 hours . . .  yikes!

Mounted it to the girdle and then started working on the pan (which has never been on the engine).  Had to take the die grinder and relieve the center baffle to clear the center studs.   I thought we may have to modify the front of the pan to clear the front studs (as the pan builder angled the front - we thought it would hit the studs). 

4) Good Karma - Guess I'll Vote Tomorrow:   Anyway, after the center baffle mods, the darn thing fit in the front!   About frigging time we had some good luck!   I had Jeff Fowler ready to do some aluminum TIG welding on the pan tomorrow (my welder can't do aluminum).   Anyway, pan fits perfectly . . . all is good in the land of oil.

I've included a close-up of the front of the pan - notice how it kicks out and bolts to the kickout bar.

Drill Baby Drill - It is Good for FlatCad!    I guess that maybe because Buddy is in the 'Oil Business', the Gods smiled on us today and his good Karma came through. 

Time for sleep - these next 3 days are going to be a real slog!

B&S

Note:   More pictures on the following post . . . .
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: BoredAndStroked on March 06, 2012, 12:03:40 AM
The Rest of the Pictures . . .  Now Don't Fall Asleep . . . I Know, Kind of Boring Stuff . . .

Have a great night - time for sleep . . .

B&S



Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: BoredAndStroked on March 06, 2012, 12:09:39 AM
Haha! I think we just have to own up to the fact, that we forgot to take measurements when we had it in there!

At work, we call these oversights 'job security'. The boss calls them our 'last warning'! Lol!


I hear yah - this is just how building race cars goes - always another hurdle to overcome!   We may have to think about mounting the dry sump and injector pumps off of the timing cover (it is designed for this).  Might be able to leave the goofy water pump running off the 8mm belt drive and bracket I made.  I'm not even sure it will pump enough volume - we'll find out.   Using the timing cover is very typical stuff - many guys run them this way.

We'll know when you get the beast back in your town . . .  try and adjust is the name of the game!

Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: maguromic on March 06, 2012, 12:19:27 AM
There is nothing boring about this build or what you guys are posting!  Tony
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: BoredAndStroked on March 06, 2012, 12:22:03 AM
There is nothing boring about this build or what you guys are posting!  Tony

I thank you!  Sometimes I do wonder if I'm just babbling on about useless stuff . . . appreciate the encouragement.   We're learning as we're going, so we'll take ALL the input/help we can get.

B&S
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on March 06, 2012, 06:30:29 AM
Haha! I think we just have to own up to the fact, that we forgot to take measurements when we had it in there!

At work, we call these oversights 'job security'. The boss calls them our 'last warning'! Lol!


I hear yah - this is just how building race cars goes - always another hurdle to overcome!   We may have to think about mounting the dry sump and injector pumps off of the timing cover (it is designed for this).  Might be able to leave the goofy water pump running off the 8mm belt drive and bracket I made.  I'm not even sure it will pump enough volume - we'll find out.   Using the timing cover is very typical stuff - many guys run them this way.

We'll know when you get the beast back in your town . . .  try and adjust is the name of the game!



Dale, I think you were probably working on the oil pan, when I emailed you the 'contingency plan'. Looks like it's time to go that route, with the fuel and oil pump! :wink:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: WOODY@DDLLC on March 06, 2012, 07:09:15 AM



We'll know when you get the beast back in your town . . .  try and adjust is the name of the game!


[/quote]

Like I told you Sunday, Dale: You just modify the modified modification [after the last revision]. :cheers:

Adapt or perish!  :-o
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: BoredAndStroked on March 06, 2012, 11:55:42 AM

Like I told you Sunday, Dale: You just modify the modified modification [after the last revision]. :cheers:

Adapt or perish!  :-o

Every race car has a bit of 'Frankenstein' to it -- pieces, parts and sutures all over the place . . . all hopefully willing to work together for the purpose at hand.

Good seeing you on Sunday - much appreciate the work!

B&S
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on March 07, 2012, 08:39:37 AM
Garry did some more flow work with our head. We had 166 CFM with a .050 head gasket. Garry then used a .10 head gasket, and got 172 CFM flow. After a little work on the transfer area, and the .10 head gasket, flow went to 188 CFM. Garry just surpassed 200 CFM on his engine.
 
So, it appears with a little more work to the transfer area, we can get the flow up, and use our .072 gaskets! :-D
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Milwaukee Midget on March 07, 2012, 07:29:57 PM
Just a thought - if I could get by with it, I'd exit the exhaust out the back.  Not for any speed advantage - but you can hear the rest of your engine better.  If something isn't right with the valve train, the belts, the ignition timing, whatever, the further isolated your hearing is from what I'm sure is going to be a screaming exhaust sound might be the difference between being able to back off and save an engine with an issue, and turning a lot of very nice work into scrap.

It's something I've been looking into.  My left ear took a beating at Maxton.  I could hear the exhaust, but I couldn't hear the valve train or the intake.  It wasn't until I pulled the valve cover when I got home that I realized I had run my clearances loose on the rockers.  Normally, I think I would have been able to hear that.

My 2 cents - worth maybe half.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: maguromic on March 07, 2012, 10:52:33 PM
I would use your exhaust to enhance what ever aero package you plan on running.  Based on how your aero is, running out the back may not be the best. I think with all the effort you and your team have put into the car and the engine package, I would build a model of the car and do some CFD runs to see the sweet spot for the exhaust.  Tony
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: DND on March 07, 2012, 11:16:40 PM
Good point Tony, look at what the F1 troops are doing as they have been putting those pipes everywhere to get that little aero edge.

Don
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: desotoman on March 09, 2012, 02:01:04 PM
Garry did some more flow work with our head. We had 166 CFM with a .050 head gasket. Garry then used a .10 head gasket, and got 172 CFM flow. After a little work on the transfer area, and the .10 head gasket, flow went to 188 CFM. Garry just surpassed 200 CFM on his engine.
 
So, it appears with a little more work to the transfer area, we can get the flow up, and use our .072 gaskets! :-D

Buddy,

I am glad the added head gasket thickness help with the flow in the transfer area.

Tom G.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: BoredAndStroked on March 10, 2012, 03:57:36 PM
The Final Hours - Last of the Long Block:

Man, I must be an eternal optimist - it is always a much bigger job and takes so much more time than I think.  Guess that is why I talk myself into these projects in general!

The following is from Wednesday evening - night before Buddy arrived.   I needed to complete the assembly of the heads . . . which all of you flathead guys knows is a real PITA.  This is doubly true on a custom engine, where you built 'clam shell' heads, have never had studs in it before, etc..   You really don't know what you're in for. :eek:

1) Assembly Tip Preaching to the Choir:  When you have a custom engine (girdle, special mains, special crank, etc.) - it is a good idea to mark the girdle and block with your torque specs.  If this engine has a life beyond me messing with it (one can only hope!), wanted the "next guy" to know what to do.   

I stamped the girdle and the block with the torque settings for the mains, rods and the pan rails.   We use about a .005 crush on the main caps (from the steel girdle).  The stock specs call for about 150 lbs on the mains, but both Jeff and I didn't want to go that far . . . worried about cracking the block or pulling the webs out of it - so 130 it is.

2) Heads - Blue Gooooo:  The FlatCad has custom 2-piece clam shell heads.  Not only do we have to worry about sealing the deck surface, we have to worry about sealing the surfaces between the head pieces.  As we have solid copper head gaskets (from FlatOut) - with a rubberized coating on them and stainless O-rings in the heads (mandatory with solid copper gaskets), we wanted some extra sealing insurance.  (Who knows if even this will seal!).

a) Rubber O-Rings:  When Chris designed the heads, he put in some square grooves around the perimeter and the plug holes - then I put in the same bulk O-ring material that is frequently used on high-pressure blower manifolds.  Hopefully these O-rings, plus the hylomar will do the trick.

b) Hylomar:  This is a special non-setting polyurethane concoction that is used in the aircraft industry and many others for specialized sealing/gasket situations.  It is expensive and messy - costs about $55 for a brush on can (about 250 ml) and is available in a spray on can as well.   We're using both:

- Spray on was used to coat both sides of the head gaskets.   You spray one fairly thin coat and give it a few minutes to flash out the solvents (it never dries though).

- Brush on was used between the head pieces and also on the bottom of the blower manifold.

3) Head Studs:  @#%@#$$@#$!   These are one of those things that you know you need for blown applications, but you dread using them all the same.   I had temporary insanity - coated the coarse (block-side) threads with a special teflon thread sealer, put anti-seize on all the surface, put ALL of them in for one side in the block . . . and then with stupidity and optimism, tried to put the heads on! :cool:  You guessed it - not a chance in the world of putting a head on this way.  (I know better, but I guess I'm too stupid to remember what ALWAYS happens with flatheads - you just can't do it this way!).

So, then I took about 3/4 of the studs out - put the head gasket back on, put the head pieces on and THEN put the rest of the studs in . . . one by one.   I used anti-seize on all stud surfaces other than the coarse threads - don't forget to do this or you may never get the heads back off!

Also, we use hardened ARP 'hat washers' - that shoulder the stud and go down into the head.  These really help align the stud and ensure a good torque reading.  Also, they stop deformation/galling of the head itself.  The head design had machined pockets to accept this style of washer.

Okay - this method works . . .  here is one head on.   Notice the thin line of blue Hylomar coming out - this is actually a good sign that we have good clamping forces and hopefully a good seal.   This crap never hardens and about the only solvent that will cut it is MEK  (not nice stuff - be careful! :eek:).

Torque:   Stock iron heads are 70 lbs -- I didn't want to go that high.  I'd like to talk to some of the LSR boys and see how much they are using. (I used to go to 55 on my blown flathead Fords - but with limited boost).

I was conservative for now --> 50 lbs on the stock location studs and 35 on the 7 new ones that we added.   I did NOT want to torque the new studs too much as the deck is thin (no stud bosses), and it would be easy to crack the deck and ruin the block.  Again - nobody has experience with FlatCads, this is all semi-educated guess work at best.  :rolleyes:

My guess is that we'll increase the torque once the engine is warmed on the dyno - as head gasket issues and water sealing are typically some of the biggest issues to overcome on LSR flatheads.

:confused: Any experience on LSR torque on blown flatheads??? - please send me your thoughts!   Address:   dhays@tdci.com


Next:  The following post will show more pictures . . .
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: BoredAndStroked on March 10, 2012, 03:58:43 PM
More Pictures . . .

Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: BoredAndStroked on March 10, 2012, 04:02:33 PM
The Last Engine Thrash - and it was a Doosey!

Buddy arrived bright and early on Thursday - so ALL we needed to do was the final engine plumbing  (dry sump, oil, fuel and water), then a few last minute things . . .  and we'd be magically ready to pack it up.   Again - frigging optimism was our enemy . . . this was a LOT more work than even two people could do in a day.   But heck - that didn't stop us one dang bit from trying!

Late Thursday - Into Friday . . .  we quit at about 11:30 Thursday evening and started up again at 7:00 Friday morning.   It took all of Friday to complete the engine, pack up the truck with a TON of FlatCad stuff and load the engine.

Frigging Sickness :(:  I rarely get sick, but sure as hell . . . came down with a bad chest cold and a fever on Thursday - got really bad on Friday afternoon.  (My wife missed 3 days of work this week - and she is TOUGH!)

Shaking Like a Dog Crapping Razor Blades . . .  I was working the lathe with my darn teeth chattering the whole time -- fever, chills and coughing like hell.  I'm thinking to myself -- "am I nuts, this is just an engine and I'm killing myself over it???"  Can't tell you how many times I wanted to throw in the towel and tell Buddy "I just can't do this anymore today  . . . ".   Stuck it out - just needed to get it done.  :)   Okay - enough pathetic whining . . . wah, wah, wah . . .


Onto the Final Hours . . .

1) Plumbing Work: First of all, I had my opinion on how best to plumb the engine -- but knew that until Buddy arrived, it didn't make sense to do so.

It takes $500 - 700 just to plumb a dry sump . . . then add to that a more complex oiling system,  fuel, water, etc - you can see where this is headed! (too much time and money).  Thank gosh we'd bought most of the AN fittings/hose last summer - but we needed to flush out the rest.   Buddy's wallet screamed a bit, but that is just the way it goes with this crap.

2) Injector Pump Setup: We decided to move the injector pump from the original location on the back of the dry-sump pump  (no room for it) to the timing cover (standard stuff).   This required a pump extension to get it past the blower belt.  Luckily Fowler had these on the shelf and he quickly put together a 2.5" long version and I went and picked it up.   We talked to John Beck about the other fuel system lines and all he really needed was the pump mounted, the shut-off valve mounted and the single main feed line to the Enderle hat.   That saved us some time (at least for now).

3) Dry Sump Mandrel and Drive:  We use a custom drive mandrel (Fowler made) that mounts inside the crankshaft blower drive hub/support snout.  It uses a standard 1" drive hub to mount an HTD sprocket to drive the pump.  The mandrel needed to be shortened 1/2", and a new hub keyway cut . . . there goes another couple of hours.

4) Dry Sump Belt Tensioner:   I bought a little timing belt tensioner from Eslinger - just to have something to work with.   Had to figure out how to mount this to my dry sump mount and put a bit on tension on the belt.  We completed this about 10:30 last night.

5) Bitter Sweat . . . The End of the FlatCad Era in My Shop:  One side of me was happy to have completed the engine and hand it back to Buddy, the other side was a bit sad to see it go.   We've become close friends over the last 1.5 years (Buddy, me and the engine!), . . . so it was with some sadness that I saw it leave on the back of Buddy's truck.   On the other hand - I can now see my shop floor once again . . .  :D

Attached are the parting shots . . . packed up and Buddy's butt (he won't take pictures - even if you ask, he always hides!).  LOL!

Saturday:   I needed sleep very badly and hopefully get a bit better.   Just don't have time to be sick or for it to get worse.  I've taken most of the day off today, but there is much to do tomorrow.

Buddy is on his way back to Colorado -- he has to be beat tired as well and I only hope he doesn't get what was killing me . . . cause it will kick his rear in a bad way!


The Reality Gauge - Always Tough When it Stares You in the Face!:

We need to decide if we can make the dyno next week - we've really pushed it and need to stand back and make a realistic decision on what we need to do and when.  

Buddy is on a really tight schedule and I'm not sure he/we can do all that he plans in the very short time he has scheduled.  Isn't it always like that with this stuff?  

My Reality:  Some of this is a result of my over optimism and unrealistic aspirations.   I've over-committed and taken on too much at times - guess it is my nature. :rolleyes:    It is hard to stand back and be thoughtful and realistic when you're in the thick of the hunt.   We're all works in progress my friends - just need to keep learning along the way!

I'll let Buddy update you all on the infamous  'Next Steps' and associated schedule!

Parting Words:

I for one . . .  can't wait to see this beast on the dyno, then on the salt . . . these will be larger than life experiences -- and aren't they grand!

Be back soon my fellow LSR friends . . .  thanks for listening!

B&S
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Captthundarr on March 10, 2012, 04:17:08 PM
Dodge B&S you gotta love the self abuse. Love the build. :cheers:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Freud on March 10, 2012, 04:19:39 PM
B & S...........M A R V E L O U S  report.

You are to be commended on your posts.

FREUD
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: BoredAndStroked on March 10, 2012, 05:10:40 PM
B & S...........M A R V E L O U S  report.

You are to be commended on your posts.

FREUD

Thanks a bunch . . . helps keep me going to hear that others are willing to read by babble!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Dr Goggles on March 10, 2012, 05:47:30 PM
It's such a great story, that flu ain't the only bug you're testing positive for bro. :cheers: :cheers:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Buickguy3 on March 10, 2012, 06:51:16 PM
  Great story, get well, and don't push beyond the limits [whatever those are].
   Doug :cheers: :cheers: :cheers:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: desotoman on March 10, 2012, 09:56:25 PM
Buddy and Dale,

Best of luck on the dyno. Anyone willing to take a guess at the HP this beast will make. My guess is 550-600 HP depending on boost.

Tom G.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: BoredAndStroked on March 10, 2012, 10:25:31 PM
Buddy and Dale,

Best of luck on the dyno. Anyone willing to take a guess at the HP this beast will make. My guess is 550-600 HP depending on boost.

Tom G.

If we somehow manage to hit 500, we'll all be happy pigs in crap . . . we need to be North of 450 to have any chance to push the FlatCad fast enough.   Putting an engine like this on the dyno is kind of like a 'Scary Christmas' -- you can't wait for the presents to come, but you're about half scared of what's inside.  :-D
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: bucketlist on March 11, 2012, 12:31:31 AM


 . . . helps keep me going to hear that others are willing to read by babble!

I've been quietly lurking, awestruck, if that helps any. That engine is a marvelous monument to the insanity that attracted me to LSR.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: BoredAndStroked on March 11, 2012, 10:47:26 AM
Ahhhhhhhhhhhhh - a bright and sunny Sunday morning . . . feeling pretty solid once again.    Time to head out to the shop and cleanup a bit and wait to hear for 'What's Next' from Buddy.   

I'm sure he is very happy to be home with his family and hopefully he gets some much needed rest!   Also, I hope I didn't give him whatever was ailing me . . .  :|
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Rex Schimmer on March 11, 2012, 02:14:25 PM
What a thrash!!! Now for the test, putting this thing on the dyno is really going to be an experience, my bet is that it will not be a one day affair. Dyno testing with this motor has to be done in very planned steps, I hope you have a plan. To much invested to just fire it up and "pull the handle"! Having gone through many start ups, large machine tools, hydraulic systems, race cars and engines I can tell you that there will be some surprises and challenges but well designed and fabricated projects, like the Flat Cad, will be successful in the end. As one of my favorite sayings goes:
"When you learn by experience, the test comes first and the lesson comes next" here's hoping that your "experiences" are all good and your testing is successful. Can't wait to hear the results.

Rex
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on March 11, 2012, 03:14:43 PM
You're right, Rex-I had three days scheduled with John, one being just for setup.

The engine looks great-definitely looks the part, and Dale did a nice job of waxing eloquent, didn't he?

Often times, the real story is the one that remains untold, and that is definitely the case here! My one and only phone call today was to John Beck, informing him that the engine is not ready, and therefore we won't be bringing it out this week. :cry: :cry:

So, on to plan 'B', or are we on plan 'y' yet?! With the transmission change, and the FlatCad engine going into the car, there is a ton of work to do to be ready for El Mirage in May. New clutch pedal and slave setup, tranny mount, driveline, tranny tunnel, swapping fuel and water to front/back, fuel shutoff, throttle, new mounting spot for water pump and oil pump -list the goes on and on.

In the morning, I'm going to start getting the engine in the car, to get it running. The transmission adapter plate needs modified, to mount the bellhousing, so that is first on the list.

It's late in the game, so it's going to be 'function over form'. Hammers and grinders, cutting torch and welder, cut off saw and drill-no frills, just parts to go racin'!




Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: DND on March 11, 2012, 06:27:58 PM
Hi 38'

Just to add to what Rex was saying, the time just fly's when you are at the Dyno so any parts you wan't to test make sure they fit right and you have triple checked everything you need for the install !!

If you have run before then you know all this, since i'am new to the forum i'am just learning who is doing what and trying to add a little from having done all this dyno suff for years in So cal.

If the Dyno is not too far away you could go and take notes & pics on how they hook up all the stuff, then make your hook up stuff at your shop and it goes together well when you get there.

Being that you are on the clock and paying for that time you wan't to get your engine running as soon as you can, and spend your hours for the testing & tuning time but for some reason the hands on the clock just fly at the dyno and you never get enought done before your time is up.

Hope this little bit helps.

Don
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: BoredAndStroked on March 11, 2012, 09:51:01 PM
What a thrash!!! Now for the test, putting this thing on the dyno is really going to be an experience, my bet is that it will not be a one day affair. Dyno testing with this motor has to be done in very planned steps, I hope you have a plan. To much invested to just fire it up and "pull the handle"! Having gone through many start ups, large machine tools, hydraulic systems, race cars and engines I can tell you that there will be some surprises and challenges but well designed and fabricated projects, like the Flat Cad, will be successful in the end. As one of my favorite sayings goes:
"When you learn by experience, the test comes first and the lesson comes next" here's hoping that your "experiences" are all good and your testing is successful. Can't wait to hear the results.

Rex

Thanks for the note Rex . . . it is obvious this isn't your first dyno rodeo!   I'm like you - I think having a semi-controlled test environment (dyno) . . . along with a plan is the best way to approach highly custom efforts such as this.  There will be issues - hopefully ones that we can overcome without 'new parts' - and then there is the ability to baseline the engine, start figuring out what fuel it needs, what advance it needs and how it responds to changes.  It needs to have a plan - one based on a guy like John Beck who really knows what he is doing  (as we're newbies!).

With the above said, Buddy has tried to get this engine on the dyno for a few months -- but I could not complete all the work to meet those dates . . . just couldn't be done with the shear amount of work and issues that raise their ugly heads.   This stuff takes 3 times as long as anybody could ever ponder.

Much appreciate the support - hopefully we'll see you on the salt!

B&S

Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on March 14, 2012, 06:19:10 PM
Well, I returned home from work,and from Dale's, where our 2 day thrash wasn't enough to get the engine far enough along to take to the dyno.

My Brother-in-law Rodger, and I ,spent the day getting the engine and tranny assembled, and 'stuffed' into the car-believe me, stuffed is appropriate!

Now, I have a whole new set of issues to deal with, but nothing that time, and some fab work won't fix.

The water/oil pump pit, but only without the drive pulley! I can either notch the frame, or get a smaller drive pulley. In the morning, I'll call Barnes, and see if we can come up with a setup that will keep the pumps turning at the needed speeds, and fit in the car.

The oil manifold, that feeds the mains, lifters, and dizzy, will have to be relocated and plumbed. It was mounted right where the steering box sits, and there is only 5/8 clearance between the steering box and the block.

The crank was moved up in the block, .027", but we forgot to mention that detail to Pat at Wilcap. The adapter is going to have to be modified, in order to get proper alignment. I talked to Pops29, and the plan is to run the engine/tranny setup by his shop, after we finish on the dyno-THANKS DON!

The biggest issue is the tranny swap I decided was such a great idea-only, it wasn't! The crashbox has a Vertigate shifter on it, and in order to make it fit as is, I'd have to cut about 6" out of the right corner of the seat. That would work, if I wanted to lose a 100 lbs! So, a plate is going to have to be fabbed up, to relocate the shifter, and new shifter rods made.

The pics are crappy, as all I had with me was my cell phone.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: BoredAndStroked on March 14, 2012, 09:04:39 PM
Dang, that is 100% bad A$$ looking!  Given everything that was done by edumacated guesswork, we seem to have very little rework - that is fantastic in my book.  I thought that sure as hell the dry sump drive was a dead soldier.  (glad I made it purdy!)
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: SPARKY on March 14, 2012, 09:09:59 PM
 :cheers: :cheers: :cheers:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on March 14, 2012, 09:13:07 PM
 (glad I made it purdy!)

Don't worry Dale- I believe in equality, so I've been busy with a grinder, and BIG hammer! :-D
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Milwaukee Midget on March 14, 2012, 10:57:31 PM
Terrifyingly beautiful.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: BoredAndStroked on March 15, 2012, 07:08:10 AM
 (glad I made it purdy!)

Don't worry Dale- I believe in equality, so I've been busy with a grinder, and BIG hammer! :-D

I have a picture of you and your BFH in my mind, and it ain't purdy :-o.


Keep slogging Buddy and send us some good quality pictures when you can
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: JonAmo on March 15, 2012, 07:55:38 AM
IF they want good quality images they will just have to come to Bonneville and see it first hand. Until then they are stuck with the teasers.

Jon
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: WOODY@DDLLC on March 15, 2012, 03:12:24 PM
I have a picture of you and your BFH in my mind, and it ain't purdy.  :-o

Buddy don't forget to calibrate your BFH. You can use either thumb!  :-D
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Skip Pipes on March 15, 2012, 07:50:25 PM
I like the saying that “if it looks nice right, it going to be fast.”

Buddy, that engine is strikingly beautiful!

Skip Pipes
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Richard 2 on March 15, 2012, 10:02:52 PM
NICE, That's the biggest flat Head I ever did see. (In a car that is). Well done Men, Hope she runs like a BAT OUT OF HELL!  :cheers: :cheers:
Richard
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on March 15, 2012, 10:08:23 PM
Thanks everyone!

Woody, either thumb? Dammit- I thought it said BOTH thumbs, and I did! :-D

What a wasted day, today was!

Rodger and I looked over the crashbox, measured several times, and commenced to modifying the tranny cross member. Finished it, so we slipped it in the car.

What the hell? The tranny tail shaft is 2" high, and won't set down on the crossmember! Long story short, this tranny doesn't fit the car! The mount on the tranny sits the tail shaftup about 1-1/2 inches higher than the Muncie. That, added to the fact that the shifter is going to take a LOT of work, to fit in the car, was enough for me.

So, I decided that another Muncie is in the future. That meant, of course, that we had to modify' the crossmember, to the way it was when we started. If anyone has a good Rock Crusher, and wants a nice crashbox, please let me know!

We loaded the car on the trailer, and I took it to Pinkees, where they are going to finish the clutch setup, and the throttle cable, while I'm at work.

Here's a couple of better pics, of the engine in the car, and the car on the trailer, headed to Pinkees.

Next up-a new radiator in a box water system.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Richard 2 on March 15, 2012, 10:30:57 PM
38flattie, Looking at your pictures. It looks like there is alot of aluminum between the blower and the engine. Will you have to allow for vertical growth on your blower belt tension?
Richard
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Stainless1 on March 16, 2012, 09:48:48 AM
Should work like an auto tensioner....
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on March 16, 2012, 01:45:49 PM
38flattie, Looking at your pictures. It looks like there is alot of aluminum between the blower and the engine. Will you have to allow for vertical growth on your blower belt tension?
Richard

Richard, between the engine and blower, is an alumium intake, and on top of that, an aluminum 'chiller'. Since the chiller has ice water circulating through it, cooling the intake charge, I really don't see much 'growth' happening there-at least that's my theory at this point!

Should work like an auto tensioner....

 :-D :-D :cheers:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on March 17, 2012, 09:40:12 PM
Ok, here's the last progress report from me, until next days off.

I moved the water tank from the front of the car, to the back. I bought a Ron Davis radiator from Rex Schimmer, and decided to build a radiator in a box. Yes, I know it's not custom aluminum, and I know it's bigger than I need(28 gallons), but it serves 3 functions, and it's time to get the car finished!

First, the obvious-a radiator in a box. Secondly, I have an electric pump, pumping water to the mechanical pump, through 1" lines, so I'll plumb a bypass around the mechanical pump, so that it can act as a heat exchanger, if the engine gets hot. Lastly, I need the weight, and it sure helps in that department!

It has a 1/2" wide, and 1/2 deep lip around the perimeter, filled with silicone, to seal the removable lid. I think all we will need is water, but the lid comes off to remove the radiator, or add ice if we need.

Next up, dyno headers by Dale!  :-D
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Milwaukee Midget on March 18, 2012, 01:09:34 AM
I don't think Rex had that radiator up for 5 minutes and you scooped it. 

Sometimes the expedient is the right answer.

Make it so, and make it go. 
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Rex Schimmer on March 18, 2012, 04:32:24 PM
Just a note: I do have one more like the one Buddy has and two 15 x 15 x3-1/2 double pass units still in my "stock"

$150 each. nice pieces!

Rex
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on March 23, 2012, 11:59:16 AM
Well, the end is finally in sight! We've had plenty of excuses on why we've been delayed, but no more!

I'm at work, and Pinkees is finishing the pedal/clutch setup, throttle setup, and fuel shutoff. Dale is doing the dyno headers, looking for the 'lost' rear end yoke, and designing blower restraint hold downs.

When I get home,I'm pulling the engine and heading to Chico, to see John Beck. After the dyno. I'm headed to Don's shop, to adjust the adapter/bellhousing, for a proper tranny shaft alignment, then home to reinstall the engine/tranny.

I need to get the driveshaft length corrected, for this new combo, and the water and oil all plumbed in.

The following days off, I'll get all the electrical wired, do the SCTA inspection, so that I'm ready for El Mirage, load the car, and head west!

No excuses this time!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Milwaukee Midget on March 23, 2012, 12:21:12 PM

The following days off, I'll get all the electrical wired, do the SCTA inspection, so that I'm ready for El Mirage, load the car, and head west!

No excuses this time!


"When the going gets tough, the tough get going -
Go West, young man, Go Go!"


E*I*E*I*O* - "Go West", from the album, "Land of Opportunity".

 :cheers:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Elmo Rodge on March 25, 2012, 07:25:31 AM
Buddy, in your trip to Beck's if you come out I-70 don't forget to stop at my place. Wayno
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on March 27, 2012, 05:25:21 PM
Wayno, I'll be coming through on April 10th. I won't have much time, but I'm honored by the invite, and could stop for an hour or two.

I would expect that it will be around 10 AM or so, when I get there. Wanna PM me a number and address?
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Elmo Rodge on March 27, 2012, 06:09:38 PM
PM sent. You'll like it here.  :-D Wayno
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: jimmy six on March 27, 2012, 06:27:13 PM
If your going to use a Muncie consider a Supercase and tail housing along with the cast iron mid plate. We installed one in our dirt car. They also have an overdrive for them, don't know the strength on that.

The main difference between a M20 and 21 is the shaft on the cluster. The M22 is best but is harder to shift and can take 700 HP on the street. Best price I found was $1775 all new and no core charge. Thats a 1000 under a Tex or Jerico. That's what the box stores get for a T-10 and they are not as strong. I should have started with one instead of rebuilding my old one 3 times with broken aluminum....Good luck
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on March 28, 2012, 11:00:26 AM
Wayno-I got your PM. Sounds like a good time!
 
JD, where did you find the Supercase for $1775? Is that with the 26T input spline?
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: maguromic on March 28, 2012, 11:04:54 AM
Buddy, This is where my friend bought his http://www.tbtrans.com/muncie_4_speed.htm Tony
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Richard 2 on March 29, 2012, 12:02:23 AM
Buddy, The 101A G-Force (Tex) clutchless Trans works pretty nice G-force put mine together for about $2,300.00 in 2009 (used Nascar stuff) and can get about any gear ratio you want. They also come with Chevy & Ford bolt patterns. Plus they have oil pumps you can run in them for an oil cooling system.
Richard 2   
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: jimmy six on March 29, 2012, 10:01:22 PM
Tony's got it...Richard. I run a Tex T-101 in my roadster with a .96 OD so I'm very familial with them...Mine is all NASCAR used stuff but put together by Tex when they were Tex....Our Muncie is a M20 which is plenty for us especially since it now has a complete supercase.....................JD
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: BoredAndStroked on April 01, 2012, 09:43:09 PM
Sunday Night Update - Dyno Headers are Done!

Just came in from the shop - was a long day of cutting, grinding, welding . . . boy am I glad I'm done!

I couldn't help myself, wanted to make them flow well and look nice - kind of a "Rams Horn" design in the end. I don't know why I needed to make dyno headers look nice - but I guess the old work ethic of "a job worth doing, is a job worth doing well" just runs through my blood. Plus - we want the girl to look good on her maiden voyage . . . we can't have it fugly now can we?

I just tacked on header collectors to the bottom of the custom collectors that Buddy had made (so they can be removed when he has real headers made for the car). I can't remember who made our custom collectors, but I will say that he REALLY knows how to make nice stuff! Want to thank him for the nice work - will have to get his eMail from Buddy.

The headers are 2.5" from the shared center port and 2" on the outside exhausts. The collector is custom to handle these different size tubes.

I also welded in O2 sensor bungs into the collector extensions - we'll need them on the dyno.

Here yah go . . am shipping them directly to Beck's tomorrow . . .

Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Freud on April 02, 2012, 03:46:39 PM
You have an excellent attitude about quality.

FREUD
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on April 07, 2012, 10:16:17 PM
Well, the engine is loaded in the truck! Tomorrow morning, I'll spend Easter with the kids and grandkids, then in the afternoon, I'll finish the temporary chiller tank, anfd finish loading the truck.

I'll leave at 2:30 A.M. Monday morning, and stop and see Wayno. Then it's on to Chico, where I'll pick up Dale at the airport at 11:30 P.M.

Tuesday we'll be setting the engine up on the dyno, doing electrical and the plumbing that can't be done until the engine is all together.

Wednesday we should hear and see our efforts 'come alive for the first time!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Jack Gifford on April 07, 2012, 10:54:13 PM
Will it be huffed?
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: BoredAndStroked on April 07, 2012, 11:12:54 PM
Yep - it will have the blower, injector, the whole setup.   It is too hard to lift the motor out with the blower on -- as we chain to the intake girdle plate.   Much easier to travel with just the blower manifold on.

Wish us luck gang!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: BoredAndStroked on April 07, 2012, 11:14:25 PM
You have an excellent attitude about quality.

FREUD

Thanks - my guess is that you and I are about the same in that regard!

By the way FREUD, I remember meeting you last year on the salt (if I'm correct, you came by and chatted for awhile).  Hopefully we'll see you next summer!

Have a Happy Easter!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Peter Jack on April 07, 2012, 11:34:50 PM
If it's worth doing, it's worth doing right!
Have fun guys. Here's wishing you ALL the success you richly deserve.  :cheers: :cheers: :cheers: What a great project.

Pete
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Freud on April 07, 2012, 11:53:57 PM
B and S...........yep I did stop by. It was my pleasure.

I just can't forget growing up in my Dad's machine shop and the engine from our Caddie in there.

Little hydraulic lifters, and angle cut rod caps so the rod could come out the top of the bore.

A lot of pride built into that project.

I'll see you again.

FREUD
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Rex Schimmer on April 08, 2012, 12:07:57 AM
Buddy,
Is your a$$ getting tight? The time for all truth to be told, you cannot lie on the dyno!! Good luck and have fun!!!

Rex
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: DND on April 08, 2012, 12:22:29 AM
Hi Rex

In the past some dyno shops would dial in a frienly correction factor number, for years i ran my stuff at Traco and they were right on the money for honest HP numbers.

Don
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Elmo Rodge on April 08, 2012, 07:41:10 AM
I'll be looking for you Monday.  :-) You'll get the "nickle tour" and back on the road. If you get a chance, give me a heads up call from Green River so I know how you're progressing. There's no phone service after that.  :wink: I'll be here anyway. Wayno
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: SPARKY on April 08, 2012, 11:06:44 AM
 :cheers: here's to a Dyno session with a Happy Ending  :evil:  BIG NUMBERS
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: BoredAndStroked on April 08, 2012, 11:12:48 AM

Hey Sparky - thanks for the support and encouragement.   

This is like a 'Scary Christmas' . . . we know we have something under the tree, we can't wait to open it, but we're also about 1/2 fearful of what might be in the box!  :-o

Hope to see you on the salt this summer and thanks for all the help, support and encouragement - us crazy flathead guys need all we can get!

Have a Happy Easter!

B&S
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Geo on April 08, 2012, 01:05:03 PM
Buddy,

I am always looking forward to opening new posts on this build.  Good luck on the dyno.  I have my guess numbers posted on the wall here and awaiting confirmation.

Geo
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Jon on April 09, 2012, 05:38:20 AM
Good luck guys

jon
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Elmo Rodge on April 09, 2012, 08:29:37 AM
Buddy stopped by last night on his way to the dyno session. I'm fairly certain he enjoyed the RODGE MAHAL.  :lol: We had a good visit. Wayno
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on April 09, 2012, 05:24:58 PM
I haven't had time to catch up on everyone's build thread, but I will when I get home!

Wayno, thanks again for having me at your place-Rodge Mahal was great!

I'm at Vintage Hot Rod Design in Chico, CA., and we just unloaded the engine!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: fredvance on April 09, 2012, 06:35:33 PM
Good luck Buddy!! Larry Forstall calls it birthing, first fire up.

PS you really got me with your April fools thing, almost broke my heart. :cheers:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Rex Schimmer on April 09, 2012, 06:42:11 PM
Good luck Buddy, we are all pulling for you and the Flat Cad!!!

Tom Edison (I think) defined Luck as when opportunity meets preparation. If that is true you have it hammered!

Rex
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Milwaukee Midget on April 09, 2012, 06:50:26 PM
Best of luck, guys - are we taking side bets?  :wink:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: SPARKY on April 09, 2012, 07:19:21 PM
543.21 :?
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Seldom Seen Slim on April 09, 2012, 07:25:43 PM
A landracing.com hat and two of the new oval stickers says somewhere between 550 and 600 hp.  Go to it, Buddy. :-o
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 4-barrel Mike on April 09, 2012, 07:42:34 PM
Video, video, video!

We won't believe anything without video!   :mrgreen:

Mike
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: BoredAndStroked on April 09, 2012, 07:48:32 PM
Video, video, video!

We won't believe anything without video!   :mrgreen:

Mike

Well have video - if I can figure out how to run this new dang camera!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Seldom Seen Slim on April 09, 2012, 08:34:10 PM
"...if I can figure out how to run this new dang camera!"

That's why grandchildren were invented. :-)
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on April 10, 2012, 06:52:45 PM
Gonna fire it in an hour or two!

Videos to follow.....
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Milwaukee Midget on April 10, 2012, 07:07:54 PM
Tear that dyno off its moorings.  :cheers:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: jpm49c on April 10, 2012, 07:53:00 PM
487 hp
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Milwaukee Midget on April 10, 2012, 07:59:22 PM
 :cheers:

I feel like a kid watching the Teletubbies.

AGAIN - AGAIN!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Milwaukee Midget on April 10, 2012, 11:15:44 PM
Just going back through the build, you were looking for "north of 450".

487? 

I say "Bullseye".

Well done, guys.  :cheers:

Looking forward to additional reports.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on April 11, 2012, 01:32:15 AM
The beast lives! :cheers:

We fired the engine, and she sounds like a SNOTTY BITCH- I expect bid numbers, flathead wise!! We have a mechanical water pump issue, and will substitute an electrical water pump in the morning.

Serious dyno work will commence tomorrow, once Don, Carl, and Jim join us!


G'night!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: WOODY@DDLLC on April 11, 2012, 09:28:05 AM
The beast lives! :cheers:

We fired the engine, and she sounds like a SNOTTY BITCH- I expect bid numbers, flathead wise!! We have a mechanical water pump issue, and will substitute an electrical water pump in the morning.

Serious dyno work will commence tomorrow, once Don, Carl, and Jim join us!


G'night!

Buddy, you saying FlatCaddy has a new name - or just powered by the SNOTTY BITCH?  :cheers:

Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: SPARKY on April 11, 2012, 12:31:57 PM
Woody you and your nicknames  :-P
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Stan Back on April 11, 2012, 12:55:12 PM
I'm thinking that Reply 1049 of 487 HP was someone's guess in the pool rather than a pull (?).
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Tman on April 11, 2012, 03:25:46 PM
As of 1:15 MTN they have not done a pull, still working on some little things. My man inside will send word when it happens :-D :wink:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: SPARKY on April 11, 2012, 03:37:52 PM
 :? baited breath  :lol:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Seldom Seen Slim on April 11, 2012, 03:53:10 PM
Sparky, unless you've been snacking on sardines or other minnows -- I think you meant to say "bated" breath.  Just sayin', you know. . . :evil: :evil:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on April 11, 2012, 03:57:08 PM
Still taking it easy-second run with 7lbs boost was 351 hp and 434 torque!

We are a LONG ways from the engines potetial!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Tman on April 11, 2012, 04:02:19 PM
Carl is slacking, Tim and I expect better commo!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Glen on April 11, 2012, 04:02:38 PM
we all have goose bumps waiting for the results, awesome build with a lot of build history on it.  :cheers:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: jl222 on April 11, 2012, 04:38:27 PM
Still taking it easy-second run with 7lbs boost was 351 hp and 434 torque!

We are a LONG ways from the engines potetial!

  Lookin good, are you logging boost temp before and after intercooler?

  Got lots of ice for intercooler water? We were always running to get some.

  Dang got to leave for awhile, good luck :cheers:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: jpm49c on April 11, 2012, 05:15:44 PM
 Yes! Just my guess! 
I'm thinking that Reply 1049 of 487 HP was someone's guess in the pool rather than a pull (?).
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on April 11, 2012, 05:24:57 PM
Guys, we just saw 496 hp @5000 rpm, with a LOT of hp still available!

You can only imagine what Dale and I are feeling at the moment!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Tman on April 11, 2012, 05:26:15 PM
Guys, we just saw 496 hp @5000 rpm, with a LOT of hp still available!

You can only imagine what Dale and I are feeling at the moment!

My jaw is on the keyboard! :-o
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Elmo Rodge on April 11, 2012, 05:40:09 PM
Oh yeah.  :-D Wayno
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: saltracer1 on April 11, 2012, 05:40:56 PM
"You inspire me!" Peggy
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Milwaukee Midget on April 11, 2012, 05:54:31 PM
Don't use it all up in the bullpen!  :wink:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: dw230 on April 11, 2012, 05:59:21 PM
Beck's dyno is known to read way to the high side.

 :cheers:

DW
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Jon on April 11, 2012, 06:02:18 PM
Congratulations guys :cheers:

jon
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Elmo Rodge on April 11, 2012, 06:04:19 PM
Beck's dyno is known to read way to the high side.

 :cheers:

DW
So are his timing slips.  :cheers: Wayno
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Rex Schimmer on April 11, 2012, 06:05:22 PM
Way to pi$$ on Buddy's party DW!! It is looking like somewhere considerably above 500 is going to be the answer.

Pull the handle and make some noise!!!!!

Rex
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: interested bystander on April 11, 2012, 06:48:31 PM
Absolutely GREAT line, Wayno!

And Rex is right , why rain on a guy's parade that's done one of the best build diaries on LandRacing ever, and came out to SoCal a while back and beat EVERY member of one of oldest SCTA clubs in a go-kart competition!

DW230 took a hiatus a while back, maybe it's time for another!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on April 11, 2012, 06:58:43 PM
Knowing how many times Dan has teched a Beck car, I took. Dan's comment as a 'tongue in cheeck' thing!

Final numers tonight!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: vintagehotrod on April 11, 2012, 07:29:18 PM
numbers are going up, pulled to 5500 and saw 529hp. still going up but we think 5500 is good for this vintage engine , however , we are changing top pulleys for another 4 or 5 lbs of boost. these guys did there homework and built a truly bad azz Cad.
If the numbers go up any farther they will equal DW's golf score at the 9 !!! He He ....bwahahahaha....
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Dr Goggles on April 11, 2012, 07:38:47 PM
................sauce on that DW? :wink: :wink: :wink:

5500!!!!! hope yr wearing a hard hat Vintage, great news , they've certainly put in the hours.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Peter Jack on April 11, 2012, 07:52:52 PM
WOW!!!  :cheers: :cheers: :cheers:

Love those numbers.  :-D :-D :-D

Pete
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Seldom Seen Slim on April 11, 2012, 08:18:31 PM
Hey - my estimate of 550 - 600 (I think it was) might not be so far off after all.  I guess you'd better give me an address so I can get the stickers in the mail to you.  Corngratulations, of course -- great results from a fine build.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Milwaukee Midget on April 11, 2012, 08:22:19 PM
Just going back through the build, you were looking for "north of 450".

487? 

I say "Bullseye".

Well done, guys.  :cheers:

Looking forward to additional reports.

Did I say "Bullseye?"

This is turniung into a hat trick!  :cheers:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: SPARKY on April 11, 2012, 08:53:34 PM
SSS does the smell of fish oil on my breath :-o qualify  lol

if they get 4 to 7 more PSI  SSS just may be in the cat bird seat but that avg to 575  so he may be closer than my 543.21   the backward idiot guess  :evil:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on April 11, 2012, 08:54:20 PM
We have the tune we are going to run, but it is FAR from the amount avaiable! Still, the numbers are almost unbelievable!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Jorge on April 11, 2012, 10:25:47 PM
I just saw the numbers... :-o ....looking forward to seeing it run this year... :cheers:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Kiwi Paul on April 12, 2012, 12:10:50 AM
WELL???!!!!..Enquiring minds REALLY want to know those numbers! I was not sure enough to post my guess errr calculation...(595 hp....)....but I`d be interested to know how far off I am.... :-D
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Milwaukee Midget on April 12, 2012, 12:18:31 AM
This is kind of like watching a no-hitter unfold.  I keep wanting to ask, but I don't want to jinx it.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Tman on April 12, 2012, 01:38:22 AM
Wait for it................. :wink:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on April 12, 2012, 02:19:57 AM
Guys, it's been a long, but rewarding day! We tuned the engine VERY conservatively, never exceeding 5500 RPM, or 14.2lbs boost. I'm not B.S.ing when I say there is a LOT of HP left to be had, but we are not sure at what cost the extra hp may come!

I've tried to post a couple of short videos, with no luck. I'll try again in the morning-if that doesn't work, I'll post a screen shot of the final run.

I REALLY want to thank everyone for the support, and kind words of encouragement! :cheers:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Jorge on April 12, 2012, 05:34:54 AM
I would give up the numbers..that i saw last..but its not my build nor my engine...i quess we'll just wait for the owner to give them up... :cheers:......
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: BoredAndStroked on April 12, 2012, 10:58:53 AM
570 HP at 5500 rpm, 564 Torque at 4700, 14.2 boost . . . and we were being 'gentle'!  :-D

We had a fantastic day yesterday - the engine is a beast!   It ran smooth as hell and the HP graphs just continue to go up.   I'll say that John Beck is one HELL of a engine guru and having him showing us rookies how to setup and run the injector and how to go through the dyno process was fun, rewarding and as good as it gets.   Hats off to John and the whole Vintage Hot Rod crew - one class operation for sure!

Buddy and I were more than pleased with the numbers - to make 570 HP and a peak torque of 564 at 4700 -- those were better numbers than we'd wished for.   I like the fact that we have a conservative tune and the motor just eats it up -- kind of like a thoroughbred horse when you give her the reins!  Hang on!   Who would have thought this ole 'Tank Motor' could do this?  

Thanks for ALL for the support we've received - has been a truly amazing group of folks working with us, pushing us along and listening to all our babble.

When I get back to Columbus I'll edit a bunch of the video stuff and get some good stuff posted - won't be until this weekend.

Have a great day gang!

B&S
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on April 12, 2012, 11:07:41 AM
 :-D :-D :-D
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: JoshH on April 12, 2012, 11:10:29 AM
Well done guys! Times like these make all the stress worth it.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Elmo Rodge on April 12, 2012, 11:16:50 AM
Unreal. Buddy, if you're coming back this way don't forget to stop by. Wayno
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Tman on April 12, 2012, 11:27:02 AM
From Buddy via Stan. Never posted a video before, lets see if it works


(http://i90.photobucket.com/albums/k246/surlytman/lakester/th_VID-20120411-00002.jpg) (http://s90.photobucket.com/albums/k246/surlytman/lakester/?action=view&current=VID-20120411-00002.mp4)
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: dw230 on April 12, 2012, 11:33:41 AM
I thru the "cheers" thingie into my post as an indicator, missed by some I suppose.

Good job, see you in August - those that attend of course.

DW
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Milwaukee Midget on April 12, 2012, 11:39:06 AM
More of the same -
I see Trent has beat me to it -
as usual . . .
(http://i361.photobucket.com/albums/oo58/milwaukeemidget/th_VID-20120411-00002.jpg) (http://s361.photobucket.com/albums/oo58/milwaukeemidget/?action=view&current=VID-20120411-00002.mp4)
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Stan Back on April 12, 2012, 11:44:48 AM
Thanx both of you -- I knew I could count on you both.  Just wanted to get it done.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Tman on April 12, 2012, 11:49:21 AM
No worries Stan, you simply owe me a beer in August :-D :cheers:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Stan Back on April 12, 2012, 11:51:06 AM
Sorry -- you'll have to be man enuf to deal in pink stuff.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on April 12, 2012, 11:58:05 AM
Stan, Chris, Trent- thanks for getting those posted!

We'll have more when we get home and figure the cameras out!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Tman on April 12, 2012, 12:00:11 PM
No worries, thanks for letting us be the proverbial fly on the wall and congrats!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Seldom Seen Slim on April 12, 2012, 12:23:02 PM
Trent, Buddy sent me two video clips to post -- but before I try that -- are they (probably) the one or two that are already up?  The fist frame looks the same to me and I won't put it up if it's just a duplicate.

In the meantime -- unh, mmm, did I guess pretty danged close or what? :cheers: :cheers:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Tman on April 12, 2012, 12:24:45 PM
Trent, Buddy sent me two video clips to post -- but before I try that -- are they (probably) the one or two that are already up?  The fist frame looks the same to me and I won't put it up if it's just a duplicate.

In the meantime -- unh, mmm, did I guess pretty danged close or what? :cheers: :cheers:

Yeah, same clips I would say.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: maguromic on April 12, 2012, 12:56:10 PM
Buddy, You and your crew have done a fantastic job and proved all the pundits wrong.  One of these days I need to pick your brain on flat heads.  :cheers: :cheers: :cheers: Tony
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Milwaukee Midget on April 12, 2012, 01:05:57 PM
Stan, Chris, Trent- thanks for getting those posted!

We'll have more when we get home and figure the cameras out!

Don't wast valuable dyno time on cameras. 

Make power!  :-D

You can always post the graph.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: desotoman on April 12, 2012, 02:51:16 PM
Buddy and Dale,

Best of luck on the dyno. Anyone willing to take a guess at the HP this beast will make. My guess is 550-600 HP depending on boost.

Tom G.

Buddy and Dale,

Congratulations I never had a doubt about the HP numbers, as that is the easy part. Keeping the motor together for the runs required is another story. You have all the HP you need, now just concentrate on reliability and you will set a lot of records. I am very happy for you, it has been a great journey so far, I wish you the best at Bonneville this year.

Tom G.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: SPARKY on April 12, 2012, 04:14:08 PM
 :cheers: :cheers: :cheers:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: vintagehotrod on April 12, 2012, 04:30:01 PM
hopfully next year they will bring it back and we can put some fuel in it!!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on April 12, 2012, 04:41:24 PM
hopfully next year they will bring it back and we can put some fuel in it!!


OH YA!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Tman on April 12, 2012, 05:30:18 PM
Vid from our pal Carl

http://youtu.be/89rVb497_4c
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Stan Back on April 12, 2012, 05:53:39 PM
Too damm short!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Kiwi Paul on April 13, 2012, 01:46:26 AM
What a GREAT VIDEO!Yes, it`s too short, but that really shows a mild tune and a great baseline....I think my guess wasn`t bad--Congratulations everyone! Looking forward to seeing this in the flesh in just a few months.... :cheers: :cheers: :cheers: :cheers: :cheers: :cheers: :cheers:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Roseville Carl on April 13, 2012, 11:08:30 AM
(http://ttps://lh3.googleusercontent.com/-GpWW-wt0gfY/T4g_6WbtZpI/AAAAAAAABUQ/dq-oJpILBgs/s400/start%2520up%25200051.jpg)   :cheers:

http://www.youtube.com/watch?v=GEHHOSb0X-8&context=C4e66f10ADvjVQa1PpcFMBGurfmQHt5uEpvL2P8f1daUawujOroUs=

http://www.youtube.com/watch?v=7hRCa5Ln39k&context=C4aebda2ADvjVQa1PpcFMBGurfmQHt5tUkHs8xHCxN_H4Zf8DU0Ec=



Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Tman on April 13, 2012, 11:14:46 AM
Oh oh, Carl found the place! Welcome Carl! Intro section is up top.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on April 13, 2012, 12:44:17 PM
Carl, great videos!

Thanks for all the kind words and support, everyone!

I'm at our racing patron saint Don's place-D&D Engineering in Turlock. Don doers amazing machine work! We're aligning the tranny precisely with the block. Hopefully, Don will post pics of the process!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on April 14, 2012, 08:40:26 PM
I gotta give the team kudos here, from the vision, design, workmanship, and implementation-all turned out great! :cheers:

What an exciting trip! I was scheduled to leave Monday. Easter Sunday, after everyone had left, I was getting all the parts ready I needed for the trip. My wife suggested that I leave, so that I would not have to drive straight through. As I was asking her if she was sure, I was loading the truck as fast as I could!

After stopping to see Wayno (it was a blast), I arrived mid- afternoon on Monday, and John and I unloaded the engine. Later in the afternoon, John got it set on the dyno. I checked out Chico, then picked Dale up from the airport.

Tuesday morning Dale and I chatted over breakfast, then headed over to Vintage Hotrod, and spent most of the day hooking everything up. Late Tuesday afternoon, we fired the Flatcad for the first time! We were pumped, to say the least, and headed for steaks and drinks. The waiter put too much ice in our drinks, though, and hurt us a little!

Wednesday, after several aspirin for the ice overdose, Dale and I headed downstairs to have breakfast with Don, Carl, and Jim, who came over to watch the festivities .I left my paperwork on John's desk, so until he sends it to me, I'll go off of memory. First run we had it set real fat, and pulled around a 185 HP at 4500 rpm. . We leaned out the next run, set the timing, and got 351? off of just over 7 lbs boost. We kept at it, until we reached the 570 HP, 544 ft/lbs torque, at 5500 and 14.2 PSI boost. Sooo, back for steaks and drinks!

Thursday I settled the bill with John, and Dale and I got the engine ready to travel, loaded it up, and I took off for Don's shop=D&D Engineering in Turlock, CA.

Friday, Don had several guys jump in and help, and not only did we get the new oil pump idler pulley assembly made, but got the bellhousing lined up correctly

The trip home included 24" of snow on Donner Pass, rain into Utah, and being stuck on the interstate in a snowstorm, in western Wyoming, due to an accident-But I'm home!

The only issues we had were a poorly installed freeze plug, that popped out, and the Barnes/Esslinger oil/water pump. The water pump didn't work at all, so we went to an electric pump. The oil pump bolts to the water pump, and the whole setup was put together at Barnes, then installed by us. By the 6th pull, the bolts c]ames loose on the oil pump, some even fell out! I'm pretty sure we bent the shaft, and tore up the vanes. It will be interesting to see what they say Monday!- see pic

I have to give Don and John props here- if you need any machine work, or laser cutting, give Don at D&D engineering a call. He's a Flatcad sponsor, team member, Hotrodder, and a helluva talented guy!

I wouldn't even think of taking an engine somewhere besides John, after our experience! He's a proven engine builder, takes the time to explain everything, and is 1st class in his approach to getting things done!



We're going to 'ease' into this, slowly and as methodically possible, on the dirt and salt this year. After we're done running, we're going to tear down the engine, and look for the tweaks that might bring HP, without adding more boost-head flow, cam, ignition, etc.



1st pic is breakfast Wednesday morning- from the left, Don, Carl, Jim, and Dale.

Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Elmo Rodge on April 14, 2012, 08:59:48 PM
Glad you made it home safely. Once again, I enjoyed the visit. Wayno
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Captthundarr on April 15, 2012, 09:23:15 AM
Congrats fellas. good to here the Flatcad sing. :cheers:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Milwaukee Midget on April 15, 2012, 01:00:34 PM
We kept at it, until we reached the 570 HP, 544 ft/lbs torque, at 5500 and 14.2 PSI boost.

I think about basic parameters you guys started with, the age of the design and the compromises that were built into place before you even started the build.  This is a great acievement.

Well played!

Chris
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: zenndog on April 15, 2012, 03:24:55 PM
 :-o       :cheers: :cheers:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on April 15, 2012, 08:34:21 PM
Thanks Guys!

Here's what we did at Don's place, in Don's words:

Well Buddy is finally home from the tour of California !!!
We spent the day at my shop aligning the bell housing to the center line of the crank shaft ( the center line of the crank has been moved up towards the cam ) and also Designing a new tension bracket for the oil pump. I first built and alignment tool on the lathe to mount to the rear of the crankshaft.

We machined a shaft on the lathe and finished the mounting surface and bearing diam. between centers to make sure there was no run out .. we used a wide roller bearing on the end to mount the indicator to. We then mounted the shaft to the crank shaft, then mounted the bell housing ((((( SORRY ABOUT THIS DALE !!---- BUT ----------THIS IS WHERE BUDDY GOT THE HAMMER IN HIS HAND ))))))))

We dialed the trans pilot in within .002 to the crank. We then drilled and doweled the bell housing with 2 each 3/8" dowel pins.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on April 15, 2012, 08:36:05 PM
We also laid out the new tensioner with auto cad , laser cut a 16 g sample for testing and lasered the finished part in 3/8"
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Rex Schimmer on April 15, 2012, 08:38:16 PM
If it doesn't go force it, if it breaks it needed to be replaced anyway!!!

When you have a hammer in your hands everything looks like a nail!!

Hit it again, Buddy!!!


Rex
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: WOODY@DDLLC on April 15, 2012, 09:13:44 PM
Buddy, just three steps!

1.) Measure with laser!
2.) Mark with chalk!
3.) Cut with sharp axe!  :cheers:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: BoredAndStroked on April 15, 2012, 09:25:14 PM
Buddy and Dale,

Best of luck on the dyno. Anyone willing to take a guess at the HP this beast will make. My guess is 550-600 HP depending on boost.

Tom G.

Buddy and Dale,

Congratulations I never had a doubt about the HP numbers, as that is the easy part. Keeping the motor together for the runs required is another story. You have all the HP you need, now just concentrate on reliability and you will set a lot of records. I am very happy for you, it has been a great journey so far, I wish you the best at Bonneville this year.

Tom G.

Thanks Tom and also to everybody else on this thread -- we really appreciate the support, the kind words and the interest in the FlatCad.   It was a fantastic week to say the least!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on April 19, 2012, 06:59:18 AM
I spoke with Barnes, and sent them the oil pump back. They said they doubted there was any damage, due to the fact the pump shaft is supported on both sides. When you turn the pump, you can feel the vanes rubbing, so I have to believe there is some damage, even though there was no metal in the filter.

I’m back at work until May 6th, then home for the thrash, to try and get ready for El Mirage. I have to install the new water tank in the rear, fuel tank in the front, do all the plumbing, a lot of electrical, and get the car on scales.

It will be a thrash, so if you’re close, and bored….. :-D
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: BoredAndStroked on April 19, 2012, 09:38:31 AM
When you turn the pump, you can feel the vanes rubbing, so I have to believe there is some damage, even though there was no metal in the filter.

I believe the Barnes pump stages are gear driven - if you feel rubbing/binding, then there is probably something fubared with the shaft . . . guess we'll find out.  They assembled it - would have been nice if they actually used lock washers, lock-tight, etc . . . obviously the bolts to the water pump didn't do the trick!  :-o
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on April 21, 2012, 10:57:27 AM
When you turn the pump, you can feel the vanes rubbing, so I have to believe there is some damage, even though there was no metal in the filter.
I believe the Barnes pump stages are gear driven - if you feel rubbing/binding, then there is probably something fubared with the shaft . . . guess we'll find out.  They assembled it - would have been nice if they actually used lock washers, lock-tight, etc . . . obviously the bolts to the water pump didn't do the trick!  :-o

Not gears Dale-3 lobe rotors.
 
 
Ok, guys-I'm looking for a little experienced advice here! I'm starting to put the plan together for the 'new, improved' version of the Flatcad, that will be implemented this winter. These include a roller cam, new forced induction system, flow work-head work, new ignition with engine management, etc.
 
I'm looking for ways to further strengthen the block, without having to go the expensive, time consuming act of a 5 main setup.The block already has billet mains, a very heavy crank girdle, and a crank girdle snout support.
 
How can I make the bottom end stronger still? Pin the mains to the block? Cryogenics? Redesign an exotic 4 bolt main?
 
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on April 21, 2012, 01:26:00 PM
Some of the dyno results from last week.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: SPARKY on April 21, 2012, 01:50:22 PM
45 deg side bolts into the main caps from the std girdle?  I would look at compression instead of tension
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: maguromic on April 21, 2012, 02:04:15 PM
x2 what Sparky said, I would also pin the caps and accommodate for a slide hammer to pull the caps, this is what we did with the GMC. Tony
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: BoredAndStroked on April 21, 2012, 02:42:54 PM
x2 what Sparky said, I would also pin the caps and accommodate for a slide hammer to pull the caps, this is what we did with the GMC. Tony

Hey - I like the 'ghost main' girdle - is it made out of aluminum or steel?  I'd like to see what you think about one material versus another - would seem to me that materials with the same/similar expansion rates would be ideal --> steel girdle on cast-iron block, aluminum girdle on an aluminum block.

=====================

Design Details:

I'm the guy that designed and fitted the whole lower end setup -- modeled it all in 3D CAD and then Don cut/machined the parts.   He kept my design tolerances exactly on the mark - some of the best machine work in steel that I've seen.   :-D

The main caps were left about .005 oversize on height and width.  I then used my surface grinder to precision size them for both height (for crush) and side-to-side width - they are spot on in the saddles . . . you have to tap them in with a brass hammer.  The main cap studs are 9/16 (high quality ARP stuff).  The thick steel girdle ties together the whole lower end and there is a 'crush fit' on the tops of the main caps.  We're picking up the oil-pan rails to tie the girdle to the block for extra strength.   The whole point was to reduce the chance of cap walk and use the whole bottom of the block for added main strength . . . we'll see if this works or not.

Truth is, we don't know where the weak areas are on this block.  Until we see what is happening with the bearings and if there is any cap walk (which I doubt there will be - given the crush), we don't know if any additional steps are necessary and where to apply them.  If we happen to see cap walk or movement, it is easy to add dowel pins and crap - but I'm leaning toward this not being an issue.   Frankly, I'd love to have the setup we have on the FlatCad on my flathead Fords (which is why I'm designing a 5-main girdle setup for the Ford - with similar structural strength, but that conversation is for a different day!).

Block Structural Strength:  My best guess is that the overall structural strength of the block itself will be our limiting factor (from a rotating assembly perspective).  If the pan rails and main stud threads and block structure can handle the horsepower, then we'll be okay - if they can't, then we have another whole set of issues to ponder  (and I have some interesting structural augmentation design ideas along that line  :roll:).  

Cylinder Pressure and Deck:  An area where we're probably more at risk is the overall strength of the cylinder walls - just how much pressure can they take??? Who knows!  Block filling and staking may help - but that needs to be done before boring (need to review my sonic testing numbers for cylinder wall thickness).  Also, we'll need to see what the heads and the deck are doing . . . the deck itself could be another major issue for higher HP and boost.

Always fun to ponder ways to get more HP out of this beast - though I'm going to concentrate on this year and learning as much as possible about what this combination is actually doing.   Hopefully we'll learn more - without and disastrous consequences.   :-o

Dale
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on April 21, 2012, 03:38:02 PM
45 deg side bolts into the main caps from the std girdle?  I would look at compression instead of tension

x2 what Sparky said, I would also pin the caps and accommodate for a slide hammer to pull the caps, this is what we did with the GMC. Tony

Sparky and Tony, that is the main thing I'm looking at! I spoke with Corky Bell for a long time yesterday. He feels with the current setup, and a move to turbos, I could achieve the HP I'm looking for with 20.5 lbs boost, if we get the turbos sized to spool near their max efficiency.

Garry's testing of the heads, makes me think that if we followed up on the flow, that we may pick up more flow with a little 'tweaking of the heads. More CFM=More HP available without more boost. I also think that while we have a very good cam, some thought there could lead to some gains. The turbos themselves give some extra HP at the same boost, and port injection, along with fuel, engine managed timing, should help us combat detonation, while getting good HP.

 And I really like the idea of pinning the caps!

x2 what Sparky said, I would also pin the caps and accommodate for a slide hammer to pull the caps, this is what we did with the GMC. Tony

Hey - I like the 'ghost main' girdle - is it made out of aluminum or steel?  I'd like to see what you think about one material versus another - would seem to me that materials with the same/similar expansion rates would be ideal --> steel girdle on cast-iron block, aluminum girdle on an aluminum block.

Block Structural Strength:  My best guess is that the overall structural strength of the block itself will be our limiting factor (from a rotating assembly perspective).  If the pan rails and main stud threads and block structure can handle the horsepower, then we'll be okay - if they can't, then we have another whole set of issues to ponder  (and I have some interesting structural augmentation design ideas along that line  :roll:).   

Cylinder Pressure and Deck:  An area where we're probably more at risk is the overall strength of the cylinder walls - just how much pressure can they take??? Who knows!  Block filling and staking may help - but that needs to be done before boring (need to review my sonic testing numbers for cylinder wall thickness).  Also, we'll need to see what the heads and the deck are doing . . . the deck itself could be another major issue for higher HP and boost.


Dale


Dale, There won't be a 5 main girdle next year- money and turn around time from Crower won't allow it, even if the design were to be done in time.

 I disagree about the caps not being an issue-At the HP we talked about the other night, I think the whole bottom end could become an issue .I still want to lighten the rotating assembly, and tie the bottom end together even more than we have.

AT 20 psi boost, I believe the deck and cylinder walls will be fine, and I think the top girdle is a plus in helping us keep the engine solid. I want to send the CAD engine model to the engineering company,after we come up with our proposed changes. We'll see what they think it will do, then dyno it to see if they are right!

You keep saying that "I have some interesting structural augmentation design ideas along that line", but you won't expand on the statement. I'm going to come up with a plan for the proposed changes, and the day after Speedweek, the engine is coming apart to implement those changes. Of course, if we end Speedweek early, it may not be with this block! :?
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: DND on April 21, 2012, 07:20:42 PM
Hi 38'

Back in the early fueler days Milodon made a 1" thick steel girdle that bolted to the pan rails and center cross bars held the 3 center main caps, with a little pre load on the fly cut top surface of the cap.

That might help your block, but you still have a 3 main crank that is only going to take so much load before it breaks.

My 2 c worth

Don
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: maguromic on April 21, 2012, 07:22:30 PM
BoardAndStroked, Nothing ghostly about the mains, it’s a 7 main setup for the GMC.  I originally wanted to make it out of billet steel, but Doug Robinson loaned me the pattern to his GMC girdle to make one.  It was a lot easier to cast it than carve it, so after consulting with many engine builders and people I respect I decided to go that rout.  I am not worried about the expansion rate and besides all the SBC aluminum blocks I have seen have steel billet caps.  My vintage race car has one and I have flogged it for over 10 years without any issues.  Also the Gurney oil pans from the stock block Indy days of the early 80’s had the front and rear caps cast with the pan with the center caps in billet steel and they held up fine for 500 miles.

I think the biggest issue you will have whether you use steel or aluminum is it will want to walk on you.   On my  GMC the caps and girdle are cross bolted, has dowels and is pinned.

Last week I was talking with Doug Robinson about oil pans and he said something very profound.  “When you are over 100 horsepower from the nearest guy whey worry about it”. Or what Don Ferguson told me about efficiency on a GMC a few years ago “Just add more nitro”.    :-o

Now back to the heat wave (its HOT here) to finish some fab work.  Tony


SBC Gurney Indy pan
(http://i273.photobucket.com/albums/jj236/maguromic/sbcindypan.jpg)
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Tman on April 21, 2012, 07:26:44 PM
This is better than surfing porn!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on April 21, 2012, 07:32:41 PM
Hi 38'

Back in the early fueler days Milodon made a 1" thick steel girdle that bolted to the pan rails and center cross bars held the 3 center main caps, with a little pre load on the fly cut top surface of the cap.

That might help your block, but you still have a 3 main crank that is only going to take so much load before it breaks.

My 2 c worth

Don

Don,

If you look at post 1126, you'll see that is exactly what we have, only it's 1.25" thick, with a crush fit on the caps.
The crank is a heavy billet main-it will/should handle more than our HP goals.

Tony, that's a nice piece! I like the idea of adding cross bolts, dowels, and pins to the Flatcad.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on April 21, 2012, 09:06:05 PM
Here's a sneak peak of something we've been working on! It's not done, so check back on it soon!

http://www.flatcadracing.org/
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 4-barrel Mike on April 21, 2012, 09:17:25 PM
 :cheers:

Mike
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Milwaukee Midget on April 22, 2012, 09:52:52 AM

Well first off, congratulations on some pretty impressive numbers.  What is frightening is that you are doing it with only 3 mains.

But I’d check to see if there is a problem first.

Yeah, I know, you asked for "experienced advice" - would you settle for an outside the box thought?. 

I’d concentrate my efforts on the center – it’s the least supported.

Can you machine a girdle with the center cap integrated - one piece - and splaying out parallel with the webs? 

(http://i361.photobucket.com/albums/oo58/milwaukeemidget/RearCap_InBlockX1.jpg)

Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Richard 2 on April 22, 2012, 10:45:42 AM
Outside the box. Why not tie the main girdle to the heads outside the block. With gathering bolts of some type.
Richard
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on April 22, 2012, 11:00:15 AM

Well first off, congratulations on some pretty impressive numbers.  What is frightening is that you are doing it with only 3 mains.

Frightening? I prefer 'dangerously exciting', or 'tantalizingly nerve wracking'! Lol!

But I’d check to see if there is a problem first.-Chris, with the HP I'm trying to achieve, I have to assume everything is a problem at this point, and can change that stance once we are convinced it's not.

Yeah, I know, you asked for "experienced advice" - would you settle for an outside the box thought?.  Absolutely-Thanks!

I’d concentrate my efforts on the center – it’s the least supported.-I agree.

Can you machine a girdle with the center cap integrated - one piece - and splaying out parallel with the webs?  That is a definite consideration, along with most of the suggestions above.



Outside the box. Why not tie the main girdle to the heads outside the block. With gathering bolts of some type.
Richard



Richard, I'm going to discuss that idea with Dale!

Thanks!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: SPARKY on April 22, 2012, 11:28:58 AM
is there a head bolt that lines up with your new main caps---you being a driller you may figure a way to DRILL down  :-o  and tie in!!  :cheers:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on April 22, 2012, 11:49:57 AM
Sparky, the head bolts are on an angle to the main bolts.

I drill directional wells, but haven't yet tried directional bolts! :-D
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Milwaukee Midget on April 22, 2012, 12:37:56 PM
Outside the box. Why not tie the main girdle to the heads outside the block. With gathering bolts of some type.
Richard

 :roll:

Look up the K series Rover/MG engine.

http://en.wikipedia.org/wiki/Rover_K_engine

Maybe think of the girdle as the crankcase - the block as the cylinders sandwiched between the girdle and the heads.


Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: SPARKY on April 22, 2012, 06:47:24 PM
we want them to be at an angle  if we can get to a main cap on an angle---would be very similar to "splayed" ---reverse angle--- just doesn't rely on original block main webbing for strength has the whole block to 'sandwich" for strength
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on April 22, 2012, 08:30:51 PM
Duh-of course we do! I'll check out the spare block when I get home, but I don't think it will work.

I'm thinking a real heavy bedplate, cross bolted through the outside of the block, into the mains, with a center main splaying out parallel with the webs, like Chris mentioned.

The cross bolts could go through a 'plate' on the exterior of the engine, to help 'spread' out the load.

Anyone think of a reason this won't work?

Of course, I'm REALLY open to ideas here!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: maguromic on April 22, 2012, 11:03:32 PM
Buddy, Another problem you will run into with high boost is keeping your bores round.  Think about posting your block and maybe adding a 1" square band around the block, we are going to be doing all this to the GMC.  I first saw the band on Pete Ardema's V4, its a turn buckle style and he just tightens each side to where he wants it. Tony
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on April 23, 2012, 06:40:23 AM
Tony, that's a very intriguing idea!

Do you have any pics of this setup?

OK, I'm going to need 25-30psi boost. How do I figure cylinder pressures, based on that?

Is there a rule or calculation, to figure out if the cylinder should handle the pressure, cased on wall thickness?

Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: maguromic on April 23, 2012, 04:28:10 PM
Buddy, its really easy to build out of 1" or 3/4" square on an inline engine like the V4 or in our case the GMC.  On a "V" style motor you would have to do some fitting but it can be done.

This is Pete's V4 motor, notice the band with the turnbuckle below the head.  Tony
(http://i273.photobucket.com/albums/jj236/maguromic/Injection_1.jpg)
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Tman on April 23, 2012, 04:32:43 PM
Also a "block posting" link I think Tony showed me.

http://www.muller.net/sonny/crx/engine/posted.html
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: hotrod on April 23, 2012, 05:18:44 PM
This is the way the subaru performance community pins a block to stabilize the cylinders.


(http://i150.photobucket.com/albums/s110/binjoau/P1010009.jpg)

Image source= http://forums.nasioc.com/forums/showthread.php?t=2267859

They do a plunge cut with an end mill then push an aluminum dowel into the cut and then finish it to the surface of the block.
This way you are supporting a length of the cylinder wall not just a point and at the very top of the cylinder where your peak cylinder pressures occur.
Peak cylinder pressure occurs with the piston only about 11 -14 crank degrees past TDC, if you work that out geometrically the piston is only a fraction of an inch down from the top of its stroke when peak cylinder pressure occurs.

This method also does not breach the exterior of the block and create a possible coolant leak path.

[edit] the pins are only an inch or so long.[/edit]

Larry
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Tman on April 23, 2012, 05:26:50 PM
That is very cool info Larry!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: RichFox on April 23, 2012, 06:00:50 PM
Block pinning is good for die cast blocks. Don't know about old Cads.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Jack Gifford on April 24, 2012, 01:15:07 AM
... Peak cylinder pressure occurs with the piston only about 11 -14 crank degrees past TDC, if you work that out geometrically the piston is only a fraction of an inch down...
However, the force on the walls (pressure x area) is greatest with the piston (or more precisely, the top ring) a significant distance further down than that. And, the greatest bending moment on the walls is even further down yet.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Jack Gifford on April 24, 2012, 01:21:54 AM
... This method also does not... create a possible coolant leak path...
In a dry-deck engine it would however create a coolant leak potential that wouldn't otherwise exist.

The possibility of coolant steam pockets seems worrisome also, if used at 4 - 6 spots around each cylinder.

Looks to me like a "crutch" for insubstantial cylinder walls. Crutches have their place, such as during an event; but not in the design phase.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Milwaukee Midget on April 24, 2012, 09:28:28 AM
Have you checked the wall thickness?
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on April 24, 2012, 09:52:53 AM
Chris, my paperwork from the sonic testing is at home.

Under our original build goals, it wasn't much of an issue. If memory serves me correct, the minimum is .120. I might be mistaken, it might be a thin .100. Dale has a copy too, and I'm trying to get in touch with him.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on April 25, 2012, 07:46:09 PM
Chris, the walls are .150, save one cylinder with a thin spot towards the top, and it's .120.

Hopefully, we can hold them in place, and make them work.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Roseville Carl on April 26, 2012, 11:47:10 PM
Hell buddy with that much left you should be able to punch it out at least .115....................... :cheers:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: SPARKY on April 27, 2012, 12:44:31 AM
woooo like the pu avatar
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on April 27, 2012, 08:09:56 AM
Hell buddy with that much left you should be able to punch it out at least .115....................... :cheers:

Carl, didn't you try that? :evil: :-D

Don, Dale, and I have been burning up the phone lines and email. We're all on the same page with the engine mods for this winter, and planning has started. That is one of the advantages of being so far apart geographically-only a couple of people are generally turning wrenches at the same time!
 
We have a plan for a new,stronger girdle, and ductile iron sleeves. We'll have to give up 10 CID, but it will be worth it. We're going to do some flow work, and swap to a roller cam setup,turbos, EFI, and computer management.

I've received a few emails, asking me "What the hell are you doing?!" It's simple-The FlatCad team deeply believes in the potential of this engine. We want to perfect it, and see what it has. Our goal is to build the ultimate flathead, and hopefully partner up with a 'fast car'-lakester and/or a liner, and go fast! Ron Main, watch out! Lol!
 
In the mean time, the thrash for El Mirage has begun, with Don working on moving the Liberty tranny shifter, so that it centers on the tranny, about 6" forward of it's current position. I've been ordering the miscellaneous parts needed to complete the car, so when I return home on the 6th, I can get after it. Barnes is supposed to look at the oil pump today.
 
I'm going to have to transport it on an open trailer.What can I put on the windows, to protect the Lexan?
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Tman on April 27, 2012, 09:58:36 AM
And to think this started out as a mild custom/hotrodded lasalle :-o

For the windows go to Menards, Lowes etc and buy the clear clingy plastic they put down on new carpet for realtor open houses to protect it. Works great for many things including masking and does not leave a residue when removed.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on May 02, 2012, 01:16:03 PM
And to think this started out as a mild custom/hotrodded lasalle :-o

 :-D :-D :-D


Don's been busy adapting the crashbox shifter to work.

Looks great!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Roseville Carl on May 03, 2012, 12:01:36 AM
The shifter bracket looks good....
I've always believed that with enough thought and work anything can be built with a 5lb hammer and a 18" pipe wrench..............enough said..........   :cheers:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on May 06, 2012, 11:13:31 PM
I goy back home today, so I thought I'd make one last post before El Mirage, as the thrash begins tomorrow!

Here is the first dyno pull, with the camera in the dyno room.

http://www.youtube.com/watch?v=ErBNSNzFL0o

Crank it up!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Roseville Carl on May 08, 2012, 02:36:04 PM
Carl, didn't you try that?


not telling any secrets.........

Wish ya well at the El sorry I can't make it to see ya run but ya know I just gotta run our own flattie that weekend...........

Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on May 10, 2012, 09:26:51 PM
Carl, good luck with the digger at Eagle Field-we'll catch you on the salt!

Well, I've been thrashing, but have hit the occasional speed bump.
 
I went to put the headers on, only problem was, the driver side hit the magneto! If you look at the pic, you'll see the exhaust still needed to come down .75".
 
I warned everyone that the time for form over function was past-a little cutting, a little welding, and now it will work.
 
No, it's not pretty, and it doesn't match the passenger side, but it sure as hell beats going to El Mirage without the car!

I apologize for not having time to read everyone's build thread, but we can B.S. about them at the lake.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Milwaukee Midget on May 10, 2012, 11:30:26 PM
Match, Smatch - it looks gnarlier that way!  8-)

Have a safe trip to Elmo.  It's been almost 20 years since my one and only time there, but it's the reason I'm building a car today.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Seldom Seen Slim on May 11, 2012, 11:54:04 AM
You will be taking and forwarding photos of the car to me and Ray, right?  Or is it still not in the condition you want?
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Milwaukee Midget on May 13, 2012, 10:48:29 AM
Happy Birthday, Buddy!

 :cheers:  :cheers:  :cheers:

Don't turn 50 without putting the Flatcad in the books!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Roseville Carl on May 13, 2012, 12:00:09 PM
Buddy you might want to put some insulation on that header next to the dist. might get hot enough to melt something!!!!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Roseville Carl on May 14, 2012, 01:26:35 PM
Buddy got those changes done to the video ....under 500 plus Hp Cadallac Flathead.......
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: hotrod on May 14, 2012, 03:05:10 PM

Quote
Roseville Carl
Buddy you might want to put some insulation on that header next to the dist. might get hot enough to melt something!!!!

Simple fix with some header wrap and a radiant heat shield if there is enough room (hard to tell with that perspective).

I have used http://www.thermotec.com/products/14001-aluminized-heat-barrier.html with good success on turbo applications.
Conventional header wrap would work as well .

Larry
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: vintagehotrod on May 14, 2012, 06:46:52 PM
Are ya ready to hit the dirt ? we are leaving thurs morning and will be one the dirt by 3 pm.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on May 14, 2012, 07:54:12 PM
Nope! :cry:

 I'm throwing in the towel for this trip! I thought the driveline would be the issue, but received assurances that it wouldn't. The clutch, however, won't play nice! I'm not sure if the slave is weak, or if there is a problem with this stiff racing clutch.
 
I've got a new slave coming in the morning, but have a feeling it's either bound up inside the bellhousing, or the clutch is just to freaking stiff-I'm leaning towards bound up. It's easier to just pull the engine and tranny, so that's probably next. I'm going to work until noon Wednesday, then load the truck for the journay- I'm picking Wayno up Thursday morning.
 
I still have a few concerns, but will work through/decide on solutions for them:
 
1.) Not comfortable with the RTV sealer/main girdle install-talking with  Dale and Don on this one.
2.) The videos clearly show that we need to find a way to get the blower belt tighter
3.) Need to get the Esslinger water pump to work

Thanks everyone, for the birthday wishes!

Slim, I sent Ray a pic he could use, probably a month ago-we'll just stay with that one.
 
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Glen on May 14, 2012, 07:58:34 PM
some times the hydraulic T.O bearing goes to far and tips at the end of the snout.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on May 14, 2012, 08:17:51 PM
Thanks Glen, but I don't have a hydraulic throwout bearing-just a slave cylinder. I thought it would be easier to change the slave if it went bad, than the throwout bearing.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Glen on May 14, 2012, 08:33:00 PM
OK, it was a thought, see you there this week end.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Elmo Rodge on May 14, 2012, 08:36:36 PM
Rats. Oh well. See you Thursday. Wayno
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: jl222 on May 14, 2012, 08:56:08 PM
  Get a good long and fast push and high gear it :-D Thats what we did when the shift lever broke. Still got in the dirty 2
club on that run :-D

  Saw a Jerry Darian video ( when he was running blown alky) of before and after installing a 2nd idler pully on the power side of blower, took out out that belt flap.

                    JL222
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on May 15, 2012, 09:28:22 AM
JL222, I think you're right about the second pully! :cheers:

Ok, I think I found the clutch problem:

The clutch says 1500 lbs on it, so I'm going to have to assume this is the force necessary to activate it. (yea, I know what they say about assuming!)

The slave is a .875" diameter piston, and the master is a 1.125', putting out 909 PSI. That means I'm only getting 624 lbs of force from the slave. Looks like I need to go to a 7:1 pedal, and .750" master(2386 psi)-that would give me 1639 lbs/force from the slave.



I think....

edit: Oops-forgot about the 'Law of the Lever'!

Anyone have a Ford FE clutch fork laying around they could measure?
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: jl222 on May 15, 2012, 12:53:50 PM
 
  Hope you can fix the clutch problem in time for Elmo.

  That video was a while back and I can't remember if Darian was pushing in or out on the belt, but if out, you might want to used a toothed idler pully,

  RCD...530 292 3133 or RBS Superchargers 530 292 3368 might know more about it and they have the parts.

   Good luck  JL222
       
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on May 15, 2012, 07:12:48 PM
Thanks again, JL222. I decided today, to push in on the drive side, with a very small pulley. On the other side, we'll continue to push out, but with a toothed idler pulley, instead of the smooth one we have now.
 
Well it looks the part, even if it isn't...Think I'll call it the 'Great Pretender'!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Glen on May 15, 2012, 07:31:56 PM
Wayno, you guys stop by for a beer on your way through St.Geo. I am going down on Fri. AM. :cheers:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Elmo Rodge on May 15, 2012, 07:37:02 PM
Wayno, you guys stop by for a beer on your way through St.Geo. I am going down on Fri. AM. :cheers:
I shall broach the subject with Buddy.  :cheers: Wayno
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on May 15, 2012, 07:40:41 PM
Consider it broached-I heard beer!

Thanks Glen-see you Thursday! :cheers:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Roseville Carl on May 28, 2012, 01:04:10 AM
Whats the latest Buddy???
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Rex Schimmer on May 31, 2012, 08:53:04 PM
Buddy,
I know you have been burning the old candle at both ends with a blow torch! but what is the status of the Cad and your car after your trip to So. Cal???

Rex
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on June 01, 2012, 08:35:56 AM
Wayno and I had a BLAST at El Mirage. I hooked up with Sparky, and he sent a large car package home for the winter redo of the FlatCad-Thanks Sparky!

I had to drive straight home from there, jump on a plane, and head to work.

I returned home yesterday, and I'm headed out to work on the car now. Rex, I have to send some pics off to Stu, so that he knows what the current setup is.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Elmo Rodge on June 01, 2012, 09:30:39 AM
Good to see that you made it home alright.  :cheers: Thanx for slowing down to 40 mph when you shoved me out at my house on the way by.  8-) It was definitely a good trip. Wayno
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on June 10, 2012, 05:44:07 PM
I've been gone for a while, and I'm leaving for work again in a couple of days, but I thought I'd post a quick update!

I just finished a 1700 mile trip on the Harley, and spent a couple of days with the kids and grand kids-sure was refreshing!

Thom came over a couple of times, and we got the troublesome clutch working! Thom took the tranny x-member home, and welded up the necessary changes-Thanks Thom!!!!

I've been thinking about adding a second idler, and this morning I did what I knew needed done, so I tore into the FlatCad.  I have the parts marked and boxed up, to ship out to Pops29 in the morning. Pops always does such great work-the tranny shifter mount he did fit like a glove! Thanks again, Don!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Roseville Carl on June 24, 2012, 06:14:33 PM
Uh whats the latest Buddy????
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Milwaukee Midget on June 24, 2012, 07:40:00 PM
Uh whats the latest Buddy????

Hey - Yeah - it's been kinda quiet in Cadiville.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on July 03, 2012, 01:06:18 PM
I've been sidetracked, and pretty quite lately, so I thought I'd post an update.

I replaced some of the head studs, so that I could mount the blower restraint tabs. Unfortunately, the restrains are too tight. It looks as if I'll need to turn them around, so that they point towards the top of the block, and not the bottom. This means a couple of hours with a grinder, grinding some of the fins down so that the tabs fit flush.

Other things left are:

Modifying the tranny tunnel for the new tranny

mounting the fuel tank and plumbing the fuel

mounting the new pulley system

plumbing all the water

plumbing the oil and filters

exhaust

fabbing a new push bar/parachute mount.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: GH on July 03, 2012, 04:11:31 PM
Buddy, keep your nose to the grindstone and you will make it to Speed Week. Have a lot of fun out on the Salt.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Dr Goggles on July 03, 2012, 05:53:01 PM
I've been sidetracked, and pretty quite lately, so I thought I'd post an update.

I replaced some of the head studs, so that I could mount the blower restraint tabs. Unfortunately, the restrains are too tight. It looks as if I'll need to turn them around, so that they point towards the top of the block, and not the bottom. This means a couple of hours with a grinder, grinding some of the fins down so that the tabs fit flush.

Other things left are:

Modifying the tranny tunnel for the new tranny

mounting the fuel tank and plumbing the fuel

mounting the new pulley system

plumbing all the water

plumbing the oil and filters

exhaust

fabbing a new push bar/parachute mount.


You know how you were asking me for those photo's Buddy, well all I can say is you'd better be a Bonneville. This year they should come with words as well. It sounds like even though you're WOT the revs are dropping a little, it is those crappy little things that do your head in when you've come so far. Really looking forward to seeing the Chev with something pokin out o that hole....

One month. :cheers:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on July 03, 2012, 07:47:07 PM
Thanks Gary-we'll be there!

I read the car you were going to crew on won't make it. If you decide to go, a guy with your experience would always be welcome in our camp......

Dr Goggles, I did need a small break, but I'm motivated again! We'll be on the salt, giving it all we've got!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Elmo Rodge on July 03, 2012, 08:56:30 PM
Cool.  8-) Wayno
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Buickguy3 on July 03, 2012, 09:59:53 PM
   Hope to come visit with you in a few weeks, Buddy.
  See you there.
  Doug :cheers: :cheers: :cheers:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on July 06, 2012, 06:24:03 PM
Doug, I'll have the beer cold for ya!

Well, nothing exciting, but progress none the less.

The transfer water pump is plumbed in, and the water is plumbed to the primary pump on the oil pump.

Got bungs welded in the water manifolds, so that the temp sending units can be installed.

The exhaust is modified, so that it clears the dizzy.

The bracket for the dual Pall filters, on the return lines, is done, along with cutting the metal for the fuel tank and oil accumulator mount.

Thom is coming over this weekend, and we'll get the fuel and accumulator mounting plates installed.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on July 08, 2012, 11:26:48 PM

Anyone that has followed this build knows we have some pretty lively discussions on how things should be done. Where the oil filters should be installed was one of those discussions.

Traditionally, the filter goes after the pump, and before the engine, and that was the popular vote for the filter placement. In my industry, we place the filter before the holding reservoir/tank, so that we don't contaminate a 800 gallon tank. A pretty lively discussion ensued, with facts and opinions offered up for both placements.

In the end, I decided that both possibilities had merit. I mounted twin Pall 3 micron filters on the return side, and we will have a Wix racing filter between the oil pump and engine.

Thom and I worked on the oil accumulator mount, and the fuel tank mount today. Initially, they were going to be mounted with 1" angle iron. After looking at it, I decided on all-thread. Why? Because the mounts have to be removable, in order to remove the engine.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: maguromic on July 08, 2012, 11:34:14 PM
Buddy, Your neighbors must love you for working on the car outside.  Here in the Peoples Republic of California I got a ticket for doing an oil change in my driveway this weekend.  Car is looking good, see you on the salt! Tony
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on July 08, 2012, 11:45:52 PM
Tony, you're half right!

We have no HMO, so I'm safe there. All the women think I'm a hillbilly, and all their husbands are over oogling and offering to help!

See you next month on the salt!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: SPARKY on July 09, 2012, 12:21:05 AM
Buddy good to have you back posting!!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: BoredAndStroked on July 09, 2012, 02:37:18 PM
Hey Sparky, Rich and All:

Really looking forward to seeing you all on the Salt this summer . . . will be the true 'maiden voyage' for the FlatCad!   We're all really excited to have a chance for this engine to run - has been a long haul getting it designed, built, tested and "ready".  :-D

Dale
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on July 09, 2012, 11:16:45 PM
The car is loaded up, and will be dropped at Pinkees in the morning to get a bellypan.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Elmo Rodge on July 09, 2012, 11:25:13 PM
Glad to see things moving along. This project is too cool for words.  :cheers: Wayno
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: BoredAndStroked on July 10, 2012, 08:23:13 AM
Looking good Buddy . . . will update you on data logging later today.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on July 10, 2012, 01:58:36 PM
I just dropped the car off at Pinkees.

I fly to work tomorrow morning, so my next update will be the new bellypan, in 2 weeks!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on July 10, 2012, 05:29:37 PM
Ok guys. I have the 2.40 QC gears  (21/36 teeth).

We need either 2.8 (17/25), 2.79 (21/31), or 2.75 (22/33)

and 2.54 (16/26) or 2.53 (19/31) These are the 10 spline gears.

Anyone on the team have any of these?

Anyone else have them that they  want to sell or loan? I'm in cheap mode! :-D
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Roseville Carl on July 19, 2012, 06:17:01 PM
Gettin closer Buddy  :?
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on July 28, 2012, 11:16:17 AM
It's been quite here on the thread, so I thought I'd post a couple of updates.

Pops (Don) finished the 2nd idler/tensioner for the blower belt.

Looks great, too!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on July 28, 2012, 11:17:45 AM
Pinkees has been busy on the bellypan.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Rex Schimmer on July 28, 2012, 03:46:56 PM
Buddy,
Just a check here, you are having Pinkees add some additional cross chassis stiffening members? right? With just  an aluminum sheet from side to side you can get a condition where it will pulsate (flop for lack of a better word) up and down and can be self destructive. The air going under the car will be at a higher velocity and therefore at a lower pressure which will pull the belly pan down.

Rex
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: dw230 on July 29, 2012, 01:08:03 AM
Darn it Rex! You gotta let these guys learn the lessons.

DW
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: SPARKY on July 29, 2012, 09:09:59 AM
Mayor  :-o   I though that was why we have "Build Diaries?   :-D
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: WOODY@DDLLC on July 29, 2012, 10:19:21 AM
Buddy, don't forget about ground clearance for the turnouts and if you happen to just miss a turnout!  :-o
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Buickguy3 on July 29, 2012, 10:38:13 AM
    Don't worry about that, it'll plow the bumps flat.
       Doug  :cheers: :cheers: :cheers:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on August 01, 2012, 06:33:21 PM
I'm home, and so is the car! Now, the thrash begins!

Rex, thanks for the heads up! Pinkees did not run stiffeners, and I can tell it will be an issue, so we'll stiffen it up.

Woody and Doug-I have no doubt that we will 'knock the tops' off of a few high spots! :-D
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on August 03, 2012, 08:53:21 AM
I got the bigger spud pulley and belt installed on the oil/water pump-let's hope the new ratio works better!

Pops did an outstanding job on the second idler, and it fits great! I'm still a little worried about the clearance at the fuel pump, but it's what we have.

Thom came over, and worked on massaging the tranny tunnel to fits the new tranny.

Today is oil and fuel plumbing day, and I'm headed out there now,
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: BoredAndStroked on August 03, 2012, 02:04:09 PM
We're all going like mad like the rest of the LSR folks . . . trying to get as much done as possible before the trip.   The rest we'll finish up while on the salt.   Anybody who reads this, please stop by and say 'Hi!' to the FlatCad crew.

We've much appreciated and relished all the support you all have given us.   Hopefully we'll have a solid running car to show for it.

Here are a couple pictures of the belly pan that Buddy just got back from Pinkees:

Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: BoredAndStroked on August 09, 2012, 08:08:44 AM
On the road to Bonneville . . .

Mark and Pat (his girl) left Cleveland on Tuesday - big 3500 diesel truck, camper, etc..   Lost a front wheel bearing in route - had to be towed in.  Luckily it was in the middle of the day - $550 and 6 hours later, he was back on the road.   PS:  He upgraded his AAA towing coverage the day before for $1.80!   Best money he ever spent :rolleyes:

Buddy and Randy left Colorado yesterday and arrived last night - only met ONE cop on the highway.   Seemed he wanted to pull Buddy over to LOOK at the FlatCad!   Can't say as I blame him - hopefully he gave Buddy a 'Get Out of a Ticket Free' card for the pleasure of his company! :D

They blew a tire outside of Rock Springs - pulled in to get another spare.  That dang Buddy is hard on tires!   Blew a tire when he towed my trailer over the Park City pass last summer . . . of course he was going about 85! :eek:

Don (Pops29) left Turlock yesterday morning - with his shop crew (sons included) still fabricating some water manifolds to ship overnight to the salt.  Seems the technical specs didn't exactly agree with our PVC plastic versions (okay, it was cheap and easy guys) . . . just the way it goes I guess.   Thanks again to Don for ALL that he and his folks do!

Tim left SoCal late last night - will drive through the night and pick me up in Salt Lake (I'm flying this year!).  

I thrashed until about 1:30 or so last night (getting the data-logger setup and packing a 'care bag' of everything I could think of).  Was a 70 lb carton - cost me my rear to check it on the plane this morning.  Got up 2 hours later to catch a flight - didn't feel like that in the least . . . lots of cobwebs in the ole' brain.    Hopefully I'll be alive by the time I reach the salt a little after 12:00 today.

My wife Amy, Chris and a friend Adam will be flying in tomorrow night and meet us on the salt on Saturday early in the AM.

There are countless others - just too tired to think about much more at the moment . . . need to catch my next flight.

Stay tuned gang - we're going to get the dang FlatCad Blown Cadillac on the salt (still plenty of little last minute stuff to do).  Hopefully we get through tech fairly easily (shouldn't be a big deal - as the car went through last year quite easily) and can be ready to run by Saturday.   Wish us luck gang and pray to Gods of the Salt to be kind to us.

Safe travels my friends!

Party in the Pit and at the Bend:  Come see us on the salt if you are at BVille - we're having a little "on the salt" party after racing on Saturday (before pit shutdown at 8:00) . . . and probably Sunday/Monday as well.  Amy and Mark have arranged an assortment of fine libations - just right for an LSR Gig.   Heck, she even has a blow-up Palm Tree.   I said 'TREE' boys, not a blow-up doll!

Also, get those moths out of your wallets and buy some T-Shirts . . . we need the money!


B&S

Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: GH on August 09, 2012, 02:03:10 PM
After 1400 miles that EXIT 4 sign is really a relief, now the excitment begins.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on August 09, 2012, 10:04:29 PM
Gary, yes it is!

We are through tech! We'll fire amd tune the engine tomorrow, and hit the salt early Saturday!

Chris, I got your message-thanks man! I sure wish you were here, as I was looking forward to meeting you!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on August 10, 2012, 10:37:18 PM
 We fird the engine off today! John Beck is coming over in the morning, to help yune thr car for the salt. We'll put the bellypan on, go to the drivers meeting, then try our maiden voyage.

Good luck, everyone!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Seldom Seen Slim on August 10, 2012, 10:39:47 PM
We went past your pit yesterday and today, but you looked pretty busy.  We'll stop by to give you an in-person view of the 2012 Salt Talks t-shirts.  Have fun - and see you tomorrow.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on August 10, 2012, 10:43:13 PM
Looking forward to it, Slim!

Post a pic here, so everyone can see what it looks like!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Freud on August 10, 2012, 11:54:54 PM
He had time to extend a cordial greeting to Dr. Goggles and myself even thought they were thrashing.

I want that girl to lay one down but she my have to wait a bit for the track to dry.

FREUD
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on August 12, 2012, 05:58:08 PM
Help! We need an Enderle 80A 0-1\2 or 0 pump, if anyone on the salt sees this and has one!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on August 13, 2012, 05:06:45 PM
First full run was 144.44 mph. We're going to see if we can get a better run in with a gear change.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Milwaukee Midget on August 13, 2012, 07:05:44 PM
I suspect the Flatcad has a bit more in it than that.  Go get 'em! :cheers:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on August 13, 2012, 07:35:59 PM
154.628 in the 2-1\4. We're headed to impound!

Conservative tune with 9lbs boost.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: GH on August 13, 2012, 07:41:16 PM
Way to go Buddy. Have a lot of fun tomarrow early in impound and on your record run.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 4-barrel Mike on August 13, 2012, 08:00:52 PM
Excellent!   :cheers:

Mike
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Milwaukee Midget on August 13, 2012, 08:32:20 PM
154.628 in the 2-1\4. We're headed to impound!

Conservative tune with 9lbs boost.


YES!  :cheers:  :cheers:  :cheers:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Cajun Kid on August 13, 2012, 09:04:53 PM
Great job, go fast in the morning...

Charles
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Geo on August 13, 2012, 10:08:44 PM
Fantastic! I've been following this from the beginning and really glad to see this outcome.  :cheers:

Go fast in the morning!

Geo
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Vergil on August 14, 2012, 12:10:06 AM
Awesome job Buddy, thumbs up from Tehachapi....
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on August 14, 2012, 10:44:35 AM
Thanks everyone!

F2.021 on the backup run! Now, we just have to clear impound!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Milwaukee Midget on August 14, 2012, 10:51:13 AM
I heard 160 + on the webcast.  That's rippin' for an antique.

Looking forward to the official results, but until then -

 :cheers:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Roseville Carl on August 14, 2012, 01:41:38 PM
Great Job Buddy and crew!! Congrats you deserve it.................
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Moxnix on August 14, 2012, 01:46:44 PM
Woot!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on August 14, 2012, 06:49:19 PM
In impong for altered class. 151 in 2, 160+ in the quarter
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: glc311 on August 14, 2012, 07:41:43 PM
Well done Buddy! Was that the return run? If not, get the record tomorrow morning!  8-)
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on August 14, 2012, 08:23:47 PM
Real quick- we have Dale in impound,for a return run in the morning. We haven't worried about our record speeds, just our 2-1\4 speeds. We have yet to run past the 2-1\4.

In the morning, we will run the full 3. I have Dale a mid-range tune, 300 more rpm's, and will add 5lbs air to the tires.

Look for 170+ mph.

Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Seldom Seen Slim on August 14, 2012, 08:38:47 PM
Hey, Buddy -- it sounds like you're doing a fine job of it with the new car.  Corngratulations from Nancy and me.  She might feel up to visiting the salt tomorrow - she's asked to go out to a restaurant tonight.  But whether or not she's out there with me in the morning -- we've got some Salt Talks shirts with your car on 'em and I think you'd like to see one, right?  If I don't find you at your pit (I looked this afternoon but you were in impound, obviously) I'll check impound and have one with me.  What size for you?
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on August 15, 2012, 12:58:30 PM
We are tearing the head off the engine to verify record in XXO\BVGCC, and XXO\BVGALT.

Top speed was 165.949. We need taller gears in it for next year.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Roseville Carl on August 15, 2012, 06:11:36 PM
165.949      Wow Congrats Buddy on a great time first time out, man thats an accomplishment in its own right!!!!!!! Great job!!!!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Jon on August 15, 2012, 07:50:25 PM
Congratulations to you and the rest of the crew Buddy.  :cheers:

jon
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: BoredAndStroked on August 17, 2012, 11:57:57 AM
Sure was a fantastic meet!   What a crew the FlatCad team is fortunate to have and also for the many supporters that stopped by, wished us well, helped us with ideas on our fuel starvation issues, etc..   I wished I could go right back out, do it again and go faster than 165.9 -- as this car/engine definitely has the potential to do much more.   With the right final gear ratio . . .  will be an even funner ride!

Thanks to the whole LR community for your support, help and interest . . . it means a LOT to the FlatCad crew!

B&S
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Kiwi Paul on August 17, 2012, 12:08:03 PM
Great to talk to you guys. the inside of that engine was perfect. Even had a dark Valve shadow from being run fat....Five Speed Required!!..... :cheers:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: hotrod on August 17, 2012, 12:34:30 PM
Great job Buddy, it was great to finally meet you and the crew even though we only live about 50 miles from each other.

Here is a shot of the crew test firing the engine after replacing blown freeze plugs and trying to sort the fuel delivery problem.

Too bad I had to head home shortly after taking some pictures, it would have been nice to follow you down to the starting line for your runs.

Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: SPARKY on August 17, 2012, 02:12:57 PM
Buddy what was the final gear you had in the car?
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: BoredAndStroked on August 17, 2012, 02:16:09 PM
Final gear was a 2.40 - with a 1 to 1 trans ratio and 28" tires.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 4-barrel Mike on August 17, 2012, 02:20:08 PM
4800rpm?

Well done, btw.  This has been a really fun thread to follow.

 :cheers:

Mike
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on August 17, 2012, 02:48:55 PM
5600 rpm on the last run, against the rev limiter. The last 2 runs, with a higher tune, ran less time in the 2-1/4 than I did on a lower tune.

The first run Dale did, I thought I smelled clutch, bo nobody else did. I suspect we had clutch slippage at the end.

More later, when I get things unpacked, and have arrived in Pennsylvania.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Milwaukee Midget on August 17, 2012, 03:11:06 PM

The first run Dale did, I thought I smelled clutch, bo nobody else did. I suspect we had clutch slippage at the end.


Sure it wasn't that "new component" smell?

Congratulations on a very successful Speedweek.

 :cheers:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on August 17, 2012, 05:03:13 PM
First, I want to thank EVERYONE, for the huge amount of support, on the salt and off. It's been an amazing journey!

Ok, help me figure out what was going on here.

We had a strict plan we were sticking to-mild tune, low revs, 2-1/4 times only, to see what the engine and car would do. We only made one 3 mile run, and that was Dale's last run, 165.949 mph in the 3.

We lost the first 2 days due to a fuel problem-the car would pull first, them run out of gas halfway through second. Believe me-if you have a high volumn pump, and a small tank, take the foam out! There was still plenty of gas in the tank, but the gas wouldn't flow through the foam fast enough for the pump!

In the first pic, is the times for our comp coupe run. The 154+ in the 1/4 was a fat tune, under-driven making 8.5-9lbs boost, and 2.55 gears in the car, bumping the rev limiter at 5200. The 162+ backup run was the same tune, with 2.40 gears, bumping 5300 rpms.

The second pic is the altered runs. The first run was a hotter tune, 1-1 on the blower, about 11psi boost, and 2.40 gears. I actually ran faster with the lower tune, but I had the bellypan.I thought I smelled brakes burning after Dale's run, but nobody else did. I realize now, that it may have been the clutch

The second run was identicle to the first, only I put in 5600 rpm, and we ran to the 3. Well, almost-I think we probably hit about 170mph, as the in car video shows Dale shutting down just short of the 3 mile marker.

So, what's the answer? I'm thinking a 5 speed, with about a .82 overdrive. When we go to the hot tunes, this baby will run!


Next year, 190mph or bust. Remember, you heard it here first! :evil:

Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Tman on August 17, 2012, 06:47:19 PM
Good job, you guys earned it. :cheers:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: SPARKY on August 17, 2012, 10:11:06 PM
Or a GV OD  Caddy rear would give you 2.28 gears or the 10 bold will get you 2.14 gears  1.96 FDR might be hard to pull but you go back to 2.56 and give you a 2.09

I would keep the direct and go to the 2.14 gears
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on August 17, 2012, 10:28:05 PM
I've been offered a 3 speed, with GV overdrive, good for a 1000Hp. I'm thinking this would be the way to go.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Kiwi Paul on August 18, 2012, 12:00:08 AM
Buddy, Don`t forget to choose a combination that you can adjust on. if a quickchange and a bunch of spur gears aren`t on the menu, stick to your 9inch and round up a few gearsets to take. As for the 3 Speed and Gear Vendors idea, well, I hope Dale can learn the shifting system. I still like the idea of a Tremec and a batch of ratios in the back....
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Freud on August 18, 2012, 12:54:15 AM
Buddy I wish the Target550 group could have provided you more help. Without coming to

your pits Marlo didn't have much to go on. We were up to our scrotum in alligators about

the time you came by.

I failed to get over the remaining days but I love your Caddy.

I'll lurk and listen for your next step.  You did great for a new outfit.

FREUD
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: RichFox on August 18, 2012, 09:43:08 AM
Buddy, Don`t forget to choose a combination that you can adjust on. if a quickchange and a bunch of spur gears aren`t on the menu, stick to your 9inch and round up a few gearsets to take. As for the 3 Speed and Gear Vendors idea, well, I hope Dale can learn the shifting system. I still like the idea of a Tremec and a batch of ratios in the back....
I believe it shifts like any other three speed which is the same as my truck around town where I don't use granny low or overdrive 5th. And then you flip a switch for Odrive. Millions built and people learned to use them. Why do you think Dale will have a problem?
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Tman on August 18, 2012, 09:55:39 AM
I think that was a joke Rich. :-D
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: SPARKY on August 18, 2012, 10:06:35 AM
I have run a AT 400/GV and no torque converter and I have run a PG/GV with no converter---
In a low HP high AERO DRAG combo  if you want to be combetitive you must minimise your total drag---you have worked hard on the body AERO

An area you have left is drivetrain effieiency--at Bonneville ---IMO  the cheapest-MOST power to the ground comes from not using 9" -4.5% fords
 and QC -6.5%  gear change with tires ---but especially trannys you can change the gear sets easily!!! like Libertys and such you can rally "Tune for the Eng/trap speeds you want

PS: If I could get my buddies with the red truck on board--(missed a hat by .5 MPH) they run a QC with a 2.74--real clsoe to a GM 2.73 which would put over 6% or in their case 65 HP more TE to the salt---think that might cover .5 mph
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on August 18, 2012, 11:56:24 AM
Thanks everyone!

Kiwi Paul, I have a Halibrand Camp QC in the car, not a 9 inch, so changing gears is easy. I thought we had a gearing problem, but after running the numbers again, I realize we had to have had clutch slippage.

Sparky, I have a Liberty tranny, and will be talking to them Monday about gear selection, to decide if I want to stay with it. I think a rear end with about 2.35 gears will get us to where we want to be.

Suggestions?
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: SPARKY on August 18, 2012, 12:54:23 PM
with GMs you can do 2.41 or 2.28s  I would go with the 2.28s and continue to play with the liberty---let me have your dyno sheets and I will build you a TE chart that will show you what speed and what you are putting to the ground at each rpm on the dyno sheet!  You then will be able to play with gear selection!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on August 18, 2012, 06:25:13 PM
Thanks Sparky-I sent you the info.

Did anyone happen to get a pic of the FlatCad with the chute open? I really wanted one, but we missed it!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: panic on August 18, 2012, 06:47:57 PM
Your HP curve will determine how much ratio spread you can tolerate on the shift into high gear.
Very peaky? 10-15% drop
Flat as Kansas? 25% drop
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: RichFox on August 18, 2012, 08:51:00 PM
The thing about the Liberty or the transmission in my Dodge is that when they are in fifth or sixth gear they are running through the cluster. And that has more drag than direct 3rd or 4th. The Ford top loader with the gear vendors OD runs through a planetary gear set for the Over drive. The transmission itself is in high and is running direct. So the question becomes which has the least drag and power loss? I don't know. I think it's the planetary gears. But I have nothing solid to back that up. Who has some real numbers they are willing to share? We could call Gear Vendors, but I think I know what they will say.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Pete1 on August 18, 2012, 09:42:47 PM
The thing about the Liberty or the transmission in my Dodge is that when they are in fifth or sixth gear they are running through the cluster. And that has more drag than direct 3rd or 4th. The Ford top loader with the gear vendors OD runs through a planetary gear set for the Over drive. The transmission itself is in high and is running direct. So the question becomes which has the least drag and power loss? I don't know. I think it's the planetary gears. But I have nothing solid to back that up. Who has some real numbers they are willing to share? We could call Gear Vendors, but I think I know what they will say.

You lose 5 to 8% every time you go through a gear set..Slightly less if they are not driving.
In a planetary transmission like a Lenco, when you are in direct, no gears are moving. It is like a straight shaft going through with parasitic drag coming only from oil friction and loss in the bearings.
In a Bonneville car it is more efficient to NOT use an overdrive. The cheapest way to go would be have a push car that could push the race car
up to 100 mph.(Like the Kenz & Leslie 777) The race car could get along with only a clutch and no transmission then. The most expensive way to go is probably a Lenco.
Oh, I forgot, there is another way, have way more hp than you can possibily get to the ground and then you can afford to lose some in the drive train.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: RichFox on August 18, 2012, 10:10:40 PM
I understand that. However my question has to do with an overdrive transmission. In direct i am aware the Gear venders unit is about the same as the Ford trans would be without it. But buddy want's an overdrive of some sort, between the flywheel and the rear end. So we are pretty much limited to a standard transmission in which top gear is an overdrive or an add on overdrive such as the Gear Vendors unit. The question is which is more efficient.   
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: SPARKY on August 18, 2012, 10:51:02 PM
the freewheel feature is nice---saves tires and shorts if you blow and eng. saves auto trannies when you push off the line.

Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Jack Gifford on August 19, 2012, 01:29:46 AM
... I have a Halibrand Camp QC in the car...
Umm... then why are you looking for a different ring/pinion set? What am I missing here? :?
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: John Burk on August 19, 2012, 01:53:43 AM
The efficiency of a rear is easy to calculate if you know the heat gain and the specific heat and weight of the parts . With 600 hp a rear that gains 30 deg / minute is loosing 1.3% . That's if the rear had 15# of aluminum , 65# of steel & 3# of oil and no air cooling .
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: desotoman on August 19, 2012, 01:15:21 PM
Buddy,

It was nice to finally meet you. The car looks great, and congratulations on the records. I did not hang around too long since you had just lost a freeze plug and everyone was busy. Your car will go much faster after the bugs are sorted out.

Dale, it was great to see you again, I think it has been at least 25 years since I last saw you when you lived in Lomita. You did a great job on building the motor, keep up the good work.

I hope you guys make it to El Mirage this year, it would be great to see you again.

Tom G.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Jack Gifford on August 20, 2012, 02:19:40 AM
Oops- I see that you only said that a "taller gear" is needed, and then were asking about overdrives, not a different ring/pinion ratio. I still have the same question though- why can't you simply use the appropriate quickchange gearset?
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Jack Gifford on August 20, 2012, 02:22:59 AM
... easy...
... and no air cooling...
So you'd need to do this on a chassis dyno- to simultaneously run the rear under load while attempting to not lose heat to the surrounding air. "Easy" is subject to different interpretations, I guess. Even then, the result will only be a ballpark figure, since there WILL BE heat conducted away (axles, housings, etc.) and temperatures will vary widely throughout the mass that sees a temperature increase.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Peter Jack on August 20, 2012, 02:33:02 AM
Jack, different rear ends have different degrees of efficiency. A quick change is particularly bad because of the extra gears, each of which causes some loss. Ford 9" rears tend to be poor because of the large offset of the pinion in relation to the centerline of the crown gear. This causes excess scrubbing.

As we all know quick change rear ends make ratio changes rather simple and the Ford 9" is probably the next easiest to change ratios especially if full floating axles are used. There's probably no reason to go to one of the more efficient rear ends until you're scratching for the last couple of mph to set a record. At that time it becomes more than worthwhile to gain every efficiency you can and at the same time you probably know very close what ratio you require.

Pete
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Jack Gifford on August 20, 2012, 02:38:47 AM
Pete- I'm not sure you understood my post (about FlatCad's QC), since I'm already aware of everything you just said.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: John Burk on August 20, 2012, 09:49:21 AM
Jack questioned the accuracy of using rear end temp to gauge lost hp . The point is rears are more efficient than the 7% power loss we often hear . A good bit of lost energy is oil churning which is not related to power transmitted and pretty much constant for any rear . The drag in question is probably under 1% .

The temp to hp formula is :
(lb of steel x .11) + (lb of aluminum x .22) + (lb of oil x .5) x heat gain (deg F) / minute = drag in BTU
Drag in BTU divided by 42.4 = drag in hp
 

Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Jack Gifford on August 21, 2012, 01:51:30 AM
Another 'oops': please disregard my recent posts that mentioned FlatCad's ring/pinion set. I had to read all of his posts back to July 8th to discover that his term "rear end gears" is in reference to the overall rearend ratio (2.4, 2.55, etc.), not to the ring/pinion gears. Too bad I didn't realize this back in July, as I very well could have loaned him some QC gearsets that he was looking for.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Kiwi Paul on August 22, 2012, 02:06:33 AM
Yes, Fellas, I was kidding about the Overdrive shift problems....I honestly don`t see any real problems with whichever route you take. That is one very Impressive Flathead..... :-D :-D :-D
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: zenndog on August 22, 2012, 02:19:35 AM
 :cheers: :cheers: :cheers: :cheers: :cheers: :cheers: :cheers:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: jdincau on August 22, 2012, 10:47:41 AM
According to these sources a Hypoid (most popular third members) gear set is 92 to 96 percent efficient at power transmission. A spiral bevel (V-8 quick change) gear set and a single spur gear set are both 99 percent efficient. That makes a V-8 quick change 98.01 percent efficient . Tell me again why I should dump my quick change.
http://www.zakgear.com/Hypoid_worm.html
http://www.roymech.co.uk/Useful_Tables/Drive/Gear_Efficiency.html
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Rex Schimmer on August 22, 2012, 03:15:38 PM
Interesting info jdincau, I am with you hard to beat a good QC. A note on the practical side, ever follow a rear wheel drive in the rain and notice that the diff housing is always dry?? Think it is because it is hot?

Rex
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: jimmy six on August 22, 2012, 03:33:24 PM
I'm not a believer in OD's (but still have one in the roadster) and have 5 gear sets and 4 diameter of tires to make the changes and that does not include the OD.

The OD I use is from the 4 speed trans I bought from Tex which is now G-Force.  It was a T101A and I think it's a GF4A now. I use the 3rd gear position for a .96 OD. There are countless combinations and I really don't care about a low 1st gear. I currently have a 1.61, 1.23, 1.00, & .96 for gears. Most OD's have too much of a change because they built for street use. The only time we used OD at Bonneville we slowed .5 mph and the tach never showed to pick back up and that's with a .96.

OD is just incase the tail wind is good.... :lol:...JD
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on August 23, 2012, 03:01:23 PM
Lots of ideas and opinions for me to sort through!

While I sort through them, here is the in car video of Dale's qualifying run in XXO/BVGALT.

http://youtu.be/lO8Poof9kL8
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: jpm49c on August 23, 2012, 03:20:15 PM
Very Nice!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Tman on August 23, 2012, 03:27:51 PM
According to these sources a Hypoid (most popular third members) gear set is 92 to 96 percent efficient at power transmission. A spiral bevel (V-8 quick change) gear set and a single spur gear set are both 99 percent efficient. That makes a V-8 quick change 98.01 percent efficient . Tell me again why I should dump my quick change.
http://www.zakgear.com/Hypoid_worm.html
http://www.roymech.co.uk/Useful_Tables/Drive/Gear_Efficiency.html


Makes me feel better about my QC.....Sparky was starting to into my head with all his GM talk!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on August 23, 2012, 10:48:23 PM
Dales record verification run in XXO/BVGALT- 165.949
 
http://youtu.be/IaikdUEGO4s
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: SPARKY on August 24, 2012, 12:56:56 AM
Buddy the V-8 quick change has an early Ford Bevel gear at its heart !  which is yours based On-- Dana??
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on August 24, 2012, 08:33:31 AM
Sparky, according to Halibrand, the Champ is based on 38-52 3/4 and 1 ton truck Ford rear ends, and is a spiral beveled hypoid design.

I'm guessing it's the least efficient design?
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on August 24, 2012, 06:49:30 PM
This is how the new QUEST 200 begins:


I shipped the spare good block to Pops29 today, and the cam blank to Dema Elgin.

Pops and Dale will start a new main girdle design, with the plans of being able
to handle more boost and higher RPM's.

Dema will grind a roller cam-I'd hate to lose a lobe or mushroom base off of our
current cam!

John K is starting his plans for aero-the Flatcad will look drastically
different next year in comp coupe.

Randy and I will get started on suspension-front axle and possibly a new
rear diff, tranny,  dry sumping the tranny and diff, body work and paint.

I've been accused of being loud, arrogant, and a braggart. Well, that may be so, but I'm also known for backing my words. I can promise you this: we are going to achieve 200 mph with this engine at some point, if it's humanly possible!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Tman on August 24, 2012, 07:13:00 PM
Like my dad always says "It ain't braggin if you can do it!" And so far my friend. every check you have written has cleared! :cheers:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Captthundarr on August 24, 2012, 07:17:48 PM
Based on what ya'll have done, this ought to be real good. :cheers:
Frank
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Jack Gifford on August 25, 2012, 01:06:52 AM
Tell me your reasoning for dry-sumping the trans and rearend.

Congrats on your SpeedWeek efforts!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: DND on August 25, 2012, 02:51:18 AM
Hi 38

I was wondering how fast a 37'-38' Chevy coupe has ever gone on the salt, would you happen to know.

Thanks, Don
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on August 25, 2012, 10:53:26 AM
Thamks everyone!

Jack, for the same reason the 'big boys' do it- to keep from losing HP due to the gears sloshing through the oil.

Don, I'm not sure. Out of the three 37/38's currently running, we are the fastest, but the others run front fenders, in other classes. I do know both of the other cars have spun-it's hard to get any aero when you have to run those pontoons for front fenders!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: WOODY@DDLLC on August 25, 2012, 11:06:54 AM
Buddy, great seeing you, Dale and the crew at Speed Week! Good on all ya'all! {Plural for ya'all!}  :cheers: :cheers:

I thought about you when I saw this on a camper later - no one around so ???  :?
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Roseville Carl on August 26, 2012, 01:47:43 PM
Woody thats great! Buddy should get him one of those!!!
 :cheers: :-D
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: desotoman on August 26, 2012, 02:19:48 PM
Final gear was a 2.40 - with a 1 to 1 trans ratio and 28" tires.

5600 rpm on the last run, against the rev limiter. The last 2 runs, with a higher tune, ran less time in the 2-1/4 than I did on a lower tune.

The first run Dale did, I thought I smelled clutch, bo nobody else did. I suspect we had clutch slippage at the end.

More later, when I get things unpacked, and have arrived in Pennsylvania.

Without tire or clutch slip I calculate around 194 mph for that combination. So something was slipping. Keep us posted.

Tom G.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on August 28, 2012, 07:40:13 AM
Buddy, great seeing you, Dale and the crew at Speed Week! Good on all ya'all! {Plural for ya'all!}  :cheers: :cheers:

I thought about you when I saw this on a camper later - no one around so ???  :?

Woody, it was great seeing you too!

Will those 'wings' help us with aero??!! :wink:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on September 02, 2012, 03:20:49 PM
Well, it's time to start thinking about next year-tearing the engine down for a rebuild, and reworking the car itself.
 
....but, the Ohio Mile is only about an hour from Dale's house! We're going to go and see what we can do on asphalt, since we will be so close anyway!
 
Dale's XXO/BVGALT class is open, and the record in XXO/BVGCC is 130.756 MPH, set by 'Scrap Iron', owned by Bobby Minis.
 
Wish us luck, or come by and see us!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Jack Gifford on September 03, 2012, 01:08:20 AM
Is that the Buick ('38?) that I saw at Maxton in 2011? If that's the one, I liked the headers- the configuration resembled a pair of driver's-side V8 headers! And sounded bitchin' (wish I knew how to attach an audio recording to a post)...
Is that photo from Wilmington?
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on September 07, 2012, 06:53:17 PM
Jack, I believe that photo is from Maxton- It's on the ECTA site.

Even though we're getting ready for the Ohio miler, work continues:

Bill with BCChopit is sending us a new straight 'setup' axle, and sent this pic of the ends he is fabbing.

Once we know exactly what we need,the setup axle will go back to him, and he'll build the final axle.

Thanks Bill!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on September 08, 2012, 09:28:10 AM
Bill Carlson has the axle ends trimmed and everything is ready to ship!

I have to give Bill props-this guy is great! When he found out what we wanted the axle for, he offered to send us this setup axle, so that we could figure out exactly what we need. Not many guys go the extra distance for a customer anymore, but Bill sure does!

Do me a favor, and give Bill a shout if you need any axle work! http://waccustoms.com or http://bcchopit.com

Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: DND on September 08, 2012, 04:48:33 PM
 Can you give your welder friend a pat on the back for me, that is some mighty fine looking tig work on your axle parts.

Don
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on September 16, 2012, 03:50:17 PM
From www.flatcadracing.org :

Chasing record speeds with a vintage car is similar to nature, in the fact that there is a never ending metamorphosis happening. Much the same as a caterpillar morphs into a butterfly, a classic car changes into a sculpted steel contraption that looks as if it belongs in the movie 'Transformers'.

It's really an evil necessity, because pure horsepower only goes so far, then racers are forced to make aero changes due to drag, lift, etc. Going fast may not look as cool as going slow, but going fast IS cool!

Love it or hate it, this is a rendition close in appearance, to what the FlatCad will likely look like in our quest for 200 mph. Aero speed mods will be held on with dzus fasteners, so that they can be removed in the /BVGALT class.



Photo-shopped by Steve Shapiro
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Captthundarr on September 16, 2012, 08:49:56 PM
Wow thats almost butt fugly but fast ain't gotta be purdy. :cheers:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Freud on September 16, 2012, 09:22:55 PM
Captain, that's high praise coming from You.

You certainly favor your friends.

FREUD
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Geo on September 16, 2012, 10:44:20 PM
Wow! That 200 mph design is way cool!  :cheers: Just when I think you have reached a limit you jump up to another level.  Looking forward to the continued mods.

Geo
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on September 17, 2012, 07:59:37 AM
Thanks for all the comments!
 
One thing's for sure- going 200 in a brick/pig sure ain't gonna look 'pretty'!
 :-D
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Captthundarr on September 17, 2012, 08:57:10 AM
Captain, that's high praise coming from You.

You certainly favor your friends.

FREUD

Not being critical, the only purty thing about our ride is the driver.... my wife... :cheers: :cheers:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: BoredAndStroked on September 17, 2012, 09:19:25 AM
Heck . . . the car has been sort of a 'looker' in the past - but none of that matters if you want to go fast!   :-o
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: wheelrdealer on September 17, 2012, 09:54:48 PM
38

Now that is radical. It reminds me of those high speed locomotive designs from the 40's.

Bill
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Freud on September 17, 2012, 10:34:27 PM
wheelerdealer were You riding the rails in the 40's?

You made an informed comment.

FREUD
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Jack Gifford on September 18, 2012, 01:54:20 AM
Do you s'pose you'll go to flush [window]glass?
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: wheelrdealer on September 18, 2012, 08:31:33 AM
Freud:

No, I was not riding the rails I am a boomer. But my Dad was as he shipped off to WW II.
I read an article on the locomotive style and aero design in that era.

38's go a cool design , can't wait to check it out.

Bill
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Milwaukee Midget on September 18, 2012, 11:37:58 AM
The front looks like a 1/3 scale model of "The Phoenix" with a hood scoop.

It's not ugly at all - it's frickin' cool!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Rex Schimmer on September 19, 2012, 01:47:38 PM
Buddy,
Really like your new concept, a narrower front with good flow down the sides is a great way to go. Looks great. You might also consider doing something similar to the front of the rear fender area, where the salt is stuck on your car in the picture. I am not sure of the rules but if you could also add some additional body in this area to reduce the step from the body to the rear fender I would think it would help in your 200 mph quest.

Rex
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on September 23, 2012, 09:39:57 AM
Thanks Everyone!

Rex, we'll look at the rear fenderwells, and see what we can do. We have to be careful, because we still want to bounce between classes- the narrow front end in comp coupe will mean an axle change back to ALT class. All body mods will be Dzus fastened, for a quick and easy removal.

This time next week we'll be in Wilmington, OH, for the Ohio mile!
 
Hotels are lined up, entry fee paid- we're good to go! Goal is to hit 150mph- this would make me feel good about the 160mph we need at El Mirage!
 
I'm going to sit this one out, driving wise, and crew on the car.. Along with Dale, we're going to break Randy, and Danny out driving. Everyone puts sooo much work into this car, it's time for them to have some fun too!
 
Stop out and see us!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: SPARKY on September 23, 2012, 09:45:45 AM
 :cheers:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Captthundarr on September 23, 2012, 10:50:52 AM
Wish we could make it. I'd love to stop by your pit and check your the ride. Good luck on the 150. :cheers:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on September 23, 2012, 11:06:18 AM
Captain, We'll meet at one of these events! :cheers:


I just received an email from a gentleman, that I invited to hang out with us at the Ohio Mile. This is what it said, in part:

"Hello, I appreciate the invite to hang out with you guys, but I see on the HAMB that you are not driving and it will be more of a fun thing rather than a drop dead assault on setting a record. With that in mind I can't justify taking a weekend off from my shop."

I feel the need to clarify this. Dale is still driving the same class he ran on the salt, the ALT class. He'll drive first, as he knows the engine and car, and should be able to detect if we have issues.

Randy has the only drag racing experience out of us. This is going to be a mile long drag race, so it's a natural place for him to start.

Danny was a Pro off road quad and motorcycle rider. He's very competitive, and has great instincts- he'll take over for me in comp coupe.

In truth, we took it easy on the salt, because we were still learning the car and engine, and we needed to get a good baseline to build from.My goal for the Ohio Mile is 150mph, so the car will be tuned hot, and we will be running hard.

I apologize to all of the ECTA members if I made it sound like we were taking this meet lightly-That's not the case! We're going to have fun, but we'll be balls to the wall!  
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: SPARKY on September 23, 2012, 12:12:15 PM
OO    :-o  Is that because you had to stomp on the brakes so hard because you were going so fast after the run!!! :evil:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Captthundarr on September 23, 2012, 12:59:43 PM
Flattie, Aint no thing to appologize for. Many folks run The Ohio Mile for shakedowns or testing for the salt or the dirt. It is quite costly for us to build then drag our junk 3/4 the way across country just to find out that somethiing wasn't quite right.

Frank


Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: straight8 on September 25, 2012, 03:48:22 PM
Buddy and crew, I've followed your build since the beginning mostly because I own the '38 Buick that you mentioned as holding an ECTA record. You have done a hell of a job getting that brick to run that hard. The '38 has the original straight 8 in it w/ a blower. Fastest it ever ran was @ B'ville while it was devouring itself. No back up run no record. Hope you continue to do well. Bobby Minis
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: BoredAndStroked on October 01, 2012, 10:23:37 AM
We ran 138 in BVGALT - with only 4 cylinders in 3rd and 4th  (boost and valve float squished some plug gaps).   The car was geared for 140, so we didn't feel too bad about 138.6.   We changed gears, put more fuel into the tune and swapped over to BVGCC and threw the belly pan on for Randy and Danny to give it a try (first time in the car).  Tune was really fat for Randy - couldn't pull the bigger gears.   Changed the tune and Danny ran a 152 at 6100 RPM in 3rd!  He briefly shifted into 4th, but it didn't have time to pull it . . . so back to 3rd, ran it to 6100 and got off it right before the traps.

We learned a lot more about fuel injector tuning -- the data logger convinced me that the motor was really rich on Randy's run (hard to tell by the plugs with the really hot mag).   When Randy ran, the EGTs only got to about 1200 (way cool) and it was popping at higher RPMs (the sound of fuel not being burnt).  We switched the pill from a 95 back to a 100 and that really cleaned things up (before Danny's run).  The EGTs on Danny's run were about 1375 or so - which is about where we like them to be with our port and header configuration (where the EGT bung is in relation to the valve).

All in all a fun meet with a lot of great friends/family of the FlatCad crew and our newly found friends in the ECTA world.  We all had a blast, accomplished what we set out to do and packed it up for the winter tear down.   Will be very interesting to see the inside of the motor in the next couple weeks.  I'm curious as hell as to how all the internals have held up - we pushed this engine quite hard yesterday.

Our Guesses on HP:   On the dyno we made about 530 HP or so at 5200 RPM,  575 at 5500 with 14 lbs boost -- we ran 16 - 17 lbs of boost at Wilmington, at 6100 RPM.  Danny said it was a whole different engine above 5500 - said it pulled really, really hard and set him back in the seat.   Buddy and I guess that we were easily over 600 HP . . how far, who knows.   The real question is what can this engine design/build take . . . so far it has been a really amazing beast and has surpassed our expectations (and surprised a few along the way).   We're working with a total unknown entity -- trying to learn along the way and not hurt it . . . so far it has 'played nice' with us.

Thanks to the LSR community for all your help . . . has been an amazing race year for all of the FlatCad Crew!

Time for the winter tear down and inspection . . . will keep you all posted.

B&S
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on October 02, 2012, 06:48:28 PM
Buddy and crew, I've followed your build since the beginning mostly because I own the '38 Buick that you mentioned as holding an ECTA record. You have done a hell of a job getting that brick to run that hard. The '38 has the original straight 8 in it w/ a blower. Fastest it ever ran was @ B'ville while it was devouring itself. No back up run no record. Hope you continue to do well. Bobby Minis

Bobby, Thank you for the kind words! Hopefully, I'll meet you at Bonneville, or the Ohio Mile next year! :cheers:


What a year!

Bonneville was great, even if the car was set up too light.

The Ohio Mile was a big learning experience, engine wise. We had been taking little steps all year long, and Sunday I decided to roll the dice. Much to Dale's consternation, I decided to run the engine HARD, with a max tune on. 16lbs boost, shut the rev limiter off, and told Danny to drive the effing car to 6000. Dale was very hesitant, but I said something like "Eff it- we built it to race, not take pictures of!"

Unfortunately, I thought we could pull the 2.96 gears in the mile, and have a speed of 169. Wrong-the track is just too short! I should have left the 3:08's in there. Danny drove the wheels off of the car, and crossed the finish line in 3rd gear, at 152.592 mph, and 6100 rpms.

The engine sounded like an angry herd of water buffalo! So, we know the engine has a LOT of potential left, if we make the right tweaks to it this winter.

....and Dale, we won't run it like that again!




..........Unless we have to, to make 200mph!
 :evil: :evil: :-D
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: GH on October 04, 2012, 03:36:06 PM
I went to Maxton for the shake down run before Bonneville with the #787 Studebaker. Went 179 with a powerglide and didn't use the Gearvendors OD, was going pretty fast when I made the right hand turn at the end, no front brakes, rear drum brakes and a Bonneville chute, boy that was fun!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: WOODY@DDLLC on October 04, 2012, 06:36:37 PM

Unfortunately, I thought we could pull the 2.96 gears in the mile, and have a speed of 169. Wrong-the track is just too short! I should have left the 3:08's in there. Danny drove the wheels off of the car, and crossed the finish line in 3rd gear, at 152.592 mph, and 6100 rpms.

The engine sounded like an angry herd of water buffalo! So, we know the engine has a LOT of potential left, if we make the right tweaks to it this winter.

[/quote]

Buddy, Dale was grinning when the snotty bitch went by!  :-D
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: gearheadeh on October 04, 2012, 07:08:07 PM


The engine sounded like an angry herd of water buffalo! So, we know the engine has a LOT of potential left, if we make the right tweaks to it this winter.


Buddy, Dale was grinning when the snotty bitch went by!  :-D
[/quote]

Love the quote's and the pic is a keeper too!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on October 07, 2012, 11:09:57 AM
Thanks guys!

Woody, it was great catching up with you again! Thanks for the awesome pic! :cheers:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Roseville Carl on October 12, 2012, 05:42:42 PM
Great goin guys for all the hard work this year!!!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: BoredAndStroked on October 12, 2012, 06:20:54 PM
Thanks Carl . . . seems all of us fellow 'flathead gangs' are having some fun now aren't we!   We have an amazing community of family, friends and fans - we're very fortunate to have met all of you and to have the chance to make and share some great experiences!   In the end, life is about creating memories . . . and we're doing everything we can to make some good ones.

I'm tearing the engine apart this weekend . . . I hope that all the 'surprises' are good ones!   I'll post pictures when I have them . . .

B&S
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: BoredAndStroked on October 13, 2012, 12:28:12 PM
Picked up a set of race car corner scales – from my circle track friends.   

Here is the setup:

1.   Radiator Tank – Filled about 1” above pressure caps:  Water circulated through the engine
2.   Intercooler Tank – filled to 5” below the top:  Water circulated through the intercooler
3.   Oil:  Running levels (will measure later).
4.   Rear Weight Added (like the lead):  325 pounds
5.   Fuel Tank:  ½ full
6.   No driver
 
There are two sets of weights - one without and one with the driver.

The second set of images/numbers are with a grossly over-developed, muscular and athletic driver . . . that would be ME!   I have about
15 – 20  lbs of clothes and gear (figure that was pretty close).  I weight about 210 lbs.

Looks like we have about a 40 front / 60 rear weight bias.   I would not have guessed that we had that much weight in the rear – but we do.   

I’ve been doing a bit of reading – seems that most folks DO NOT like to add weight behind the rear axle – very bad place to have it in a spin situation (acts like a pendulum).   

We probably should move the weight to just ahead of the axle and as down low as possible.   Maybe some thick steel plates?   Anyway, thought I’d send this your way.

Time to start taking things apart!

Would appreciate any opinions/perspectives on our weight bias numbers . . . 

Thanks!

B&S
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on October 13, 2012, 12:51:06 PM
Wow, the car weighs about 600 lbs more than I thought!
 
The car is balanced very well though, considering we never had it on scales! Randy and I will bring the total weight to about 5000 lbs for next year. We may look at moving the rear ballast, if I can find some more used lead. I plan on adding some lead filled 'cross members' on both sides of the axle, and may even fill the axle cross member brace- this would move the weight directly over the rear axle.

What do you guys think?
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: RichFox on October 13, 2012, 01:04:49 PM
I don't understand why you want to add weight.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on October 13, 2012, 01:24:48 PM
Rich, we still have wheel spin over 160 mph- we only gained 3 mph between the 1/4 and the 3 mile, but gained 12 mph between the 2 and the 2-1/4.


The other reason is the loooong area under the trunk. These cars like to get light at speed, so we need to address the bellypan some more. Both of the other 37/38 coupes that are running have spun due to this, and at slower speeds than we are running.


Makes me think weight is our friend! :-D
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: pops29 on October 16, 2012, 11:05:02 AM
Here is some pics of the flow test chambers for the flatcad being cut on our CNC. Buddy will be having flow bench work done in a few weeks .

Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: pops29 on October 16, 2012, 11:07:21 AM
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Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: pops29 on October 16, 2012, 11:09:48 AM
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Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: pops29 on October 16, 2012, 11:10:27 AM
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Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: BoredAndStroked on October 16, 2012, 11:24:41 AM
Good stuff Don!  I'm really looking forward to testing some new designs and seeing how flow and compression are influenced.   

Tear Down Update:

We pulled the engine last night and will be taking the long-block apart this evening.   Amy is now an official 'FlatCad Engine Crew' member - she worked with me to pull the engine, pull the tranny\bell-housing\clutch and manned both the impact wrench and air-wrench to remove various nuts and bolts.  Don't put anything with a 'gun handle' in her hand - she'll go to town!   Is always nice to have somebody helping with these projects - and she wants to learn more . . . which is way cool by me.

Attached is the LAST picture of this engine, in the car in it's 2012 state . . . fair-well good friend!   May we see you even stronger on the other side!  :-D

Also, you'll see Amy - working away with me on the engine lift . . . dang, she is cute!

Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: jl222 on October 16, 2012, 11:40:51 AM
Wow, the car weighs about 600 lbs more than I thought!
 
The car is balanced very well though, considering we never had it on scales! Randy and I will bring the total weight to about 5000 lbs for next year. We may look at moving the rear ballast, if I can find some more used lead. I plan on adding some lead filled 'cross members' on both sides of the axle, and may even fill the axle cross member brace- this would move the weight directly over the rear axle.

What do you guys think?


  Are you allowed a spoiler in your class? It would help on getting light and add downforce without adding weight.

   Formula I cars run 60% [+or - rear weight and go around corners. If you move your weight forward your traction will be less.

                JL222
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on October 16, 2012, 12:33:39 PM
Don, That looks great! I can't wait to get out there next week, and get them on the flow bench!


Dale, Amy sure beats those ugly mugs you usually have helping you!


I'm not uncomfortable with our weight, or weight distribution- the car handled like it was on a string, up to 166 mph. My goal is to try and bump the /ALT record into the 180 mph range, and use the runs as a test and tune for the comp coupe class.

We had some wheel slip this year, so I am going to add weight for the altered class. My plan is to add it just in front of the axle, for more weight on the wheels, and a slight shift of the weight towards the front of the car-very slight.

Comp coupe is a different story. We'll take the car to the wind tunnel, and try and address as many issues as we can. I'm hoping some tweaking of the bellypan will help with the lift. We'll get the car as sleek as possible, hopefully get rid of the lift and get some downforce, then start adding/dropping weight as needed.

200 mph won't be easy, but I think it's FAR from impossible!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on October 16, 2012, 03:22:11 PM
I've spent a lot of time this past week exploring transmission options. The main thing everyone of the tranny guys have told me is that I should stay away from overdrive- no surprise, the same thing was said on this board!
 
Currently, I have the pro-shifted Liberty top loader, with 2.78, 1.93, 1.36, 1.0 gearing.

I can get the tranny re-geared and freshened up, for about $700.That would be with 2.32, 1.69, 1.29,1.0 gearing.

I have one other option, and that is changing the gear on the input shaft, and going with the close ratio gears. I could get the ratio down to 2.10, 1.45, 1.14, and 1.0. Add the face plating charge, and I'm looking at about $1500.

With this old, slow turning flathead, it seems to me the closer gears would be desirable.

So here's my question- is it worth $1500 to get the gearing? It will definitely help me stay in the power range I want, but will it make that much difference in 3, 4, or 5 miles?

Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Glen on October 16, 2012, 03:29:49 PM
Buddy, if you pass thru St. George I'll have a cold beer or two for you. :cheers:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: BoredAndStroked on October 16, 2012, 03:46:47 PM
Buddy, if you pass thru St. George I'll have a cold beer or two for you. :cheers:

Heck - that might make it worth a trip for me as well!  (Just kidding you!).  

My family is from out West - I've traveled through St. George many a time on vacation.  We were always heading from California to Colorado, Utah, Wyoming, South Dakota and Montana.   I've seen some unbelievably hot days on these trips in good ole' St. George.  Dad would crash at the Hotel while all us kids spent the whole time in the pool!  We'd let the ole' family station wagon cool off - then go like mad at night . . . usually still way over 100 degrees in mid-summer.   :-P
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Glen on October 16, 2012, 04:35:31 PM
But it's dry heat unlike the south. We moved here from Calif. and no smog, blue skies, no crowds, little crime that is handled the old fashion way.  :cheers:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on October 17, 2012, 04:12:32 PM
Glen, Thanks so much for the invite, but I'll need a raincheck, if possible. This is going to be a quick trip, with a week spent in Cali, working on flow, seeing Dema about the cam, and visiting Don about the new girdle.

Here is an update from Dale, on the top of the engine tear down. For those that have followed the build, this is the first time we've posted actual pics of the chambers!


My wife Amy and I (yes, she's in the shop working with me on this) have pulled the FlatCad engine out of the car and started the dis-assembly process. I look at it more like a forensics process of paying complete attention to detail, looking at everything, suspecting everything and seeing what you can learn. If you take your time and really look for the minute details - they are frequently there. Sometimes you can make deductions (based on obvious facts) - other times you're applying all that you know in a creative manner to ATTEMPT to explain what you see.

Background on a Couple Key Things:

1) We have custom designed billet aluminum heads.
2) Due to this, we have custom designed head gaskets - .072 solid copper with a rubberized coating to attempt to seal the water passages.
3) Heads are O-ringed (not the block) - remember, this is a flathead.
4) We fill the engine with water at the start of the race day - and drain the water EVERY night. This is for fear that we'll seep some water into the engine (over night) and ruin it the next day. This has happened to many guys in our situation, so we're very cautious.

When I pulled to top of the motor off (blower, intercooler, manifolds, etc) - noticed we had a teaspoon of water in the bottom of the center exhaust port on the driver's side. This side did NOT have a new head gasket put on for the Ohio Mile and it was not re-torqued (as we'd torqued it at least 4 times before).

Hmmmm . . . water . . . not good. Where did it come from? We didn't see anything on the dyno, Bonneville or the Ohio Mile. Did this concern me - hell yes! Leaking intake studs? Cracked block? What?

I then pulled the plugs on all cylinders - notice a very slight amount of rust on one of the center cylinders on the driver's side. Hmmmm . . . that means that the water was also inside the cylinder . . . also not good.

Then we pulled the heads and here is what we found - yes, now I see an explanation and also realized a couple new things for next year:


See the rust in the transfer area - probably some on the seat as well

The head gasket was obviously leaking water into the cylinder - notice the discolored areas in the head and the gasket pictures (outlined in red).

Now - look at the passenger side (looks great!)

So here is what I noticed on tear down - which is why I do this by hand and I DON'T use air tools:

a) The torque on the driver's side was not what it should have been - was closer to 45 ft lbs, than 60. AND - this surely wasn't due to us not re-doing the torque many times (we did it 4 - 5 times at least) . . . during hot and cold cycling.

b) When I put the passenger head back on at the Ohio mile, I INCREASED the torque by 10 foot lbs . . . to 70 on the main/stock studs and 50 on the 7 that we added. This worked really well and the torque was maintained. The pictures show this.

Conclusions and Plans for Next Year:

1) Constant Re-Torque: No matter how many times you torque these heads - we need to check the torque after every run and ensure that the clamping forces are maintained. This also means that our new header design MUST be done in a manner that makes it easy to pull the headers. Currently, there is no way to retorque the heads with the engine in the car and the headers on.

2) Higher Torque: We're very sensitive to how much torque we use as the decks are pretty thin on this engine. Also, the seven added studs cannot be torqued like the stock ones that have the big cast-in bosses in the deck. But, we need to use the higher 70/50 torque settings . . . as this head was perfect and I didn't see any signs of gasket failures.

3) Heads - Some Rework: We need to rework the stud holes (too tight) and the stud washer setup. It is way too difficult to pull the heads - as there is too much binding within the stud holes, stud washers, thread sealers, etc.. I should be able to pull a head in about 15 minutes . . . currently it takes 3 hours on the car and over an hour outside the car. It is a TOTAL pain in the butt!

4) Adding Deck Dowel Pins: If we're going to loosen up the stud clearances, we should add 2 dowel pins to the deck - to guarantee alignment and non-movement.

5) Head Inspection: Due to the possibility of water with solid copper head gaskets, we need to pull the heads after EVERY meet - to inspect for water, oil the bores and valves, etc.. We can't afford to have even small amount of rust in the cylinders, valve seats, etc.. This needs to be a part of our standard operating procedures. It is also why it needs to be easy to pull the Dodge heads!

More tonight - as I'll now take the lower-end apart . . .

B&S

Thanks for the help Amy!  
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on October 17, 2012, 04:18:31 PM
Um, Dale? Did you forget that at Bonneville, we had the same issue on the passenger side, and we found it when we tore down for engine verification??!!

Here is the passenger side.

I'm headed to Dale's tonight, so there will be a bottom end update tomorrow!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Dr Goggles on October 17, 2012, 04:27:53 PM
Dale, Buddy, Don, Amy, nice work.Detail and analysis.....oh yeah, not long to wait for that story, early Nov from what I remember.

DrG
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: SteveM on October 17, 2012, 05:14:16 PM
Forgive me for asking what may seem obvious, but what do you think causes the need for constant re-torquing?  Do the head gaskets continue to compress, or is it something else?

Steve.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on October 17, 2012, 05:59:37 PM
Forgive me for asking what may seem obvious, but what do you think causes the need for constant re-torquing?  Do the head gaskets continue to compress, or is it something else?

Steve.

I think it's a combination of things, and we just haven't got the procedure perfected yet. I think the blasted copper gaskets are an issue, as they never seal water good. Cosmetic will make me gaskets, but only up to .059' thick-not the .072" we need.

I would much prefer steel heads, but whittling them is intense! Add over 16 psi boost, heating and cooling several times, blah, blah, blah!

We torque the heads, get them hot, cool them off, and re-torque. It takes several times before we like the torque readings. I don't think having head bolts with 2 different torque settings help, but we don't have much choice.

We'll make it work-it's just a pain in the rear!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: jdeleon on October 17, 2012, 06:26:09 PM
It seems you aren't leaking combustion but sucking water.  Some thoughts on this.  I use Valco Hylomar spray on all copper gasketed engines I build.  This eliminated water problems.   How proud is your o-ring?  I always put the o-ring on the iron side...block or sleeve flange.  The aluminum will distort or conform better than the iron. 
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: jdincau on October 17, 2012, 08:47:54 PM
We use plain crushable spark plug gasket washers to seal around the water tranfer holes. The copper gaskets have holes just larger than the od of the plug washers. This setup has proven reliable on a non pressurised system.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Koncretekid on October 17, 2012, 09:18:15 PM
Regarding alignment after you solve the sticking bolts in the head, you might be able to just make sleeves that fit around a couple of head bolts, if you have enough "meat" to loose a couple of threads in the block (counter bore the head and the block at two of the bolts).  This is what I did to re-align the head to the cylinder on my BSA.
Tom
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Jack Gifford on October 18, 2012, 01:27:35 AM
Bite the bullet; convert to dry deck/head surfaces, reconfigure the coolant flow paths appropriately.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: jl222 on October 18, 2012, 12:46:46 PM
 
  38 Flattie...we use a thin layer of high temp silicone around the water holes,just a dab and smear with finger around the hole. On block 1st, then on top of gasket under head. Head gasket is 50 thou. copper, works good.

           JL222
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: WOODY@DDLLC on October 18, 2012, 01:49:18 PM
Buddy, Dale, et al. Tighter is not always better! In my early wrenching days I had problems with a copper gasketed Honda motorcycle. The solution was to moly-lube all the moving parts of the bolted joint and reduced the torque to minimum values. Also annealed the copper between races.

Bolts and studs are glorified extension springs and if you pull too hard they stretch and the screen door will no longer close!  :-o

Or if the joint is subsequently loaded too high by thermal expansion!  :-(

A few years later I spent some time designing some automated rod bolt stretch gauges for automotive companies. Torque to yield was just coming on the scene about then but I am still fascinated with fasteners!

Very good overview here of the complexities of simple bolted joints: www.boltscience.com
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Queeziryder on October 18, 2012, 02:46:34 PM
HUH
Wer'd Glen's post go???

BTW
Brilliant idea Glen  :cheers:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Glen on October 18, 2012, 02:59:39 PM
I removed it as we have a how to section that should be used but broken down to the subject shuch as the bolts and studs etc.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: jimmy six on October 18, 2012, 11:02:49 PM
May sound goofy but try to "glue" a piece of thread around the holes that leak...Always worked for me and my leaking GMC's when I used copper gaskets. Now I use Best and they have been woking fine. The 2 dowels are very important also...Good Luck
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Buickguy3 on October 19, 2012, 10:12:40 AM
  We had similar issues with the engine in the Cat, and we did as Jack says, converted to dry head and deck surfaces. Cured the problem of blowing all the water out of the cooling system. No more water issues. Made about 20 pass' this year and never  had to pull the top off of the engine.
   Doug  :cheers: :cheers: :cheers:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Rex Schimmer on October 19, 2012, 12:56:46 PM
Buddy,
If you are going to be in Santa Rosa to see Dema this week let me know and I will buy lunch or at least a beer!

I  have to agree with Woodie regarding the torque of the studs, they are just very stiff springs and setting them with a torque wrench is really a "second hand" method of seeing how much stretch (preload) that you have put into them therefore it is very important to properly lubricate the threads and the nuts to insure that the torque is an accurate measurement of the stretch. You might think of using a dial indicator to establish the amount of stretch in each stud and then check them against what the torque wrench reading is. First you have to establish what the proper amount of stretch is to get the stud preloaded in the 80-90% of yield range. If you are having a situation of having the studs loosen during runs you could have a situation of thread yielding in the block which is probably only "fixable" by doing to larger threads on the stud end that screws into the block. As Woodie  was saying thermal expansion when torqued to tight can actually start to stretch the studs. I would suggest that you accurately measure the length of each stud and then assign a position in the engine for each stud and then re-check the stud length at each engine tear down. If they are stretching then they are to tight or not large enough for the load.

Rex
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: maguromic on October 19, 2012, 01:37:55 PM
Rex, I thought you were hunting all week.  If you are buying lunch I will show up too  :-D , I have some cams to pick up from Dema. Tony
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: RichFox on October 19, 2012, 03:25:53 PM
Buddy; If you are going to drive up 101 through San Mateo and across the Golden Gate. I am about 15 seconds off 101 and the transmission is pretty close to the door.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Jack Gifford on October 20, 2012, 01:46:52 AM
Doug- lots of off-the-shelf parts kicking around to dry-deck a Buick straight-eight? :-D

Someday- I'd like to see what the new circulation path is. Still use coolant in both block and head?
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: RichFox on October 20, 2012, 09:38:51 AM
My Plymouth with the Ford head as well as the Pontiac I ran in the Vega were both dry decked. The Plymouth has a large odd shaped at the front of the deck. It was very close to or in the combustion chamber of the Ford head. So I cut a piece of iron to fit and ground a good kerf on it and had it welded. All the other holes were tapped for taper thread plugs and everything was surfaced. All the Pontiac holes got pipe plugs. Water went into the back of the heads (or head) and out the front. into the front of the block and out the back. On both engines I made my own solid copper gaskets without water holes in them. Seemed to work fine and cured the Pontiac of it's blown head gasket habit.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Rex Schimmer on October 20, 2012, 02:11:58 PM
Pretty hard to beat the advice from guys that have "been there, done that" like Rich and Doug. Dry head and deck surfaces make a lot of sense. Sure would make the head gasket simpler and more reliable.

Rex
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on October 20, 2012, 07:47:13 PM
Wow! Lot's of good advice while I was away!

Rich, see you Tuesday

Tony and Rex. does Tuesday morning, or lunch time on Tuesday work for you?

I appreciate all the replies! Thread, silicone, Hylomar (which we use) are all good ideas. Dry decking it would be nice, but it looks to be an extreme amount of work for the odd shaped water passages, Look at the first pic- How would you guys go about plugging these passages?

I'll discuss dry decking the block with Don- it does seem to be the absolute to the issue.


We tore the engine down Wednesday night, and I was surprised! The bearing looked great- no signs of flex or movement! The front bearing showed just a touch of possible flex, I believe due to the blower drive.

We couldn't be totally drama free, however- on 5 cylinders, the lifters had backed themselves off, and we had valve lash in the ,250-.300 range! luckily, only  two lobes on the cam showed any damage as a result. Even those lobes will clean up with a quick polish.

We didn't finish until 4:30 a.m., so we're a little shy on pics- good thing there wasn't any carnage!

So, next week I'm off to deliver the block to Don, cam to Dema, and see if we can make some gains with flow. My goal is to try and pick up 30-50HP through additional porting, tweaking the head chamber design, and a new cam.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: RichFox on October 20, 2012, 09:51:13 PM
The deck does look labor intensive to seal. I would guess you could do it with cut to fit plugs and stitch threading and JB Weld around the edges. The lifters look like they have room for pal nuts.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Jack Gifford on October 21, 2012, 12:45:18 AM
... How would you guys go about plugging these passages?...
You'll probably get lots of suggestions. Personally, I'd use a manual mill to "trim" each opening (heads and block decks) to geometric shapes (circles, etc.), for which individual aluminum plugs could be machined (CNC would be nice here, for polygons with radiused corners, etc.). Interference fit could be calculated to not worry about different thermal expansion rates of iron/aluminum. Somewhat tedious, but not as bad as some similar efforts that I've succeeded at.

What am I missing in the picture? It gives the impression that the two threaded lifter parts are only accessible for wrenching when the lifter is not on the base circle?
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Rex Schimmer on October 21, 2012, 02:20:08 PM
Buddy,
I am retired so of course Tuesday works for me!! Give me a call at 707-484-5721 and we can arrange something. Probably meet at Dema's shop? To bad it looks like rain as we could go to the "Hot Rod Lunch" at Fred Stoke's place but it is out side and rain makes it a no go.

Call me if you have time to get together.

Rex
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Freud on October 24, 2012, 12:51:50 AM
. Probably meet at Dema's shop? To bad it looks like rain as we could go to the "Hot Rod Lunch" at Fred Stoke's place but it is out side and rain makes it a no go.

Rex
[/quote]

Hey Rex, detour to Jack's Garage for breakfast. It never rains at Jack's. Even if it did JD Tone would supply umbrella girls.

FREUD
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Rex Schimmer on October 24, 2012, 02:02:00 PM
Freud,
When I am in So Cal I never miss a morning at Jack's Garage!!! Great place and great people. Have you ever seen the quilts that Jack's wife makes from old Bonneville Tee Shirts? I plan to take a bunch on the next trip south to have her make me one. They are neat!!!

Back to blown Cad flatheads!

Rex
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Freud on October 24, 2012, 02:40:46 PM


Back to blown Cad flatheads!

Rex


What a marvelous destination. My experience in Cad flatheads goes back to 1947.

My Dad loved those monsters.

FREUD
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on October 27, 2012, 05:36:33 PM
I've just returned from 5 days In California, on a quest for more HP in the flathead- wow, did I ever get my arse kicked! More on that later!

Tuesday morning, I met Rex Schimmer for breakfast, then we headed over to Dema Elgins, and spoke with him about a cam. Rex, thanks for taking the time to meet with me-it was good to see you again! Tony, time was short, but we'll catch up next time, okay?

From Dema's I headed down to Rich Fox's, to pick up a tranny he loaned me. Always good to see you Rich!

Then, on to Don's place, where I picked up the test chambers he cut, so that I could modify them, instead of our real heads. Don's always on top of this stuff!

Tuesday night I was in Arroyo Grande , having supper with Garry Odbert. Garry was an immense help on everything- he even had his test block there, so we could compare the porting to his. Garry runs the Retarded Spark Special, a record setting Caddy flathead powered roadster. Thanks Garry!

Wednesday morning, Garry and I headed over to Race Engine systems, in Santa Maria, owned by Craig Gerfen. Craig was Alan Johnson's top fuel port and flow guy for 8 years, and had also ported Garry's Caddy flathead.

Here is where the arse kicking started! I'm not going to post every number, test, and dye test we did, but I'll tell you what we found out. Plain and simply put, the ports are too large, therefore velocity suffers, and they don't flow as well as they could. Across the board, we're down about 20 CFM from Garry's. We flowed my engine, then Garry's, back to mine, etc', so the data was current and reliable.

After, trying everything to increase flow- different valve angles, different valves, different chamber designs, blending the valve guides, etc., to no avail, we tried a different approach. We added material around the short side radius. BAM- an instant 10 CFM gain! We played with this for a while, and determined we need to add material back to the ports, then do another port job. We also played with the relieved block, but that only reinforced my previous belief, and that belief is that it is a waste of time.

So, I called Frank Morris with the Salt Cat guys, to find out what epoxy they had used on the Buick engine. Frank and Doug are great guys! Frank gave me the info I needed, sold me a set of 29" tires, so it was a win/win conversation for me! Thank's Frank!

So, it can't get any worse, right? Wrong!  We flowed the exhaust, and they sure do flow- too Dodge much! The exhaust out flow the intakes, and that is not good! That correction will come with the cam choice- my guess is we'll end up with a dual pattern cam.

We did a couple of dye tests, to see what was going on in the chambers. With our current setup, the A/F mixture swirls around in the chamber, running back into itself- basically creates a traffic jam in the chamber. We took the angled ramp out, and straightened that transfer area out. On my engine, we see a small inrease on flow, but a lot better flow pattern out of the dye.

At the end of the day, the stock block, ported, with a stock 106 CC Caddy head, flows better than the FlatCad head and either of the 2 mods I made, better than Edmunds, and better than Cyclone! The stock head has several complex contours and ramps in it, and flows well- it appears the Caddy engineers really knew their stuff!

So, to gain the CFM I went to California for, we need to add material to the ports, re-port the block, and change our chamber design. Here are numbers from the #8 cylinder, which is the best flowing cylinder on Garry's car- he flows 200 CFM on the intake side.  Our best cylinder was # 3


                         #8 intake                                   #3 intake                                       #8 exhaust


.100 lift                 69                                              64                                                    73

.200                     121                                           118                                                  120

.300                     154                                           157                                                  145

.400                     175                                           173                                                  165

.500                     173                                           180                                                  174

.525                     173                                           179                                                  176        


Here is what is typicle of our worst ports, intake only  


                        #5 intake                                    #5 intake modified with clay


.100 lift                 63                                             60

.200                     114                                           110

.300                     150                                           151

.400                     162                                           169

.500                     163                                           174

.525                     163                                           174




At this point, I had the knowledge I had came for, and I loaded up and headed back to Don's place to spend the night. After a nice dinner, Don and I retired to the garage, to smoke, joke, and bench race. Don, as usual, it was great seeing you and Dar- many thanks!

Friday I headed for the house, but stopped in Salt Lake City to visit Kenny Kloth, as I had some specific questions for him about roller lifters and his chamber design. Kenny is a great guy, and a wealth of knowledge, He was very helpful, and informative. I stayed a couple of hours, but easily could have stayed several days, had time permitted.


So, the HP quest continues!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on October 27, 2012, 05:38:43 PM
A few more pics.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Glen on October 27, 2012, 06:03:07 PM
Very interesting stuff Buddy. looks like you have a few days of work ahead. :cheers:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Jack Gifford on October 28, 2012, 01:20:57 AM
Are you certain that exhaust can flow "too much" on a forced induction engine? My limited experience (eleven full seasons of heads-up pulling competition) indicates otherwise. When Mickey designed the heads (Pontiac hemi) he went overboard on exhaust valve size and port CSA (recent flow-testing showed that exhaust flow would almost support a modern top fuel engine). Rather than downsize them for my small (370 c.i.) alky engine, I left them alone (2.03" valves, same as my intakes), and built 2.375" I.D. zoomies to match the port-exit area. Toward the end of my campaign, it was making a little over 900 HP (at no more than 13 PSIG in the manifold) and was "happy" at 9,000 RPM throughout most runs. So I'm not convinced that blower engine exhaust can breathe "too well".
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Rex Schimmer on October 29, 2012, 01:40:58 PM
Buddy,
I think that I have to agree with Jack, when the differential pressure between the inlet manifold and the cylinder is jacked up by a blower the flow past the valves is probably considerably different than when the differential pressure is only atmospheric. It is one thing to check the port flow at a max potential differential pressure of 14.7 psid and another when you add 17 lbs of boost and the differential potential is 32.7 psid. Using some basic flow through an orifice calcualtions the flow difference between 14.7 psid and 32.7 psid is about a 50% flow increase which also means the velocity of the incoming air is also increased by 50%. Any chance of testing your ports with additional inlet pressure?

Great seeing you and going to Dema's place.

Rex
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: SPARKY on October 29, 2012, 03:02:20 PM
I am a rookie with no blower experience but lots of research and questions--many of  the WWII aircraft engs. had almost identical ports and valves .

I talked with the eng on the Blown Ecotech---my question was "At higher boost levels is moving the exhaust port and exhaust valve larger the correct way to go?  He replied "VERY"
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: BoredAndStroked on October 30, 2012, 06:41:45 PM
There are many opinions on this - with some saying that our current exhaust flow is too much and this is a problem.   That is exactly what Buddy heard in his flow-bench work . . . makes it hard to know what to do???

FWIW: Before I ported the block and selected valve sizes I talked with Jeff Fowler at length . . . his comment was basically that with an all-out competition blown engine, you need to pay particular attention to the exhaust and you just about can't get it out fast enough.   His comments were that 'big flow' is usually better with this style of engine.   That is the reason we have 1.78" exhaust valves and extensive port work - I went for as much flow as I could get.   I also asked about things like putting port dividers in the center exhaust port (big Siamese port on the FlatCad) - he said it wouldn't make any appreciable difference on this engine.  I also asked about tuned-length headers - he said that won't make much difference either - which is why you see zoomies on all the top-end blown motors.   Is he correct?   Guess I was willing to bet my porting time and efforts on him.  In retrospect, we made some big HP on the dyno, so at least we have some results/statistics to work from.

So - who knows who is 'right' on this - but I trusted my instincts and the advice of somebody who has been building very high horsepower blown/competition engines for 30 years.  His engines are the most frequent winners in the unlimited tractor pull events - with the guys running 5 or 6 of them at a time.    Given the level of money and competition in his world, he has to be making very big horsepower for these folks to be running his stuff . . . and consistently winning.   Look up the 'Black Widow' tractor pulling operation - all the engines are Jeff's.

So - I only wish I had the time, energy and a personal dyno to test some of these competing theories and come to some concrete conclusions.   Until then, we'll try a few different things, see what the engine and great-white dyno tell us . . . hopefully we'll learn something.  I'm sure the debate will rage on - seems to be how it always is.   8-)

Thanks for all the comments and advice - we're just rookies trying to go faster!   The more we hear from you guys, the better.  

I'm going to continue to look into 'all things flathead' - as I believe there is a LOT more to learn.

B&S

Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: SPARKY on October 30, 2012, 09:17:35 PM
It occurred to me that the reason the exhaust on a turbo eng needs to be big-- the duration is usually less and you are not using "draw through" as much
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Koncretekid on October 30, 2012, 09:37:55 PM
I don't know much about supercharged motors, but I know one thing - - if you make more than one significant change between runs (dyno or actual) you probably won't know which change made the difference, if any.  So if you've found something that seems to improve the intake flow, and you change the exhaust flow at the same time,  you may not learn anything.
Tom
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on November 01, 2012, 10:31:56 AM
Jack, Rex, Sparky, - you guys may well be right. Using best/known proven practices are our best bet in my mind. Even top fuelers only run about 90% exhaust to intake ratio, but that is not to say what we have won't work, and work well. At the end of the day, Dema will grind the cam based on the numbers, and his experience, and we'll go back to the dyno.

Tom, you're absolutely right! Unfortunately, time and money dictate one trip to the dyno, so we'll have to see if we made gains on the entire 'package'!

Dale, you and I have sent numerous emails back and forth, and pretty well kicked this dead horse to pieces! Lol! So, one more time

Fowler builds high end tractor pulling engines-yes, I realize he does other stuff too, but his reputation is built on the pulling engines. I'm guessing that they have a huge amount of torque, and HP to waste. WE DO NOT! Simply charging more for the work he does, does not make his opinion more valuable either! :-o

One of the conversations you and I keep having concerns flow. You feel the blower probably compensates for bad/lack of flow, and just 'stuffs' the air into/out of the engine.

I believe air flow is air flow- if you have problems flowing N/A, then the flow issue is compounded when you add boost. A traffic jam is a traffic jam at any pressure. I believe the same about exhaust. It is well proven that tuned headers increase power on the dyno. Why would that not hold true on a supercharged engine? We don't have a 8000HP top fuel engine, where creating headers might cause too much heat or restriction. We have a 570 HP engine, when running headers on the dyno! I'll bet we don't have that HP with the short, straight pipes we are running. Next dyno session, we will dyno with the headers going onto the car, so at least we know what we have.

We cannot dyno every time we want to test a new idea- time and money will simply not allow it. Therefore, we will follow simple 'rules' for tweaking the engine- getting better flow N/A, headers, special cam, etc.

Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: BoredAndStroked on November 01, 2012, 11:44:27 AM
As you can all tell - Buddy and I don't agree on everything . . . and that is perfectly okay!   We're kind of a constant check and balance system for one another.   He is entitled to his opinions -- me to mine.   The dyno and the salt will settle some of our differences.   :cheers:

My one comment to the above is this:

IMHO:  I don't believe that anybody who is a constant winner looks at their engines with an attitude of "I have horsepower to waste" -- quite the opposite.  If they're willing to give up horsepower, their competitor probably isn't -- so they will be losers with that attitude.  In all forms of highly competitive racing, even incremental increases in horsepower can make the difference in who wins and who loses.   The only time I've seen folks knowingly give up horsepower is for consistency and/or reliability . . .  and exhaust design probably doesn't fall into those categories.   And they won't usually do it for long - as somebody else will solve the 'reliability' issue and kick their butts.


With the above said - we are all learning along the way, we'll continue to experiment where we can and over time (hopefully!), we'll figure out what this particular engine design likes best and how to make the most horsepower possible . . . and MAYBE we'll keep it together in the process!   :-D

Keep the conversations alive and the debates active - it is how we all learn . . .

B&S
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on November 01, 2012, 11:48:23 AM
As you can all tell - Buddy and I don't agree on everything . . . and that is perfectly okay!   We're kind of a constant check and balance system for one another.   He is entitled to his opinions -- me to mine.   The dyno and the salt will settle some of our differences.   :cheers:
B&S

 :cheers: :cheers:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: SPARKY on November 01, 2012, 12:14:41 PM
" The only time I've seen folks knowingly give up horsepower is for consistency and/or reliability ."

AERO  :? :?   :-D
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on November 01, 2012, 12:20:22 PM
Haha! Sparky, I'm on that track too!

I feel that while we can eek out a little more HP from the engine, aero is our biggest bang for the buck. The few HP we can add will help, but the big difference in speed will undoubtedly come from a sleeker, better flowing aero design!

Oh, and Don is starting work with some of the parts you loaned me, for the next phase of the project! I'll post pics as progress is made!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: BoredAndStroked on November 01, 2012, 01:09:44 PM
" The only time I've seen folks knowingly give up horsepower is for consistency and/or reliability ."

AERO  :? :?   :-D

Now if you're saying it from a cost/benefit reason . . . I'm with yah!  It takes a lot less horsepower for a car with aero to go the same speed as one with bad aero.   

But - given two cars with the same aero . . . which one wins?   The one with more applied horsepower to drive the object through the air (assuming traction).
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Roseville Carl on November 03, 2012, 12:04:32 AM
Hey Buddy are you guys going to be coming to Calif to do your dyno runs this year??
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on November 03, 2012, 09:23:52 AM
Hey Buddy are you guys going to be coming to Calif to do your dyno runs this year??


Yes, Carl- we'll be back at Vintage Hot Rod, with John Beck.

One, if we don't go to the same dyno, the changes in numbers could be changes we made, or could just be because of the dyno.

Two, I really liked working with and learning from John Beck, and feel it helped us tremendously! John also helped us out while we were on the salt, and that kind of attitude is hard to find, let alone replace.

I hope you guys come over and join us again ! I'm planning on March.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on November 04, 2012, 03:01:22 PM
Here's an update from Randy Jackson, who's got the car at the moment. Randy lives 15 miles from dad, and is working on suspension and aero mods!


Well guys and gals looks like im going to be posting a bit here and there as aero progress is made. I had a shop full of great minds yesterday helping me with the aero design and thought process wzjunk (john kimbrough) hooley (Lloyd huffman) doug lee and colorado bill all of which have been to bonneville and been involved with record setting cars. As we make progress on this please dont hesitate to offer advice or constructive criticism as the flatcad crew welcomes any thoughts on design and or fabrication ideas. The crew helping with the aero design are not professional designers but have experience with what works and so far as hooley says "they've never steered me wrong" and i have to agree. Buddy will be posting some pics in the near future of progress as it happens. So stay tuned to the flatcad channel as our quest for 200 continues
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Roseville Carl on November 04, 2012, 06:51:27 PM
Sounds cool Buddy we will be there, love to hear the Flat Cad make smoke!!!!!   :cheers:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on November 06, 2012, 09:41:17 AM
Sounds great Carl! You're bringing Jim along again, I hope?

Those of you that know me, know that I'm pretty stubborn when I get something in my mind.

I keep thinking about our flow, and I truly believe we are leaving some available HP on 'the table'. I inquired about having the exopying and porting done, but it is cost prohibitive.

So, I've decided the only way to be successful at this venture is to get a flow bench. As time allows, I'm going to find and purchase a flow bench, and epoxy and port this beast, to get the most out of her!


Yea, it's a her- a guy could never sound that angry! Lol! :evil:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on November 07, 2012, 10:17:50 AM
Ok, so now we have a flow bench headed our way! Thanks Sparky! It's always great, and informative, to talk with you!

Here is the final list of changes and mods we are going to do before El Mirage in May.


Test, epoxy, and port block for maximum flow

whittle new chamber design on heads

design, fab, and install new coated and wrapped headers

design roller lifters and blocks, install roller cam

design and install one piece main girdle assembly

install water injection-dyno test for gains

new gears/tranny installed

dry sump tranny and rear differential

narrower front axle for comp coupe class

hidden door hinges

removable drip rails

hood scoop for comp coupe class

new, more aero friendly front body panels for comp coupe class

wind tunnel time to 'tweak' and test aero design

dyno time- 650 HP goal!


It's going to be a busy off season, to say the least!

We we're discussing the roller lifters, and trying to decide on a suitable solution to keep the lifters aligned. We were leaning toward double keyed lifters, but then Don came up with a brilliant idea- oval shaped lifters!

So, this engine will have custom made lifters and lifter blocks, with oval shaped lifters and block bores! :-D

Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: RichFox on November 07, 2012, 12:33:34 PM
Oval lifters? Isn't that going to be expensive?$$$  Whats wrong with the key and slot design that has worked for some time?
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on November 07, 2012, 02:11:49 PM
Rich, we have to make new lifter bodies and blocks anyway. Don thinks with his CNC's, this will be a better, easier way.

Ironically, when I stopped and chatted with Kenny Kloth, he mentioned he had considered using square lifters, for ease of manufacture.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: SPARKY on November 07, 2012, 02:46:47 PM
700 would be a nice round number  :-D

Buddy and I need a LSR Drop House in Al-ba-QQ. NM,   in Dec.,   no, no, no-- not for a drug deal a parts deal!!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Pete1 on November 07, 2012, 02:54:06 PM
Oval lifters? Isn't that going to be expensive?$$$  Whats wrong with the key and slot design that has worked for some time?

Right on Rich.
It has worked on many different engines over the years and is still one of the more popular designs not to mention
far cheaper to install.
The only problem is right now I am having a hard time finding someone with a wire EDM to do the slots for a reasonable cost. Including Don.
The pics show a radius lifter but rollers would be no big deal because the slots could be done on CNC before heat treating.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: RichFox on November 07, 2012, 04:31:04 PM
There must be something i am not seeing here. Why do you need a wire EDM to machine slots? Couldn't you grind them? If the lifter is to hard to mill. Or use an ELG?
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on November 07, 2012, 04:34:56 PM
Pete, when you first did those Caddy lifters in the pics, that was what we planned to do. I'm sure it would work fine for us, like it has on so many other engines.

Roller lifters cause more side load on the blocks than the radius lifters, so we wanted beefier blocks anyway, We decided rather that modifying a current lifter body, a new lifter body would be the way to go. Since we are making both, I really like the oval lifter idea! The CNC does the work, and every lifter and bore is exactly the same, unlike when drilling the blocks for the keys.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Pete1 on November 07, 2012, 04:56:16 PM
Pete, when you first did those Caddy lifters in the pics, that was what we planned to do. I'm sure it would work fine for us, like it has on so many other engines.

Roller lifters cause more side load on the blocks than the radius lifters, so we wanted beefier blocks anyway, We decided rather that modifying a current lifter body, a new lifter body would be the way to go. Since we are making both, I really like the oval lifter idea! The CNC does the work, and every lifter and bore is exactly the same, unlike when drilling the blocks for the keys.


There must be something i am not seeing here. Why do you need a wire EDM to machine slots? Couldn't you grind them? If the lifter is to hard to mill. Or use an ELG?

On new ones there would be no problem as they would be slotted before heat treat.
If you are making radius lifters from stock lifters as I do on flathead Fords the lifters are Rockwell 55C to start with.


On the side loading, you are no where near anything critical either with radius or roller lifters.
However, while oval lifters will work physically, they are mechanically less efficient than slotted ones due to torsional friction.
One of the more efficient roller designs was used by Harmon & Collins on their old roller cams from the 50's. They were very easy to
manufacture and probably the lightest. As a side note, their cams had inverted flanks to get the rate of lift up. VERY essential to a good design.
Not many do that today.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on November 07, 2012, 09:04:33 PM
Pete,

Our lifters will be light, as we will go wiith a hollow body.

I'm not familier with the Harmon & Collins roller lifters. Do you have any pics of them you can post?
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Jack Gifford on November 09, 2012, 11:22:43 PM
The FlatCad made it into Hot Rod Magazine- congratulations!

The reference to Harman-Collins roller lifters is probably to the the ones that were sold about 1960 - 1963 (briefly marketed under the Schiefer name, I think in '63/64). I'll need to search old pieces to get a photo (I used them initially in my M/T hemi engine). They used custom-cast bronze sleeves in the lifter bores- the sleeves had slots on the bottom that the wheels travelled in to keep them aligned. The sleeves in turn had anti-rotation tie bars (across the valley). They didn't work for the loads in my engine (625 pounds-open springs), since the narrow wheels and small body diameter (~.600") severely limited their strength.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Pete1 on November 10, 2012, 12:00:34 AM
The FlatCad made it into Hot Rod Magazine- congratulations!

The reference to Harman-Collins roller lifters is probably to the the ones that were sold about 1960 - 1963 (briefly marketed under the Schiefer name, I think in '63/64). I'll need to search old pieces to get a photo (I used them initially in my M/T hemi engine). They used custom-cast bronze sleeves in the lifter bores- the sleeves had slots on the bottom that the wheels travelled in to keep them aligned. The sleeves in turn had anti-rotation tie bars (across the valley). They didn't work for the loads in my engine (625 pounds-open springs), since the narrow wheels and small body diameter (~.600") severely limited their strength.

I had mine (a Cad) in 1955 and got them direct from H&C.
We put them in 3 sprint car engines, a Dodge and 2 Desoto's.
They worked fine there and would turn 8000 easily.


Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Jack Gifford on November 14, 2012, 01:29:47 AM
I assume this is the H-C lifter mentioned? (Ignore the pushrod seat which I made up).
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Roseville Carl on November 14, 2012, 09:04:31 PM
Was that made from oillite material or brass??
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Jack Gifford on November 14, 2012, 10:45:46 PM
They are a bronze alloy, but I don't know the detail composition. Doesn't act to me like Oillite. There was no need for them to be Oillite, as they receive plenty of full-pressure engine lube.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Roseville Carl on November 15, 2012, 10:20:33 PM
looks like pretty easy to duplicate..........
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: SPARKY on November 22, 2012, 10:13:09 PM
Darn  plywood sure has gone up 24.00 per sheet  for BC 3/8 for a shipping crate for the Flat Caddy stuff almost have the shipping crate done..
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Milwaukee Midget on November 24, 2012, 10:58:20 AM
Darn  plywood sure has gone up 24.00 per sheet  for BC 3/8 for a shipping crate for the Flat Caddy stuff almost have the shipping crate done..

Unfortunately, a lot of plywood has been diverted to New York and New Jersey.  Same thing happened during Katrina.  I did some rehab work with a church group in Biloxi, and 7 months after the storm, materials were still in short supply and demanding high prices.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: BoredAndStroked on November 24, 2012, 06:54:43 PM
RE:  Harman and Collins Original Roller Lifters and T-Slot Bronze Guides.

I also happen to have a set of the original H&C roller lifters - used a small diameter body and a .750 roller . . . very light weight.   Don Garlits was after me a few years ago to acquire a set - decided to hang onto them (he wasn't exactly wanting to spend much of anything on them!).   The bronze T-Slot bushing used a guide plate that slid into a slot in the brass bushing - then it had a cross-bolt to pickup the guide plate on the other side - which kept them indexed.

Many of the early H&C roller cams used a 'hollow flank' or what is also called an 'inverted radius' profile - just like the Harley KRs had.  The challenge in today's world is that in order to create the inverse radius, you need a very small diameter wheel on your cam grinder -- which almost nobody has today.   About the only guys that I know that have them are guys that grind special Harley cams on older Berco (sp?) grinders . . . and they're not usually setup to think or care about custom V8 automotive stuff.

I'll post some pictures of the H&C lifters tomorrow - kind of cool to at least look at  (though they're not really what we need for the FlatCad).    The big issue with the H&C or Harley KR style of lifter is that the bronze bushing (or lifter block in Harley's case) had a T-Slot that indexed on the roller itself . . .which limits the amount of lift you can have (as the roller comes out of the T-Slot).  Even with an .850 roller, you are really stretching it to get to .500 lift with the body size of a Harley lifter.   Harley's biggest factory race cam on the KR flathead was about .440 lift.

Cool conversations . . . keep em' coming!

B&S
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: BoredAndStroked on November 24, 2012, 07:13:33 PM
RE:  Thanksgiving Forensics on the Condition of the FlatCad . . .  Gobble Fricking Gobble!  :-o

Been working over the holidays to clean up all the internals from the FlatCad, do some more forensics on the parts and get ready for the freshen up, numerous modifications and rebuild for next year.

A little history on the motor: This was the first year that it has been ran - just finished it in early spring, brought it to John Beck to dyno, managed to get it ready for Bonneville . . . ran it hard there and REALLY ran it hard at the Ohio Mile. It has gone through various issues with fuel problems, it has been over-revved (yes - I was the guy that floated the valves  :evil:), it was thrashed hard at the Ohio Mile to see if it could handle it, etc..  Buddy decided to 'see what it could do' . . . which makes me shiver and shake like an old dog passing razor blades . . . . God love him!   All I could think about was the conversation of "Well - guess we need to make another one . . . ".  :cheers:

Frankly, when we took it apart . . . we had no clue as to what we were going to see.

We found that 5 of the intake lifters had adjuster issues and they'd backed off about .250 (out of .510) . . . which means not only did we have very little lift, we had very little duration - but it still ran really hard. Cheap repop lifters caused the issue - in 2013 we're going to a custom roller cam to hopefully give the valve train a bit more reliability and take some drama out of it.

Three Mains a Go Go . . .

It was the lower end that Buddy and I were most worried about - as we'd thrashed it hard, had thrown a LOT of horsepower at it and we have no clue as to how strong these blocks actually are???  There is really no tribal knowledge on what was weak, what will fail first, etc . . . so it was a big ole' guessing game.  Though - we'd done everything we could think of to design a really strong lower end . . . steel mains, big thick girdle, billet Crower crank, billet rods, etc..   Don did some unbelievably beautiful machine work . . . based on my 3D CAD designs - everything was spot on.  With only 3 main bearings, 4 5/8 stroke, 8.75" rods, 6000+ RPM and 550+ horsepower . . . what were we in for?

Well - attached are the pictures of the key lower end components - everything looks really normal . . . better than we had expected.

You'll see the crankshaft journals -- the mains are in good shape, the rod journals have a bit of wear on the back side. After close inspection today, I believe that they'll need to be ground under size to .010 . . . as I can feel some grooves with my fingernails.

Take a look at the bearings - in pretty dang good shape. Maybe our 'priority main' oiling system kept them happy?  

A piece of crap went through the center main, but all-in-all, they were in nice shape for what they went through.

You'll also see a couple pictures of the pistons. They were coated by our sponsor (Finishline Coatings - great people!) - with a ceramic coating on the tops, a friction reducing coating on the sides and a oil shedding coating on the undersides. Given the extreme piston speed we experienced, they look really good.

Even though we're running a dry sump and this beast has an extremely tall deck (8.75" rods), there was plenty of oil up in the pins, the skirts looked really good and the Akerly HTD rings showed a really consistent sealing surface all around.

Everything looked really normal/good - especially considering that this engine had quite a bit of time on it (for a 100% purpose-built race engine) . . . with no checks or freshening up since the dyno.

Good stuff gang . . . gives us a lot of encouragement for where we're headed. Hopefully - stronger, faster and with more HP . . . and still reliable!

We'll keep posting as we get into the next stage of things . . . should be some real fun!

Thanks for listening to my Holiday Babble . . . tell me when you've heard enough!

B&D
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Captthundarr on November 24, 2012, 07:26:10 PM
Keep it coming. Glad to see your forthought on adding strength to the bottom end paid off. Hope to see you in Ohio in 2013.

Happy holidays Frank and Amy.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: BoredAndStroked on November 24, 2012, 10:06:56 PM
Whups - didn't post the rod bearing.   If you look at it, notice that it is wearing more on the sides then the center . . . my guess is that we're seeing some crankshaft deflection (remember 3 mains and 550+ HP).   I'm going to review the rest of the rod bearings and talk to some of my expert crankshaft folks - I think we need some more clearance on the journals to handle the 3-main deflection/bending.

Here yah go:

Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: BoredAndStroked on November 24, 2012, 10:08:30 PM
I assume this is the H-C lifter mentioned? (Ignore the pushrod seat which I made up).

Yes, that is a H&C lifter  . . . with your custom gonzo top!   :lol:   What are you up to with that setup? 

I was pondering using mine for an Ardun setup years ago - but since that time have decided that I need much longer lifters for better geometry in an Ardun . . . so they sit in a box.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: saltracer1 on November 24, 2012, 10:28:41 PM
Why didn't you coat the rod and main bearings? Just curious...
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Pete1 on November 24, 2012, 11:02:48 PM
Whups - didn't post the rod bearing.   If you look at it, notice that it is wearing more on the sides then the center . . . my guess is that we're seeing some crankshaft deflection (remember 3 mains and 550+ HP).   I'm going to review the rest of the rod bearings and talk to some of my expert crankshaft folks - I think we need some more clearance on the journals to handle the 3-main deflection/bending.
Here yah go:


As we discussed before, you need more clearance with 3 main cranks, both rods and mains...Some more than others depending on the girdle. You need more rod side clearance also. You have dry sump oiling and that is almost a requirement with big clearances. We run AT LEAST 100 lb oil pressure also.
Some of this stuff doesn't equate to modern engine practice but we are not dealing with a rigid block with 5 mains.
As one who was getting over one hp per cubic inch from a 315ci naturally aspirated gas flathead Ford in the early 50's and well over 400hp on straight nitro, I have been through all this stuff and fairly well know what works.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: SPARKY on November 25, 2012, 09:48:52 AM
Wow  good good stuff ---which rods we you seeing more deflection on? The frt would be my guess!!

:cheers:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Milwaukee Midget on November 25, 2012, 11:26:10 AM
Wow  good good stuff ---which rods we you seeing more deflection on? The frt would be my guess!!

:cheers:

Sparky - I'll bet you a beer the deflection is in the middle - the 3, the 4, the 5 and/or the 6.  They've stablized the front with that crank locator for the blower drive, essentially making an external  4th main bearing, and the transmission helps locate the rear.

Any takers?  :cheers:



Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: BoredAndStroked on November 25, 2012, 11:31:30 AM
Come on boys - get your deflection bets in!  

I'll be taking pictures of all the rod bearings today - will line them up in order.  Then we can see the wear patterns, determine which ones seem to have the biggest issues and then correlate them to which crankshaft rod journals have the most scoring on the back sides. (backside of the rod journals).

Hopefully there will be something to learn today . . .  guess we'll find out!

B&S
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on November 25, 2012, 03:36:07 PM

Take a look at the bearings - in pretty dang good shape. Maybe our 'priority main' oiling system kept them happy?  

Even though we're running a dry sump and this beast has an extremely tall deck (8.75" rods), there was plenty of oil up in the pins, the skirts looked really good and the Akerly HTD rings showed a really consistent sealing surface all around.
B&D


The stock priority oiling system is very good, no doubt about it. Adding the dry sump and more volume only adds to the success of the design!

Even though we had plenty of oil to the piston pins this year, it doesn't make me feel warm and fuzzy about next year. We're discussing going to vacuum in the engine next year, so any benefit of 'splash oiling' we had will be lost. Even if we have adequate pin oiling, we can still benefit from cooling the pistons with oilers.

I don't agree, however, that we need to run 100 psi in this engine, for it to survive-not even close! I think if we could enlarge our oil ports, thereby increasing volume while decreasing pressure, we would be more successful. It would be better for the engine internals, and take less HP to run the oil pump.

Now, just like Paul Harvey- The Rest Of The Story!


For the amount of runs on the engine, the bearings look good. The front main bearing showed some crank flex, but I attribute that to the blower drive, since the front showed the most.

I'm interested to see if the rod bearing wear is confined to a couple of rods, or the center ones, as Chris suggested.

The pic of the rod bearing shows the effect of geometric irregularities. This could be because of crank flex, but there are other possible causes. A slightly bent rod, detonation, or rod journals ground with a slight 'hourglass' shape can also cause this wear.

There is even more to this story though, and I suspect it probably contributed to the wear- We misused the rev limiter this year. Instead of setting it higher than we needed, and only having it there in an emergency, we ran against the rev limiter, using it to determine the max RPM we hit each run.

Rex  was kind enough to point out the error of our ways, and the explanation made perfect sense to me. What we were doing was having some pistons loaded, then randomly unloaded, in no certain order. I can't help believe that this probably added to our crank flex.

The bearing clearances are one of those things that Dale and I have discussed in depth for the past year. I don't believe we can open the clearances up enough to not show wear from crank flex-the flex is bound to be more than the additional .002 or so that we would open them up. Nor do I think that it is necessary. The mains have the following clearances F = .0035, M = .0035, R = .004, and the rods have .025-.075. The Mains are 2.75", and the rods are 2.1"

Increasing bearing clearances are not necessary in my opinion, but finding out why we have that wear is. I truly believe proper use of the rev limiter will help, but I have no doubt that we will still have crank flex with the 3 main bearing setup.

Saltracer1, that's a darn good question! I was told, and under the impression that we were going to run coated bearings. I sent the cam bearings off to get coated, and was told that we would order coated SBC rod, and BBC mains, but I was not there when they were installed. I will be this time, and they will be coated.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: BoredAndStroked on November 25, 2012, 04:24:19 PM
Okay - been out in the shop . . . . pulling apart all the rod bearings and looking at things.  I believe I see a couple different things - but I'm going to ask the group what they see.   I'm not going to post my opinion as of yet - in the interest of not trying to prejudice any of yours!

I'm interested in what do you see:

1) What do the wear patterns tell you
2) What do the bearing colors tell you - set the back sides of the bearings. 

Info you might want to know:

a) Crankshaft Journal Wear:  there is some scoring (light) on the back sides of the rod journals (non-oil hole sides) - take a look at the prior post . . . you may be able to see it.  I can feel it with my finger nail on about 3 of the rod journals . . . BUT, some are in the middle and some are toward the rear (like #8 ).  The crank will probably need the rods ground.

b) Crank:  Billet Crower, 3 mains (remember, flathead!).  BBC main journals and SBC 2.1" rod journals.

c) Clearances:  Mains:  front and center .0035,  rear .004,  Rods:  .00225 to .0025.    ( Rods are billet Crower )

d) Oil System:  3 Stage Barnes dry sump - 2 suction, 1 pressure.

e) Oil Pressure:  It was set to 90 lbs - data logger shows it was consistent throughout our runs

f) Runs:  It has about 7 dyno runs, 8 or so 2 - 3 mile runs at Bonneville and 4 runs at the Ohio Mile . . . probably 3 or so hours of total run time.  We always warm up the engine prior to running.

g) Oil:  0W - 50W Mobile 1 Racing oil

Here are some pictures -- the order of the cylinders is the LEFT being #1, the RIGHT is #8.

Post what you see . . . and if you know any crankshaft and vintage engine gurus . . . ask them what they see . . .

Thanks!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: BoredAndStroked on November 25, 2012, 05:04:21 PM

Saltracer1, that's a darn good question! I was told, and under the impression that we were going to run coated bearings. I sent the cam bearings off to get coated, and was told that we would order coated SBC rod, and BBC mains, but I was not there when they were installed. I will be this time, and they will be coated.


I'm the guy who put the bearings in the FlatCad - this is something that we actually talked about at the time.   Clevite makes both a V-Series and an H-Series style of performance bearings.   All their factory coated bearings start with a H-Series bearing.   The H-Series was initially designed for high rpm, small journal Nascar style engines running tight bearing clearances - they are fairly 'hard' by nature.

The reason we used the V-Series (which are not available coated - except for a few top-fuel Hemi sizes) is that they are a lot softer than H-series and gentler on crankshafts - especially big strokers and blown motors.  A lot of professional builders and racers like the Vandervell style V-Series bearings as they are softer, have a lot of conformity and take some pounding out of the crank journals.   They have a lead-indium alloy - which gives them a very smooth surface finish and the conformity that many builders like.   I discussed both bearing options with Jeff Fowler (our machinist) - he recommended we go with V-Series for this application.

With the above said, we really don't know exactly what style of bearing, what clearances and what oil pressure this engine likes . . . how rigid is a 3-main block?, how much flex are we having (block and crank)?, how much oil pressure is optimal, etc..   I'm sure a whole host of opinions will surface - gosh knows that is nothing new!  :-D

Also, there are companies that will coat our bearings - with a variety of different styles of coatings . . . might be worth trying if they give us some more protection.  (Many say this is the case).  I believe that one of our sponsors 'FinishLine' can coat them - probably worth a try.

You might say we're learning as we go . . . like everybody else in the LSR community!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on November 25, 2012, 05:11:00 PM
Hmmm, all I can say is- We will have coated bearing this year.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Rex Schimmer on November 25, 2012, 06:18:22 PM
Bored and Stroked,
Show us a picture of the crank. You obviously had some "smegma" caught in the no.5 bearing that machined the "oil groove".

Rex
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: BoredAndStroked on November 25, 2012, 06:32:32 PM
Bored and Stroked,
Show us a picture of the crank. You obviously had some "smegma" caught in the no.5 bearing that machined the "oil groove".

Rex

Yep, some piece of crap went through the center main and the #5 rod bearing!   :-(

Here are some pictures of the rod journals that shows a bit of scoring on the back sides . . . journal to journal, they do vary a bit, but this is pretty representative.  Nothing extreme, but to me it shows contact/wiping and not enough oil film protection - now we need to know what to do about it.   With only a few hours on the setup, I'd expect to not have this . . . but my flathead experience is only blown Fords, so this baby is new to us all!

Thanks for looking - much appreciate your time!

Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: SPARKY on November 25, 2012, 08:47:13 PM
I went back and found the picts of the crank and I could not tell if it has cross drilled mains

WAY back in the day---I was a Ford guy---I was bound and determined that I could make a FE Ford turn 6500 and live long enough to beat a SBC---yeah I know but that is how youth is---one just does not know any better---

Long story short---I could not find anyone in Bryan TX who would grove a crank so that the rods oiled constantly ---so I just ran 2 uppers on the mains--Don Frisco had a cat--but it worked-----with all kinds of factory Ford 427 parts  I built a 361 cu in Ford that I would shift at 6500 and it would run over 160.
I would work on getting oil to those rods --CONSTANTLY --first


Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: saltracer1 on November 25, 2012, 10:07:53 PM
The reason I asked about coating the bearings is because a couple of years ago I messed up one rod bearing that was already coated by Swain and I had to replace it with a uncoated bearing. Upon disassembly the coated bearings looked pretty good and the single uncoated looked not so good. Now they are not the same brand and this is from a blown flathead Ford using Scat rods with the small journals (Buick V6 size I believe). The uncoated single rod bearing has Clevite 77 1 on it and the others are 2KL C811 AM (came from Speedway with the crank and rods).(http://i264.photobucket.com/albums/ii177/saltracer1/NEW%20Saltracer/rodbearings.jpg)
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: BoredAndStroked on November 26, 2012, 07:28:13 AM
The reason I asked about coating the bearings is because a couple of years ago I messed up one rod bearing that was already coated by Swain and I had to replace it with a uncoated bearing. Upon disassembly the coated bearings looked pretty good and the single uncoated looked not so good. Now they are not the same brand and this is from a blown flathead Ford using Scat rods with the small journals (Buick V6 size I believe). The uncoated single rod bearing has Clevite 77 1 on it and the others are 2KL C811 AM (came from Speedway with the crank and rods).(http://i264.photobucket.com/albums/ii177/saltracer1/NEW%20Saltracer/rodbearings.jpg)

You must be running the 2.00" rod journals - was the Clevite bearing a CB-610?  I believe the coated part number is a King Bearing part number - I'll check them out for coated bearings for this application.  I've used King Bearings in a number of race engines - they are quite similar to the V-Series in that they are very smooth and softer than many others.  Lots of racers swear by them.   What I will do is see what types of coated bearings they make and report back.

By the way, my assumption is that you're running a Merc style crankshaft in your car - cast iron?
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: BoredAndStroked on November 26, 2012, 07:29:27 AM
Sparky:  The crank is cross-drilled on the mains -- thanks for bringing that up!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: saltracer1 on November 26, 2012, 12:00:47 PM
The motor in question was running a complete assembly from Speedway with Scat crank and rods with Ross pistons.(4 1/4 x 3 3/8) I had the pistons and bearings coated by Swain Tech Coatings (swaintech.com). They even offer extra thick coatings for used pistons. Phil
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: saltracer1 on November 26, 2012, 12:08:04 PM
The part number on the one bearing is CB610-p. Phil
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: BoredAndStroked on November 26, 2012, 12:20:41 PM
The part number on the one bearing is CB610-p. Phil

That is what I figured . . . used on Buick's and some AMC products as well.   Wish that bearing was a bit wider!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Rex Schimmer on November 26, 2012, 01:22:00 PM
BnS and Buddy,
Looking at your bearing it appears that the rod cap side which only sees load when the piston is pulled down all look pretty good (excepting no. 5 of course) and because you are not turning big rpms this should be expected, now the bearings on the rod side that see the load of compression and combustion are the ones that look the most hammered. From the pics of the flathead bearings that Satlracer 1 showed it sure looks like some sort of coating, Parkerizing etc, would be called for you may even think about going to some additional oil pressure could help and after talking with Stu Van Dyne he suggest going to straight 50 wt oil, his experience is that multi vis oils will not work in blown motors.

Rex
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on November 26, 2012, 05:21:38 PM
Rex, it was great talking to you about Stu Van Dyne's theory! Ironically, as soon as I hung up , I received a conference call from Pops29, and his engine builder, Kenny Boyd, owner of Valley Balancing.

Kenny had just finished cleaning, magging, and psi checking the block-it came out fine! Kenny had the same assessment- go to coated bearings and heavier oil! He too, thought our clearances were fine-said we could even close them up some with the coated bearings.

Both of the above conversations caused me to pull over on the side of the road. I want to add H2O injection on the FlatCad, and had talked to a couple of dealers for Snow Performance Parts. Unfortunatly, they didn't want to take the time to listen to what I needed, but instead kept wanting to sell me a computer controller to run the injection system. That would be great, but it's not allowed in the Vintage class.

So, this morning I decided to make the 300 mile round trip drive to visit Snow Performance Parts. After explaining what I needed, they said no problem! One guy headed out to grab the setup I need, while the other guy explained it to me. It's very simple- a psi switch is activated at a preset psi (ours will be 7psi), and kicks the electric pump on, that supplies the injector. As boost falls below that preset number, the pump kicks off. I'll need to tap the intake for the boost hose fitting, and the injector hat for the H2O injector, and do a little plumbing and wiring.

I'm real curious to see how this effects our intake temps, and HP, on the dyno!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: desotoman on November 26, 2012, 07:43:41 PM


g) Oil:  0W - 50W Mobile 1 Racing oil



Dale,

IMO throw away that  weight oil. I run the same clearances you do on the rods and mains, and even a cross drilled crank in a 6-71 Blown 454 since 1972, but I run 20-50 weight Castrol mineral oil. Motor was in a boat that did lots of lake racing. When I rebuilt it after 200 hours of run time the bearings looked like new.

I like Mobil 1, but not 0 or 10 W for anything blown. JMO.

Tom G.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: SPARKY on November 26, 2012, 11:25:54 PM
I like Mobile 1  I had bad experience with the lighter stuff
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on November 30, 2012, 02:47:43 PM
WZ JUNK  does some cool stuff with fiberglass! :cheers:


He's been working on the aero mods for us. Here are the fender mod mockups, and the plug he just finished for the air inlet!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on December 05, 2012, 07:10:42 AM
From Randy Jackson Last night:

Well folks progress is happenin on the flatcad. No more door hinges or handles sticking out slowing this thing down and here are a couple pics of progress i have a bit more work to do but the hinges are installed and the the doors open shut and hopefully if all goes well this evening the custom push button handles will be installed later tonight stay tuned big progress is right around the corner.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Stan Back on December 05, 2012, 07:47:46 PM
Buddy --

Let me know how much those hinges are worth.  That may be my chance to regain the record -- I'm only 20 MPH short after having it four years ago.

Stan
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on December 06, 2012, 11:58:53 AM
Buddy --

Let me know how much those hinges are worth.  That may be my chance to regain the record -- I'm only 20 MPH short after having it four years ago.

Stan

Probably won't make much difference, but it makes me feel like we're doing everything we can! :-D


From WZ JUNK:

I am making progress but it is slow. See attached picture. I have had various little problems that had to be solved. The plug for the air intake is done and I made an indexing rotisserie so that I could rotate and hold the plug while I apply the gel coat and then lay up the fiberglass. I will leave it on the plug for a few days before I remove the plug. We should have a part for a trial fit next week.

Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Roseville Carl on December 07, 2012, 09:00:37 PM
Lookin great Buddy :-D
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: BoredAndStroked on December 09, 2012, 09:25:41 PM
Design Work - Crankshaft Girdle and Main Caps - Version 2:

Buddy, Don and I have been chatting about making some updates to the crankshaft girdle - to make it even stronger.   I've made major updates to the middle cap (to a splayed design) and widened the front as well.  Also, there will be big dowel pins between the tops of the caps and into the bottom of the girdle and there will be cap alignment dowel pins put into the block to ensure that nothing can move.   In addition, the caps will now have big 1/2 NF bolts to torque them to the girdle - we only had a 'crush fit' in the last design.  All of this is to make things stronger and even more rigid.

I do not believe that we experienced any 'cap walk' with the previous design, but we're going to push it harder next year and we decided to add as much lower end strength as we can muster.

Here are some pictures of the new design . . . now Don gets to 'make some chips' and whack some new caps out of steel.

Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on December 11, 2012, 10:58:08 AM
I've been working with Cometic to get custom gaskets for The FlatCad, as I really dislike the copper gaskets.

We received the prototypes- They need a little refining, but this should help us out!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on December 14, 2012, 10:15:05 AM
From WZ JUNK:

Attached is a picture of the air intake.  This one is a reject as the gel coat reacted with the covering I had on the plug mold.  I will actually use this part as the new plug mold.  This part is a little long but I will be trimming it down when I make the outside of the scoop.  It will probably start just directly above the grille.  A little progress and a setback.
 
  :cheers:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: jimmy six on December 14, 2012, 10:28:54 AM
I had a similar one on my 40 Chev when I ran it in the 70's. Always worked.

Not positive on this but on a roadster anything infront of the grille shell could not taper on the outside. Inside the scoop it didn't matter. A few guys had to do a little revamping after they had spent time with their scoop as they missed that in the rules definition. The taper only comes into effect on what sticks out infront and not on top. As I remember it was limited to 12" also.....Looks Good....JD
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on December 14, 2012, 10:45:32 AM
JD,

Thanks for the advice! The rules say "shall not extend more than 12 in, and shall not taper, except in classes where forward streamling is allowed."

We are only going to run this setup in comp coupe, where forward streamlining is allowed, so we should be perfectly legal.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: NathanStewart on December 14, 2012, 10:01:21 PM
I've been working with Cometic to get custom gaskets for The FlatCad, as I really dislike the copper gaskets.

We received the prototypes- They need a little refining, but this should help us out!


very interesting to see cometic make these gaskets.  i had heard for years that they could only do round.  oh, that 0w oil doesn't sound bueno to me.  we run straight 50wt racing oil and get 60 psi of oil pressure.  100+ psi of oil pressure sounds very high.  lots of pressure can mean restricted flow.   
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on December 20, 2012, 02:04:31 PM
From Pops29!

Ok Here we go !!! The machining on the block is complete and I will be machining the new bearing caps next. We machined a wider surface to fit the new main caps, the new caps will have a wider base and added dowel pin holes for stability . On the front main we machined the block at the pan rail the same width as the bottom mounting surface for a good tap fit top and bottom

now the center cap --- the design will consist of cutting 2 notches at the pan rail to fit the ears on the full width center cap and to sandwich them between the girdle and block along with doweling in the block and to the girdle. see rough sketch


Don, FANTASTIC work, as always!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Captthundarr on December 20, 2012, 06:08:36 PM
I love this stuff :-D
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Jack Gifford on December 21, 2012, 01:20:11 AM
... We machined a wider surface to fit the new main caps...
We would all like to be able to do that... but where did the extra material come from to machine? :?
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Peter Jack on December 21, 2012, 01:25:29 AM
To the outside of each bolt hole by looking at the pictures. He said wider. That's from side to side.

Pete
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Tman on December 21, 2012, 10:29:44 AM
I like Don's notes and drawing, handwritten on legal paper.  :cheers:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Freud on December 21, 2012, 03:07:21 PM
I like anyone with balls enough to update a flat Cad to use a racing engine.

Go Boy.

FREUD
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Roseville Carl on December 21, 2012, 05:40:48 PM
I like Dons work period.................. :cheers:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Roseville Carl on December 21, 2012, 05:41:55 PM
Actually I like anyone who doesn't use their head for just a hat rack.........
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on December 21, 2012, 06:22:03 PM
Actually I like anyone who doesn't use their head for just a hat rack.........

 :cheers: :cheers:


I've been crunching numbers, to see where we need to be HP wise, to get to 200 MPH- the results ain't pretty!

Based on last years numbers, we'll need between 800-900 HP. Unfortunately, we will not get there on gas! So, we'll need to switch to a fuel class, and maybe even add a little nitro!

The HP numbers don't reflect any aero changes we make, so 750-800 HP may suffice- Still, we won't get there on gas.

Hell, the engine MAY not survive the dyno at that HP level. I want to take the chance, though! We knew going in 200 was a stretch, so if we don't take a few chances, 200 mph will NEVER happen!

We need to change to modified class, instead of Vintage- 200 mph in XXO/BFCC is a red hat. in Vintage XXO/BVFCC, we would have to average 209.986 mph.

The good thing is, fuel is easier to get an engine to survive on. In addition, we can add engine management- a crank trigger, boost referenced MSD box, and an electronic ignition. Dale, I want to add the crank trigger when we reassemble the engine.

We'll still run our vintage classes. When we go to the dyno, we'll setup the engine for both tunes. We'll probably make a little less HP on gas this year, as the cam will be ground for fuel. 800 HP on fuel or bust!

Merry Christmas and Happy New Year!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: saltwheels262 on December 21, 2012, 07:13:51 PM
I like nitro engines.
your motor held together at Ohio on gas.
would like to see you do the same on fuel.

bf
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: dw230 on December 21, 2012, 11:17:08 PM
OK, now that we have passed 12/21/12 - here is an idea.

If someone with a V12 Caddie - XXO/ .... wants to go 200+ why not take advantage of a  streamliner/lakester chassis? Easy to work on and really close to 200 with 450HP.

There are plenty of chassis available with a crew looking for the "good" engine. This is where I would start if I was not lready involved.

My personal goal would be 200+. regardless of chassis.

300+ is the next step for me(?)

DW
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: jimmy six on December 21, 2012, 11:55:32 PM
DW...that's where I would go................JD
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Stainless1 on December 22, 2012, 12:18:59 PM
Everyone has to walk their own path Dan, remember Teague's story... the game is the same, only the numbers have changed.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on December 22, 2012, 04:32:26 PM
OK, now that we have passed 12/21/12 - here is an idea.

If someone with a V12 Caddie - XXO/ .... wants to go 200+ why not take advantage of a  streamliner/lakester chassis? Easy to work on and really close to 200 with 450HP.

There are plenty of chassis available with a crew looking for the "good" engine. This is where I would start if I was not lready involved.

My personal goal would be 200+. regardless of chassis.

300+ is the next step for me(?)

DW


Dan, we could go that route, but won't.

So far, we have set 2 records at Bonneville, both in 'open' classes. While I'm proud of those records, I feel the only thing we've proven is that we can get this old flathead to run 166 MPH.

I believe that in order to really feel we've accomplished something, we have to prove to OURSELVES, that we can run with the 'big boys'. So, this year, we'll run on records set by the big boys- Hart, Salt Cat, and BMR racing.

At the end of the year, we'll all know if we've 'proven' ourselves! I understand that not everyone will agree with this decision, nor understand it, but I don't care - I understand it!

We will switch to special construction, once we've proven ourselves, and people want this engine in their car, but it won't be to run 200 MPH. Jimmy Stevens and Ron Main have both ran well over 300+ MPH with flathead Fords-I won't settle for less out of the FlatCad!

We're not here for the quick records, we're here for the hard records. Therefore, we're here for the duration.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: GH on December 22, 2012, 04:53:35 PM
Buddy, I wouldn't  call me one of the BIG BOYS. We showed up with a big Buick and lucked into some open records. But we sure had a lot of fun doing it.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Dr Goggles on December 22, 2012, 05:52:41 PM
Actually I like anyone who doesn't use their head for just a hat rack.........

Ha!

I like that.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: SPARKY on December 22, 2012, 10:35:56 PM
BUT,  But, but--- some of us like to use our heads for a ---HAT rack  :-D
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on December 27, 2012, 12:20:14 PM
Aero mods are coming!

From Randy: Well folks hope everyone had a good christmas just thought i would do a little update on progress. I fitted the new hood top so john (wzjunk) can get the new hood scoop fitted to the car. I will be taking it to him over the weekend sometime.

..and from WZ JUNK:I am laying up some of the flat panels today. Hardest part is keeping the shop warm enough to cure the fiberglass.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Glen on December 27, 2012, 01:35:00 PM
Buddy, looking good. :cheers:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on January 02, 2013, 03:31:59 PM
Well, While I explore ways to blow the engine up, others are actually making progress!

From WZ JUNK:

Attached is a picture of the first mock up for the outside of the scoop.  I will be looking at the shape some.
 
Most of the fabrication of the air intake is done.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on January 03, 2013, 07:33:24 PM
Gotta give WZ JUNK props- He's a helluva craftsman!

From WZ JUNK:

Attached is a picture of the two fiberglass panels I made by laying up resin and fiberglass on a flat sheet of plate glass.  I will cut the flat areas of the scoop enclosure out of these panels.  That starts tomorrow.

Attached picture is of the completed air duct.  Note the rubber collar near the Enderle injector.  The air duct is in two pieces under this flexible rubber collar.  This will allow the engine or the body of the car to flex or move some without stressing the hood and scoop.
 
Most of the green tape you see in this picture is my way of making a flexible tape measure so that I can keep everything straight or aligned as I build the enclosure for the air intake.

 
John
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: fordboy628 on January 04, 2013, 07:57:45 AM
38Flattie,

Currently reading through your build diary for nuggets of info, I'm up to page 91.   I am very impressed by the quality of the work, the dedication of you, your crew and the suppliers/fabricators/etc, the amount of forethought, testing & machining, AND, the outstanding results you all have achieved.  Bravo to all!!!

Will wait to request any info until I've finished your complete build diary.

Also, if gear split ratio graphs of engine rpm Vs. mph are of any help, I can create graphs that show the rpm drops between gear shifts.  I have found this type of information to be useful.   Inputs are for tire dia, diff ratio, diff split gears (quick change), trans ratios, and engine rpm range.

Congrats on this special project & Build Diary.
 :cheers: :cheers: :cheers:
Fordboy
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: fordboy628 on January 04, 2013, 12:36:26 PM
38Flattie, Bored & Stroked,

How is the crank drilled to feed oil to the rod bearings?  That is, which main journal feeds which rods?  Is the crank crossdrilled?  If not, consider fully grooved main bearings, so that a constant supply of oil & cooling reaches the rod bearings.  If the center main feeds 4 rods by itself, consider enlarging the center main bearing oil feed passages, as was done on Milwaukee Midget's 3 main BMC engine.  This increases the oil flow to the main bearing which feeds 2 con-rods Vs. the others which feed only one rod.  See his build diary for details.
 :cheers:
Fordboy
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: manta22 on January 04, 2013, 01:52:21 PM
Crossdrilling the crank is a good way to create a fatigue failure. Grooved main bearings are FAR better if you want the engine to live.

Regards, Neil  Tucson, AZ
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: fordboy628 on January 04, 2013, 03:34:07 PM
Crossdrilling the crank is a good way to create a fatigue failure. Grooved main bearings are FAR better if you want the engine to live.

Regards, Neil  Tucson, AZ

I agree.  IMHO, crossdrilling is not a good idea for a crank that probably has high(ish) bend loadings.

After going back to look at the jpegs of the rod bearings, I am convinced that the combination of the wear & the heat discoloration point to an inadequate amount of oil flow to the rod bearings.  Notice that the majority of the wear & discoloration is on the rods fed by the center main and the #7, which is further from the rear main than the #8 rod.  Also consider that the oil pressure in the gallery (& @ the gauge) has NOTHING to do with the amount of the oil flowing to the bearings.   More bearings fed = more flow required......

Many racing engine designers have gone away from the idea that high pressure/high flow is needed to have bearings survive, ie: the Cosworth DFV.  In original spec it required 90/100 psi of high flow oil pressure.  In generation IV (I think...) alternative crank drillings allowed the oil pressure to be reduced to 55/60 psi & retain high flow.  This netted a bhp gain as the power to drive the oil pump was reduced & then that power made it to the flywheel........   Nascar V-8's typically run 50/60 psi high flow oil systems which also results in a net bhp gain.......

I'm not saying you should reduce the pressure just yet.  Consider thoughtful mods to increase oil flow where needed, if possible.  Maintain the oil pressure you had, and then determine if there has been any improvement in the bearing wear and coloration at the next teardown.
 :cheers:
Fordboy
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on January 05, 2013, 12:58:43 PM
Fordboy, the mains are crossed drilled now, but I don't remember which ones feed what rods. I'll have the crank back in my hands next week, and I'll check it out. Dale may weigh in here, as he now has the crank.

Last year we ram Mobile one racing 0W-50 oil. I've been convinced that it is not the right oil for this application. We'll be running a straight 50w synthetic oil this year.

In addition, Barnes is going to add another suction and pressure stage to the dry sump. This will be dedicated to the piston oilers and lifters.

I believe we will 'half shell' the bearings this year, to aid in both oiling, and clearances.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: fordboy628 on January 07, 2013, 12:47:01 PM
38flattie, bored&stroked,

Sent you an info request & some preliminary speadsheet analysis of your dyno sheets.  Look over what I sent & figure out what questions you have.   I have a couple more questions.

1/  What std is dyno data corrected to?  SAE J1349?  STP (SAE J607)?
2/  Boost psi is on top of what atmospheric pressure?  Is this corrected?
 :cheers:
Fordboy
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: fordboy628 on January 08, 2013, 08:43:23 AM
38flattie, bored&stroked,

Are there any clear close-up photos of the oil drillings in the crankshaft you can post up?  What I want to see is the 'phasing' of the oil flow with respect to each cylinder's individual TDC.  How the delivery of the oil supply is 'phased' determines if you must run relatively high pressure or if you are able to run relatively low pressure.

In "low pressure" cranks, the oil delivery hole for a particular con-rod/cylinder, is 'phased' to 'lead' TDC by 50/60 crank degrees.  This allows the oil film to be 'distributed' onto the crankpin prior to the highest load period, (20/25 degrees BTDC to 50/60 degrees ATDC) during the ignition & combustion phases.  There are SAE papers about this subject, although I have not read them in a while.  Oil delivery to the con-rod bearings, with crankpins drilled @ either TDC or 90 degrees BTDC, was judged to be less effective, at lower pressures.  Keith Duckworth came to the same conclusion.  There have been some other technical articles on this subject over the years penned by, I think, Smokey Yunick & Bill Jenkins.   So the bottom line is: how the crank is drilled dictates how much oil pressure you have to run.

If you guys ever have to order a replacement crank or build up another complete engine, you may want to consider this effect.
 :cheers:
Fordboy
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on January 08, 2013, 01:10:25 PM


FB, thanks for all the great info. I'll review the spreadsheet when I get out of this hellhole they call work! I'll have the crank back in my hands Thursday night. I'll take a series of pics and post them.



Pops29 has been busy! Great job Don!

From Pops29:

Here is an update on the new main caps.
(both mains) This shows the increase width on the new front cap compared to last years!

(maching center, machining center 1) Here is the new center Cap being machined -- big difference

(centers) here it is with the old cap over-layed on top of the new design

next step is to drill the bolt holes and alignment pins, then set up and do the final fit grind and off to Boyd enterprises for the line bore and valve grind

Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on January 08, 2013, 01:15:44 PM
 and here are the center mains mocked up in the block, for comparison, without the girdle.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Glen on January 08, 2013, 02:08:06 PM
Buddy, nice machine work. :cheers:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Captthundarr on January 08, 2013, 02:12:52 PM
Happy 100, those should keep thing in place for a while.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on January 08, 2013, 03:05:18 PM
Thanks guys- we're doing what we can!

On another note, Russ Meeks, Finish Line Coatings, has the valves coated, and is shipping them to Don. Bearings are headed to Russ to be coated, and the new head chambers will follow.

PIstons were coated last year, and still look great!

I really think these coatings help our cause!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on January 08, 2013, 03:21:24 PM
Happy 100 pages of Build Diary!!

Celebrate your accomplishment.
 :cheers: :cheers: :cheers:
Fordboy

Haha!

Just what I always wanted to be when I grew up- an accomplished blogger! :-o :roll: :-D
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: DND on January 08, 2013, 07:52:41 PM
Hi 38'

Not up on flat cads, what bolts to those bolt bose's at the bottom of the barrel.

New caps looking very nice!!

Since they are alum do you have more bearing chrush to make up for more expansion then they get hot?

Me and my buddy put a MT alum rod under hot running water one time and it grew 2 thou!!

Don
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on January 08, 2013, 08:51:22 PM
Hi 38'

Not up on flat cads, what bolts to those bolt bose's at the bottom of the barrel.

New caps looking very nice!!

Since they are alum do you have more bearing chrush to make up for more expansion then they get hot?

Me and my buddy put a MT alum rod under hot running water one time and it grew 2 thou!!

Don

Don, even though the mains appear to be aluminum in they pics, they are really billet steel. The bolts are 9/16, and there will also be alignment dowels on both the top and bottom of the mains, as will as in the block and girdle.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Jack Gifford on January 09, 2013, 12:50:16 AM
... put a MT alum rod under hot running water one time and it grew 2 thou...
Your "running water" isn't as hot as mine, since you only raised the rod temperature approximately 74 degrees F (assuming rod big end of 2.250"). Practically every wrought aluminum alloy (from 2014 of ancient M/T rods to latest proprietary alloys of BME, GRP, etc. rods) has a temperature coefficient of 1.2 x 10^(-5)inches/inch/degree F. +/- ~5%.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Milwaukee Midget on January 10, 2013, 09:15:06 AM
(http://i361.photobucket.com/albums/oo58/milwaukeemidget/fladcad.jpg)

All yours . . .
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Rex Schimmer on January 10, 2013, 12:55:04 PM
fordboy,
What a delight to read your posts, I learn new things from every one of them. Keep them coming!! I agree with your thinking that the initial dyno runs show more potential hp above the max tested rpm as the testing does not appear to have found the actual peak horse power of this engine.

Rex
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Milwaukee Midget on January 10, 2013, 06:53:44 PM
fordboy,
What a delight to read your posts, I learn new things from every one of them. Keep them coming!!

He's a delight to drink with, too!

 :cheers:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on January 14, 2013, 09:05:07 AM
FordBoy, Dale should be sending you the info you requested! Thank you for all the info! I'm very curious to see what the mechanical/theoretical says is possible.

Chris, thanks for helping get that info posted!

I've just returned home, from a very good trip:

I caught up with Dale, Amy, and crew chief Mark. We had a nice dinner (translates into big drunk), and then made plans to go to Ross Racing Engines. The next morning, we dropped the crank off, for a .010 grind and nitrade on the rod journals, and a polish on the mains. We also dropped off the rods, to be checked for straightness and stretch.

I then headed over to robfrey's, to see the NACA 66 Special- what a classy build! Rob, thanks again for the hospitality!

Don is finishing up the main caps and girdle, and later this week the block will head to Boyd Enterprises, for a line bore and a valve job.

Tomorrow, I'm heading out to see Randy and John K.


We're getting closer!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: lsrjunkie on January 14, 2013, 11:19:07 AM
38, Just spent all weekend reading this thread! And I must say, WOW!! Love the car, absolutely love that mill! The entire build is a thing of beauty and the fact that it's fast makes it even cooler! Hope to see ya on the salt in August! Keep up the good work!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on January 14, 2013, 08:15:14 PM
Thanks Lsrjunkie-see you on the salt! :cheers:

More progress, this time on the rear diff and tranny dry sump! The motor is a 1/2HP, 12V motor, and the pump is a Weaver 4 stage. Both the tranny and diff will recieve 2 stages- 1 sump and 1 pressure.

Yea, I know it's a different approach-that's OK! :-D

From Don:

Buddy needed a pump for the rearend oil,, so he supplied me with a 12 motor and a pump and here is what I did. The mounting plate is machined out of 6061 alum. to bolt to the c face on the motor
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Jack Gifford on January 15, 2013, 12:55:54 AM
Why such a powerful motor? [1/2 HP means close to 40 amps @ 12v]. Is it due to a requirement to route oil under pressure directly into bearings?
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: manta22 on January 15, 2013, 11:47:00 AM
I agree with Jack-- if this pump is only used to circulate oil to an external oil cooler, that motor and pump is serious overkill. Circle track racers use a mechanical pump that is belt-driven off a pulley on the diff yoke.

Regards, Neil  Tucson, AZ
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on January 15, 2013, 11:54:38 AM
Gentlemen, this setup is not for an oil cooler!

Two stages will be used to dry sump the tranny, and two stages will dry sump the rear diff. It may appear a little big HP wise at first glance, but I believe it's sized right for the pump. It will have a battery dedicated to powering it.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Rex Schimmer on January 15, 2013, 09:35:21 PM
 The great thing about electric motors is that as long as you have sufficient amperage and voltage they will make alot more power than they are rated for also if their load is less than they are rated for the will only make enough power to carry the load. So with Buddy's dif/tranny pump the 1/2 hp will probably work great. Plus since it is a DC motor he should be able to regulate the pump speed easily. Buddy are you going to run the oil through a filter before going to the diff or trans? Like wise are you planning to run something different for lube than the standard 90 or 140 wt? Are you also planning some sort of spray bar to lube the gear lash and also the bearings?

Rex
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on January 15, 2013, 09:48:48 PM

The filter system will be similar to the engine setup-there will be 3 micron filters on the return side, one each for the diff and tranny.

Yes, there will be spay bars, for cooling purposes as much as lubrication. I realize it's not a conventional setup, but I'm confident it will work.

I'm still contemplating the oil to use. I have a a bunch of the Mobile 1 Racing 0W-50 oil, I'm tempted to try. I've also thought about a straight 40W.


Any suggestions?
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: SPARKY on January 15, 2013, 11:09:38 PM
use the synthetic you have with a bottle of ProBlend gear additive  ProBlend is what GM used on the Corvette trans axels..
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on January 17, 2013, 12:10:19 AM


Randy and I just got back from John K's. John is a fiberglass genius! The snorkel and hood scoop are all but done! :cheers:


Next up, an 8" narrower front axle.....
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: manta22 on January 17, 2013, 12:38:31 AM
Nice looking snorkel & hood scoop but have you considered how far forward it moves your center of pressure?

Regards, Neil  Tucson, AZ
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: WZ JUNK on January 17, 2013, 09:09:10 AM
Nice looking snorkel & hood scoop but have you considered how far forward it moves your center of pressure?

Regards, Neil  Tucson, AZ

Yes, we talked about that last night.  There is no way to do something like this without changing the center of pressure and it will now be forward of what it was previously.  However, we are looking at adding a spoiler on the rear with large spill plates which should help by moving the center of pressure rearward again.  I am hoping it will be more than a trade off.

John
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on January 17, 2013, 09:42:24 AM
Neil, Here's a quick mock up from last night.

We did decide to move thing further 'outboard', and there will be more on this later.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: manta22 on January 17, 2013, 11:00:28 AM
Before you decide, it might be instructive to do some wool tuft testing to see where the airflow is that will make the spill plates more effective. Moving them out to the rear fenders looks like it would give you cleaner air flow. Maybe that's not legal-- I haven't read the rule book for your class.

Regards, Neil  Tucson, AZ
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on January 17, 2013, 01:09:33 PM
Thanks Fordboy!

Yes, I believe we had every bit of 10% tire spin, one we approached 160 MPH. These cars have a large area under the trunk, that the car gets a tremendous amount of lift there. This is one of the things that we are working on for the comp coupe classes- a better bellypan to help os out, and better aero above, including a way to create some down force.

Thanks for the charts! At the moment, I plan on 6000 RPM as the upper limit. We'll test and tune on the dyno, with that being or max target.I think we'll be running 2.30 gears to try and hold the RPM's down a little, but will do what's necessary. :-D

Of course, everyone knows how this works- if we're just a couple of MPH off of our target, that minimum will be raised to try and achieve the goals! LOL!

I'll pass this info on to Dema and John! :cheers:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on January 17, 2013, 01:46:51 PM
Fordboy, I'm waiting for Dale to get you the weights. I have the rod and piston weights, but I do not have the piston pin and keeper weights.

Thanks again  for all of your input!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on January 17, 2013, 04:31:55 PM
38flattie,

Attached is a .pdf with gearing charts for the FlatCad.  There are 2 files which reflect the gearing as used in 2012, these 2 files show correction factors for the speed calculated Vs. the speed attained.   Is it possible that you have as much as ~10% wheelspin/traction loss?

There are also 6 additional gear charts that have various changes such as rpm limit raised, diff ratio change, tire dia change, close ratio trans change, etc.

Within these scenarios it appears that the maximum rpm drop is ~ 1900rpm, close ratio OR wide ratio, dependent on the rpm limit used.   It appears that the rpm drop could be as narrow as ~ 1600rpm, with the close ratio gearbox.

It would seem sensible then to modify/tune the engine for a workable powerband of ~ 1600rpm min. to ~ 2000rpm max.   I would attempt to achieve this by modifying the aspect ratio of the torque curve.   I would make changes that would rock/raise the curve from peak torque to peak bhp.   Peak bhp definitely needs to be defined, OR, an rpm limit based on parts stresses needs to be defined........     and the engine modified/tuned respectively.

I am sure you will have some questions after looking over the charts.   I am not so concerned about the predicted top speeds at this point in time, if only from the traction standpoint.   I think that is important to have defined the minimum useable rpm range, in order to properly modify/tune the engine.   More useable rpm range is better of course, as in flatter curves.   But the fact of life is that as an engine's output goes up in bhp/cubic inch, the useable rpm range becomes more narrow.............

Edit:  If you want to investigate other permutations, it is pretty easy to plug other numbers in to the program to see what rpm drops it spits out.  I used the info off your build diary.  Posts #1257, #1349 and some information you sent in a pm.  Let me know if you want me to run the 2.32/1.69/1.29/1.00 setup, but the drops will be in between the 2 other setups.
 :cheers:
Fordboy

Fordboy,

Can you run the numbers with 5500 RPM, and 6000 RPM, 2.30 gears and 2.40 gears, and 28" and 29" tires? I think these combos and RPM's will cover our needs in all of the classes we will run.

Thanks!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: saltwheels262 on January 17, 2013, 07:29:34 PM
38,
Wow- to the additions on the body.

bf
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on January 21, 2013, 06:04:33 PM
Fordboy, we learned our lesson about running against the rev limiter!

When I mentioned how we had run against it, Rex gave me a pretty good run down as to we we shouldn't- much the same as you're pointing out.

We won't make that mistake again!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on January 24, 2013, 11:52:17 AM


Well, If the hood scoop caused a ruckus, check out what the wing and spill plates will look like! :evil:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Freud on January 24, 2013, 11:56:48 AM
You must not be working on it. The floor is too clean.

Reminds me of Jim Humes shop.

FREUD
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: dw230 on January 24, 2013, 12:09:40 PM
Not a wing, spoiler by SCTA terminology. It looks OK to me, where is the precieved issue?

Wing has to stand off the body.

DW
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on January 24, 2013, 12:26:11 PM
Oops! You're right, Dan-Spoiler!

No legality issues, Dan. I was referring to the fugly part! :-D
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Tman on January 24, 2013, 12:30:03 PM
Not a wing, spoiler by SCTA terminology. It looks OK to me, where is the precieved issue?

Wing has to stand off the body.

DW

Looks like it does both? Woiler? Sping?
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Rex Schimmer on January 24, 2013, 12:58:30 PM
Some is good and more is better and to much is just right!! Looks great Buddy, should get that aero center back to balance the scoop and keep her straight at 200+!
Rex
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Captthundarr on January 24, 2013, 01:55:44 PM
Yup, I think it nicely compliments the shnoz you stuck on the front. :cheers:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Milwaukee Midget on January 24, 2013, 03:02:59 PM
I'm glad you're happy with it -
I'm certain it will work well -
But gosh darn it, the lines on this car are just so sweet - especially the chop - I hate to see it have to go in this direction. 
:cry:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: WZ JUNK on January 24, 2013, 06:05:28 PM
Not a wing, spoiler by SCTA terminology. It looks OK to me, where is the precieved issue?

Wing has to stand off the body.

DW

Dan, when I designed the spoiler, I studied the rules, and I think it is okay, but I have a question.  There is an open area at the front of the spoiler between the spoiler and the spill plate.  I can not find anything in the rule book that says this area has to be filled in.  Do you have any thoughts?  I am going to look more at other designs tonight.

John
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: dw230 on January 24, 2013, 08:40:12 PM
John,

The area you describe must be filled in. In SCTA terminology a spoiler has one aero surface, wing has two or more. See page 47, the sentence just above fig. 9.

Because this is a Comp Coupe you are allowed a wing. The bottom of the wing must be a min. of 6" above the high point of the body. See page 66.

DW

Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on January 24, 2013, 09:00:51 PM
Dan, I just sent you an email on this. Maybe John and I are reading this incorrectly-surprise, huh?

John designed this to the Implementation Approach One, in 4.CC.8.

The sentence says "The design is allowed to fill in the horizontal gap between the leading edge of the spoiler and the body with a plate no farther forward than the centerline of the rear axle."

Are we to take it then, that we must fill in the horizontal gap?
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Seldom Seen Slim on January 24, 2013, 09:06:40 PM
Website Head Handlebar Holder's comment:

Remember that this is an unofficial forum.  Dan is welcome, of course, to offer his observations and help and such -- but a proper "ruling" must be sought and received through SCTA channels.  

We on the Forum are, of course, very interested in how this wing/spoiler situation plays out -- but don't take Dan's comments here as the final word.

Right, Dan?

Edit:  I forgot a letter.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on January 24, 2013, 09:15:07 PM
SSS, I agree with you, and understand that.

My first sentence was "Dan, I just sent you an email on this." That email also was CC'd to the other gentlemen looking at the hood issue, and to John K.

Obviously, we are still learning the rules. I only ask these questions here,so that others that are building and learning can benefit from our misinterpretations and mistakes.



Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: jl222 on January 24, 2013, 10:36:25 PM
Not a wing, spoiler by SCTA terminology. It looks OK to me, where is the precieved issue?

Wing has to stand off the body.

DW

Dan, when I designed the spoiler, I studied the rules, and I think it is okay, but I have a question.  There is an open area at the front of the spoiler between the spoiler and the spill plate.  I can not find anything in the rule book that says this area has to be filled in.  Do you have any thoughts?  I am going to look more at other designs tonight.

John

  What worries me about the design, is high pressure air from the end gaps getting under the spoiler and taking
away the low pressure and the resulting downforce, netting zero effect for your efforts.

 The 6'' above roofline rule for wings should be punted out with Superbowl effort and rewritten to say [ wings MAY be 6'' above roofline] so wings can be mounted in usual ways.

         JL222
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: jl222 on January 24, 2013, 11:02:11 PM


Well, If the hood scoop caused a ruckus, check out what the wing and spill plates will look like! :evil:


 Buddy...pita now, but if you moved the spoiler down and back you could fill in the spoiler to the fenders with more aero. This would also give more downforce leverage on rear tires. Hey, more traction and you might be able to take weight out :-D

         JL222
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: WZ JUNK on January 25, 2013, 09:38:28 AM
Website Head Handlebar Holder's comment:

Remember that this is an unofficial forum.  Dan is welcome, of course, to offer his observations and help and such -- but a proper "ruling" must be sought and received through SCTA channels.  

We on the Forum are, of course, very interested in how this wing/spoiler situation plays out -- but don't take Dan's comments here as the final word.

Right, Dan?

Edit:  I forgot a letter.

You are correct and I understand.  In my haste to work through this problem I approached it wrong.  I am looking for some input as to the possibility of an approach that might be legal.  I do not want to put Dan in an awkward position.

The nature of running a vehicle for land speed records makes you think about unusual applications.  Sometimes I get caught up in some crazy ideas.  I need somebody around to slap me back to reality.

John
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on January 25, 2013, 09:57:48 AM
Ok, since we started this here, I'm going to continue on with the progress.

Dan, I just sent you gents another email, that basically asks that if the first design is deemed illegal, will this mod make it a legal spoiler?

Of course, we welcome all opinions and ideas, as we are scrambling to get this done!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: dw230 on January 25, 2013, 11:00:08 AM
Got the email and responded. The gap must be filled, only a single surface can be presented to the air with a spoiler design.

JL222 - the Comp Coupe wing rules are written as presented by Tom Burkland and George Fields. If you think the 6" above the top of the body is wrong argue with them.

I am off the the GNRS and any posting will be delayed for a couple of days.

DW
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on January 25, 2013, 11:05:13 AM
Thanks Dan-have fun at GNRS!

So, our spoiler issues are resolved, and we'll get on with modifying the car. :-D
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: DND on January 25, 2013, 11:17:16 AM
I don't understand you are making the car more slippery, drip rails- door hinges etc but will create more drag with those new vertical filler pcs. Looks like a big air trap to me plus maybe mess up the airflow over your new rear spoiler

Why can't you bring that flat alum forward to the end of the body belt line bumps, and have a little longer side plates?

Don
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on January 25, 2013, 11:57:37 AM
I don't understand you are making the car more slippery, drip rails- door hinges etc but will create more drag with those new vertical filler pcs. Looks like a big air trap to me plus maybe mess up the airflow over your new rear spoiler

Why can't you bring that flat alum forward to the end of the body belt line bumps, and have a little longer side plates?

Don

Don,

The only thing stopping us are the rules!

From 4,CC.8- It can extend no further forward than the rear axle centerline.Spill plates are allowed to be no more than 8 in. above and below the forward mounted position of the spoiler when the spoiler is parallel with the ground and extend no more than 2 in. past the end of the spoiler.

Acually, we are more interested in spill plates than the spoiler. Don't get me wrong, we want the effect of the spoiler, but our primary reason for doing this is the spill plates. Look at the other '37/38's that run out there-these cars have a long area under the trunk, ans a short wheelbase, therefore they like to spin!

If anyone has an idea to improve this design, that is legal, we are all ears!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: jl222 on January 25, 2013, 01:42:33 PM
Got the email and responded. The gap must be filled, only a single surface can be presented to the air with a spoiler design.

JL222 - the Comp Coupe wing rules are written as presented by Tom Burkland and George Fields. If you think the 6" above the top of the body is wrong argue with them.

I am off the the GNRS and any posting will be delayed for a couple of days.

DW

  The rule fits George's coupe just great.

  Why in the hell, anyone would think it would fit other cars needs an explanation from Tom and George and anyone who voted for it.

         JL222
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Jon on January 25, 2013, 01:47:44 PM
Can you narrow it up a bit so the bottom of the spill plates touch the side of the body to make the vertical face smaller without effecting their performance much?

jon
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: jl222 on January 25, 2013, 02:08:57 PM
Can you narrow it up a bit so the bottom of the spill plates touch the side of the body to make the vertical face smaller without effecting their performance much?

jon

  That would be the easy way and it would actually work. But lowering it down and back would give more area and downforce.

           JL222
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on January 25, 2013, 02:56:38 PM
Can you narrow it up a bit so the bottom of the spill plates touch the side of the body to make the vertical face smaller without effecting their performance much?

jon

  That would be the easy way and it would actually work. But lowering it down and back would give more area and downforce.

           JL222

I'm not much of an aero guy, so I'm going to let John weigh in with his ideas. Now that we know what will be deemed legal, John is looking at options. I know John wants to keep as large of a spill plate as he can, out in 'clean'air.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on January 25, 2013, 03:47:22 PM
I'm glad you're happy with it -
I'm certain it will work well -
But gosh darn it, the lines on this car are just so sweet - especially the chop - I hate to see it have to go in this direction.  
:cry:

Chris, I know you don't like the mods, and aesthetically, I don't either!
 
The car was built for Vintage class, with a vintage look. However, the engine shows more promise than even I expected, so why not take advantage of it? The only way we can really 'measure' our efforts, is to run against records set by successful teams-I don't feel breaking our own records, set in open classes, is going to prove much to anyone, let alone to myself.
 
I can't afford to build a whole new car, to move to the /BGCC and /BFCC, so our 'quest' is gonna get fugly!

....but it will sound real cool! :-D
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: lsrjunkie on January 25, 2013, 05:27:16 PM
Fugly or not, I think it looks way cool! Reminds me of what people in the forties thought a car would look like in the future!  :-D I hope it all works so you can get a hat that will match that purdy car!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on January 25, 2013, 06:25:54 PM
Fugly or not, I think it looks way cool! Reminds me of what people in the forties thought a car would look like in the future!  :-D I hope it all works so you can get a hat that will match that purdy car!

Thanks Joe!

Ok, moving on with aero mods, our new, narrower axle showed up today! With the axle, new rims, and narrower tires, the front end will be 9" narrower!

Randy is setting this up to change out quickly in the pits. So, our new 'quickchange' front end will be installed for comp coupe class, with more 'glass work by John K., and removed for altered class.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Glen on January 25, 2013, 06:42:26 PM
Who made the axle, looks neat. :cheers:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on January 26, 2013, 05:49:41 AM
Thanks Glen- it's a special order Super Bell.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Dr Goggles on January 26, 2013, 06:06:06 AM
Can't believe how the ante has been upped on this build. After meeting the crew last year( who have more talent each than most teams) I guess it was only a matter of time before you all got the itch. Love the whole swap in front end, will learn to love the spoiler and scoop... :cheers:

go get 'em.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on January 27, 2013, 08:24:00 AM
James, you're way to kind, but thank you!

While we wait on the new roller cam from Dema, Dale and Don are busy with designing new lifter blocks and roller lifters. The lifters will be slightly oval, for indexing purposes.
 
From Dale:

Just finished the first design of the lifter block – talked to Don today as well.   He is going to make me a picture of the lifter design . . . so I know what he wants.    I’m going to have him make one out of aluminum first – to see what parts of the design will need to be tweaked (tough to tell without a prototype).
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Rex Schimmer on January 27, 2013, 01:26:52 PM
Buddy,
What it the plan for material for the lifter blocks? Steel with bronze sleeves, cast iron, block of cast bronze maybe? Does the lub for the lifters come from the crank case "splash and clatter"? or is there an individual oil line that supplies the oil?

Rex
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on January 27, 2013, 03:12:39 PM
Rex, the lifter blocks will be cast, and the lifters will be 1018 cold rolled steel, carbonized then drawn 400. Rollers will be Harley .850" wheels and axles.

The stock lifters were hydraulic, and fed from the pressurized oiling system. We'll add another pressure section to the dry sump, and dedicate it to the lifters, plugging the factory feeds out of the block.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Milwaukee Midget on January 27, 2013, 03:37:01 PM
The stock lifters were hydraulic, and fed from the pressurized oiling system. Well add another pressure section to the dry sump, and dedicate it to the lifters, plugging the factory feeds out of the block.

That should get you more oil where I suspect you'll be needing it - the mains.

This one just keeps getting better and better.

 :cheers:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: lsrjunkie on January 27, 2013, 04:12:49 PM
I concur!
Title: Re: XXO/BVGC '38 Chevy Coupe Build - Completed Lifter Blocks and Lifters
Post by: BoredAndStroked on January 27, 2013, 10:16:23 PM
Hey Gang - been working all weekend on some SolidWorks 3D designs for our own custom roller cam setup - Buddy posted an earlier design yesterday (still in progress).

Don, Buddy and I have been scheming on how to make this setup --> which requires the creation of our own lifter blocks (there are four that bolt into the engine) - along with the lifters themselves. Dema Elgin is making the roller cam.

Anyway, Don came up with the idea of using 'flats' on the sides of the lifter bodies for indexing. We've never seen that done before - so we're going to give it a try. The lifter blocks will be CNC produced out of solid hunks of cast iron stock. Most of the surfaces, holes, etc - will be done on Don's CNC machines. The lifter body holes themselves will be done with a precision EDM machine - which can hold extremely accurate tolerances - should be able to get exactly the shapes we need (at least that is the theory!).

We're going to be using Harley .855 roller lifters and axles - the rest we'll make from scratch. Now it is on to some prototype blocks - to see if I have the design somewhat "close".

We're going to have a full-length oil galley in each block - so that every lifter has it's own oil supply.

Here are some pictures:

Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Rex Schimmer on January 27, 2013, 10:42:47 PM
Don't you think that EDMing the lifter bores is a real case of over kill. Since you are making your own lifter blocks couldn't you just make the lifters guide on the rollers like many do? I also might have a problem with the surface finish of the blocks after the EDM operation. It does leave a some what "disturbed" finish and to get better finish quality you are required to do multi passes with additional tools or hone and polish.

Rex
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: BoredAndStroked on January 28, 2013, 09:16:16 AM
Hey Rex:

Can't really guide it on the rollers -- like what I call the 'T-Slot' approach that Harley uses.   With a .850 roller and a .730 body, there is not enough material (roller) left in the T-Slot when the roller is on the heal of the cam (as the cam lifts over .500).   I've only used EDM (many years ago) to remove things like broken taps - but I hear that there are certain machines that can do very high quality work.   We'll obviously test and see what we get back - if we don't like it, we can do a traditional "keyway" approach like Jesel and others do.

Anyway, I'm happy to see what can be done . . . then we'll know if this approach has merit or not.   Nothing ventured . . . nothing gained my friends!   :cheers:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on January 28, 2013, 09:22:45 AM
Rex, I passed on your concern, as well as an email I received. Here is Don's reply:

 
 
  Aw  Grasshoppers   -- Let me tell you a story !!!!! 
 
  I have no worries with an EDM  I have been using them for about 25 years,,   In the raw condition after cut there is a residue left over from the coating on the wire,  a simple electro polishing after will remove the residue, and a little -- very little hand work you can archive  a 16 ra finish !!!   Read below
 
 

Electrical Discharge Machining, EDM is one of the most accurate manufacturing processes available for creating complex or simple shapes and geometries within parts and assemblies. EDM works by eroding material in the path of electrical discharges that form an arc between an electrode tool and the work piece.  EDM manufacturing is quite affordable and a very desirable manufacturing process when low counts or high accuracy is required.  Turn around time can be fast and depends on manufacturer back log.


The EDM system consists of a shaped tool or wire electrode, and the part. The part is connected to a power supply. Sometimes to create a potential difference between the work piece and tool, the work piece is immersed in a dielectric (electrically nonconducting) fluid which is circulated to flush away debris.

 
The cutting pattern is usually CNC controlled.  Many EDM machine electrodes can rotate about two-three axis allowing for cutting of internal cavities. This makes EDM a highly capable manufacturing process.

EDM comes in two basic types: wire and probe (die sinker). Wire EDM is used primarily for shapes cut shapes through a selected part or assembly. With a wire EDM machine, if a cutout needs to be created, an initial hole must first be drilled in the material, then the wire can be fed through the hole to complete the machining. Sinker (die sinking EDMs are generally used for complex geometries where the EDM machine uses a machined graphite or copper electrode to erode the desired shape into the part or assembly. Sinker EDM can cut a hole into the part without having a hole pre-drilled for the electrode.

EDM Power System. The discharge energy during EDM is provided by a direct current pulse power generator. The EDM power system can be classified into RC, LC, RLC, and transistorized types. The transistorized EDM power systems provide square waveform pulses with the pulse on-time usually ranging from 1 to 2000 msec, peak voltage ranging from 40 to 400V, and peak discharge current ranging from 0.5 to 500 A. With the RC, LC, or RLC type power system, the discharge energy comes from a capacitor that is connected in parallel with the machining gap. As a result of the low impedance of plasma channel, the discharge duration is very short (less than 5 msec), and the discharge current is very high, up to 1000 A. The peak voltage is in the same range of transistorized power systems.

The transistorized power systems are usually used in die-sinking EDM operations because of their lower tool wear. Capacitive power systems are used for small hole drilling, machining of advanced materials, and micro-EDM because of higher material removal rate and better process stability. WEDM power generator usually is a transistor-controlled capacitive power system that reduces the wire rupture risk. In this power system, the discharge frequency can be controlled by adjusting the on-time and off time of the transistors that control the charging pulse for the capacitor connected in parallel with the machining gap.

Key EDM System Components: The machining gap between tool and work piece during EDM must be submerged in an electrically nonconductive dielectric fluid. In die-sinking EDM, kerosene is often used as a dielectric fluid because it provides lower tool wear, higher accuracy, and better surface quality. Deionized water is always used as a dielectric fluid in WEDM to provide a larger gap size and lower wire temperature in order to reduce the wire rupture risk. This fluid also serves to flush debris from the gap and thus helps maintain surface quality.

Copper and graphite are commonly used as die-sinking EDM tool materials because of the high electrical conductivity and high melting temperature and the ease of being fabricated into complicated shapes. The wire electrode for WEDM is usually made of copper, brass, or molybdenum in a diameter ranging from 0.01 to 0.5 mm. Stratified copper wire coated with zinc brass with diameter of 0.25 mm is often used.

In the traditional die-sinking EDM process, the tool is fabricated into a required shape and mounted on a ram that moves vertically. The spark discharges can only occur under a particular gap size that determines the strength of electric field to break down the dielectric. A servo control mechanism is equipped to monitor the gap voltage and to drive the machine ram moving up or down to obtain a dischargeable gap size and maintain continuous sparking. Because the average gap voltage is approximately proportional to the gap size, the servo system controls the ram position to keep the average gap voltage as close as possible to a preset voltage, known as the servo reference voltage.

In a WED machine, the wire electrode is held vertically by two wire guides located separately above and beneath the work piece with the wire traveling longitudinally during machining. The work piece is usually mounted on an x-y table. The trajectory of the relative movement between wire and work piece in the x-y coordinate space is controlled by a CNC servo system according to a preprogrammed cutting passage. The CNC servo system also adjusts the machining gap size in real time, similar to the die sinking EDM operation. The dielectric fluid is sprayed from above and beneath the work piece into the machining gap with two nozzles.

 

The power generators in WED machines usually are transistor-controlled RC or RLC systems that provide higher machining rate and larger gap size to reduce wire rupture risks. In some WED machines, the machining gap is submerged into the dielectric fluid to avoid wire vibration to obtain a better accuracy. The upper wire guide is also controlled by the CNC system in many WED machines. During machining, the upper wire guide and the x-y table simultaneously move along their own preprogrammed trajectories to produce a taper and/or twist surface on the work piece.

Advantages of EDM :


Complex shapes that would otherwise be difficult to produce with conventional cutting tools
Extremely hard material to very close tolerances
Very small work pieces where conventional machining tools may damage the part from excess cutting tool pressure.
There is no direct contact between tool and work piece. Therefore delicate sections and weak materials can be machined without any distortion.

Disadvantages of EDM :


Relatively s low rate of material removal.
Additional lead time and cost used for creating electrodes for ram/sinker EDM.
Reproducing sharp corners on the workpiece is difficult due to electrode wear.
Electrical power consumption is high.
Material mustbe electrically conductive

Mechanical Design Considerations:


Relax the surface-finish for the part, if feasible. This allows the manufacturer to produce the part with fewer passes, at a higher current level and a higher metal-removal rate.
Design or prepare the part such that the amount of stock removed by EDM is relatively small. Use traditional machining techniques to remove the bulk of the stock with the finishing operations performed by EDM. This significantly reduces the amount of time and cost for each part.
The EDM manufacturer should consider fixtures such that several parts can be stacked and machined simultaneously or a single part can have several EDM operations performed simultaneously.
When existing holes are to be enlarged or reshaped by EDM, through holes are preferred to blind holes as they permit easier flow of dielectric fluid past the area being machined
There will be some degree of materials exchange between the EDM wire / probe and the base material. Specifya cleaning procedure is galvanic corrosion is a concern.
The minimum internal corner radius of cut feature will dictate the maximum wire diameter that can be used. Obviously, the wire diameter needs to be at less than double the minimum inside corner radius. However, one also has to account for the amount of final overcut, plus a small amount of “maneuvering” room, so that the CNC can generate the corner. This is analogous to CNC contour milling, in which accurate internal corner radii are generated by machine motion, rather than just plunging an end mill into a corner and accepting the result. Usually, “the bigger, the better” for wire diameters up to .010”. It is important to note that the new “twin wire” machines can employ a different strategy for these conditions, however, most of us do not have this luxury. Recommendations for small diameter wires include: • High Tensile Brass wire for .006” diameter
• Steel Core wire from .002” to .004” diameter
• Moly wire from .002” to .004”
• Tungsten wire from .0008” to .002”


Dimensional Accuracy (+/- 0.0005 inches per inch)
Feature Profile accuracy of .0003 is obtainable with cutting path
Features to feature true position of .002 is reasonable and down to .001 is possible when geometry requires removal and reattachment of wire.

Surface Finish (micro inches Features created by EDM have an "orange peal" appearance.
16 Ra is achievable, 64 or higher Ra is typical and less expensive


Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: SPARKY on January 28, 2013, 09:26:00 AM
COE   :? cast has a reputation of not growing much
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on January 28, 2013, 09:27:53 AM
COE   :? cast has a reputation of not growing much

Sparky, I'm not following you........
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Captthundarr on January 28, 2013, 11:11:56 AM
Ref. flatties post detailing EDM - condensed version - works real good, real accurate, vary little hand finishing required. I / we used it to produce precision punch press dies.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: SPARKY on January 28, 2013, 12:29:01 PM
The CAST material for the bore will not likley grow as much from heat as the STEEL lifter--- will most likely will need a larger bore than one would think if the two metals had the same  COE (coefficient of expansion)
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Rex Schimmer on January 28, 2013, 12:37:38 PM
I assume that our plan is to drill a pilot hole for the roller body and then wire EDM the final shape?

Rex
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: WOODY@DDLLC on January 28, 2013, 03:09:58 PM
Round holes are easier to make and fix!  :-D
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on January 28, 2013, 03:26:38 PM
Rex, I believe that is correct.

Thanks woody-that would be simple enough!


Sometimes I forget ideas that are posted here, so I occasionally go back through to see what I've forgotten about. Today, I found this post from Rex, posted 2 years ago:


Another thought about linking the two sides of the block together, you might consider using a thick aluminum plate that picks up the 4 cast and machined lugs that the lifter carriers attach to and then machine the lifter bores into the plate. You would probably need a pair of plates one for the front and one for the rear but it would help (I think!) You could also use steel just to get the expansion rate the same, just takes longer to machine and adds some weight.

Rex



I really like the idea of somehow making a single lifter block, that ties the block together. I passed this on to Don and Dale for consideration, and I can here Dale now " Do you know how much work that will be to make, let alone design? The lifters are at angles, this will be a bitch!" LOL!

I think since we have to make the blocks anyway, this has a lot of merit!

Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: DND on January 28, 2013, 08:10:49 PM
Hi 38

I built engines for 25 yrs , and would not touch that lifter deal with a ten foot pole like they say ' KISS ' you have enough one off stuff in your neat Flat Cad engine.

Just go with a proven method of linking the lifters together and run it and forget it.

Keep your mind thinking about the one off stuff that you have to have and not a thing like this.

Racers out think thier selfs a lot of the times for wanting to be way too trick, and that is not what wins races as you got to get that beauty to the flag first to win!!!

Don
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: SPARKY on January 28, 2013, 08:27:23 PM
Don as you know in LSR  you have to do it twice... :-D
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on January 28, 2013, 09:57:12 PM
Don as you know in LSR  you have to do it twice... :-D

 

Ha-ha!

Don, I agree with you, to a point.

You have to remember, we are trying to get far more HP and RPM's out of this block than it was designed for. If we can make parts that do 'double duty', like this one could, it's to our benefit. If we can convert to roller lifters, AND have the lifter blocks help tie the block together, it might be worth the effort.

....besides, you know the saying-if it were easy, everyone would do it! 

Ultimately, though, Don machines the parts. Sometimes, the effort outweighs the benefit, so we'll see what he says.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: DND on January 28, 2013, 11:01:23 PM
I think your idea of tying the block together with the lifter blocks is very good, just use a round hole and lifter.

Like Rex says bore - hone , you might leave a fine hone pattern for oil retension and have the lifter bodys ground to the size you wan't for clearence.

Then use a time proven way of keeping the lifters in line, and not some trick deal that could blow up on you.

I had a roller shell break one time and you talk about a mess in the bottom end, those small needle bearing's shot peened every part with very big dents that you could not grind out looked like a bomb went off in the pan.

All those cam guys already did the R&D on what works best to keep the roller lifters in line, just pick one style and go with that.

Keep your trick stuff for the items that you have to make on your Flat Cad !!

Don

Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Milwaukee Midget on January 29, 2013, 12:15:56 AM
I think Rex's idea of tying the block together with the guide plate in the gallery is inspired.

The wider angled center main will help, but there is still a lot of open space in this block, and it’s likely to twist and distort if you guys start creating the horsepower you're shooting for.  Anything you can do to stabilize this block will be a benefit.


 
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Jack Gifford on January 29, 2013, 01:17:32 AM
FYI- Having suffered the agony of a "broken needle bearing roller" inside a race engine, I want to avoid needle bearings in the DOHC deal I'm building. Ron Iskenderian is willing to supply me with EZ-Roll wheels and axles to use in my one-off cam followers. If you want to look into that, call Isky and ask for Ron (afternoons, CA time).
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: DND on January 29, 2013, 01:41:47 AM
Hi Jack

It interesting to see what is new in the racing engine stuff, as i built the last engine in 86' a 6-71 blown small block for a street duece and he wrapped it around a tree [ i told him to be carefull ] a flat torque curve and 9" tires do not work to well in the hooking up dept.

Does Isky have a set up now without the needle bearings, just a shell and axle?

Those little devils sure do make a mess of a crank - rods and pistons etc.\

Don
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: basher13 on January 29, 2013, 02:18:29 AM
Buddy, WZJunk,

I've been looking at the build pictures on the scoop and can't help but wonder a few things.
     How was the design determined?
     Why SO big?
The intake tube runs straight out and has a rounded base supporting it, 3"-4" above the hood?
Why not lose the base and suck that intake snout down to the hood, using slight bulges on either side working up to the height of the injector hat?
A big ramp with fairly flat sides doesn't look like it flows well.
It just seems like a lot more was added than what is needed, help me understand.

 :cheers:
Dan
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: dw230 on January 29, 2013, 06:24:08 PM
This is not me posting under another name.

DW
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: pops29 on January 30, 2013, 11:09:10 AM

  HI All

  I don't get on the board very often at all but . To reply to the worries of some, about the lifter design.. most all roller lifter designs are based on traditional engine designs having the lifter bores cast in the block , This application limits us dramatically on our options. the design I went with will give us the best results, 90% of the lifter is round and will operate smoothly and bind free with no tabs or pins , key-ways ect.  With the lifter blocks being a separate part and bolted in the block this opened up the ease of the design and the EDM. work that will be done.  We have very little room in the block at assembly and Dale can tell you that for sure ! so any possibility if traditional lifter design will not work.

Don   
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Rex Schimmer on January 30, 2013, 01:26:05 PM
Don,
As the old saying goes: "You are copulating with this cat, we are merely holding its head!" It is just great to watch the things you guys are doing to this "old lump" to make pretty respectable horse power, please continue!!

Rex
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: SPARKY on January 30, 2013, 08:38:56 PM
 :cheers: :cheers: :cheers:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: WZ JUNK on January 31, 2013, 06:21:07 AM
I think the short answer is that there is some features that the pictures leave out or are distorted because of the camera angle.  The sides and top of the scoop do have a curvature and rounded edges at the top.  The sides are as small as they came be that will allow room for the blower, injector, fuel lines and linkages that are underneath.  The scoop had to be symmetrical and yet leave as much room as possible in the windshield area.  The top of the scoop is curved with the same arc as the top of the car.  If we had been able to leave the scoop as I had originally planned, the air would flow continously from the snout over the top of the car.  The snout is above the hood to get it up away from the surface of the hood into good air flow.  All of this has been a design exercise.  We had to build something that would help the car, and yet be legal, without costing and arm and a leg, and taking a lot of time to build.  It had to be removable so that the car could run in two classes.

I was hoping someone would ask me, why I built such an odd piece.

John 


Buddy, WZJunk,

I've been looking at the build pictures on the scoop and can't help but wonder a few things.
     How was the design determined?
     Why SO big?
The intake tube runs straight out and has a rounded base supporting it, 3"-4" above the hood?
Why not lose the base and suck that intake snout down to the hood, using slight bulges on either side working up to the height of the injector hat?
A big ramp with fairly flat sides doesn't look like it flows well.
It just seems like a lot more was added than what is needed, help me understand.

 :cheers:
Dan
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Tman on January 31, 2013, 10:40:57 AM

I was hoping someone would ask me, why I built such an odd piece.

John 




Because you are an odd guy?! :-D
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Tman on January 31, 2013, 11:47:30 PM

I was hoping someone would ask me, why I built such an odd piece.

John 




Because you are an odd guy?! :-D

Basher, that was a typical quote butcher. Happens a lot with teh format here. I was shooting the odd quote back at John K, not you! :-D
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: basher13 on February 01, 2013, 12:02:25 AM
 :cheers:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: BoredAndStroked on February 02, 2013, 02:55:16 PM
Working on a prototype support system for the lifter blocks.  The idea is to tie the lifter blocks together and then tie the whole assembly to the 3/4" steel intake girdle plate.  We'd use find threaded nuts on the rods and adjust them to put a bit of down-force or 'crush' to the lifter blocks themselves.  Hopefully this will stabilize the blocks and remove some stress from the four cast iron 'tabs' that the lifter blocks bolt to.   I am very nervous about those stock lifter block mounting tabs - they are very small, hang out in the breeze and with roller lifters and heavier springs - will have lots of load on them.  Break a tab off the block - everything becomes a blender in a hurry.

The two rods would go through the aluminum valley plates and tie into the intake girdle plate.   I don’t believe they can just bolt through the intake girdle plate (due to the intake manifold bottom – at least from my memory) – so we may need another plate that bolts to the underside of the intake girdle.   In a perfect world, the rods would like up with the cut-out holes in the intake girdle plate (giving us a place for the adjustment nuts).   It isn’t a huge effort to make and I believe it would really strengthen the whole lifter assembly and take some strain off the block ears.

So - here is my prototype design . . .  what do you guys think?

Thanks for looking . . .
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: BoredAndStroked on February 02, 2013, 09:25:58 PM
Okay - Round 2 of the Lifter Block and Strut System:

Don reviewed my design and had some good ideas - so I incorporated them into a new design.   Basically, I'm letting the lifter block bodies bolt down as they always did (7/16 studs to the tabs/bosses in the block) - decided to NOT use the same studs to hold the bridge plate to the blocks.

To handle this, I redesigned the lifter block, increased it's width and added 4 new bolt locations to bolt the bridge plate on AFTER the blocks are all in.  This makes it much easier to get all the valve and oil line drama completed - then just drop the bridge plate and support rods in last.

Mark/Fordboy:  The rods will go all the way through the aluminum valley covers and will mount to the 3/4" thick intake girdle plate.  This is a very solid piece of steel that goes from one side of the intake/exhaust ports to the other.  This should give us a nice solid mounting plate.  I think I'll continue to use the 3/4" steel rods as having the nuts for adjustment on pre-load, will be really helpful.  I hope that with two of them, that we have things solid and tied down enough.   This is a bunch of semi-edumacated guessing . . . but I'm with you, those four tabs do not look like a safe bet to me!

Thanks Don for the ideas!

Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Rex Schimmer on February 02, 2013, 10:36:24 PM
Bored and Stroked,
An idea for making your vertical mounting bolt set up extra stiff and preloaded. As you have it now if you tighten the top nut you will pull up on the lifter blocks, if you tighten the middle nut you will push down on the lifter blocks and the problem, as I see it is that preloading in either direction will not preload the long bolts enough to keep them from stretching. Maybe you could remove the very bottom nut that locks the vertical stud to the lifter plate and then install a heavy wall tube over each of the studs, min. 1/4 inch wall. If you want a slight preload down on the lifter blocks you make the tube .001-.002 longer than the distance from the lifter plate to the upper block girdle plate, if you want the preload the other direction then you would make the tubes slightly shorter. Now once you have the tube the length you want, shorter or longer, you can torque the BFJ out of the vertical studs which will put them in stretch and preload them such that they will not stretch until the load exceeds the preload, which looking at your dwg will probably never happen. Just a thought.

Rex
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: BoredAndStroked on February 03, 2013, 09:10:43 AM
Bored and Stroked,
An idea for making your vertical mounting bolt set up extra stiff and preloaded. As you have it now if you tighten the top nut you will pull up on the lifter blocks, if you tighten the middle nut you will push down on the lifter blocks and the problem, as I see it is that preloading in either direction will not preload the long bolts enough to keep them from stretching. Maybe you could remove the very bottom nut that locks the vertical stud to the lifter plate and then install a heavy wall tube over each of the studs, min. 1/4 inch wall. If you want a slight preload down on the lifter blocks you make the tube .001-.002 longer than the distance from the lifter plate to the upper block girdle plate, if you want the preload the other direction then you would make the tubes slightly shorter. Now once you have the tube the length you want, shorter or longer, you can torque the BFJ out of the vertical studs which will put them in stretch and preload them such that they will not stretch until the load exceeds the preload, which looking at your dwg will probably never happen. Just a thought.

Rex

Hey Rex, I like that idea - pre-load up against the outer tubes to tie the whole assembly together.  Also, it is easy to rework the tube length in my lathe to precisely get it 'tuned' to length.   I like this idea of making everything a solid assembly - instead of having the rods under very light pre-load.  In the current setup, if I move/tighten either of the upper nuts too much, then I put a bunch of pressure on the lifter block studs/bosses -- either up or down . . . this removes the pressure and make the assembly more integral and died into the intake girdle plate (which is thick).

Thanks for the idea!

B&S
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on February 10, 2013, 09:43:54 PM
Randy has been thrashing on the new front end. With the narrower rims, tires, and axles, the front end is 9" narrower.


Randy says it's a good thing we have the proverbial '40 acres' to turn this thing in! :-D
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Richard 2 on February 11, 2013, 10:32:11 PM
38, What brand of hubs and spindles are you using. looks like you have your scrub about right.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on February 12, 2013, 07:06:26 PM
Richard, the spindles are Speedway 1937-41 spindles. The hubs are Magnum aluminum Nascar style hubs, 5X4.5
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on February 13, 2013, 01:57:55 PM
Well, I'm out here Randy's, and went to get the new tires on the new rims. The rims are disappointing-the edges are far from round, and one of the welds leaked. After a trip to the welding shop, I finally got the tires mounted.

Don has been working with Rick at  Boyd Enterprises, to get the block ready. The plan was to rough in the main bores, fill the block 5" from the deck, bore and polish the mains, and do the valve job. Simple right?

Nope! . Rick went to rough in the main bores, and found out the center main was off a thousandth and a half  of being round. WTF?

Dale had wanted 5 thousandths crush on the mains, like we ran last year. After Rick and Don did some investigative work this morning, the 'crush' is the issue-when the girdle is tightened up, it's egging the half of the main integral to the block. We didn't catch this last year, but I'm happy we did this year !They will remove the crush one thousandth at a time, until the issue is resolved, then continue on with the block work.

Nice catch, Don! :cheers:


Update from Don: Ok I just talked to Rick and yes as soon as he released the girdle the block straightened out with-in .0005  so the crush on mains have to be .001 to .0015 max   
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on February 16, 2013, 09:34:50 PM

Don has been busy! Today he whittled the prototype roller lifter blocks, from aluminum.

Some pics of his progress.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on February 16, 2013, 09:42:32 PM
...and the finished product!

 Don, 1st class, but we've come to expect that! Your work takes this build to the next level! Thanks again!!!!! :cheers:


Tomorrow Don is doing the prototype lifters!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: tauruck on February 17, 2013, 05:10:34 AM
That is some serious machining. Very impressive. I'm drooling. :cheers:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Stainless1 on February 17, 2013, 10:40:07 AM
WOW, When you guys jump in, you don't screw around.  Nice looking work Don.  

Buddy, hope you can stop for a longer visit next time through. Thanks  :cheers:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Milwaukee Midget on February 17, 2013, 10:52:41 AM
That crush issue concerns me.  Is .001-.0015 going to be sufficient?  The tangs hold it in place, but it's the crush that keeps it from spinning.  It's a long crank with three mains that's going to be taking a pounding.

Yeah, I know, I'm a worrywart . . .

Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: pops29 on February 17, 2013, 03:52:31 PM
(http://www.jalopyjournal.com/forum/picture.php?albumid=31768&pictureid=448284)
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: pops29 on February 17, 2013, 03:56:29 PM
ok I just figured out how to post the pics  LOL  here you go for the lifters

http://www.jalopyjournal.com/forum/picture.php?albumid=31768&pictureid=448279
(http://www.jalopyjournal.com/forum/picture.php?albumid=31768&pictureid=448280)
(http://www.jalopyjournal.com/forum/picture.php?albumid=31768&pictureid=448281)
(http://www.jalopyjournal.com/forum/picture.php?albumid=31768&pictureid=448282)
(http://www.jalopyjournal.com/forum/picture.php?albumid=31768&pictureid=448285)
(http://www.jalopyjournal.com/forum/picture.php?albumid=31768&pictureid=448283)

 I will be sending these off to Dale next week
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on February 17, 2013, 04:43:06 PM
Chris, I think we'll be okay with the crush. We're going with a little heavier oil this year,and coated bearings.  With the clearances we have on the bearings, I think we'll be okay.

Stainless, thanks for the invite!

Thanks Tauruck!

Don, Fantastic! :cheers:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: robfrey on February 17, 2013, 11:32:13 PM
You guys do nice work! Lord willing, this is going to be a great year for you.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on February 20, 2013, 10:30:10 PM
Thanks Rob!

Well, here we are at the last minute again, this time trying to figure out direct port injection, instead of intake manifold injection.
 
Here is what we are thinking: have an aluminum block/plate that probably is mounted off of a valley plate -- it would be right against the port wall.   These aluminum blocks would be
1/2" thick and tapped for the nozzle.  The blocks would also be located/angled
as necessary for port direction.  Then, there would be a hole drilled through
the cast iron into the port and if there was any material left to thread, then
we'd thread it.  If too thin, then we'd need to seal it with something that can
take boost - like epoxy. there will not be much block material to use - especially on the angled ports (4 of them).

Anyone got a different/better idea?
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Milwaukee Midget on February 21, 2013, 09:39:19 AM
Just so I'm clear - are you talking about injecting from underneath up and into the back of the valve, or just down and into the port?

 :?
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on February 21, 2013, 10:37:52 AM
Just so I'm clear - are you talking about injecting from underneath up and into the back of the valve, or just down and into the port?

 :?

Chris, we will come in low in the port, with the nozzles pointed directly at the valves. I can't draw, but this pic shows the angles of the nozzles, and how they will go through the port walls. Hope this makes things a little clearer.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: RichFox on February 21, 2013, 11:18:11 AM
I did something like that on the V6 I ran in Jacks 788 car. It worked OK on alcohol but not on gas. i thought the gas was not atomizing properly. Or something.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Freud on February 21, 2013, 08:32:30 PM
It's good to see a post from you, Rich.

FREUD
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: SPARKY on February 22, 2013, 10:42:05 AM
Buddy, first of all I have never run mech fuel inj. but I have asked a lot of questions to a lot of racers, eng builders and engineers over the last 15 years; I want to second Rich's statment.
 I heard the stories of a guy's  who dramatically helped the performance of some eng's by changing the spray direction the fuel from with, to "into" the oncoming air stream. You need good fuel atomization and distrubution in the incoming mixture to make good power.

Maybe put them in at 90 deg. so you can index them and try rotating the spray slot? Trying different length nozzels to try different heights in the port?
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on February 22, 2013, 12:41:41 PM
The mechanical injection is necessary, if we want to continue to run in the Vintage classes, so it will stay, at least as long as the engine is in the car. Once we move to turbos, that will change.
 
Rich and Sparky, these were just our initial thoughts.

We'll go back to putting the ports in the intake. It will be faster anyway, as we won't have to wait on the block.
 
I just had a long conversation with John Beck about this .While he thought it would be a little better, power wise, to put them in the ports, he said it's too big of a PITA!
 
He said the injectors need to be where we can easily access them, as we'll be pulling and looking at them virtually every run. In addition, he said make sure the distribution block is higher than the nozzles, with no low points in the fuel lines, for alky to sit in. We'll make plenty of power with the alky, and nitro if necessary, anyway.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Roseville Carl on February 23, 2013, 12:02:29 PM
KISS Buddy, like that idea better........... :cheers:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: maguromic on February 23, 2013, 08:00:28 PM
Buddy, Finally got a break from my crazy schedule to read through your last bunch of pages and are impressed with the work you and your talented team are doing.  One thing I did noticed on your dry sump system is you might run into an issue with the amount of vacuum you will create in the rear end and transmission.  Not knowing the size of the scavenge sections of your pump and only guessing its properly on the bigger side, I would run a one way pop off valve to vent the rear and trans.  Its a couple of extra lines (or run a "Y" into one line) back to the breather tank, but cheap insurance.  Tony
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on February 24, 2013, 05:00:29 PM
Thanks Tony! I hadn't thought of that, but I'll address it!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: lsrjunkie on March 18, 2013, 09:06:17 PM
Hey Buddy! How are things progressing?
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on March 19, 2013, 04:18:12 PM
Joe, Thanks for asking!


There's a lot going on, but not a lot to post about.

Randy was down and hospitalized with pneumonia, so chassis work was held up for a bit. He's recovering now, but still not 100%

The car goes to John K's tomorrow, for the final aero work, and rear wing. John's time is pretty tight, because he has a LOT of work to do on Hooley's car also.

The block has been half-filled with hard blok, line bored for the new girdle, and the valve job done. It will go to Don in the next day or two, so that he can mock up the test lifter blocks and lifters. Once Don determines what changes are necessary, if any, he'll make the real lifter blocks and lifters.

As soon as Don is done with the block, it will be coming back east for 0-rings and assembly. We o-ringed the heads, but want to o-ring the block, and have the receiver grooves in the heads this year. We're still waiting on the roller fuelie cam from Dema, and hopefully it's done soon!

Dale and Chris are working on the port injection and plumbing, and will probably post pics soon.

I've got all the electronics gathered up for the class change, except for the crank sensor.

Still sooooo much to do, and as usual, we're 3 months behind!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: tauruck on March 19, 2013, 05:39:16 PM
Hang in there buddy. It sounds great. I hope Randy gets well soon.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: lsrjunkie on March 20, 2013, 09:31:16 AM
Damn! You boys sure got a lot going on! Keep it up man, I'm really looking forward to seeing this old girl run in August!  :cheers: If it makes you feel any better, at least your looks like a car! Hope Randy's feeling better!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: SPARKY on March 20, 2013, 10:46:11 AM
keep after it GUYS--- this is such good stuff   :-)
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on March 21, 2013, 10:47:45 AM
We now interrupt today's programming for a little Tee teaser.... :-D
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: tauruck on March 21, 2013, 10:50:40 AM
PM sent, postal address included, small or medium. :-D :-D :cheers:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: lsrjunkie on March 21, 2013, 09:53:36 PM
Sweeeeet!!  :cheers: I'll take one! Medium please!  :-D
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Captthundarr on March 21, 2013, 10:12:54 PM
We'll take 2
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Buickguy3 on March 22, 2013, 09:13:57 AM
  Buddy,
     What was the final determination for a hood scoop for the "blown" engines? Got any pictures of the final design? Is the one on the T-shirt a final representation? We are making changes to Salt Cat 1 for 2014 and have been looking at that option. We don't necessarily need more air or any aero at this point, we just need more room to get stuff in the engine bay. Looking good, Buddy.
    Doug
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Frankie7799 on March 22, 2013, 05:37:51 PM
Buddy, way cool t-shirt design. How much and where do I send the check or m/o to for two shirts?

I have a question in regards to the remote dry sump system you are running on the car. Cuz im too lazy to go back through 100 pages of this awesome build I dont recall what tranny you are running. What tranny are you running and how are you going to work a scavenge and return to it?
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on March 23, 2013, 07:24:28 AM
Thanks for the support, guys! Med-XL shirts are $18.99, XXL and 3XL are $20.99, and shipping is $3.99. They will be for sale at www.flatcadracing.org, and www.flatcaddy.com , soon. In the mean time, you can Paypal lynchss47@aol.com. please allow 2-3 weeks shipping, because I spend 2 weeks out of every month in Pennsylvania, and may not be home to ship.

 Buddy,
     What was the final determination for a hood scoop for the "blown" engines? Got any pictures of the final design? Is the one on the T-shirt a final representation? We are making changes to Salt Cat 1 for 2014 and have been looking at that option. We don't necessarily need more air or any aero at this point, we just need more room to get stuff in the engine bay. Looking good, Buddy.
    Doug

Doug, we cut the scoop off at the cowl. We had 2 choices- make the scoop conform to the unblown car rules, or treat it as comp coupe streamlining. Since it is more than 11" tall, we did not want to redo the whole thing to conform to rule 4.R, so we treated it as streamlining. We are still looking at how to 'clean' it up a little.

I have a question in regards to the remote dry sump system you are running on the car. Cuz im too lazy to go back through 100 pages of this awesome build I dont recall what tranny you are running. What tranny are you running and how are you going to work a scavenge and return to it?

Frankie, Liberty is installing a spraybar for the dry sump pressure side. We'll scavenge out of a drain plug on the bottom. I'm have ultra close gears installed, which should tighten up our rpm drops, and get us to speed faster. It should help us a bunch on the shorter tracks. Since I was having this work done, I had them install the spray bar. I'll post pics when we install the setup.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on March 23, 2013, 05:19:30 PM
Thanks for the Tee-shirt orders guys! Still have some left!

Don picked up the engine block today, and got right to work! The block has been line bored for the new girdle, half filled with hard-block, and the valve job is done.

From Don:

When I was fitting the lifter blocks I did not have any 7/16" bolts so I grabbed some head studs and used them to hold the blocks in position as the blocks are reemed to 7/16" so we have a tight fit and less chance of walking and I noticed something that would make the full set up easier, we were going to make a cross support plate to tie the 2 lifter blocks together for more strength,, but now we are just going to use some modified head bolts.. I will put a set of head studs in the lathe and thread them far enough down to seat the studs in the block set the lifter block over the studs and run a nut and washer down and tighten them in position ,, then I will make a steel lifter valley cover with holes in them to accept the studs put a spacer over the studs slip the valley cover on then another nut and washer,, this will hold it all together and strengthen the to end a little.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on March 23, 2013, 06:39:43 PM
Don just made a mockup 'cam blank, to test the fit of the roller blocks and lifters. He made a 'base circle' and 'maximum lify insert, that he can set on the blank to check clearances.The long diam. is the base circle of the new cam.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on March 23, 2013, 07:12:10 PM
More.....
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on March 23, 2013, 07:43:01 PM
Last ones tonight....

Max lift is .510"
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Peter Jack on March 23, 2013, 08:02:52 PM
VERY nice work guys!  :cheers: :cheers: :cheers:

Pete
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: robfrey on March 24, 2013, 10:23:13 AM
Agreed. Absolutely beautiful!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Milwaukee Midget on March 24, 2013, 10:47:27 AM
Guys, THIS is what hot-rodding was meant to be.

Anybody can order rods and cams from Summit and make decent horsepower with a SBC.

What YOU'RE doing is taking the ART of hot-rodding and pushing the boundary to a level that few of us will ever have the talent to do.

This is just stunning.

Thanks for letting us come along for the ride.

Chris
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on March 24, 2013, 12:46:15 PM
Chris, your words are way too kind, but thank you!

In reality, we're not doing anything different than you, and most of the guys on the board. We're all trying to do something that hasn't been done before-set the highest record possible. The help, and innovations posted on this board are always amazing!

Good luck on the dyno! :cheers:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on March 24, 2013, 01:13:44 PM
Just received this from Woody. It's pretty cool-check it out!



CFD study on 1940's Cadillac Flat head intake.

http://www.solidworks.com/sww/proceedings/proceedings-presentations.htm

Type in flatcaddy, search, click on video [~48 min] to listen (or view the PowerPoint).

Woody

Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: SPARKY on March 24, 2013, 01:37:37 PM
I have gotten to listen to about half of it so far---thanks for sharing---this is so so amazing several of these builds--

wait untill someone does this to the American IRON Rodaaadsterzzzzzzzzzzzzzzz
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Freud on March 24, 2013, 02:51:01 PM
If any builder (Shelby?) has put this much research into an engine design and build, it has never been documented.

Several of these sites are absolutely mind blowing. Include the Midget, Rob Frey and Bo.........

CONGRATULATIONS fellows.

FREUD
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Captthundarr on March 24, 2013, 06:45:27 PM
Wow, flow patterns not what I would have thought. Great info guys.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: manta22 on March 24, 2013, 09:39:56 PM
That was an excellent presentation-- thanks!

Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Milwaukee Midget on March 24, 2013, 10:50:27 PM
I'm all geeked.  Excellent presentation, Woody!  :cheers: 
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Frankie7799 on March 25, 2013, 01:32:40 PM
Anybody can order rods and cams from Summit and make decent horsepower with a SBC.

Your right Chris canybody can make decent horsepower out of a SBC ( I did it with my drag cars ) but from what im seeing these days it takes a helluva SBC to set any kind of record on the salt and those that have those engines, arent ordering stuff from Summit and Jegs  :-D

Excellent work Buddy. As I told Sparky last week, my head spins when I look at the numbers crunched on some of these builds
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on March 26, 2013, 08:36:31 AM
Support FlatCad Racing Quest 200 Tee Shirts!!!


You may not be able to be on the salt with us, but you can still support our efforts by buying a cool tee shirt!


 Med-XL shirts are $18.99, XXL and 3XL are $20.99, and shipping is $3.99.  You can Paypal lynchss47@aol.com. please allow 2-3 weeks shipping, because I spend 2 weeks out of every month in Pennsylvania, and may not be home to ship.


Thanks Everyone! :cheers:

Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Roseville Carl on March 26, 2013, 12:08:08 PM
Not enough can be said about Buddy's desire to make this project go and to share the results with all who are interested. The Flat Cad is truly a shared expierence for all of us who wish to share it with him and the crew. I for one really enjoy the updates and look forward to hearing the next installment on the Dyno and on the course at full song. Looking forward to tipping a Hop Rod Ale with you guys soon................Carl  :cheers: :cheers: :cheers:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Tman on March 26, 2013, 12:16:56 PM
What? No "Buddy Cut" version of the T!?!?!?!

 You know, the one with the sleeves cut off and the neck cut out? :-D Would that cost more or less due to less fabric used? :cheers:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on March 26, 2013, 08:12:59 PM
Trent, I'll be happy to modify yours for you, on the salt, at no additional charge!

Of course, it's less messy if you take it off first! :-o
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: tauruck on March 27, 2013, 12:03:26 AM
Buddy, you're really going about this build the right way. Those Ts are going to become collectors items. Guys you better buy them before they get too expensive. 8-)
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on March 27, 2013, 08:28:40 AM
John K has been working his magic again! Here is the latest from John:
 
I worked through the weekend getting the fiberglass piece repaired and adding patch panels so that I could start shaping the front fenders.  The picture shows the approximate shape but the the pieces are at least 18 inches to wide.  They will also be cut so that the front will angle in a V shape that will divert the air around the sides of the car.  You can at least see the approximate shape.  Now I will begin trimming the fenders to fit.  This part will be time consuming as I will be fitting a lot of flat shapes to a curved car.
 
We need to visit about the tow bar as I will have to make a removable panel in the front to allow you to use a tow bar.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Tman on March 27, 2013, 10:14:11 AM
Trent, I'll be happy to modify yours for you, on the salt, at no additional charge!

Of course, it's less messy if you take it off first! :-o

You have seen how I dress in the sun! I am one step away from that guy in the ghillie suit from a couple years ago!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: tauruck on March 28, 2013, 02:41:35 AM
Buddy, if you don't have a profile gauge Eastwood has a good one. You won't beat it when it comes to doing what you're busy with. I used this one to create profiles of the tauruck sent to SDSU. Hope this helps.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on March 28, 2013, 02:04:07 PM
Thanks Mike! I didn't know something like that even existed!

The fuelie roller cam is almost done! Here is the latest from Dema:

Hello!  We just got it back from the heat treater and i got it straight and will finish the mains and lobes to size.  The lobes should finish @1.360" the lobe centers are 112 the int lobe lift=.5105" and the exh = .506"  as soon as the finish grind is done I'll plot the cam and give you the durations at the end of the ramp and at .050" and at .100", .200", .300" That should be t the end of the day today.  Dema
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on March 29, 2013, 06:07:19 PM
Woo-hoo! The fuelie roller cam is done and ready to ship!

From Dema:

The lobe centers are 112,  the durations area as follows.  int\exh so at the end of the ramp which is a lot taller than the other cam that you had. this will be easier on the valve springs and give better control at the higher RPMs.  Durations are 318\326@.020"  282\289@.050"  250\255@.100'  lobe lifts are .5105" int .5056" exh  heels are 1.360" on both lobes  lash=.018"int .020" exh  if at split centers of 112 the lift at lap+\-= .134" int .140" exh Int lift at 75 ATDC=.445"  exh open at BDC=.345" and .440"at 75 degrees.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: lsrjunkie on March 29, 2013, 06:25:20 PM
WOOOO HOOOO!!  :cheers: Sounds like yer new bump stick may have a little thump to it!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Jack Gifford on March 30, 2013, 12:18:40 AM
Those cam profiles will make life easy for the starter motor... :-) [or... push truck]
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on March 30, 2013, 11:31:31 AM
Those cam profiles will make life easy for the starter motor... :-) [or... push truck]

True- while mild for a 'modern' style engine, it's a pretty radical flathead cam-full race cam, for sure!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on April 01, 2013, 08:14:11 AM
Guys, I've never been soooo excited! I've been working quietly with Rob for the last few months, to get the FlatCad in his car!

We've got the engine mounting situation figured out, and we're going to do it! Look for us at SpeedWeek!

This build thread is pretty much finished, as new updates will be on Rob's liner thread! http://www.landracing.com/forum/index.php/topic,8665.0.html

Computer diagnoses shows speeds near 400 MPH, with 650 hp!! :-D
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Milwaukee Midget on April 01, 2013, 09:35:58 AM
YOU PROMISED THAT ENGINE TO ME FOR THE MIDGET!  :x

NO BEER FOR YOU!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on April 01, 2013, 09:43:02 AM
I thought the soup Nazi was bad, but a beer Nazi? LMAO! :-D
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Tman on April 01, 2013, 11:15:56 AM
So is the Chevy going to sit out this year?
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on April 01, 2013, 11:46:02 AM
So is the Chevy going to sit out this year?

Trent, Happy April Fool's!
 
Thanks for playing, everyone! :-D

 
John K. just sent me this update-I can't wait to get out there next week, and get my hands dirty!

Randy and I adjusted the wheel alignment yesterday. 
 
I am still trimming but I about have it.  The wheel well will be slightly bigger.  I am sneaking up on it.  The black along the bottom is the approximate ground clearance.  Once I finish this fender, I will make a paper pattern off of it and cut the other fender.  It should go much faster.
 
Randy and I plan to work on the spoiler next weekend
.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Roseville Carl on April 01, 2013, 12:17:07 PM
Hell and I thought you were gonna give the Flat Cad to me to put in the dragster!!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Captthundarr on April 01, 2013, 12:26:07 PM
Dag..... I had my check book out and ready :-(
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on April 01, 2013, 01:32:13 PM
Sorry guys-try me in late August! :-D

We need some unknown material for the fiberglass front end John K. is building. Hopefully, someone will know what it is we're looking for! Lol!

From John:  I need to find the product to use for the skirting material at the bottom of the body panels.  I need some of the black stuff that you have seen on other cars.  Probably about 3 inches wide maybe 2” would do,  and 3/16” to 1/4” thick.  Do you have any ideas?  I think they use a plastic material but maybe some stiff rubber would work.  I would like to know what works.  I know the front piece has to be stiff enough that the air would not blow it back but I would like it to have some flex in case or when it hits the salt.  It will be riveted to the bottom of the panels.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Tman on April 01, 2013, 02:03:16 PM
Circle track stuff, the plastic used for body parts.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Peter Jack on April 01, 2013, 03:35:49 PM
Contact fivestarbodies.com. They should be able to help.

Pete
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Tman on April 01, 2013, 03:37:50 PM
You have a PM

http://www.whislerbearing.com/
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: GH on April 01, 2013, 10:15:37 PM
John, how about UHMW, it's like Teflon except it is a lot harder and stiffer. That's what these newer over head cam engines use for the wear strip at the chains.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: tauruck on April 02, 2013, 03:24:07 AM
Sorry guys-try me in late August! :-D

We need some unknown material for the fiberglass front end John K. is building. Hopefully, someone will know what it is we're looking for! Lol!

From John:  I need to find the product to use for the skirting material at the bottom of the body panels.  I need some of the black stuff that you have seen on other cars.  Probably about 3 inches wide maybe 2” would do,  and 3/16” to 1/4” thick.  Do you have any ideas?  I think they use a plastic material but maybe some stiff rubber would work.  I would like to know what works.  I know the front piece has to be stiff enough that the air would not blow it back but I would like it to have some flex in case or when it hits the salt.  It will be riveted to the bottom of the panels.

Polypropylene, well I think that's how it's spelled. I used it as skirt material on my race car in the 80s when we still ran wing cars. Rivets will require large heads or washers.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on April 03, 2013, 12:55:13 PM
Fordboy, you're right on at least some of your summations.

We did find that the flow increased by 'lengthening' the short side radius. Different valves helped, but ONLY after addressing the short side radius. The stock heads, and modified stock heads, flowed better than the race heads.

There will be a lot of work done in this area next winter, when we switch to turbos!

John K has been working feverishly on the front aero mods. Randy and John set and checked the alignment last weekend.

John is getting closer on the fiberglass work. He says the is still a slight difference side to side, but he's gaining on it!

Nice work, too! Way to go, John!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: gkabbt on April 03, 2013, 04:19:42 PM
Guys,

Keep up the GREAT work! 
This is such a cool pic!

(http://www.landracing.com/forum/index.php?action=dlattach;topic=8271.0;attach=40063;image)
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on April 03, 2013, 04:43:25 PM
HELP! I need a m7 x .8 Tap!

Don is working like crazy to get the lifters done. We are using early Harley adjustors, and just found out the take a m7 x .8 Tap!

If anyone has one they are willing to sell, or knows where I can get one ASAP, it would be much appreciated!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Tman on April 03, 2013, 05:04:21 PM
You sure that is right? I can not find that size anywhere.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on April 03, 2013, 05:09:06 PM
Yep, it's right. I'm guessing Harley used that size to discourage everyone making copies of their work!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: saltwheels262 on April 03, 2013, 08:03:37 PM
the only bastard size thread that I can think of for a Harley
would be 1/4-24 .
it was used for securing lifter blocks to the engine case
and on ( I think ) oil pump studs to the engine case.
also, maybe more apps to the engine .



8 2nite .
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: manta22 on April 03, 2013, 09:38:10 PM
the only bastard size thread that I can think of for a Harley
would be 1/4-24 .
it was used for securing lifter blocks to the engine case
and on ( I think ) oil pump studs to the engine case.
also, maybe more apps to the engine .

1/4-24???????????? Sounds like they couldn't decide on a 1/4-20 or a 1/4-24 so they took the average between the two. I've never encountered a 1/4-24.

Regards, Neil  Tucson, AZ
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: manta22 on April 04, 2013, 04:05:15 AM
the only bastard size thread that I can think of for a Harley
would be 1/4-24 .
it was used for securing lifter blocks to the engine case
and on ( I think ) oil pump studs to the engine case.
also, maybe more apps to the engine .

1/4-24???????????? Sounds like they couldn't decide on a 1/4-20 or a 1/4-24 so they took the average between the two. I've never encountered a 1/4-24.

Regards, Neil  Tucson, AZ

Woops-- make that 1/4-28
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: pops29 on April 04, 2013, 10:10:29 AM
  It is a 9/32 - 32   dam close to .8 pitch --  I did the cardinal sin " assumed " metric after I put the calipers to it. I re-checked it this morning with the mic. and a 32 pitch gauge.     Thanks for the input guys !!!!!!!!  :cheers:javascript:void(0);
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: RichFox on April 05, 2013, 09:01:56 PM
Interesting lifter arrangement in a Bantam. 
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: pops29 on April 05, 2013, 11:19:42 PM

  This is basically what I am doing less the bushings.  Thanks for the pics   it is helpful     
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on April 06, 2013, 08:38:31 PM
Rich, interesting that the Bantam has almost exactly what we imagined! Guess the idea wasn't original after all!

Fron Don this morning: 

Here is the final fit.. Valves adjusted and adjuster locked down using standard 7/16" wrench -- tight fit - But I know Dale should be able to get a good fit at final assembly. So I am off to build the Real parts !

Randy and I met at John K's today, and the spoiler is done and mounted. John and I will meet in the morning, to get the spill plates installed. John has done a great job on the aero mods, and Randy is an animal when it comes to fabbing and installing stuff!

Don, Randy, and John- Great Job!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on April 06, 2013, 09:36:52 PM
Adjustable spoiler is on, and spill platesill be added in the morning!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on April 06, 2013, 09:37:55 PM
Spoiler and a little front end progress!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: SPARKY on April 07, 2013, 09:17:38 AM
 :-o  :cheers:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Stainless1 on April 07, 2013, 09:39:39 AM
Wow, talk about transformation... looking good Guys

Buddy, see you soon, let me know
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Stan Back on April 07, 2013, 02:00:09 PM
Buddy wearing a formal shirt?  Must be a big occasion.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on April 07, 2013, 05:04:58 PM
Stan, I guess someone forgot to tell me that a black tee wass formal! :-D

Spill plates are installed. John now is going to make the pieces that go from the spill plates to the body.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Elmo Rodge on April 07, 2013, 05:33:43 PM
Buddy, it's not that it's black. It's because it has sleeves.  :cheers: Wayno
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Tman on April 07, 2013, 09:19:14 PM
Buddy, it's not that it's black. It's because it has sleeves.  :cheers: Wayno

Maybe it was sleeveless but still had a collar?
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on April 07, 2013, 10:19:01 PM
Buddy, it's not that it's black. It's because it has sleeves.  :cheers: Wayno

Maybe it was sleeveless but still had a collar?

C'mon guys! Everyone knows the sleeves get cut of at 70deg, the collar at 75deg-I'm not a total barbarian! :-D
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Frankie7799 on April 08, 2013, 04:40:47 PM
Looks like a Pro-Mod now  :-D Great work
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: krusty on April 09, 2013, 02:49:20 PM
     Buddy - Does that biga** spoiler have some way to relieve the pressure buildup if the car spins? I have put a car with a similar spoiler in the A2 windtunnel BACKWARDS and it  developed some significant lift with the back end facing forward. (Think of going backwards towards Floating Mountain). Either hinged at the connection to the body or a couple of simple flaps in the spoiler surface (flaps are kept down by the air moving over them but open when it comes from below). Similar to the cowl (NOT roof) flaps on a NASCAR Cup car.     vic

     Edit: I went back and looked at the pics again. I don't think  it will generate as much lift as I saw on the car we had in the tunnel, which had much more surface area hanging behind the bodywork. Still best to be prepared, IMHO. The 325 TO ex-Dale Jr. Busch car spun last year and the spoiler ripped the deck lid off (still had the  NASCAR mandated tethers, though).
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: WZ JUNK on April 09, 2013, 03:35:34 PM
     Buddy - Does that biga** spoiler have some way to relieve the pressure buildup if the car spins? I have put a car with a similar spoiler in the A2 windtunnel BACKWARDS and it  developed some significant lift with the back end facing forward. (Think of going backwards towards Floating Mountain). Either hinged at the connection to the body or a couple of simple flaps in the spoiler surface (flaps are kept down by the air moving over them but open when it comes from below). Similar to the cowl (NOT roof) flaps on a NASCAR Cup car.     vic

     Edit: I went back and looked at the pics again. I don't think  it will generate as much lift as I saw on the car we had in the tunnel, which had much more surface area hanging behind the bodywork. Still best to be prepared, IMHO. The 325 TO ex-Dale Jr. Busch car spun last year and the spoiler ripped the deck lid off (still had the  NASCAR mandated tethers, though).

Actually it may seperate from the car, if the car turns backwards.  In my opinion that would be better than it trying to lift the rear of the car.  I had that in mind when I designed the way the spoiler is fastened to the car.   It is attached  to hold a load from the top and the front but will tear away if the load is from behind.  We are in a gray area here but all you can do is go with what seems to be right.

Hopefully the big spill plates will act like rudders and keep it from spinning.

We are in the middle of a redo of the spoiler today.

John
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on April 10, 2013, 05:48:35 PM
Additional braces are on, and the area between the spill plates and body are filled, per the rules.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Roseville Carl on April 10, 2013, 11:01:40 PM
It is still amazing to me on how this has developed from day one, a simple Cad flathead build, and where its going now, great job Guys!!!!!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Rex Schimmer on April 11, 2013, 10:50:46 AM
Carl you are so right!! If this isn't the biggest case of "mission creep" I don't know what is!

And it is, and has been, so much fun to watch, thanks Buddy and crew!!

Rex
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Tman on April 11, 2013, 10:52:55 AM
Carl you are so right!! If this isn't the biggest case of "mission creep" I don't know what is!

And it is, and has been, so much fun to watch, thanks Buddy and crew!!

Rex

Reminds me of the guy that bought a bronze prop at a yardsale then built a ship around it!~
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Stainless1 on April 11, 2013, 03:46:52 PM
They just have that speed addiction thing... and that always leads to "project creep"  They just need to attend a couple of meetings and things will get better.... first meeting for addicts on the salt is in August....

Hi, my name is Stainless and I am a landspeed addict....
Hi, my name is Buddy and I am a landspeed addict....
Hi, my name is  (your name here) and I am a landspeed addict....
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on April 12, 2013, 12:58:19 PM
Haha! I'm not sure 12 steps will cure what we have!


Don has been busy perfecting the lifters. Dema signed off on them, so we are now ready to go to production!

From Don: 

first pic-- oil grove and oil hole to hollow center

# 2  drilled the length of lifter to cross oil hole

# 3,4,5,6  crossed drilled one side only to feed roller bearings on wheel  I will plug weld non needed holes

# 7,8,9ect bored 1/2" diam hole x 1-1/2" deep in body made a top insert ( will change to a flanged insert ) to press in the body and tac weld at assy

 also the flats are .040 deep on each side
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on April 12, 2013, 01:03:26 PM
...and a few more pics.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Tman on April 12, 2013, 01:13:27 PM
I don't think the #2 pencil makes a very good engine component but the rest of the stuff looks nice!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Jack Gifford on April 13, 2013, 12:58:43 AM
What hardness will the lifter bodies be heat-treated to? (I think you said they are 10xx mild steel?). Surface-smoothing before or after heat-treat?
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: pops29 on April 13, 2013, 10:24:29 AM

  The materials we will use has changed -- Because of the mods to the lifters we now will use  8620  heat treated
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: pops29 on April 13, 2013, 10:26:09 AM


  The heat treatment will go to 50-55 rc and ground finish
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on April 13, 2013, 11:24:39 AM
The cam is done, so I thought I'd share the cam info.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on April 13, 2013, 11:29:37 AM
...a little more info.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Jack Gifford on April 14, 2013, 01:37:38 AM
pops- thanks.

Any idea what the maximum negative acceleration is of those cam lobes?
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on April 14, 2013, 04:09:38 PM
pops- thanks.

Any idea what the maximum negative acceleration is of those cam lobes?

Jack,

I don't have that information. To be honest, I'm not knowledgeable enough to know what I'd use the information for!

So, what would I use the info for?
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Jack Gifford on April 15, 2013, 01:50:39 AM
To calculate minimum required spring force for a particular combination of engine speed and valvetrain mass.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: lsrjunkie on April 16, 2013, 05:18:24 PM
Nice bump stick Buddy! Those lifters are pretty trick as well! I may not have ole Hank in tow in August but I will darn sure be there to see this thing run!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on April 23, 2013, 07:58:46 PM
Joe, if you're at the salt with no car, come hang out with us-we at least always have lots to drink! LOL!

Don just sent me this update-way to go, Don!

--------------------------------------------------------------------------------

Small update for all.. I set up the heads and removed the o ring we were using ( .031 ) so we can run a larger wire ( .041 ) with a receiver grove in the block .
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Jack Gifford on April 24, 2013, 01:33:50 AM
So- how do you cut those irregularly shaped O-ring (and receiver) grooves- CNC mill? If so- did you translate the shapes into a series of geometric segments (arcs, etc.)?
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Roseville Carl on April 24, 2013, 05:50:55 PM
wizardry just plain wizardry, plus Dons a master.........
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Geo on April 24, 2013, 08:08:37 PM
Quote
wizardry just plain wizardry
   :cheers:

There is a lot on this car that makes me think about the things I am doing. Are you going to run the engine on the engine dyno, chassis dyno or go straight to the salt?  Put me down for "over"!  :-D

Geo
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Milwaukee Midget on April 24, 2013, 11:09:26 PM
We've got to call Dema and tell him to put some ink in his printer . . .
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Roseville Carl on May 05, 2013, 12:01:38 PM
so whats the latest Buddy  :?
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on May 07, 2013, 08:31:50 PM
Carl, Don is finishing the final version of the lifters and blocks, and Kenny will hone the cylinders and install the cam bearings on Monday.

I scheduled the dyno with John Beck yesterday, and we will be there July 1-3rd.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Roseville Carl on May 08, 2013, 11:02:37 PM
Well Dodge thats good news will see ya then!!!!
Will bring some Hop Rod Ale too
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on May 11, 2013, 01:39:44 PM
Carl, it will be great to see you again!

John has been making great progress! He still has some final fitting and mods to make, but things are looking good!

He has the rear enclosures done on the front mods, but still has to cut some vents into them.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Glen on May 11, 2013, 02:49:03 PM
Buddy, looking awesome. :cheers:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: jo maoma on May 11, 2013, 03:38:47 PM
are the fenders a one off pieces or did you start with an "off the shelf" fender blank...
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: WZ JUNK on May 11, 2013, 06:52:33 PM
are the fenders a one off pieces or did you start with an "off the shelf" fender blank...

I started with the air dam from the top of a tractor trailer truck.  I thought it would save materials and time.  I know it saved a lot of materials but I am not sure if it saved any time.  It is starting to come together.  This week I will build the area in the center where the fenders meet the grille and some other stuff.  We got the fenders dzus to the body today.   The bottom 4 inches of the front will be cut off and then reattached a couple of inches higher.  It will a removable piece, like an air dam,  so that the tow bar can be attached to the car.

John
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Elmo Rodge on May 11, 2013, 10:37:43 PM
John, it never saves any time.  :-P Good job, though. See you in August? Wayno
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: gkabbt on May 12, 2013, 06:22:40 AM
John, GREAT job so far! Starting to look real mean!  :cheers:

Gregg
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: gkabbt on May 13, 2013, 11:29:32 AM
HAPPY BIRTHDAY.....BUDDY!

I hope this birthday is a good one and also hope you have many more!  :cheers:   

Gregg
 
 
 
 
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: lsrjunkie on May 13, 2013, 12:06:45 PM
Just got my Flat Cad shirt in the mail!  :-D Not used to getting a present on somebody elses birthday. Thanks Buddy!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: tauruck on May 13, 2013, 12:17:42 PM
HAPPY BIRTHDAY.....BUDDY!

I hope this birthday is a good one and also hope you have many more!  :cheers:   

Gregg
 
 
 
 

From me too. Have a good one bro. :cheers:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Glen on May 13, 2013, 12:47:48 PM
Buddy, HAPPY BIRTHDAY, I'll Tip a cool one for you. :cheers:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on May 13, 2013, 07:06:30 PM
Thanks guys!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Stainless1 on May 13, 2013, 10:56:11 PM
Happy Birthday Buddy, when you passing through next time?  I'm still in for a couple of XL t's and taking you to the local for beer and pizza.  
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Milwaukee Midget on May 13, 2013, 11:09:54 PM
The young man is celebrating his birthday on the outskirts of Beerhaven, tonight.

Yeah, that's a really sad way to grow older . . .

Work prevents me from being the host I would like to be, but for dinner on Tuesday, his money's no good in these parts . . .  :cheers:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Stainless1 on May 13, 2013, 11:13:28 PM
Work is the curse of the drinking class  :-o  :cheers:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Milwaukee Midget on May 13, 2013, 11:32:34 PM
Work is the curse of the drinking class  :-o  :cheers:

Never used to be that way around here.  Working and drinking used to go hand in hand, and to good effect, I might add.

Back in the hey-day of this fair city, the bricklayers would hand kids empty pales and cash, send them down to the bar, and they would return with the elixir. 

The brick and stone work in downtown Milwaukee is world class.

MADD's Milwaukee office is located in just such a building . . .
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: robfrey on May 13, 2013, 11:41:58 PM
Happiest of all Happy Birthdays Buddy!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on May 18, 2013, 07:52:06 AM
While I was in the Milwaukee area, Chris and Mark were able to join me for dinner, brew, and bench racing!

Thanks guys, I had a great time!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on May 18, 2013, 01:02:12 PM
I'm sure Don will weigh in later, but in the meantime, he has the block on the CNC for the O-rings!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: manta22 on May 18, 2013, 01:05:29 PM
Work is the curse of the drinking class  :-o  :cheers:

Never used to be that way around here.  Working and drinking used to go hand in hand, and to good effect, I might add.

Back in the hey-day of this fair city, the bricklayers would hand kids empty pales and cash, send them down to the bar, and they would return with the elixir. 

The brick and stone work in downtown Milwaukee is world class.

MADD's Milwaukee office is located in just such a building . . .

I think that used to be called "rushing the growler"

Regards, Neil  Tucson, AZ
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Milwaukee Midget on May 18, 2013, 01:20:45 PM
Buddy, it was great finally meeting you.  We'll catch up in August.  Keep that Caddy glued together on Dyno Day - I want to HEAR it run!

When that minor wind and drizzle passed through Pewaukee, I didn't really give it much thought, but when I got home, it was clear that the winds had really picked up in my neighborhood.  A huge maple had been blown down a few houses up from us, blocking the street, and the neighbor's house across the street deposited about a half of a square of shingles into our yard!

Our place is fine, so clearly, drinking with Mr. Walker is GOOD LUCK!   :cheers:

Chris


Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on May 19, 2013, 01:29:31 PM
The thrash for Quest 200 continues, on all aspects of the car! Everyone involved are pretty amazing!

Don, I know you have cool updates, so where are they?? :-D


From John K:

I made the support for the front of the fiberglass this morning. It slips into two receivers and is held in place by one dzus on each side.

I will build the flanges on edges of the fenders where the meet the body tomorrow or Tuesday.  This should be the last big fabricating process.  I will also work on the removable panel at the lower front.   I am nearing the end of the fiberglass work.  I will spend some time smoothing the whole mess out.  I am going to wait until Randy gets all of the front suspension completed before I make the final cut on the front wheel openings.
 
John, your aero mods are wickedly great! Thanks again! :cheers:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Freud on May 19, 2013, 02:49:35 PM
Forget the fiberglass...............

Go in business making those dropped axles and the entire "gotta have one of those" streeters will buy one.


FREUD
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Glen on May 19, 2013, 02:56:56 PM
As always nice fabrication. I think you should use more then two dzus fasteners,inspection may want something to assure if one comes loose one may not be enough :cheers:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on May 20, 2013, 10:07:53 AM
Glen, we may have to add more dzus fasteners, but the wind pressure will keep it in place. If we end up backwards, it's coming off no matter what we do, I think!



The following is from Don:

Spent Saturday finishing the machining on the block. I cut the receiver grove
for the O ring at my friends shop around the corner from my shop. Dennis from
Tech Machining just purchased this BIG ASS MACHINE   HASS - VF5SS

To set up the block I first laser cut and welded an angle plate. After getting it in the machine we indicated the block within .001.

Once it was in tolerance I mounted the head to the block and indicated the 2 locating pins in the heads. We machined 2 1/4" locating pins in them when we re cut the o rings in the head for larger wire so we would have absolute positioning every time we installed the heads. we set the pins within .0002 to .0003 alignment of the block. After locating everything the cutting started.

The set up of the block in the machine took 2 hours + but the cutting run time only took 14 min that was including the locating pin hole -- All in all the grove turned out great !!



Wow! REALLY nice job, Don! Thanks again
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on May 20, 2013, 10:10:24 AM
Here are the o-ring receiver grooves.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: SPARKY on May 20, 2013, 10:44:14 AM
 :-o  :cheers:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Elmo Rodge on May 20, 2013, 11:15:35 AM
Buddy, regarding the locating pins, is one of them set up with a slotted busing to allow for different expansion rates of the metals?
by the way, looking really good. Wayno
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: lsrjunkie on May 20, 2013, 05:58:56 PM
Outstanding Buddy! That is some excellent machine work!  :-o
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on May 20, 2013, 09:28:19 PM
Buddy, regarding the locating pins, is one of them set up with a slotted busing to allow for different expansion rates of the metals?
by the way, looking really good. Wayno

No, Wayno, they're not. With the block and heads 0-ringed, I think it's critical to keep this head from moving, in order to seal it.

Of course, I'm not always right! :-D
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: maguromic on May 20, 2013, 10:03:55 PM
Buddy, You and your teams work is amazing.  I cant wait to see the end result this year on the salt.  Tony  :cheers:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: SPARKY on May 20, 2013, 11:44:11 PM
Salt Heii---I cant wait to hear the dyno stuff!!!!!!!!!!!!!!!!!!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Jack Gifford on May 21, 2013, 12:53:48 AM
... regarding the locating pins, is one of them set up with a slotted busing to allow for different expansion rates of the metals?...
If the block/heads can move with respect to each other while clamped by the head fasteners, something would be drastically wrong.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Jack Gifford on May 21, 2013, 01:03:22 AM
... I think it's critical to keep this head from moving...
That's the job of the clamping force of the torqued head fasteners. The two little dowels are simply for precise positioning during assembly.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on May 21, 2013, 05:47:06 AM
Jack, you're right.

We didn't have dowels last year, but we had tight head bolt clearances, assuring us of precise positioning. Installing/removing heads with tight head bolt tolerances is an extreme PIA, and time consuming. We added the dowels, and opened up the head bolt tolerances slightly, to insure we still had the needed alignment, and to make installation and removal easier.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Tman on May 21, 2013, 10:15:18 AM
Jack, you're right.

We didn't have dowels last year, but we had tight head bolt clearances, assuring us of precise positioning. Installing/removing heads with tight head bolt tolerances is an extreme PIA, and time consuming. We added the dowels, and opened up the head bolt tolerances slightly, to insure we still had the needed alignment, and to make installation and removal easier.


Yeah, flatty heads can be a pain even with loose tolerances to pull.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on May 21, 2013, 07:02:22 PM
John K.(WZ JUNK) Has been slaving away! From John:

Front aero is done except for the black plastic on the bottom.
 
I will work on the flange for the hood sides and the grille area tomorrow.  This is nearly last area of fabrication.  The fit around the grille will be the last big thing.  It is all down hill now.

Looking good, John!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: vintagehotrod on May 22, 2013, 09:54:22 PM
Buddy , you are out of control , what an amazing effort. I will do my best for you on dyno day. I would hate to be the guy that sinks this ship. You are doing everything right , cyl pressure will double from straight alky to just 20% with a blower. We will feed it right , plenty of fuel.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on May 23, 2013, 09:19:42 AM
John, I'm really looking forward to the trek to Chico!

I learned a lot last year, and look forward to your help and mentoring again this year.

And again, a BIG thanks to Stan Back for directing me to you-he was right, in saying you were the man we needed to help us! :cheers:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on May 23, 2013, 12:50:40 PM
John has been busting his hump!

From John:

What the starter at the starting line will see.

I will work on the fit around the grille opening and the front seam where the two fenders meet next.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: redhotracing on May 23, 2013, 01:35:57 PM
Buddy- maybe I missed this, but how much whp
are you looking for with 20% nitro? How much are
you estimating to need to reach your goal of 200?
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on May 23, 2013, 01:58:42 PM
Well, all things being equal, I think we need about 800. John and Sumner think I probably need more.

Now, that would be running exactly as before, with no changes. I'm hoping aero, along with a full bellypan, will allow us to run with less HP, because I think we'll struggle to get 800 on the dyno, and have the engine survive, let alone get that much to the ground.

We had problems getting the HP to the ground, and really saw little gains after the low 160's.I think the car was floating in the rear, so I have high hopes for the bellypan. Last year, the bellypan only covered the front 60% of the car.

I have no idea if all of this will get us the results we need, but if we fall short of our goals, it sure won't be for lack of trying!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: SteveM on May 23, 2013, 03:05:00 PM
It looks extremely mean! :cheers:

Steve
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Koncretekid on May 23, 2013, 06:51:45 PM
Buddy,
I think aero is going to achieve a lot more than you think.  I would be cautious with the increase in HP until you see how much you gain with the body changes.  There's always next year -- if you don't blow the motor.
Tom
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Pete1 on May 23, 2013, 07:07:44 PM
Buddy,
I think aero is going to achieve a lot more than you think.  I would be cautious with the increase in HP until you see how much you gain with the body changes.  There's always next year -- if you don't blow the motor.
Tom

You guys talk like a bunch of dimwits...You build them to race, not to idle around and save it for next year.
If you build them right they don't blow.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: SPARKY on May 23, 2013, 07:16:01 PM
Well whoop te do---I guess that explains my problem--let's see-- I dim witted--- for I blew up several--that means they were not RIGHT ---dumb me I thought they  didn't like 7900 for the last mile!!!!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Pete1 on May 23, 2013, 07:28:41 PM
Well whoop te do---I guess that explains my problem--let's see-- I dim witted--- for I blew up several--that means they were not RIGHT ---dumb me I thought they  didn't like 7900 for the last mile!!!!

You can't go past the valve train for very long.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on May 23, 2013, 07:31:51 PM
Well,dim witted or not, I believe every engine will only withstand so many RPM's, and so much cylinder pressure. Then, BOOM!

I think Tom's advice of being cautious with our HP increases, and seeing how much more we may need on the salt, is a helluva lot better than just adding HP until we think we have enough, then BOOM! Kitty litter time!

Pete, you've been building engines and racing a long time-I'll bet you've blown up your share of engines, correct?

Sparky, I'm sure you're dim witted-we all must be! I really can't think of a better explanation for what we are all doing here! LMAO!
 :cheers:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: RichFox on May 23, 2013, 07:35:28 PM
Buddy,
I think aero is going to achieve a lot more than you think.  I would be cautious with the increase in HP until you see how much you gain with the body changes.  There's always next year -- if you don't blow the motor.
Tom

You guys talk like a bunch of dimwits...You build them to race, not to idle around and save it for next year.
If you build them right they don't blow.
LOL. Tell us how you really feel.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Milwaukee Midget on May 23, 2013, 07:36:34 PM
You guys talk like a bunch of dimwits...You build them to race, not to idle around and save it for next year.
If you build them right they don't blow.

Pete, please.  

Read through this diary.

They have built this engine right.

The nature of this engine build is so out-of-the-ordinary, so extreme, and takes into account so many anomalies unique to the basic design that Buddy and the guys are completely into uncharted territory.

They are right at the edge with this one - NOBODY has pushed a Caddy Flat-head this far.

And because there is no precedent, there is the possibility of failure.

Fordboy and I had the pleasure of sharing dinner with Buddy last week.  Buddy is keenly aware of the potential for failure with this set-up.  Having watched this build from day one, I can tell you that if it should fail, it will have nothing to do with failing to build the engine right.  

I find your comment offensive - or at least, ill-informed.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on May 23, 2013, 07:47:36 PM
Chris, thanks for the kind words, but there is no need for anyone to be too offended.LOL!  Pete's really a good guy, although rough in his verbal delivery sometimes!

Pete ran at B'ville in the early fifties, and went with us in 2011. In fact, it was Pete's SBC that we used that year to shake the car down with.

Pete builds some elephant Ford flatheads-real monsters, and well, you can see he's pretty opinioned! Lol!

Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Pete1 on May 23, 2013, 07:59:04 PM
You guys talk like a bunch of dimwits...You build them to race, not to idle around and save it for next year.
If you build them right they don't blow.

Pete, please.  

Read through this diary.

They have built this engine right.

The nature of this engine build is so out-of-the-ordinary, so extreme, and takes into account so many anomalies unique to the basic design that Buddy and the guys are completely into uncharted territory.

They are right at the edge with this one - NOBODY has pushed a Caddy Flat-head this far.

And because there is no precedent, there is the possibility of failure.

Fordboy and I had the pleasure of sharing dinner with Buddy last week.  Buddy is keenly aware of the potential for failure with this set-up.  Having watched this build from day one, I can tell you that if it should fail, it will have nothing to do with failing to build the engine right.  

I find your comment offensive - or at least, ill-informed.

WHO is ill informed?????
I have been part of this whole thing from the beginning...REMEMBER, WE RAN MY ENGINE THE FIRST YEAR.
So far as I recall the flat cad has only gone .3 mph faster than my stock unblown SBC crate engine at Bonneville..
I wasn't trying to be a smart ass, I was just telling it like it is...That flat cad is NOT going to blow even with pop in it.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Milwaukee Midget on May 23, 2013, 08:02:48 PM
Pete, you have my apology.  It looked like an impending donnybrook, and I love those.

I didn't know the history - which means it's probably time for ME to re-read this build dairy!  :|

Stop by during Speedweek - I owe you a beer . . .

My grandmother had a refrigerator magnet that read -

"Lord, let my words today be sweet and tender -

Because tomorrow, I may have to eat them."

Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Stan Back on May 23, 2013, 08:10:06 PM
Pete --

You ran almost as fast as the Cad, right?

But didn't you go all the way to the 4 or 5 or ???
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on May 23, 2013, 08:13:09 PM
Pete, we ran 13 MPH faster than the SBC with the flatcad top end-166MPH. The record was .3 MPH faster than top speed with the SBC, because that record was set between the 1-2 miles.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Pete1 on May 23, 2013, 10:44:22 PM
Pete --

You ran almost as fast as the Cad, right?

But didn't you go all the way to the 4 or 5 or ???

I went past the turn out road once because the chute didn't open and between fiddling with that and pumping the brake pedal which there was NO brakes till I pumped about 15 times, yea, I went a bit too far once.
And besides all that, I broke a bone chip off my knee with the shift lever because there wasn't enough clearance for a knee between the roll cage brace and the lever.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Pete1 on May 23, 2013, 10:47:12 PM
Pete, we ran 13 MPH faster than the SBC with the flatcad top end-166MPH. The record was .3 MPH faster than top speed with the SBC, because that record was set between the 1-2 miles.

 I know all that...I was just poking you with the needle. LOL
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Pete1 on May 23, 2013, 10:50:59 PM
Pete, you have my apology.  It looked like an impending donnybrook, and I love those.

I didn't know the history - which means it's probably time for ME to re-read this build dairy!  :|

Stop by during Speedweek - I owe you a beer . . .

My grandmother had a refrigerator magnet that read -

"Lord, let my words today be sweet and tender -

Because tomorrow, I may have to eat them."


No apology necessary and I'll drink beer with you any time only it's on me...
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Tman on May 24, 2013, 10:50:34 AM
Pete/Buddy, we miss you in the Tuesday chats
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Frankie7799 on May 24, 2013, 02:24:04 PM
Pete definitely comes across as a salty old racer, nothing wrong with that. Have met many of them over the years.  :cheers:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Pete1 on May 24, 2013, 04:19:56 PM
Pete/Buddy, we miss you in the Tuesday chats

I look in several times a week but I guess everyone's on a strict schedule and can't get there any other time.
We need to train people to leave a chat window open all the time and make it about an inch square down in the corner of their screen. Then they  can see if anyones on any time they are at the computer.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Tman on May 24, 2013, 04:31:27 PM
Pete/Buddy, we miss you in the Tuesday chats

I look in several times a week but I guess everyone's on a strict schedule and can't get there any other time.
We need to train people to leave a chat window open all the time and make it about an inch square down in the corner of their screen. Then they  can see if anyones on any time they are at the computer.

The main activity is the 7-8PM MTN Window on Tuesday nights. Our club chats were open each night and it got to the point where no one showed up so we went back to a scheduled time.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Pete1 on May 24, 2013, 05:01:01 PM
Pete/Buddy, we miss you in the Tuesday chats

I look in several times a week but I guess everyone's on a strict schedule and can't get there any other time.
We need to train people to leave a chat window open all the time and make it about an inch square down in the corner of their screen. Then they  can see if anyones on any time they are at the computer.

The main activity is the 7-8PM MTN Window on Tuesday nights. Our club chats were open each night and it got to the point where no one showed up so we went back to a scheduled time.

Yup, I can understand that. Most car people only want to talk about one subject and there is only so much to say.
I have found over the years and moderating a few chat rooms that some people just don't talk much. Others would like to talk a lot but lack the typing skill to keep up. Usually the ones that can carry the room can (and will) talk on any subject that the group may get side tracked on. One vintage car forum I go to gets talking on hunting, photography, planes and many other subjects quite often. It's like real life, people will migrate to the forum they are comfortable with.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: jl222 on May 24, 2013, 07:50:23 PM
Buddy,
I think aero is going to achieve a lot more than you think.  I would be cautious with the increase in HP until you see how much you gain with the body changes.  There's always next year -- if you don't blow the motor.
Tom

You guys talk like a bunch of dimwits...You build them to race, not to idle around and save it for next year.
If you build them right they don't blow.

  Your superior knowledge is greatly needed for all those ''dimwits'' in Top Fuel :roll:

             JL222
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Pete1 on May 24, 2013, 08:08:02 PM
Buddy,
I think aero is going to achieve a lot more than you think.  I would be cautious with the increase in HP until you see how much you gain with the body changes.  There's always next year -- if you don't blow the motor.
Tom

You guys talk like a bunch of dimwits...You build them to race, not to idle around and save it for next year.
If you build them right they don't blow.

  Your superior knowledge is greatly needed for all those ''dimwits'' in Top Fuel :roll:

             JL222

Need I remind you, I had one of if not THE first top fuel dragster in 1951.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Koncretekid on May 24, 2013, 09:03:04 PM


Need I remind you, I had one of if not THE first top fuel dragster in 1951.

Pete,
Thank you for that reminder - - I had forgotten.  Then, again, I was only 4 years old at that time and probably quite dimwitted! :-D

But seriously, I am impressed that you were racing fuel dragsters at that time, and I assure you there's no hard feelings.  And I continue to be impressed with the scope of knowledge presented on this forum.
Tom
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Roseville Carl on May 24, 2013, 09:12:51 PM
dim witted like a fox.......... :-D
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: BoredAndStroked on May 25, 2013, 08:34:49 PM
Forget the fiberglass...............

Go in business making those dropped axles and the entire "gotta have one of those" streeters will buy one.


FREUD

Hey Freud, I like your way of thinking . . . a new business in the making - right in front of us!   Hope to see you this summer on the salt!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: BoredAndStroked on May 25, 2013, 08:39:48 PM
Buddy , you are out of control , what an amazing effort. I will do my best for you on dyno day. I would hate to be the guy that sinks this ship. You are doing everything right , cyl pressure will double from straight alky to just 20% with a blower. We will feed it right , plenty of fuel.

Yo John - can't wait to see you again and see what the beast will do!  Buddy and I were chatting this evening -- the biggest challenge will probably be keeping Buddy from pouring the frickin can to it!

I'm busy plumbing the down-nozzles and setting up a new ignition system.   We're going to make it 'easy' to switch between our high-amp Vertex magneto and a MSD engine management setup.   I'll have both setups for the dyno - so we should be good to go.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on May 26, 2013, 09:53:00 AM
the biggest challenge will probably be keeping Buddy from pouring the frickin can to it!

Tip the Can! Tip the can! 800HP, baby! :evil:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Pete1 on May 26, 2013, 10:52:59 PM
the biggest challenge will probably be keeping Buddy from pouring the frickin can to it!

Tip the Can! Tip the can! 800HP, baby! :evil:

Back up on the can and add a bit of picric acid.
Be the only one on the salt running purple fuel.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Roseville Carl on May 27, 2013, 12:43:42 AM
can't wait to hear this pig run!!!........................ :-o
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on June 01, 2013, 07:28:26 PM
Aero work is done!

Hopefully, we can get WZ JUNK to post you up some fresh pics and info! John, I can't begin to thank you enough for what you have done! :cheers:

Engine and parts are now in Ohio, so Dale will be next up with the engine assembly and changes, such as piston oilers and roller cam!

Randy will be posting up some mechanical changes and paint work!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: BoredAndStroked on June 02, 2013, 09:09:24 PM
Have been working on setting up a second set of injector nozzles - 'down nozzles' in the manifold.  We'll have a pop-off valve that will actuate at a certain fuel pressure to start feeding the down nozzles.  Having individual nozzles that spray into the port should help us get a consistent fuel distribution.  We'll still put 40% or so through the hat injector (to cool the blower, etc).

Anyway - here are some pictures of all the dang stainless lines I made to plumb this crap in.   Takes a lot more time than one plans - even when you have the right tubing tools! 

Will be posting a lot of engine assembly stuff in the next couple weeks - the 'torch has now been passed to Ohio' . . . time to haul butt and get it done!

We're all thrashing like mad- trying to get everything done, make the dyno, get all are parts from all over the USA in the right spots, etc..   Then there is that dang 'work thing' that gets in the way!   :-(

Here are some pictures of the lines - no biggie, just takes a lot longer to make than one thinks.

B&S

Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Freud on June 02, 2013, 09:25:30 PM
All of the lines on Target 550 were first made with soft tubing and then duplicated with stainless.

You foto presentation is first class. The diary is excellent.

THANKS

FREUD
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: BoredAndStroked on June 02, 2013, 09:29:18 PM
All of the lines on Target 550 were first made with soft tubing and then duplicated with stainless.

You foto presentation is first class. The diary is excellent.

THANKS

FREUD

What I use is 3/32 gas welding rod - is nice and stiff and it fits inside the injector nozzles/fittings for alignment.   Then I just trim it to exact length (not inside the nozzles) and make the stainless stuff to match the patterns.   I use the same patterns on the left and right sides - just bend the one angle the opposite direction.   Works out pretty good!

Appreciate the comments as usual!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on June 02, 2013, 11:04:28 PM
Dale, it's looking good, my friend! You have a lot to do by July 1, but I know you're up to the task!


I have to give props to two guys that have been working their ass off!

Don, who has done an extreme amount of precision work, on the girdle, mains, lifter blocks, and lifters. Don, thank you sooo much-you're the best! :cheers:

John K, who has been equally busy, doing all of the aero work! John, words can never express my gratitude, but I'll try-THANKS!

From John:


The inside edges of the fenders have flanges made to fit the car. First the side of the car was masked off. Fiberglass was applied to the sides of the car and the fender was installed. Then the edges of the fenders were fiber glassed to the still wet fiber glass on the car. The fender was made to fit the car. Soft foam tape will be applied to the flange to seal the fender to the car.

 Randy just arrived to pick up the car.

 John
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on June 03, 2013, 09:19:16 PM
I'm in Kansas and Missouri for a week, so I stopped to see Randy (wrenchbender), and plan some work days with him. Randy had a car painter he wanted me to talk to, so we headed to Webb City.


I'm happy to announce that our car will have shiny new paint, and a new sponsor logo,to go with the new aero mods! Max at Liles Performance & Auto Body, Webb City, MO., has graciously agreed to sponsor the paint and body work!


Randy, thanks for the introduction! Max, THANK YOU very much, and welcome to FlatCad Racing! :cheers:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: maguromic on June 04, 2013, 12:03:41 AM
Buddy, The car is looking good.  Just a thought (I don't know if the rules allow it in your class), wouldn't it be better for aero if you closed the gap between the two fenders and ran the running boards and the add a vertical plate down from the boards to seal everything? I think I mentioned it before, but what about some tire scrubbers?  They do work long as you set them up at full droop on the suspension. Tony
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: WZ JUNK on June 04, 2013, 06:01:51 AM
Buddy, The car is looking good.  Just a thought (I don't know if the rules allow it in your class), wouldn't it be better for aero if you closed the gap between the two fenders and ran the running boards and the add a vertical plate down from the boards to seal everything? I think I mentioned it before, but what about some tire scrubbers?  They do work long as you set them up at full droop on the suspension. Tony

I am making skirts to fill in the area you mentioned.  I just have not had time to work on them.  Hopefully work will start on them today.  The skirts will be legal in the Competition Coupe Class.  When they run the car in Altered all of the streamlining stuff will be removed.

John
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: WZ JUNK on June 04, 2013, 01:06:40 PM
I made the side skirts this morning.  Buddy stopped by took them with him.  As far as I know the last thing I have to do is to make the finish cut for the front wheel openings.  When Randy gets the front axle and spring setup I will make the cuts.  My part of this project is about done.

I start on Hooley's Studebaker on Monday.  I am lengthening the front end two feet and building and air intake for him.

John
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: GH on June 05, 2013, 04:23:54 PM
John, you sure are a busy boy.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: WZ JUNK on June 05, 2013, 07:08:59 PM
John, you sure are a busy boy.

Gary, I looked for you at the "Lawn Chair Nationals" NSRA Mid America.

John
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Wrenchbender on June 11, 2013, 10:04:17 AM
I'm making good progress suspension stuff is done parachute
is mounted push bar is made and mounted drip rails are finished and
John got the wheelwells trimmed and will have the flares glassed on
tomorrow anyhow I'm workin on the belly pan and was wondering if there
are any rules as to what can be done at the back as far as enclosing
the rear suspension because it hangs way below the frame rails I read
through the rule book but its about as clear as mudd enclosing it is
not a problem but didn't want to make a mistake and it not be legal
here is a pic of the rear end any suggestions before I get busy you
can see how far down the 4 link and shocks are below the belly pan I
was just gonna make a enclosure around them can the front of them be
pointed or angled at the front for aero also I was thinkin I would
make the boxes wide at the front and narrower at the rear for a Venturi
effect That would help suck the rear of the car down some

Thanks

Jackson

(http://i941.photobucket.com/albums/ad252/Renchbender/1D273557-2019-4576-988B-13E6A18C8854-7190-000004D502F25A14.jpg)

(http://i941.photobucket.com/albums/ad252/Renchbender/8665210C-74DF-4A84-AE90-19F5C0DAE954-7190-000004D4F988EC44.jpg)

(http://i941.photobucket.com/albums/ad252/Renchbender/C036A1BB-706F-453B-900B-880F77436BFD-7190-000004D514A655F2.jpg)



Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: jimmy six on June 11, 2013, 10:36:52 AM
Comp Coupe allows a full belly pan. IMO you can do anything you want to cover the complete bottom of you race vehicle. I doesn't not need to be flat; infact many are not.

IMO you can come down from the sides of your body and crossover covering all driveline and suspension components. That's what a belly pan is and does by definition. If you feel it would not be prudent to enclose the spension springs I see in you picture just cut holes for them. Make sure, if you can, not to have the pan cause lift....Good luck and keep on with you goal......JD
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Wrenchbender on June 11, 2013, 10:45:27 AM
Thanks for the input the existing belly pan that is on there now was made by someone else last year and that's just how it was done it did not cover the rear end and that's what I'm working on fixing this year for many reasons like the ease of removal and installation and most importantly to benifit the car so we can hit that 200 mph mark I welcome all input as this is only the second belly pan I have ever made. Us youngins greatly appreciate the experience and knowledge of more seasoned racers
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: GH on June 11, 2013, 03:15:36 PM
John, I missed the LCN at the Fairgrounds, we were in Yellowstone.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Captthundarr on June 11, 2013, 03:41:02 PM
Chute tether mount looks a bit low? or is it an optical thingy?
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Wrenchbender on June 11, 2013, 03:46:54 PM
It's an illusion it's actually inline with the cam the engine sits really low in this thing and I raised it up from where it was the last two years it's now more in line with the cam than it was thanks for the input though
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on June 11, 2013, 09:14:34 PM
Randy, Garry Odbert was kind enough to send me this pic of how he did his.

Thanks Garry!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Wrenchbender on June 11, 2013, 09:38:19 PM
Thanks Gary for the picture I think I have a good plan John and I discussed it today and I believe we got something that's easily made and very functional with a simple install and removal stay tuned progress is happening
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Freud on June 11, 2013, 10:47:22 PM
Fotos from Reply 1805.

Easier to see now.

FREUD
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: DND on June 11, 2013, 11:11:48 PM
Maybe a slightly domed cover for that hex bolt that holds your push bar roller, not a good place as your chute mounting strap looks like it could get frayed rubbing across the bolt head

Don
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Wrenchbender on June 11, 2013, 11:16:57 PM
Don  I was gonna put a button head Allen bolt in it to fix that plus that grade 2 bolt I stuck in there is not gonna cut the mustard lol it was just what I had laying around oh by the way I dig the Chevy coupe gasser in your a avatar

Thanks

Jackson
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: DND on June 12, 2013, 05:50:24 AM
Hi Jackson

Glad you were thinking along the same lines as it just did not look right.

I can't believe that it was almost 50' yrs ago i ran the 37' for the first time, where in the hell did it go.

Fun car to drive back in the day when you really did shift a car using a clutch petal and shift lever hooked to a T10 4 speed

Pretty neat car with a glass front end - tube axle - alum interior with glass bucket's - coils in the rear plus the American's - 2300 lbs with no weight, had to weigh 3000 lbs at first then 2300

Don
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Ron Gibson on June 12, 2013, 01:38:33 PM
Just a thought. Is there room above the coil overs to mount them higher in the body and higher on the lower attachment? That seems like a lot of area hanging down in the air stream.
On my roadster, (bought from Tony Piner, built by Pete Eastwood & Tony) the rear-end is solid mounted to the frame. It also has four bar with panard and provision for coil overs. The coil overs ( solid link now ) would mount to the top of the axle housing and to brackets on the cage which is in the trunk. The redundancy is redundant. :-D

Ron
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on June 16, 2013, 12:22:23 AM
Don has been busy! Awesome work, Don!

From Don:

The finish heat treating and grinding is complete on them and I fit each one to the lifter blocks today. Now they will be sent off to the wire EDM to cut the slot for the rollers
Title: Re: XXO/BVGC '38 Chevy Coupe Build - New Ignition System
Post by: BoredAndStroked on June 16, 2013, 08:15:56 PM
Been working on the design/setup of a new ignition system for the FlatCad.  We want to run in the modified classes as well as vintage, so we need to have some engine management to go to modified.  The new MSD Power Grid system gives us computer controlled timing, computer configurable boost retard, data acquisition (for advance), etc..

I've not used the newer MSD stuff - really like what I'm seeing so far.  Their software is fairly simple to use (for system setup and data analysis) - has a few quirks, but so does everybody in the automotive business.  (It is not their strength!).

Here are some pictures of the many boxes of stuff on my bench, all the components and the 'test board' that I made to mount/test everything.  

I setup everything on a test board and then use my distributor machine to run the ignitions, see how the software works, ensure that timing is coming in correctly, etc..  I've only just started to use it - still need to test the boost retard, rev limiters, etc..

At the end of this post are four links to YouTube -- have videos to show the setup and actual running.

I'm really looking forward to running the MSD - I'm very excited about how it has performed on the bench.  When you see the size of the spark and how I can adjust the spark gap to see the energy, it is pretty awesome stuff.  The width of the spark is very different from even the very hopped up Vertex mag.   Also, the new Power Grid controller can be used with the ProMag stuff (which has me thinking about next year!).

Links to videos:

1) MSD Power Grid Setup:  http://youtu.be/EmVZZldLpiw (http://youtu.be/EmVZZldLpiw)

2) MSD Power Grid Running:  http://youtu.be/am3og4CkB9c (http://youtu.be/am3og4CkB9c)

3) Vertex Mag Setup:  http://youtu.be/6XHHQctVTIc (http://youtu.be/6XHHQctVTIc)

4) Vertex Mag Running:  http://youtu.be/iYXQVS1_2VA (http://youtu.be/iYXQVS1_2VA)

Gotta love Ole' Sparky - who doesn't like playing Dr. Frankenstein in their shop!   :-D  

Is always fun to fire it up!

B&S
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on June 17, 2013, 10:08:50 PM
Haha! Now we can call it 'FrankinCaddy'!

That spark on the MSD Power Grid looks freakin' hot, and we're going to need it!

Great job, Dale! :cheers:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: SPARKY on June 18, 2013, 11:13:36 AM
interesting, velly velly, interesting
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on June 18, 2013, 04:08:42 PM
Levi Lish of Turbo Performance Products, has just finished the blankets on our headers, and sent me pics!

This should make things easier to work on after a run!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: manta22 on June 18, 2013, 06:49:50 PM
Nice, but they look like a good place to soak up salt when things are wet at Bonneville. Do you plan to unwrap them after every event?

Regards, Neil  Tucson, AZ
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on June 18, 2013, 07:35:55 PM
Neil, it gets wet at B'ville? :-o LOL!

Honestly, I hadn't thought about it-gonna have to now! Thanks!
Title: Re: XXO/BVGC '38 Chevy Coupe Build - New Ignition System
Post by: desotoman on June 18, 2013, 08:47:45 PM

I'm really looking forward to running the MSD - I'm very excited about how it has performed on the bench.  When you see the size of the spark and how I can adjust the spark gap to see the energy, it is pretty awesome stuff.  The width of the spark is very different from even the very hopped up Vertex mag.   Also, the new Power Grid controller can be used with the ProMag stuff (which has me thinking about next year!).

Is always fun to fire it up!

B&S

FWIW just remember that Magneto's don't like large air gap settings in spark plugs, especially on fuel. Something to think about.

Tom G.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on June 20, 2013, 08:12:31 PM
Tom, we ran a .020 gap last year.I need to figure out what plugs and gap we'll run for the fuel.


This just in from Don:

I just finished the slot for the roller in the lifter .. we set it up in the wire EDM. if you look close you can see the small roller oil feed hole directed directly in to the needle bearings on the roller

I will be doing the final clearances on the edges by hand and ship them off to The BIG OL Mad Scientist Dale



Don, as usual, I'm in awe of your work!

VERY nice job! :cheers:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Jack Gifford on June 21, 2013, 01:48:20 AM
How will the lifter wheel axles be retained? I'm curious, because I'm working right now on retention schemes for the axles in my OHC roller followers.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on June 21, 2013, 08:06:48 AM
Jack, we are using Harley lifter wheels and axles. You place the setup in the tool in the pic, then apply 6000 lbs of pressure in a press, to swage the axle ends.

We wanted to use Isky or Jesel rollers, but neither would work with us, and sell use just the wheels and axles.

Hope this helps!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Jack Gifford on June 22, 2013, 01:39:06 AM
Ron Iskenderian sold me EZ-Roll wheels and axles- I'm surprised you couldn't buy them.
Apparently the Harley axles are not hardened on the ends, to allow swaging them over? The Isky axles are that way- I'm just trying to figure a way to emulate the factory's coining dies that do the swaging. I'm thinking of a jig that will resemble the tool you pictured.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Koncretekid on June 22, 2013, 06:39:33 AM
I'm trying to figure out how that tool works.  What are the two recesses at either end for?  I assume the ball in the center of the jig does the swaging.  So what is the drill bit for - - drilling out the swage for doing it over again? :?
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: pops29 on June 22, 2013, 08:55:40 AM

 Yes the balls do the swedging  the jig is also setup for locating and drilling out the axles   it works very easy
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on June 22, 2013, 05:15:52 PM
Ron Iskenderian sold me EZ-Roll wheels and axles- I'm surprised you couldn't buy them.
Apparently the Harley axles are not hardened on the ends, to allow swaging them over? The Isky axles are that way- I'm just trying to figure a way to emulate the factory's coining dies that do the swaging. I'm thinking of a jig that will resemble the tool you pictured.

Jack, you must be better connected than me!

I talked to Ron Iskenderian twice, and also Wayne Jesel-they both blew me off! Luckily, when I need parts for other builds in the future, neither company sells anything that I can’t buy elsewhere.

You’re welcome to borrow the tool, if you think it may help you with swaging your axles.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Wrenchbender on June 22, 2013, 09:26:20 PM
Hello folks here is a quick update on the flatcad sorry for the limited pics but I've been hammer busy doin a lot of things that are not really seen in pictures and to be quite honest I havent thought about taking to many anyways here are a few pics there has been a lot of progress on the car the front end fiberglass parts grille shell hood and stuff is all painted a fresh coat of bright red, the car is now at the paint shop (Liles performance and auto body) getting some body work and fresh paint job as well  we now have a full belly pan that I have fabbed up and am currently in the process of finishing i have also relocated the parachute to the trunk and made a new push bar that is shorter and lower so stay tuned this week there will be a lot going on and progress being made (http://i941.photobucket.com/albums/ad252/Renchbender/B9DAAEB3-B180-4C29-A356-DD7A4B13796C-16494-00000D214333B6F3.jpg)(http://i941.photobucket.com/albums/ad252/Renchbender/DF5BE1A6-ADBF-4196-A276-BE1C3DAC4F89-16494-00000D21494B59BB.jpg)(http://i941.photobucket.com/albums/ad252/Renchbender/C663A0D5-7004-4149-AE07-F7D6EAEAB15F-16494-00000D2016BE99E3.jpg)(http://i941.photobucket.com/albums/ad252/Renchbender/9E418566-1BF3-4684-AD0B-FB46A613ADE8-16494-00000D202CA033EB.jpg)(http://i941.photobucket.com/albums/ad252/Renchbender/C036A1BB-706F-453B-900B-880F77436BFD-7190-000004D514A655F2.jpg)(http://i941.photobucket.com/albums/ad252/Renchbender/FFA43B0F-D334-4E72-B41E-90404E466593-7190-000004EB84702675.jpg)Chrome don't get ya home
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on June 22, 2013, 10:19:55 PM
Outstanding work, Randy! The car is looking great, and I love the carboard fuel tank we mocked up! Don has it, and is working on the tank!

I cant wait to see the paint and new lettering job!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: gkabbt on June 23, 2013, 07:29:08 AM
Buddy,

Wanted to add a little (very little) humor to you thread!  :-D
Sooooo, my wife goes out shopping Friday and comes home with this little trinket for me.
For years, I have used the expression, "When pigs fly out of my Butt" and she said she thought of me when she saw this.
As I was pulling it out of the bag, I immediately thought of you and told her what you have in your sig lines.

So, I present to you and everyone:
Piggy, The Flying Pig.....Protector and Defender of the Realm!.....LOL!

(http://i947.photobucket.com/albums/ad318/GKABBT/Stuff/IMG_4800_zps465f600d.jpg?t=1371985800)

(http://i947.photobucket.com/albums/ad318/GKABBT/Stuff/IMG_4802_zpsf9684f74.jpg?t=1371985839)

(http://i947.photobucket.com/albums/ad318/GKABBT/Stuff/IMG_4803_zpscd2f171f.jpg?t=1371985754)

If Chris (Milwaukee Midget) can have a Traveling Gnome as a Mascot, I guess that Piggy will be mine.

Hope this brings a smile,
Gregg
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Tman on June 23, 2013, 10:35:39 AM
Do I see the drip rails being removed? And did you guys make roof rails?
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on June 23, 2013, 04:14:01 PM
Gregg, that's awesome! I need to get a smaller version, for a hood ornament, that I could take off at the starting line!

Trent, we did trim the drip rails. We had planned on adding roof rails , but simply ran out of time.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Roseville Carl on June 23, 2013, 05:57:07 PM
Dang Buddy she's lookin goooooooooooodddd
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Milwaukee Midget on June 23, 2013, 06:17:16 PM
Buddy,

Wanted to add a little (very little) humor to you thread!  :-D
Sooooo, my wife goes out shopping Friday and comes home with this little trinket for me.
For years, I have used the expression, "When pigs fly out of my Butt" and she said she thought of me when she saw this.
As I was pulling it out of the bag, I immediately thought of you and told her what you have in your sig lines.

So, I present to you and everyone:
Piggy, The Flying Pig.....Protector and Defender of the Realm!.....LOL!

(http://i947.photobucket.com/albums/ad318/GKABBT/Stuff/IMG_4800_zps465f600d.jpg?t=1371985800)

(http://i947.photobucket.com/albums/ad318/GKABBT/Stuff/IMG_4802_zpsf9684f74.jpg?t=1371985839)

(http://i947.photobucket.com/albums/ad318/GKABBT/Stuff/IMG_4803_zpscd2f171f.jpg?t=1371985754)

If Chris (Milwaukee Midget) can have a Traveling Gnome as a Mascot, I guess that Piggy will be mine.

Hope this brings a smile,
Gregg

Gregg, we'll get them together for a photo-op - right next to the Pink Flamingos.

So . . . Buddy . . . We're heading into dyno time, if I'm not mistaken.

What's the word on the engine front?

And by the way - what's the diameter and overall length on those roller rockers?  I might be seeing a British application in my future . . .
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: BoredAndStroked on June 23, 2013, 08:50:39 PM
Have been thrashing like mad to get the FlatCad assembled and ready to go to the dyno - worked all weekend and only have 3 evenings left to complete it.  I hope the Flathead Gods smile on me and allow me to continue without any unknown drama coming my way.   If everything goes like clockwork - I might just make it.   It is down to the wire.   To put this whole things together in about 40 hours of work is quite an effort . . .  I sure hope I can make it  (as I have a normal job too!).

Got the whole lower end, custom main caps, girdle, crank, rods and pistons in.  Chris Daniels has been helping out - without him, not a chance I'd have gotten this far.

Bearings - Some Unexpected Goodness:

A good thing happened, but only because I screwed up on a part number that I gave Buddy for the main bearings.   When you have a billet crankshaft made for a 'normal' engine like a BBC, you'll have 1/8" radius fillets on all the journals - for strength.  Due to this, you normally run narrower 'N' bearings (so they don't get pinched on the fillets).  Last year we just ordered the normal Clevite V-Series mains - with the N suffix.   I didn't even think about it.   

BUT - when I gave Buddy the part numbers for bearings this year - I forgot the 'N".  As luck has it, we don't need the narrow bearings on the flatcad as the journal widths are about 1.250 - much wider than a BBC, so there is room for the wider bearings . . . and they are 11% wider - which is a lot more bearing surface (with 3 mains, we need all we can get!).   Cool!  :rolleyes:

ORings:

As we're going to have higher cylinder pressure this year, we decided to redo the ORing setup - we now have stainless O-Rings in the heads and a receiver groove in the block.  The grooves in the heads are .030 deep and .039 wide - we'll have a .041 stainless wire pushed into them.  The block has a .010 deep receiver groove that is .0625 wide (it is centered on the head rings).

Mains:

Don and Kenny did one hell of a job on the new lower main and girdle setup.  We created a splayed center main cap to replace our square one from last year and also a wider front main cap that picks up the sides or the block.  Also, Don added dowel pins to tops/bottoms of all caps.   This is about as strong as we can make it.   Lets hope the lower end stays together.

Pistons:

You'll see the purdy coatings on the tops, dry film on the sides and a heat shield coating on the undersides.

Rings:

We're running Akerly/Childs HTD 'hellfire' style rings.  1.5, 1.5, 3.0 mm stuff - all from late model Ford mod motors.

To follow are a couple posts with a bunch of pictures from when the block came home earlier this week and during the assembly process - enjoy:


Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: BoredAndStroked on June 23, 2013, 08:52:08 PM
More Stuff:

Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: BoredAndStroked on June 23, 2013, 09:01:25 PM
More Stuff:

Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: BoredAndStroked on June 23, 2013, 09:04:59 PM
Lastly - Slugs in the Holes!

Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: SPARKY on June 23, 2013, 10:53:37 PM
onward---onward---enough to earn the right to have a pig with wings for a hood ornament!!!!!!!!!!!!1
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Milwaukee Midget on June 24, 2013, 12:52:27 AM

Bearings - Some Unexpected Goodness:

A good thing happened, but only because I screwed up on a part number that I gave Buddy for the main bearings.   When you have a billet crankshaft made for a 'normal' engine like a BBC, you'll have 1/8" radius fillets on all the journals - for strength.  Due to this, you normally run narrower 'N' bearings (so they don't get pinched on the fillets).  Last year we just ordered the normal Clevite V-Series mains - with the N suffix.   I didn't even think about it.   

BUT - when I gave Buddy the part numbers for bearings this year - I forgot the 'N".  As luck has it, we don't need the narrow bearings on the flatcad as the journal widths are about 1.250 - much wider than a BBC, so there is room for the wider bearings . . . and they are 11% wider - which is a lot more bearing surface (with 3 mains, we need all we can get!).   Cool!  :rolleyes:



ANYTHING you can do to spread out and even up the loads is going to make a difference.  As long as you're not pinching on the fillet, that IS good news.

Don't let the deadline cause you to cut corners - and I know I didn't need to say that, but it's just SO DARNED EASY to skip a step when you're trying to make a deadline on the down-hill.

Best of luck on the dyno - and don't throw it all away in the bull pen.  I expect to HEAR this thing this year!  :wink:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Jack Gifford on June 24, 2013, 01:18:40 AM
... what's the diameter and overall length on those roller rockers?...
Flathead ain't-got-no rocker arms. Maybe you're thinking of his custom-fabricated roller lifters?

Buddy- Wouldn't heat-shield coating the pistons' undersides negate the oil-cooling aspect? Or did you not implement the oil-spray setup? Heat-shield on the tops of the piston crowns is very desirable.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on June 24, 2013, 07:02:44 AM
Dale, ya big 'ol drama queen! The bottom end is together, so all you have is the top-what are you going to do with the extra 2 nights you'll have? LOL!

Seriously, nice job! I'll see you in a couple of days!

Jack, we're running out of time-we'll be on the dyno a week from today! We have all of the parts for the oil squirters, but may not have time to get it set up before the dyno, so the coating was precautionary.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Milwaukee Midget on June 24, 2013, 07:50:03 AM
... what's the diameter and overall length on those roller rockers?...
Flathead ain't-got-no rocker arms. Maybe you're thinking of his custom-fabricated roller lifters?

Buddy- Wouldn't heat-shield coating the pistons' undersides negate the oil-cooling aspect? Or did you not implement the oil-spray setup? Heat-shield on the tops of the piston crowns is very desirable.

Jack, perhaps I talk I think what I'm knowing about . . . maybe.  :-D

Let me rephrase the question.

"And by the way - what's the diameter and overall length on those cam followers?  I might be seeing a British application in my future . . ."

It's no wonder I had problems earlier on . . .
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Koncretekid on June 24, 2013, 12:45:05 PM
Buddy and team,
Your build is looking awesome!  I'm just sorry I don't get back your way until after Speed Week.  I'm going to have to be satisfied with the bikes at BUB.  But sometime this fall, I hope to get up to Greeley to have a look.  My first car was a '37 Chev, so naturally, I'm jealous.  Had to sell it back then - - the sacrifices we had to make.
Tom
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Wrenchbender on June 27, 2013, 02:59:34 PM
A little update on the car side of things I picked up the rest of the front end fiberglass parts this morning and delivered them to the sign shop so they can get all lettered up the body work that needed to be repaired on the car itself is mostly done and max said the car will be done tomorrow afternoon.  Also while they have been busting hump on the body work and paint I have been collecting all the necessary hardware and such to bolt this thing back together also I scored some heavy steel plate from R&J welding for free so we can put some more weight in this pig  anyways here is a few pics of the front end stuff (http://i941.photobucket.com/albums/ad252/Renchbender/A013571B-1312-4892-9D72-ABD9A3F66E4F-2867-000001D0194BC6E4.jpg)(http://i941.photobucket.com/albums/ad252/Renchbender/8578AD0B-25A4-42BC-9E1D-34109B417CF6-2867-000001D003FECFC2.jpg)(http://i941.photobucket.com/albums/ad252/Renchbender/50C0B0D7-0627-4FC4-8E22-652B837BA7C6-2867-000001D00A05DA75.jpg)(http://i941.photobucket.com/albums/ad252/Renchbender/AD82E2FF-6F53-4CE4-8C71-09A84A39C5B9-2867-000001D010570731.jpg)Chrome don't get ya home
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: SPARKY on June 27, 2013, 10:27:06 PM
Toot Sweet :-D  :cheers:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: pops29 on June 28, 2013, 09:34:43 AM
... what's the diameter and overall length on those roller rockers?...
Flathead ain't-got-no rocker arms. Maybe you're thinking of his custom-fabricated roller lifters?

Buddy- Wouldn't heat-shield coating the pistons' undersides negate the oil-cooling aspect? Or did you not implement the oil-spray setup? Heat-shield on the tops of the piston crowns is very desirable.

Jack, perhaps I talk I think what I'm knowing about . . . maybe.  :-D

Let me rephrase the question.

"And by the way - what's the diameter and overall length on those cam followers?  I might be seeing a British application in my future . . ."

It's no wonder I had problems earlier on . . .


 Sorry it took sooooo long to answer your question ---  The OD. is .750 and the body length is around 2.600 less the adjuster 
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on June 28, 2013, 09:48:07 AM
Daaaamn! All the work, John, Max, and Randy have put in the body is really looking great!  :cheers:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Wrenchbender on June 28, 2013, 08:40:17 PM
Well I got the flatcad picked up from the paint shop today here she is in her shiny new red coat

(http://i941.photobucket.com/albums/ad252/Renchbender/B0D9C0A2-61DD-439A-9EBC-D14D512F5407-2867-000002770E3FE028.jpg)
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: SPARKY on June 28, 2013, 11:47:10 PM
guys!!!!!!!!!!!! :cheers:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on June 29, 2013, 09:11:38 AM
Whoo-Hoo!!!!  She's looking good! :cheers:

Well, we have a few engine issues to work through, so we won't be on the dyno Monday. I've spoke with John Beck, and Stainless, looking for a good plan 'B'.

We'll get the engine sorted out, then I'll let you know what plan 'B' is- just as soon as I know what it is!! :?

Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: fredvance on June 29, 2013, 12:07:47 PM
Man that is looking good!!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: desotoman on June 29, 2013, 04:10:18 PM
Buddy, Dale, and Crew,

Looks great, keep up the good work.

Tom G.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Roseville Carl on July 03, 2013, 02:14:51 PM
Hey Buddy how is plan "B" going??? :?
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: SPARKY on July 03, 2013, 05:05:27 PM
Bees  :? we have no bees in here   :-o
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Tman on July 03, 2013, 06:45:54 PM
Bees  :? we have no bees in here   :-o

He meant Beer but forgot the R!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: SPARKY on July 03, 2013, 11:25:02 PM
lol
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: BoredAndStroked on July 04, 2013, 01:13:23 PM
Cam, Thrust System, Lifter Blocks and Roller Lifters:

Fitted the new Dema Elgin roller cam into the block - what a fricking bumpstick this sucker is!  :eek:

Had to redo the thrust system for more clearance - seems that the overall snout length of this cam does not match our last cam (even though both blanks were made by the same guy???).  Needed about .040 more to not drag the front cam main bearing on the back of our custom steel thrust plate.   The thrust system is a special setup - we used the Donovan BBC cam gear plate, then added a Timken roller bearing and two hard thrust washers behind it.  What sets the overall thrust/backlash distance is actually the timing cover (which has another roller bearing for the mag drive snout).  I have a shim that I clearance on my surface grinder to set the thrust on the snout of the mag drive - into the cover bearing.  Works good and I end up with about .005 or so.


Lifter Blocks, Roller Lifters, etc:

Don, Alan, Kevin, Cannister and others did a lot of work to build our new roller cam lifter blocks and roller lifter setup.  Awesome stuff boys!  Who the hell does stuff like this in a one-off fashion . . . . FlatCad Crew :D (goofy b*stards that we are!).  This is some really complex stuff - and REALLY nice work by our extended team.   I can't imagine what it would cost if we tried to farm this stuff out . . . and who would be stupid enough to actually make it for us??  :-o

I did the design work in SolidWorks, then Don took over from there.  We're using Harley axles and rollers - with pressure fed oiling that comes down through a finely drilled hole in the lifter body and sprays into the axle and bearing.  Do we really need this pressure fed oil???  Who the heck knows, but I'm a big believer in having oil as many places as possible.  Buddy sent the dry-sump pump back to Barnes and they added a second pressure stage - it will be used for the lifters and the piston/pin oiling system (if I have time to get that done!).

Moving right along . . .  like a mad dash to a very close finish line!

B&S
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Roseville Carl on July 04, 2013, 02:41:46 PM
Go gettum Dale  :cheers:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: BoredAndStroked on July 04, 2013, 07:16:27 PM
End of 4th of July Status . . .

1) Prep for Piston Oilers - If We Have Time:

Worked on the lifter blocks and added oil line ports on the sides (in the center area).  I was pondering the best way to create piston oilers to squirt oil on the underside of the pistons . . . have finally got an idea that I like.  

As we're bringing oil pressure to the roller lifters - we have a galley plumbed in the lifter blocks.  I've tapped into the galley as a source for the squirters.

I may not have time to finish them, but I have a good plan - probably about 4 hours of work.   It will be LAST on my list, but by having the ports/fittings in the lifter blocks --- IF I have time, I can add them right in.  If not - just plug the ports with an 1/8 NPT plug.

See the mockup picture below - this seems like a very nice way to do it.


2) Valves:

Got all the exhaust valves in - is a real time consuming bitch to do, but at least I have the tools I made from last year.   Also, checked the new springs for pressure and length - they are exactly to spec.

1.8" length - pressure on the seat is 160 lbs.

At full .510 lift, they are 1.29 long and are at 345 lbs.

Dema made mild ramps on the cam - so this should be enough spring pressure.   Also, as the cam only has 3 bearings, I'd like to keep the spring pressure low and deflect it as little as possible on the inward cylinders.

Okay - time to light off a crap load of fireworks and drink beer!  :D
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: BoredAndStroked on July 05, 2013, 10:40:38 PM
July 5th Update - Sonzabitches!!!:

Great progress for most of the day . . . . but now, I'm just pissed at something that sets me back 3 hours! Sonzabitches!

So I get all the valves in, the cam back in, the timing cover system on (quite complex) and I put one lifter in on #1 intake. Mount my ginormous degree wheel, find TDC, find the closing ramp of the intake and I'm going to start finding the correct intake position - for 4 degrees advanced. (Talked to Dema today - that is what he wants).

So I start turning the engine over with the breaker bar - watching the Donovan gear drive gears . . . then, Holy Crap . . . the gears stop turning when the cam lobe hits the roller and pressure is applied.

WTF????

Then I watch - the crankshaft gear is turning on the crank! The fricking crankshaft grinder pulled the gear, ground the crank, lost or forgot the timing gear keys and put the gear back on anyway. I didn't notice - didn't think anybody would be that dumb. This is the kind of crap that just pisses me off and wastes a bunch of time. Arggggggghhhh!!!

So now I get to take the whole timing system back off - and try to find some dang crank gear timing keys tomorrow.

What a pisser! @#%$@#%#$%@

Glass of wine - time for bed . . . try again tomorrow!

B&S
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: SPARKY on July 06, 2013, 12:22:55 AM
I KNOW the feeling---thank goodness the gear has enough clearace it stopped rotating!!!!!!!!!!!!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Wrenchbender on July 06, 2013, 12:32:44 AM
Its official the flatcad is on it's way to Ohio for an engine Install.  Dale you better get busy the car will be in your driveway in the morning here are some pics we took just before we loaded her on the trailer. One thing is for sure the car looks fast even sitting still

(http://i941.photobucket.com/albums/ad252/Renchbender/306232F9-8354-432D-9FA5-62D65F24565A-7555-000006DB8F17E59A.jpg)(http://i941.photobucket.com/albums/ad252/Renchbender/6B1E0DB4-9B85-4D0D-91BD-935BCC976A25-7555-000006DB5C341102.jpg)(http://i941.photobucket.com/albums/ad252/Renchbender/79898993-41DF-4B37-8F9D-D2C7AC06700B-7555-000006DB44284722.jpg)(http://i941.photobucket.com/albums/ad252/Renchbender/AFA9E0CF-A485-4154-A101-7E1F55D32A31-7555-000006DB7F2746A5.jpg)(http://i941.photobucket.com/albums/ad252/Renchbender/E937A443-A997-4C3D-BEFC-988804E7AECB-7555-000006DB9FB3214B.jpg)Chrome don't get ya home
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: gkabbt on July 06, 2013, 06:58:33 AM

BITCHIN'.....'nuff said!  :cheers:

(http://i941.photobucket.com/albums/ad252/Renchbender/79898993-41DF-4B37-8F9D-D2C7AC06700B-7555-000006DB44284722.jpg)

Gregg
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: BoredAndStroked on July 06, 2013, 08:02:33 AM
WOW - Awesome looking!  This is the visual motivation I needed this morning . . .  time to quit my bitching and moaning about a silly little crankshaft gear key and get my butt outside and cracking on getting this engine done.  :cheers:

Fantastic job by everybody involved - I am super impressed to say the least!

B&S
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: gkabbt on July 06, 2013, 08:11:14 AM
Fantastic job by everybody involved - I am super impressed to say the least!

B&S

B&S.....I think everyone on this board will agree 1000% with this statement! 
To all involved, :cheers:  :cheers:  :cheers:  :cheers:  :cheers:

Gregg
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: SPARKY on July 06, 2013, 09:01:50 AM
Whooooeeeeee  reminds me of the rhyme my folks taught us as kids about snakes ---"red and black venom lack, Red and Yellow will hurt a fellow" --- that Flat Caddy sure looks like it is going to hurt some records.

 :cheers: :cheers: :cheers:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: BoredAndStroked on July 06, 2013, 09:12:03 AM
Just pulled the gear drive off - yep, no keys for the crank gear.  :cool: Luckily Jeg's warehouse is 10 minutes from me and they willcall on Saturdays - only takes an hour.   There went $27.00 for two little pieces . . . but when yah need something, yah need it!

Amazing service at Jeg's - without them, there is no way the FlatCad would have made the salt the last 2 years - or this year.   I make more runs to Jeg's than one can imagine.

Working on the FlatCad (or racecars in general) is like a home plumbing job . . . starts out with optimism ("I think I have everything I need"), then you make 6 more trips to Home Depot!   Two days later . . . the sucker is still leaking . . .  then you finally replace the whole part!  :-D

Luckily the cover came off with fubaring the gasket - as I don't have another and trying to find a .400 raised cam BBC timing gear gasket on a Saturday . . .  fat chance!

Off to Jegs I go . . . then back at it!

B&S
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: fredvance on July 06, 2013, 10:52:11 AM
Man the car looks fantastic!! Who woulda thunk a 38 Chevy could look so good!! :cheers:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: dw230 on July 06, 2013, 11:19:00 AM
Buddy,

How tall are those spoiler side plates from the chord?

DW
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: WZ JUNK on July 06, 2013, 01:16:20 PM
Buddy,

How tall are those spoiler side plates from the chord?

DW

They are just under the limit from the rule book and just behind the axle centerline.  I made them 7.75" above and below the center line of the spoiler.  My book says they can be 8" above and below.  I hope I did not make a mistake.

John
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Milwaukee Midget on July 06, 2013, 01:51:21 PM
Its official the flatcad is on it's way to Ohio for an engine Install. 

Skipping the dyno?

It's probably just the era of the design, but this coup is really reminding me of a 3/8 scale version of the Phoenix - especially from the front.

http://www.highperformancetrucks.com/gallery2/main.php?g2_view=core.DownloadItem&g2_itemId=2940

justfrickenawesome!

Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Tman on July 06, 2013, 04:38:51 PM
Buddy,

How tall are those spoiler side plates from the chord?

DW

They are just under the limit from the rule book and just behind the axle centerline.  I made them 7.75" above and below the center line of the spoiler.  My book says they can be 8" above and below.  I hope I did not make a mistake.

John

John, it looks like the chord is greater than the 10" max?
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Wrenchbender on July 06, 2013, 05:08:11 PM
Tman could you educate a greenhorn and explain the term chord I have never heard the term

Thanks

Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on July 06, 2013, 05:25:07 PM
Buddy,

How tall are those spoiler side plates from the chord?

DW

They are just under the limit from the rule book and just behind the axle centerline.  I made them 7.75" above and below the center line of the spoiler.  My book says they can be 8" above and below.  I hope I did not make a mistake.

John

John, it looks like the chord is greater than the 10" max?

Nope! Trent, I'm not sure how you could begin to determine that based on nothing to estmate size with.

Chord from trailing edge is 9.75", 7.75" above and below chord line.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Tman on July 06, 2013, 06:13:15 PM
Excellent, that is why I asked. On a 38 I can see why Dan was wondering, the whole thing looks HUGE! I had no doubt in Johns experience, just wanted clarification.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Tman on July 06, 2013, 06:14:26 PM
Tman could you educate a greenhorn and explain the term chord I have never heard the term

Thanks



chord is the depth of the rear wing, not width. Things are spelled out pretty precise in the rulebook.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Wrenchbender on July 06, 2013, 06:17:38 PM
Thanks tman I was not where I could look at the rule book and see plus buddy definately made sure I had the definition too lol
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: dw230 on July 07, 2013, 10:19:22 AM
I spoke with Buddy on the phone yesterday, all is good. Chord is a common aerodynamic term.

DW
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: DND on July 07, 2013, 04:33:20 PM
Hi Wrench Bender

Cord is the distance of a flying surface or wing from the Leading Edge to the Trailing Edge, the shape is called the Airfoil

Two different items

G Don
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Wrenchbender on July 07, 2013, 05:41:54 PM
I really appreciate the info everyone has given me in regards to my question about the term chord most of all the info was given in a nice educational way what a great bunch of folks there is here can't wait to get to the salt and see what the ol flatcad can do I hope you all stop by our little hut and say hi I would really like to put a name to a face see ya at the salt!!!!!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: BoredAndStroked on July 07, 2013, 09:59:54 PM
Sunday Update #2 - Top End is Done Boys!:

Here are a couple pictures of the lifter blocks with the roller lifters in them - as well as our custom roller lifter.   I can't believe the amount of work we put into just the lifters -- Don kicked butt on them!   Hopefully our design works out - we even added pressurized oil to the axles, etc..

Chris Daniels and I put all the lifter blocks and lifters in yesterday - and set the lash.  However, when Buddy was over in the afternoon, he and Chris were looking at the adjusters we used (vintage Harley stuff) and they seemed a bit funny.

I surged ahead and we put them all in.  Buddy - having plenty of time in his truck, kept thinking about the adjusters and was wondering if they were square to the tops of the bodies . . .  as we thought we saw something a bit off when installed???

This got us all worried, so I pulled all the lifter blocks, lifters and adjusters back out of the engine and surfaced every adjuster in my lathe to ensure they were all square.  Most of them were a couple thousands off - so I only had to cut about .004 or so from the tops to true them.  In retrospect, I will do this on every adjuster going forward -- as you have a nice polished surface when done (I polish with 400 - 600 grit sandpaper) and it does make it easier on the 'feeler gauge' lash setting procedure.

Needless to say - this was about a 6 hour operation . . . but I started very early.


1) Pressurized Lifter Blocks and Rollers: Took some work to figure out the dang pressurized oil line plumbing for the lifter blocks.   I'd bought a crap load of AN fittings - thinking I could get them all in the tight valley area.  Not a chance.   I finally decided to make hard lines to go between the two blocks (side to side) and a flexible line to feed the blocks in the middle.  

Took a lot of screwing around to come up with a workable plan - even had to weld up a 'custom wrench' to fit in a tight place.


2) Lifter Block Strut Support System:  When Don, Buddy and I discussed the new roller cam design and the new lifter blocks, we pondered my concern that the only thing holding the lifter blocks in is two cast iron bosses that hang out in the valley of the block (for each block assembly).

It really concerned us that with the added stress of bigger valve springs and the side-load of roller lifters that we may be in danger.  If one of those two bosses broke off, we'd drop the lifter block into the cam . . . into the crank and the whole thing would be a blender.

I originally designed a strut system to go all the way up to the intake girdle, but Don had a much better idea.   He found some long ARP studs that could be modified to do two things:

a) Bolt the lifter blocks down -- so he threaded them all the way down.
b) Go up all the way out of the valley to a set of new custom steel valley cover plates where we'd tie the studs in.  This top plate is like a 'stud girdle' for the lifter block studs.  It picks up all four studs for each side (as there are two of them).

We have ARP nuts on both sides of the plates - and I put about a .001 to .002 crush on them.   The theory is that we've now tied all four studs together and we've tied them into the block cover plate . . . hopefully this will help stabilize the lifter blocks and reduce stress on the block bosses.

It actually looks like of cool when you look at the valley - like something that you'd have in a WWII tank!  Guess we're trying to be true to the engine's roots and wartime service!  

Wish us luck - we have a HUGE amount to get done in a week - we're rallying the troops for next weekend.

More attachments in a second post . . .

B&S
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: BoredAndStroked on July 07, 2013, 10:01:14 PM
More Photos of the Top End:

Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Pete1 on July 07, 2013, 10:19:41 PM
I don't like the rubber hoses with screw hose clamps.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: SPARKY on July 07, 2013, 11:58:25 PM
Pete I would be willing to bet that those are the new "barbed fittings" and do not require any clamp at all but anal kicked in--lol


Guys--- :cheers: :cheers: :cheers:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: BoredAndStroked on July 08, 2013, 07:13:56 AM
Crank Gear Keys: Starts with the Speed Gods Looking after Me . . . Once I stopped the pathetic whining . . . I owe an apology to the Crank Grinder Gods - have mercy on my poor soul!


After I ordered the hardened keys from Jeg's, had a thought . . . "Hmmm - wonder if they took the keys our and put them in the crank box???". Sure as heck, they were taped to a piece of paper in the bottom of the box - didn't see them.   Duh!

Now - I still can't believe they put the gear on the crank - if I'd pulled the keys, I would have left the gear off the crank and wired the keys to the gear. So somebody who was one taco short of a combo meal (me) would have known what was going on . . . but hey, that must just be the way I think.

BUT - because they pulled the keys, while waiting for Jegs, I took the original keys to a file -- could easily file them . . . which means they were not hardened. Whups - that is not good.

So - one could say, that the crankshaft Gods took care of me . . . as this whole drama caused me to find out that the keys that were in it were soft, so I'm glad I know have the hardened ones.

With a gear drive, heavier spring pressure, etc -- definitely don't want a key to fail!

Okay Dale - that is exactly what you deserve for having a big pity party for yourself.    Quit your moaning and get back to work . . . .
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: SPARKY on July 08, 2013, 10:13:48 AM
lol  "they" say confession is good for the sole--- who would have thought keys would not be heat treated  :?
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Roseville Carl on July 08, 2013, 06:39:30 PM
not a key ..... a shear pin........... :-D
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Glen on July 08, 2013, 06:58:04 PM
I would use AN hose and fittings or hard line in AN  :cheers:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Pete1 on July 08, 2013, 07:02:23 PM
I would use AN hose and fittings or hard line in AN  :cheers:

Roger on that.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: robfrey on July 08, 2013, 10:50:24 PM
All I can say is "Wow"!!!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on July 11, 2013, 11:56:11 AM
Thanks for all of the kind words! Randy, John, and Max really did a nice job with the suspension, body, and paint mods, and Kris did a neat job of lettering!
 
Dale, nice job with the engine!
 
Tman, I wasn't trying to sound short in my reply on the spill plates. I was traveling back from Missouri, and trying to post an answer from my Blackberry!
 
 
Soooo, I really hate to bring drama to the thread, but maybe my tranny issues with LIBERTY'S HIGH PERFORMANCE PRODUCTS, INC., will save someone else some heartaches!
 
I had went back and forth between a Gear Vendors 3 speed with overdrive, that Rich Fox was kind enough to loan me, and a ultra close ratio gear set for my Liberty toploader. I sent the toploader off for a new gear set in March, for what was supposed to be a 3 week job.
 
Well, as of last Monday, nothing has been done! On top of that, the price tripled! When I pointed out to Paul, the shop manager, that the new price didn't match the quote he gave me, his response was " Prove it- you don't have that quote on letterhead." WTF?
 
Paul called back, and said he could still do the job for the original quote, but it would be at least 3 weeks before the tranny was done. Paul, I wouldn't walk across the street to urinate up your backside, if your guts were on fire!
 
Luckily, this forum exists! Ken Coe, (iskipnw), had a Rankin 4 speed for sale, with exactly the gears I wanted. Ken packaged and shipped the tranny the same night, without even waiting to recieve payment! Tranny should arrive today-Thank Ken!
 
Now, to sort out the dyno issues! More on that later, though it appears I once again may be saved by the graciousness of a forum member!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: RichFox on July 11, 2013, 12:24:24 PM
Anybody want to buy a three speed top loader with gear vendors OD? Supposed to hold 1000 Ft. Lbs. torque.  RF
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: SPARKY on July 11, 2013, 01:13:50 PM
sometimes vendors forget the the old adage the pigs get fat and the hogs get slaughtered!!!!  he must have thought he was dealing with P&M :-D
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: lsrjunkie on July 11, 2013, 02:27:40 PM
All I can say Buddy is... WOW!!! Car looks amazing! Pretty big difference in looks from the old trim, but I must say, I love it! She looks fast just sitting there! You guys have done so much in such a short amount of time. Can't wait too see the old girl out on the salt. Keep up the thrash!  :cheers:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Tman on July 11, 2013, 03:57:02 PM
No worries Buddy! We were all just curious. We also know you have always asked the right Qs from the right people so I at least figured you had it covered.

Thanks for the tip, never will deal with Liberty, I hope the see this :-D :evil:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Milwaukee Midget on July 11, 2013, 07:59:54 PM

Soooo, I really hate to bring drama to the thread, but maybe my tranny issues with LIBERTY'S HIGH PERFORMANCE PRODUCTS, INC., will save someone else some heartaches!
 
I had went back and forth between a Gear Vendors 3 speed with overdrive, that Rich Fox was kind enough to loan me, and a ultra close ratio gear set for my Liberty toploader. I sent the toploader off for a new gear set in March, for what was supposed to be a 3 week job.
 
Well, as of last Monday, nothing has been done! On top of that, the price tripled! When I pointed out to Paul, the shop manager, that the new price didn't match the quote he gave me, his response was " Prove it- you don't have that quote on letterhead." WTF?
 
Paul called back, and said he could still do the job for the original quote, but it would be at least 3 weeks before the tranny was done. Paul, I wouldn't walk across the street to urinate up your backside, if your guts were on fire!


My wheels, my crank, my blow-blanket, my rockers, my flywheel, my dyno session that I eventually cancelled and moved elsewhere . . . Once everything finally came in and got done, it was all good, but what has happened to small businesses that they are compelled to promise or agree to deadlines that they simply won't or can't or are unable to honor? 

Fordboy's been watching similar travesties unfold for a customer of his in Illinois for the past 4 weeks.  The shop that had been doing the work for his customer just kept screwing it up and making things worse.  With a Mini Cooper A-series, there are not a lot of options unless you do it yourself.

I've been a bit more resigned to it because of the nature of my build, but Buddy, there are plenty of good transmission guys out there who can rebuild a frickin' top-loader and will keep their word, and if for an unforeseen reason they can't, will be in immediate contact with you to accurately communicate the issue.

Liars have no business in business, and yet they abound.

I suspect with some shops it's a case of not wanting to turn down work, or having an unrealistic view of their own capabilities.  But I also suspect that there are a lot of shop owners who know no other way of doing business other than to bluff, mislead and bullyrag their customers. 

If that's what it takes to keep it above water, let 'em sink.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: manta22 on July 11, 2013, 08:04:51 PM
That guy at Liberty must think he works for the government.

Regards, Neil  Tucson, AZ
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on July 11, 2013, 08:13:23 PM
Chris, I agree with you. I could rebuild it myself, but I needed them to do the special gearing, as you cannot just buy them. There was nothing wrong with the tranny, save the fact I wanted closer gearing.

I may have been more understanding, had he not lied, and tried to shove the added dollars down my throat. " Prove it- you don't have that quote on letterhead", killed the thought of me EVER doing business with them, or EVER running one of their transmissions!

Too bad, becauseI really liked that tranny!

Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Milwaukee Midget on July 11, 2013, 10:52:22 PM
An honorable man honors his agreement.

Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: fordboy628 on July 12, 2013, 09:21:05 AM

Soooo, I really hate to bring drama to the thread, but maybe my tranny issues with LIBERTY'S HIGH PERFORMANCE PRODUCTS, INC., will save someone else some heartaches!
 
I had went back and forth between a Gear Vendors 3 speed with overdrive, that Rich Fox was kind enough to loan me, and a ultra close ratio gear set for my Liberty toploader. I sent the toploader off for a new gear set in March, for what was supposed to be a 3 week job.
 
Well, as of last Monday, nothing has been done! On top of that, the price tripled! When I pointed out to Paul, the shop manager, that the new price didn't match the quote he gave me, his response was " Prove it- you don't have that quote on letterhead." WTF?
 
Paul called back, and said he could still do the job for the original quote, but it would be at least 3 weeks before the tranny was done. Paul, I wouldn't walk across the street to urinate up your backside, if your guts were on fire!


My wheels, my crank, my blow-blanket, my rockers, my flywheel, my dyno session that I eventually cancelled and moved elsewhere . . . Once everything finally came in and got done, it was all good, but what has happened to small businesses that they are compelled to promise or agree to deadlines that they simply won't or can't or are unable to honor? 

Fordboy's been watching similar travesties unfold for a customer of his in Illinois for the past 4 weeks.  The shop that had been doing the work for his customer just kept screwing it up and making things worse.  With a Mini Cooper A-series, there are not a lot of options unless you do it yourself.

I've been a bit more resigned to it because of the nature of my build, but Buddy, there are plenty of good transmission guys out there who can rebuild a frickin' top-loader and will keep their word, and if for an unforeseen reason they can't, will be in immediate contact with you to accurately communicate the issue.

Liars have no business in business, and yet they abound.

I suspect with some shops it's a case of not wanting to turn down work, or having an unrealistic view of their own capabilities.  But I also suspect that there are a lot of shop owners who know no other way of doing business other than to bluff, mislead and bullyrag their customers. 

If that's what it takes to keep it above water, let 'em sink.

It is VERY difficult to produce high quality work on a daily basis, IF, all you are concerned about is parting people from their money . . . . . . .

If a shop is overly concerned about "flow-through" chances are your non-standard project will be side-tracked, ignored, delayed AND the price punched-up.   None of which is any guarantee of quality work.   And most likely the opposite . . . . . .

And sometimes the guys who work there just don't give a sheet . . . .  and/or they just "mail it in" . . . . . .
 :cheers:
Fordboy
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on July 12, 2013, 03:50:37 PM
The Rankin 4 speed showed up last night, and Randy drove to Dale's to help get the car together. Dale, Randy, Mark, and Chris are thrashing away the weekend, while I work, and Don golfs! Lol!

Hopefully, you'll see some assembly updates from the crew soon!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Captthundarr on July 12, 2013, 10:49:03 PM
Ain't it great when no plan and great people come together  :cheers: :cheers:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on July 13, 2013, 10:23:08 AM
The thrash continues! :-D

Update from Dale:

Friday Update:

Randy drove up, Mark came down and we were going like mad all day. The good news is that we all know the car and the systems, so we can get crap done without bothering each other too much.

I'm not going to write a lot today - have too much to do.

The tranny showed up in a big ole' box on my doorstep - looked like a big 'round' box due to the weight and shipping. The tranny looks really nice, turns over very smooth and we managed to find a shifter we believe will work. I hope if will get past the fat-Acura seat we have . . . may have to rework some stuff on the shifter handle. All in all - I believe a GREAT last minute decision and execution Buddy.

The engine is together - took a long time to make the custom crank trigger setup - had to make the mount, figure out how to get the trigger 25 or so degrees behind TDC, etc.. This is the first crank trigger I've setup, so was a bit to work out. I had it on the WRONG side of TDC the first go, until Randy corrected my evil ways. Can't correct 50 degrees OFF of where you need to be with the MSD box!

Today we plan to get the engine in the car - hopefully a few much needed parts show up. Had to pay $85 for a missing transmission centering ring - when yah need it, yah need it!

Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: SPARKY on July 13, 2013, 08:46:29 PM
love the reverse lock out  :-D
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: robfrey on July 13, 2013, 09:58:31 PM
Lookin really good!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Jack Gifford on July 13, 2013, 11:52:38 PM
Do you know for a FACT how your electronic advance is defined? A few years ago I built a crank-trigger onto an engine and used a Crane electronic module which allows programming of the advance curve. My assumption that the programmed advance would be added to the static timing was wrong. The module, in reality, expects the crank trigger event to occur at the maximum advance value.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: BoredAndStroked on July 14, 2013, 08:29:14 AM
Not sure as of yet - I 'advanced' the trigger to 25 degrees before TDC.  I figured I'd get the trigger very close, then mess with the timing in the software.  I can move the trigger if needed (on a sliding slot).  I guess I'll call MSD and figure it out . . . but I can do that detailed stuff next week!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: BoredAndStroked on July 14, 2013, 08:30:14 AM
Brief Update:

Tranny:  We tore a bearing retainer and throw-out bearing support out of one of my Muncie trans - attempted to machine the inside to fit the tranny - no go, not enough material for the seal to fit, and it has to have one.

So- we put the Rankin one back in just to get the car back to Randy's.  Buddy will have to find a new front retainer/support - we cannot use what we have.

Tranny Xmember:  Will need major surgery - Randy will do that once he gets the car back.

Shifter:  Big fun here - the one that Randy brought will not fit without a bunch of monkey business (hits the seat, etc).  We have no choice but for him to finish this stuff back at his place - can't do it here.



Engine:  It is done, inner exhaust system on it, blower manifold, front of the motor, etc..  We mounted the flywheel, new clutch, etc.. -- put the trans on it and mounted it in the chassis about 11:00 or so last night.   Started running the oil lines, etc..

Inside the Car:  All the dry sump and cooling stuff has been put back in and most of the hookup done.

Electrical:   Just heading out to the shop - will rip out the old data collection wiring and mount a new two-stack panel for the data collector and MSD system.  I'm going to make the panel/board out of wood - I didn't have time to scrounge up aluminum plate.  (Going to try one last place this morning).

Mark, Chris, Randy and I have been cranking - thank gosh we know the car and all the systems, so we can keep moving.

Back at it . . .
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: SPARKY on July 14, 2013, 08:45:37 AM
 :cheers: :cheers:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on July 14, 2013, 08:51:58 AM
Well, did we get lucky, and have the driveline too long, or unlucky, and it's too short? :?
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: BoredAndStroked on July 15, 2013, 09:03:19 AM
Weekend Update - Was Out of Gas Last Night:

We loaded up the FlatCad on Randy's trailer and he headed out about 7:30 or so last night . . .  he had a long trip home over the night and he wanted to be able to be at work today.   He is one hard working SOB!

Not every last thing is done, so we took time to think about how to handle the remaining work in order to have the car ready.

With the above said, I want us all to realize how much we did in the last 3 days - an enormous undertaking by the crew . . . impressive to say the least.

Here is where we are at:

a.  Engine is complete and in the car
b.  All water and oil systems are fully plumbed
c. Intercooler, blower, injector and upper exhaust systems are mounted.  All new port nozzles mounted and lines ran.
d. Injector pump is mounted
e. Dry sump pump and overall system is mounted and plumbed - we're not using the additional scavenge stage as we have no place to plumb it.   We wanted a second pressure stage - but there was a mix-up at Barnes of some sort.
f. Transmission is in the car -but it needs to be removed to solve the throw-out bearing collar issue (as it doesn't have one!).
g. Main electrical system boards are made and all components mounted.
h. Both batteries are mounted and we now have dual cut-off switches in the rear - one for 12 volts on for the 16 volt battery for the MSD.
i.  All six EGTs sensors are mounted in the car, oil pressure sensor, water temperature sensor and manifold pressure sensor.

Here is what is left to do - high level, will detail more later:

a.  Transmission needs to be pulled and a new front bearing retainer and collar put on.   This is a part that probably comes from Rankin.   We could not modify a Muncie collar to work.

b.  Shifter - hits the seat and is generally not in a usable position.  This is the same problem we had with the Liberty (Don made a custom setup).  Randy is going to try to put a system together using both shifters, maybe some of Don's stuff, etc..   I anticipate this to be a somewhat detailed/complex issue that takes time to work out.  One big PITA if you ask me.

c.  Slave Cylinder:  Need a new bracket - the old bracket cannot be found.

d.  Driveshaft:   My guess is that we'll need a new one - probably longer.

e.  Fuel Tank:  This is being made - will have to figure out how to install and plumb it.

f.  Electrical System:  Dale is going to finish the few wiring details of two main boards and test them on the distributor machine - the entire system.   Randy will get some of the sensor wires setup and have a 'mount' ready.   Will take about 2 - 4 hours to complete the wiring (best guess).   The crank trigger is mounted, so it should be fairly simple to install the mag and complete the wiring.  We did not have time to get to this - too much other stuff going on in/around the car and engine area.

g.  Injector Priming System:  Needs to be installed and we need a small electrical fuel pump to run it.   

h.  Water injector:  Needs to be installed - Randy will have the injector hat ready to just plug it in.  Dale will have the wiring setup to basically plug-n-play with it.  I will test it and send it to Randy - should be easy to setup.

Can't say enough about the crew and the level of focus, hard work and concentration that went into these last few days.


We have a lot of details to get flushed out, but I believe we can make it -- like everybody else, it all comes down to the 11th hour and how you handle it!

Will post some pictures late - need to collect them from Chris and Randy.

B&S
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Freud on July 15, 2013, 11:14:59 AM
Don't let the pictures slow you down. Us viewers whine too much.

The project is the priority: not feeding this bunch of lurkers.

Your crew is amazing.

FREUD
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on July 15, 2013, 11:50:26 AM
It is an amazing crew, it it! They are great! :cheers:

We DO need pics, Freud-I haven't even seen the new stance with the engine in it!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Freud on July 15, 2013, 02:01:48 PM
Flatty......quit whining.

FREUD
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Pete1 on July 15, 2013, 03:19:41 PM
"b.  Shifter - hits the seat and is generally not in a usable position.  This is the same problem we had with the Liberty (Don made a custom setup).  Randy is going to try to put a system together using both shifters, maybe some of Don's stuff, etc..   I anticipate this to be a somewhat detailed/complex issue that takes time to work out.  One big PITA if you ask me."

That has been a problem from day one. I have a chipped bone in my knee to prove it.
I hope the fix doesn't take up too much time.
And a understanding of Einstien's theory is good to keep in mind when solving problems of this type.
"No two objects can occupy the same space at the same time".
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: WOODY@DDLLC on July 15, 2013, 04:55:44 PM
Einstein never met any LSR physicists!  :-D
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on July 15, 2013, 05:59:32 PM
"b.  Shifter - hits the seat and is generally not in a usable position.  This is the same problem we had with the Liberty (Don made a custom setup).  Randy is going to try to put a system together using both shifters, maybe some of Don's stuff, etc..   I anticipate this to be a somewhat detailed/complex issue that takes time to work out.  One big PITA if you ask me."

That has been a problem from day one. I have a chipped bone in my knee to prove it.
I hope the fix doesn't take up too much time.
And a understanding of Einstien's theory is good to keep in mind when solving problems of this type.
"No two objects can occupy the same space at the same time".

No Pete, the first year we had a H pattern shifter and a Muncie, and it was usable, but a PITA.

Last year, we ran the Liberty and a Vertigate shifter, and that worked nice! The Rankin mounting points are further back on the tail than the Liberty. Once the mounting bracket is modified/fabbed, it will be trick! :cheers:


Einstein never met any LSR physicists!  :-D

That's pretty good, Woody! :-D
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Milwaukee Midget on July 16, 2013, 12:37:30 AM
I love a thrash - especially when it's not mine.  :evil:

Seriously, huge headway in short order.  Kudos.

Wish you could have dynoed, but just be cautious on the first few runs.  There's a whole lot of "new" going on here.

To the crew -  :cheers:  :cheers:  :cheers:

See you in a few weeks.

Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on July 16, 2013, 04:04:06 PM
Thanks Chris!

Actually, we're still trying to line up a last minute dyno, although we will run on a chassis dyno this year.

John Beck is awesome-he will help us tune via computer and phone! :cheers:

I'll post details once everything is firmed up.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: SLCMike on July 17, 2013, 04:45:51 PM
Hey Flattie, I hope all the stars align and it runs like a raped ape, I am sooo looking forward to speed week this year. My daughter wanted to schedule her wedding for August 10th, I talked her into August 3rd. Good thing, I would have hated to miss it. l am planning on dropping by your pits to get a couple of tee shirts and take you up on the cold beer offer.  :cheers:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on July 17, 2013, 05:48:58 PM
Mike, we’ll see you there! :cheers:

Don is working on the last missing component, the bigger alky fuel tank.

 From Don:

Fuel Tank progress -- Buddy and Randy made a cardboard fuel tank to accommodate the added fuel we will be needing. I took the tank and made a solid model drawing then transferred it to my laser and cut the parts..

As always, Don’s stuff is first class! Thanks Don! :cheers:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Peter Jack on July 17, 2013, 06:06:11 PM
Nice job on the tank! I've never thought of using laser to cut out the more complex pieces. I've always used the shear and saw. I'm going to change some of my methodology.

Thank-you!  :cheers: :cheers: :cheers:

Pete
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on July 17, 2013, 09:31:02 PM
As previously posted, the guys were thrashing on the car last weekend!  :cheers:
From Randy:

A little update on the car side of the FlatCad thrash for Bonneville. Last weekend I drove to Ohio to help get the engine and trans installed and we succeeded, though we still have a few things to do, but nothing we can't handle. Anyway, here are a few pics of the install-stay tuned, more to come

We had a few trans issues to work out. Fortunately with a little modification to the bracket Don made last year and some extra shift rods I had stashed away we have a fully functional shifter
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: ratpatrol66 on July 17, 2013, 09:47:52 PM
Thats a nice looking tank, and big also. Your car must be a thirsty beast?
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on July 18, 2013, 08:33:53 AM
Thats a nice looking tank, and big also. Your car must be a thirsty beast?

Well, last year we ran on gas, and ran out to the quarter- that took 2.5 gallons. This year we’re switching to alky, so consumption will be about double, and we’ll have to run at least to the 3 mile.

I don't know if we can achieve our goal in 3 miles, and it’s a long way to the 5 mile! :evil:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on July 18, 2013, 11:33:41 AM
Don always does fantastic work, and the tank is no exception!

From Don:

Here is the completed tank!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: manta22 on July 18, 2013, 12:16:41 PM
Very nice work!

Regards, Neil  Tucson, AZ
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Jack Gifford on July 19, 2013, 12:05:17 AM
I'll present you with a red hat myself- in honor of lightning-fast production of custom goodies! :cheers:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: fordboy628 on July 25, 2013, 07:16:52 AM
Flattie,

How goes the thrash?

 :cheers:
F/B
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on July 25, 2013, 02:34:33 PM
Mark, things are going well. The new driveline came in, and is installed, as is the clutch and slave cylinder.

New blower restraint belts showed up, shifter is done, and new fuel tank showed up. Randy will fab up the tunnel around the new shifter location this weekend, and we have a little fuel plumbing and electrical to finish up.

All is well in our world!


Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: fordboy628 on July 25, 2013, 02:41:13 PM
Glad to hear you guys are pounding away at it.   Good luck in the home stretch.
 :cheers:
F/B
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: lsrjunkie on July 25, 2013, 04:00:53 PM
Two weeks out and it sounds like things are falling into place!  :cheers: Giver 'er hell boys!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on July 27, 2013, 02:08:24 PM
Thanks guys!

The car should be complete this weekend. Randy is installing the fuel tank today, and finishing up the plumbing.

2 Go-Pro camers are on the way, and we're about ready! Randy will probably update this with pics in a day or two!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Tman on July 27, 2013, 02:09:42 PM
Better than the first year finishing it on the salt eh?!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on July 27, 2013, 02:22:38 PM
Trent, that's for sure!

Out of curiosity, would anyone be interested in running this mill in a proven lakester or liner? In order to make the engine shorter, it would be switched over to turbos.

That's right-I'm trolling! :evil:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Sumner on July 27, 2013, 06:37:25 PM
Trent, that's for sure!

Out of curiosity, would anyone be interested in running this mill in a proven lakester or liner? In order to make the engine shorter, it would be switched over to turbos.

That's right-I'm trolling! :evil:


I'll bet there are some fish, car owners, in the pond that might take the bait  8-),

Sum
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Roseville Carl on July 28, 2013, 08:10:18 AM
Well................... whats the results?????????????????? :?
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on July 28, 2013, 08:12:08 AM
Well................... whats the results?????????????????? :?

Carl, results of what?
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: SPARKY on July 28, 2013, 09:09:13 AM
LOL   :-D
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Stan Back on July 28, 2013, 12:11:55 PM
I think the XXO/BSTR record might be attainable if someone could find a driver not dizzy.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on July 28, 2013, 01:34:40 PM
I think the XXO/BSTR record might be attainable if someone could find a driver not dizzy.

Haha! We have records we can, and will attack-I'm looking more at TOP speeds! :-D :-D
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on July 29, 2013, 09:04:45 AM
Wow! I can't say enough about the guys on this board!

We'll be at Stainless's house this weekend, dynoing this beast! With only a few days before B'ville, this is a huge imposition on Stainless, and I'll have a helluva time repaying him for his generosity!

Videos will follow!


Thanks Stainless! :cheers:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: lsrjunkie on July 29, 2013, 11:32:18 AM
Awesome Buddy! Good luck!  :cheers:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Roseville Carl on July 29, 2013, 07:35:29 PM
Can't wait to hear the great news that she went past expectations!!!!!! :cheers: :cheers:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Milwaukee Midget on July 30, 2013, 12:04:20 AM
Glad to hear you'll do some dyno work before you make the trip down the salt, especially given the huge number of changes that have occurred.

Having been through the embarrassment of running an untested engine, I think you'll be miles ahead of the game. 

Get it close - don't throw it away in the bullpen.

Gosh, Buddy - I'll see you next week!  :cheers:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: SPARKY on July 30, 2013, 12:06:59 AM
Have turbos that can travel!!!!!!!!!  lol
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Stainless1 on July 30, 2013, 11:08:24 AM
Have turbos that can travel!!!!!!!!!  lol

Ya but can you keep it under 1000 RWHP  :cheers:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: SPARKY on July 30, 2013, 12:28:34 PM
The two small S400s will ---down side T6 flange--upside small compressors large turbines
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on July 30, 2013, 05:10:20 PM
Funny you should say that Sparky-I've been looking at a pair, with T4 flanges! :-D

http://www.ebay.com/itm/Borg-Warner-S471-100-AR-Twin-Scroll-T4-Turbo-S400-/221259665076#ht_576wt_899
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: SPARKY on July 30, 2013, 06:48:48 PM
What size are all of the wheels that will tell what they are.

Compressor         Inducer          Exducer
Turbine               Inducer          Exducer
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on July 30, 2013, 07:20:10 PM
What size are all of the wheels that will tell what they are.

Compressor         Inducer          Exducer
Turbine               Inducer          Exducer

Here is what I know:

Compressor wheel - 71.06mm/101.45mm 95lbs/min
Turbine wheel - 77.5mm/87mm
Compressor inlet - 5" hose Ported Shroud
Compressor outlet - 4" v-band
Turbine Inlet - Divided T4 1.00 A/R
Turbne outlet for 4" v-band
capable of supporting 1000hp+

Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: pops29 on August 03, 2013, 06:23:48 PM
 Hi Guys here is an up-date on the Dyno

Well it has been a rough start #1 Dales Friday night flight was canceled , he had to get a flight out this morning and arrived at 10, # 2 the airline lost all his luggage, including the Mags and all the wiring setups , after 5 hours they got a call the luggage was on its way !!! So Right now they are finally starting to put the car together to fire up late tonight and if all is good start the tune in the morning. So Keep your fingers crossed we have no more set backs
__________________
www.laserartworld.com

www.flatcadracing.org
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: pops29 on August 04, 2013, 06:42:17 PM
OK------  Dyno Complete

 The numbers on Gas were good to last years numbers,, Alky was a fight,,  all the runs we too fat and no jets small enough to make any good runs. We will be getting some new jets overnight ed to me and will as Per John Beck  do some leaning with Nytro !!   Buddy and Randy are packing and Headed back to Randys to work on the clutch issues,, not enough throw to disengage,,,,  SEE YOU ON THE SALT !!!!!!!!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: SPARKY on August 04, 2013, 06:47:02 PM
 :cheers:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Milwaukee Midget on August 04, 2013, 09:14:24 PM
Per John Beck  do some leaning with Nytro !!   

Now that's an interesting approach - just keep blending fuel until it matches the jets.  :-D

Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Pete1 on August 04, 2013, 09:34:11 PM
Per John Beck  do some leaning with Nytro !!   

Now that's an interesting approach - just keep blending fuel until it matches the jets.  :-D


Done that many times.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Elmo Rodge on August 04, 2013, 10:14:55 PM
Pete, I forget. Are you gonna be there? Wayno
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Pete1 on August 05, 2013, 12:58:13 AM
Pete, I forget. Are you gonna be there? Wayno

Nope. Maybe October.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Jack Gifford on August 05, 2013, 01:19:10 AM
... no jets small enough...
That's  an unusual-sounding statement for blown-alky. Old-school constant-flow? Can't just keep going larger with the bypass pill?
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: jl222 on August 09, 2013, 11:51:17 AM

  Hope everything is OK

            JL222
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: WZ JUNK on August 09, 2013, 01:13:00 PM
They are on the salt and through tech.  They should make a run tomorrow.

John
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on August 10, 2013, 02:34:02 PM
We are in impound, 167.509 on a 131.028 record.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Peter Jack on August 10, 2013, 02:43:42 PM
Nothing subtle about you guys!!!  :evil: :evil: :evil: :-D :-D :-D

Pete
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Geo on August 10, 2013, 03:07:44 PM
Holy salt, Batman!   :cheers:

Way to go guys. Buddy what a great result from all the hard work. 

Geo
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: desotoman on August 10, 2013, 03:26:11 PM
Congratulations on being in impound. Hope for a good run in the morning.

Tom G.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Plmkrze on August 10, 2013, 03:38:46 PM
OHHH Yeaaa!!

As soon as I get home I'm puttn on my Quest 200 t shirt!!!!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Captthundarr on August 10, 2013, 06:53:39 PM
Woooooo Hoooooo thats showiig them how to do it!!! :cheers: :cheers: :cheers:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: WZ JUNK on August 10, 2013, 09:20:38 PM
Good job.  Good luck in the morning.  I will be listening on my IPad for the results.  I found out today that I can use earphones and the hospitals wifi to listen while I play nurse for my wife. 

John
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: wheelrdealer on August 10, 2013, 10:22:21 PM
Congratulations

BR

Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: WZ JUNK on August 12, 2013, 10:26:21 AM
Randy broke a record on his rookie run yesterday and backed it up this morning.  Congrats to the team. 

John
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: SPARKY on August 13, 2013, 02:03:00 AM
Talked to them this AM---were going to change the axle and frt. end and---and ---then comes the TASK of getting it  LCQ  long course qualified----
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: SteveM on August 13, 2013, 10:43:58 AM
Ba - BAM!  Awesome performance!  I can't wait to hear more updates :cheers:

Steve
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: gkabbt on August 13, 2013, 12:19:51 PM
Buddy just qualified with a 186 on a 185 record in the ALT CC class.
GO GUYS!  :cheers:

Gregg
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: lsrjunkie on August 13, 2013, 12:34:58 PM
HOLY $**T!!! AWESOME!!!  :cheers: Great to hear it guys!  :cheers:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: SPARKY on August 13, 2013, 03:04:04 PM
RIGHT ON KETCH-a-TONE!!!!!!!!!!!!!!!!  :-o :-o
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Roseville Carl on August 13, 2013, 10:46:54 PM
Go gettum FlatCad crew... :cheers: :cheers: :cheers: :cheers:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: jl222 on August 14, 2013, 01:19:26 AM
Buddy just qualified with a 186 on a 185 record in the ALT CC class.
GO GUYS!  :cheers:

Gregg

  WOW :-o 200 mph coming up :-D

  Was that fuel or gas?

             JL222
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on August 18, 2013, 05:22:45 PM
Well, the season is over for us, and it was bittersweet. The  salt is definitely a fickle mistress!

We only made 5 runs on the salt, but feel we accomplished a lot. Out of those 5 runs, we qualified for impound 3 times, licensed a rookie, got that rookie a RECORD, qualified for the long course, and had a top exit speed of 189 mph. The salt didn't treat us as well as we had hoped, but we'll take what successes we can, or what successes we can dream up! Lol!

Here is a quick rundown of our week:

Saturday morning, after the Driver's Meeting, we were the first car down course 3. Dale qualified for XXO/BFALT, with a 167.5 run on a 131.028 record.

Sunday morning we were on the starting line, and fired the engine to warm it up. Wow, we had did a little tuning in impound, and it sounded good! We got to the starting line and fired the engine. WTF? The engine went to popping and back firing, and we had to head to the pits. The coil wire had worked loose on the coil, and arced on the rotor in the dizzy, melting the rotor like I've never seen.We changed dizzies, and were ready to go again.

No worries, Randy Jackson jumped in the car, and we qualified out of the rookie line with a 133.892. Randy and Dale both felt the car was a little loose, we we dropped the rear tire pressure a little.

Monday morning, Randy backed the record with a 156.544 run, for a new record of 145.218. CONGRATS Randy!

We headed back to the pits, and got the car ready for comp coupe, made a trip to tech, then out to the course for a tuning run. The car was FAT, and I ran a 166 in the quarter, and popped the chute. That was a LONG way from where I wanted to be, so I couldn't see any reason to push it.

We went back to the pits, did a gear change, leaned the engine a little, then headed to town for the day.

Tuesday morning, we headed to the starting line. Danny and I were riding the dirt bikes, and a car decided we weren't worth yielding too. Danny bounced off of the rear fender, and I laid my bike down. Road rash is one thing-road rash packed with salt is another! I managed to gash my ankle on the foot peg or kickstand, so out came the medical kit, and we wrapped up the cut.

I have to admit, I made the poorest drive from a driver's standpoint you can imagine! I hard a hard time getting it in gear-think I shifted that 4 speed 6 times! Don will post the video later. Still, the car was running MUCH better, and I qualified on Salt Cat's XXO/BFCC record of 185.111 with a 186.081 run, with a 189 exit speed.

Now, we're getting excited! The plan was to try and back the record, then head to the long course for a 200 mph attempt. After talking with John Beck, and Rich at ERC, we leaned the pill 5, added 2 deg timing, and went to the next hotter spark plug.

Wednesday morning, everyone was excited. We drain the engine water every night, because I'm not comfortable leaving the block full with the copper head gaskets.

Daaaamn guys, we have an air leak in the system-I can't get it burped! Double daaaamn, looks like a head gasket! We pulled the car out of impound, back to the pits, and swapped the passenger head gasket. Oooops-now it's poring water! Long story short, we had cracked the #6 exhaust port, so we loaded up and came home.

I tore into the engine on Friday, and found the problem. Good thing is, that it's not too tough of a fix. I also noticed the #5 intake looks too clean, so we're going to have to investigate that for a possible leak.

I want to thank everyone for all the support here on the board! You guys are great!

A very special thanks goes out to John Beck, for continuously helping us on our tuning, and to Stainless.

Bob, you and Linda's  hospitality was first class, and letting us use your dyno was priceless. Thank you so much! I was so happy, and relieved, to see you show up in the pits, albeit battered and bruised. Obviously, the precautions for safety you had taken, worked! :cheers:

John Kimbrough, you are a fiberglass king! Your work made the car SLICK, and we will continue Quest 200 next year! Thanks again!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Tman on August 18, 2013, 05:37:50 PM
Great to spend some time ribbing you guys, you make good neighbors :cheers:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Freud on August 18, 2013, 06:02:55 PM
I too enjoyed my short visit.

FREUD
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on August 18, 2013, 06:28:14 PM
Trent and Freud, it was great seeing you guys again, too!

In fact, one the the highlights for me is chatting with guys in person that I haven't seen for a year, but have chatted with regularly on this board! :cheers:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: hotrod on August 18, 2013, 07:04:57 PM
It was a pleasure to hang around with you guys when I had the opportunity, and watch the thrash in impound, too bad I could not help much beyond the photography stuff.

Looking forward to how things shake out next year I "love" that new body work, a little more clearance on the top of the front tires and you should have one slick critter out there next year.

Larry
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: GH on August 18, 2013, 10:42:44 PM
Way to go, Buddy and all the crew. Sounds like you had a great time with lots of challenges and solutions. Impound early in the morning is an awesome experience that I will never forget.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Stan Back on August 19, 2013, 11:38:13 AM
I agree.  I'll never forget (or repeat).
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Graham in Aus on August 19, 2013, 10:17:44 PM
Hi Buddy, it was great to meet you, even though it was a real quick hello!

The car was stunning and the performances outstanding, it looks even better when you can stand next to the thing and see all your teams hard work  :cheers:

Tough break with the bike mishap, hope you're not too sore!

Great results well done!  :mrgreen:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: fordboy628 on August 20, 2013, 12:28:14 PM
Buddy & crew,

Tough luck on that crack, but otherwise you guys did GREAT!!   Good luck next year!

Hope you guys heal up from the bike crashes soon.

Best,
Fordboy
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Frankie7799 on August 20, 2013, 01:32:27 PM
Buddy, was great to meet you and to see the Flat Cad in person. It looks even more impressive in person. While SW wasnt quite what you had hoped for, you guys did have a pretty darn good outing. Cant wait to see what happens for you guys next year. See ya then!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: salt27 on August 20, 2013, 08:59:18 PM
Buddy, as always it was great to see you.

Dig those flat cads.

Don and Gus
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: GH on August 21, 2013, 03:32:46 PM
Buddy, you and Randy sure blew Mike Collisons  old record away that he set in the 1950 Buick. He had lost his other records to the Salt Cat Team.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on August 22, 2013, 07:15:45 AM
Thanks everyone! It was great meeting new faces, and seeing old ones! I just wish I was better at remembering names. Due to thrashing, I apologize for not having more time to concentrate on our chats.

I agree, early morning impound is an awesome thing! I wish everyone could experience it once, and sure hope we can return there in the future.

Buddy, you and Randy sure blew Mike Collisons  old record away that he set in the 1950 Buick. He had lost his other records to the Salt Cat Team.

Gary, I wouldn't say we blew it away, as we only raised it 14 mph. We had an initial qualifying run on it at 167.5, but melted the rotor.

Those Salt Cat guys are tough, so it's not surprising they took the rest of Mike's records. I understand they are dusting off the Jag for a return next year, so we're looking forward to them pushing us very hard!

The Salt Car records are hard to qualify on in the short course, so we'll try to run out to the 4 mile next year, and see what happens.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on August 23, 2013, 11:53:14 AM
Well, I've decided that the open trailer, and whole 'Beverly Hilltbilly" look has to go!

We seem to acquire more stuff for the car all the time, and now that we have 2 front ends, extra sheet metal, etc. I've decided an enclosed trailer would be nice. The wife agrees, as it would allow me to collect some of the parts that are now in Ohio and MO.

So, that's the quest I'm on now! :-D
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Sumner on August 23, 2013, 12:05:12 PM
Buddy good meeting you on the salt and congrats on all you did with the car and yes John is a hell of a fiberglasser.  As you know after seeing last year's speeds and HP I thought 200 might be out of reach but you are making a believer out of me with the 189 run that it could happen.  Glad to hear you are going to give it another go,

Sumner
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Pete1 on August 23, 2013, 12:48:38 PM
Well, I've decided that the open trailer, and whole 'Beverly Hilltbilly" look has to go!

We seem to acquire more stuff for the car all the time, and now that we have 2 front ends, extra sheet metal, etc. I've decided an enclosed trailer would be nice. The wife agrees, as it would allow me to collect some of the parts that are now in Ohio and MO.

So, that's the quest I'm on now! :-D


Forget the trailer. Go directly to a two story 18 wheeler. You will eventually anyway.
You can get a good used one from the sprint car guys.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on August 23, 2013, 01:58:00 PM
Sum, it was great meeting you also!

That car looks killer, and it looked like you were enjoying yourself on the licensing runs!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on August 25, 2013, 02:19:00 PM
Trent, this pic is for you! My cutoff shirts have become somewhat infamous, with both you and my team mates commenting on them.

Also, if you remember, last year my rig crews all sported mohawks, and gave me one.

Danny and I had run to town to get parts, and this is what we returned too!

Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on August 26, 2013, 08:43:46 AM
At Speedweek, we were the first car down course 3. These videos show that run, with Dale driving in XXO/BFALT class. This run averaged 167.5 mph, with an exit speed of 168 mph. The first video is from inside the car, the second from outside.

http://youtu.be/FrNT56O8mdQ

http://youtu.be/MQDu7FKpSAg
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: lsrjunkie on August 26, 2013, 09:46:37 AM
Great video Buddy! A little salt first thing in the morning is a pretty good way to start your day!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Stainless1 on August 26, 2013, 09:57:07 AM
Nice run Dale...  :-D that is what LSR is about.  Looked like you were close to the max at that power/aero combo.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Tman on August 26, 2013, 12:15:30 PM
Trent, this pic is for you! My cutoff shirts have become somewhat infamous, with both you and my team mates commenting on them.

Also, if you remember, last year my rig crews all sported mohawks, and gave me one.

Danny and I had run to town to get parts, and this is what we returned too!



We watched them getting ready, funny schtuff!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: desotoman on August 26, 2013, 01:56:19 PM
Dale,

I liked the way you throttled the car in the video.  :cheers:

Tom G.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: manta22 on August 26, 2013, 03:45:46 PM
Nice video. Good straight run; I don't think the driver's hands moved more than one inch on the steering wheel.

Regards, Neil  Tucson, AZ
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Stan Back on August 26, 2013, 06:07:17 PM
Great videos!

Could save a fell lots of $$$ by just watching those two on a big screen.  No getting ripped off for rooms, no long lines, no sunburn (no glory, either).
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: ronnieroadster on August 26, 2013, 08:02:42 PM
 Thanks for the ride really enjoyed it.  If I ever get my car to the salt watching the two videos will help greatly.     :cheers:
 Ronnieroadster
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Pete1 on August 26, 2013, 08:28:16 PM
Excellent video quality.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on August 27, 2013, 11:14:52 AM
Yes, the videos turned out pretty good!

This just in from Dan:

This is our top speed run of the week (( 189 exit speed )) ,, Check out the smoothness of Buddies shifting - this is how you get to be a Professional driver !!!! Just turn a 4 speed tranny into a 8 speed during your run,

http://www.youtube.com/watch?v=0KPIFxS61Us&feature=youtu.be


Et Tu, Don? Betrayed! Betrayed by the unearthing of the lost tape! LOL!  :cheers:

Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Dynoroom on August 27, 2013, 01:17:50 PM
Buddy, your helmet visor was up!    :-o

No rule about it.... Yet. 
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on August 27, 2013, 04:43:25 PM
Buddy, your helmet visor was up!    :-o

Yep! I wore sunglasses, and about the time we took off they started to fog. I need to just get a smoked shield.

Did anyone notice the smoke come into the car, at the end of the run, on what would be the passenger side? The front end worked very well-almost too well! It sucked down, and rubbed a little on the tires, therefore the smoke.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Tman on August 27, 2013, 05:56:46 PM
Buddy, your helmet visor was up!    :-o

Yep! I wore sunglasses, and about the time we took off they started to fog. I need to just get a smoked shield.

Did anyone notice the smoke come into the car, at the end of the run, on what would be the passenger side? The front end worked very well-almost too well! It sucked down, and rubbed a little on the tires, therefore the smoke.


Looks more like weight transfer to the front when you let off made the tires touch.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Rex Schimmer on August 28, 2013, 01:23:22 PM
I would think that when Buddy "threw out the laundry" the chute opening probably caused the front to drop and get a little tire/fender interference and smoke. Damn impressive though!!!

Rex
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Roseville Carl on September 02, 2013, 11:45:01 PM
Congrats to Buddy, Dale, Don, Wrenchbender, and everyone who had anything to do with the FlatCad this year, what a story and the end is yet to be written, 200+ next year!!! Way to go guys!!!!! I personally love it when you can make a 60 year old piece of cast iron fly!!!! 
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: SPARKY on September 03, 2013, 12:32:13 AM
 no flying please   :-D
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Roseville Carl on September 04, 2013, 01:18:20 PM
Hey Buddy I just had an epithany, how about getting someone to donate a ZR1 to put the Flatcad in, hell its made out of fiberglass, should have good aerodynamics out of the box.......... :evil: :-D
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 4-barrel Mike on September 04, 2013, 01:33:54 PM
Hey Buddy I just had an epithany, how about getting someone to donate a ZR1 to put the Flatcad in, hell its made out of fiberglass, should have good aerodynamics out of the box.......... :evil: :-D

The McMeekin Bros' 240SX is for sale: http://ecta-lsr.com/ (http://ecta-lsr.com/) --> Items for sale.

Mike
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Freud on September 04, 2013, 01:38:46 PM
Lease the So Cal streamliner.

It has a Flattie in it.

FREUD
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on September 04, 2013, 07:11:43 PM
Lease the So Cal streamliner.

It has a Flattie in it.

FREUD


Faux sho'!  :wink:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 4-barrel Mike on September 04, 2013, 07:41:55 PM
McMeekins' had one (which is why I suggested it):

(http://i233.photobucket.com/albums/ee171/4-BarrelMike/Flathead%20stuff/200528003.jpg) (http://s233.photobucket.com/user/4-BarrelMike/media/Flathead%20stuff/200528003.jpg.html)

GC/XF      McMeekin D. McMeekin 8/05 156.778

Mike
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on September 05, 2013, 07:15:00 AM
Thanks Mike!

I think this old jalopy still has some potential! We'll look at something else when we can go special construction.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on September 06, 2013, 08:56:15 AM
I'm pretty excited! I made a deal yesterday on a new 'house' for the FlatCad. It should make hauling and working on the car easier!

Guess I'm going to have to keep doing this at least one more year! Lol!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on September 06, 2013, 08:57:50 AM
a few more
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: lsrjunkie on September 06, 2013, 09:32:31 AM
Right on Buddy! Looks pretty slick!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Milwaukee Midget on September 06, 2013, 10:09:18 AM
I'm pretty excited! I made a deal yesterday on a new 'house' for the FlatCad. It should make hauling and working on the car easier!

Guess I'm going to have to keep doing this at least one more year! Lol!

Room there for both the Flat Cad and the Midget.

Pick me up on the way by . . .  :cheers:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: hotrod on September 06, 2013, 11:30:31 AM
Sweet looking car palace!

Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Freud on September 06, 2013, 11:54:25 AM
First thing you do is buy the BEST tires you can buy.

That's the solution to an ongoing problem and the best

insurance policy you can have.

Do it now. You will end up doing it along side the road sometime

if you don't do it before you hit the trail.

FREUD
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: desotoman on September 06, 2013, 02:25:34 PM
Buddy,

Nice trailer and I am sure you will get good use out of it.

What I need is the BARN next to the trailer.  :-D

Tom G.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: awelker on September 06, 2013, 04:59:09 PM
Awesome trailer! Plenty of room for goodies.

Don't know what your tow vehicle is but when I got my 24' enclosed and towed on the highways for the first time I got pushed around pretty much from semi's.  Not wanting a 5000 mile white knuckled round trip, decided to go for a special anti-sway hitch.  Not cheap but absolutely no sway, not your regular sway bar or cam-locks, its an odd arrangement but works.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: WOODY@DDLLC on September 06, 2013, 06:54:00 PM
Buddy are you going to be selling time-shares for Speed Week?  :? :? :?

Nice rig!!  :cheers:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Milwaukee Midget on September 06, 2013, 06:56:05 PM
Buddy,

Nice trailer and I am sure you will get good use out of it.

What I need is the BARN next to the trailer.  :-D

Tom G.

Tom, you could probably break it down and have Buddy deliver it to you.  :cheers:

Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: saltwheels262 on September 06, 2013, 07:38:33 PM
that trailer has so many addons that you are going
to use. should save you a lot of money.

looking to upgrade my 5 by 8 V nose now.
those extras are big $. I'm sure you know.

good point on the tires, and there are 6 that can go bad.

picked up a nail coming back from limestone in July ;  after being alerted
by a motorist in Mass., had enough time to get off the highway to a safe spot.
by then the sidewall was crapped out. went about 30 miles on the spare and
 couldn't take it anymore-- stopped in a mid-size town and found brand new
 trailer tires to fit . had one mounted and the other one was taken care of
back in Cleveland . a brand new set.

buddy, check the sidewall date codes on any tires you purchase.
mine were produced in June.

Franey
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Freud on September 06, 2013, 11:58:55 PM
Tom......what are you going to store the barn in?

You don't have time to raise it even if you had it.

FREUD
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Roseville Carl on September 07, 2013, 01:58:48 AM
Ya know Buddy you can sell the house and live in there, more money for the Flat Cad.............. :cheers:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: desotoman on September 07, 2013, 03:02:15 PM
Buddy,

Nice trailer and I am sure you will get good use out of it.

What I need is the BARN next to the trailer.  :-D

Tom G.

Tom, you could probably break it down and have Buddy deliver it to you.  :cheers:




Tom......what are you going to store the barn in?

You don't have time to raise it even if you had it.

FREUD

Chris and Freud,

Thanks, but what I meant is that I need to find a Barn like that around here for all my junk.

Tom G.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Freud on September 07, 2013, 04:09:59 PM
Tom G.

I just figured you would store the barn along with all

of your other treasurers. I could imagine your neighbors

banding together to help you put it out of sight.

Sorta like it was a collectable.

FerD
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: desotoman on September 07, 2013, 04:42:35 PM
Doc,

I sent you a PM. Now let's get back to the topic, which is Buddy's 38 Chevy Coupe Build.

Thanks,

Tom G.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on September 08, 2013, 08:43:29 AM
Thanks guys! I'm pretty excited to have an enclosed trailer for the car!

Freud, the first thing I'll do is make sure I have good tires-I hate changing flats!

awelker, it has a load distributing hitch, so I should be in good shape!

Woody, I can put a cot in there for you-we'll just have to lock you in every night! LOL!

Franey, I'll be checking the tires out closely-Thanks!

In the mean time, Randy and I got the engine out of the car and on a shipping pallet. The engine is headed to Don's shop. I'll fly out there on the 20th, and Don and I will dismantle the engine.

Lock-N-Stitch is just around the corner from Don, so we'll drop the block off there for repair.

My goal is to get the engine back together by December, and on the dyno by January. We're not planning any engine changes this year, just repair, and test and tune!

Aero, on the other hand, will continue to be attacked! :-D
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Roseville Carl on September 08, 2013, 08:19:49 PM
thats wierd shifting linkage Buddy...........
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: ronnieroadster on September 08, 2013, 08:55:48 PM
thats wierd shifting linkage Buddy...........
  Still more shifting jokes to funny  :cheers:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: pops29 on September 11, 2013, 07:40:38 PM
thats wierd shifting linkage Buddy...........

  That is way wrong       BUT GOOD   LOL !!!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Glen on September 11, 2013, 08:13:37 PM
Add sway bars to the hitch.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: jimmy six on September 11, 2013, 09:22:28 PM
With 6 tires I would carry 4 spares............ :-D
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on September 12, 2013, 09:26:17 AM
Thanks for the advice, and laughs, everyone!

The engine is crated, and on a truck, headed to Don's shop. I'll fly in on the 20th, so he and I can take it apart, then have it repaired at Locknstitch.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Milwaukee Midget on September 12, 2013, 09:31:30 AM
Buddy,

Nice trailer and I am sure you will get good use out of it.

What I need is the BARN next to the trailer.  :-D

Tom G.

Tom, you could probably break it down and have Buddy deliver it to you.  :cheers:




Tom......what are you going to store the barn in?

You don't have time to raise it even if you had it.

FREUD

Chris and Freud,

Thanks, but what I meant is that I need to find a Barn like that around here for all my junk.

Tom G.

Why move it twice?  Just throw the barn up around it!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on September 16, 2013, 05:43:53 PM
The engine was delivered to Don in Turlock this afternoon. I'll be flying in Friday, so that we can take it a part, assess the damage, and get it repaired.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: lsrjunkie on September 16, 2013, 07:19:29 PM
Good to hear it! Hope it's not too bad.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Roseville Carl on September 17, 2013, 09:09:05 PM
Good to hear it! Hope it's not too bad
x2 Tell Don Hi! :cheers:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on September 22, 2013, 10:22:09 AM
Well, we had been worried we were stressing the block too much, and that the exhaust port crack was a 'stress' crack.

It was, but not because we were hammering the engine too hard! When we switched from head bolts to studs, it seemed like a great idea-still does. However, the studs were just a tad too long, and were tightened into the port, cracking it! So, the damage is self-induced!

We thought maybe this happened on the salt, but now know better-we never touched the drivers side studs, yet they are showing the same symptoms. this from Don:

I removed the heads and took a good look at area we cracked and you can see by
the picks we are lucky we did not do this to all the ports.  These pics are from
the opposite side of the block we cracked  look close you can see where the
studs jammed against the back side of the runners


So, we'll write this down as a learning experience, and get the studs trimmed!. We also scored one cylinder. We won't know until we tear it all the way down if there was a ring issue, or if the water leakage possibly washed the oil away, causing the damage.


The roller lifter setup worked great, and looks great, but I'll let Don post that up! :-D
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Milwaukee Midget on September 22, 2013, 11:00:27 AM

The FlatCad is so far out of the norm that you are in the process of writing the procedure manual as you go.

This malady falls into the category, "Good ideas that you have no reasonable expectation of failing until something dumb happens."

So this will be in the appendix of the text, with an asterisk, and a note on the repair procedure.

 
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: gkabbt on September 22, 2013, 11:04:48 AM

The FlatCad is so far out of the norm that you are in the process of writing the procedure manual as you go.

This malady falls into the category, "Good ideas that you have no reasonable expectation of failing until something dumb happens."

So this will be in the appendix of the text, with an asterisk, and a note on the repair procedure.

 

 :-D  :-D  :-D

Gregg
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Stainless1 on September 22, 2013, 01:43:17 PM
Buddy, how tight were the studs put in?  I was always under the impression that studs should be bottomed, torqued 5-10, some folks locktight them, I don't.  If you tighten them to the top thread you will damage that part.  Maybe the area above the ports is too thin and those holes should be a bolt.
Just a thought...

BTW Linda said the second bottle was also outstanding... and you guys are invited over any time.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on September 22, 2013, 02:12:03 PM
Chris, it's hard to argue your logic, cuz you're right!

Stainless, I'm not sure what happened. We usually only snug the studs up with our fingers. The only thing I can come up with, is that when we torqued the head nuts, the studs turned with them.

I'm glad Linda enjoyed the wine, as we sure enjiyed our stay there!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Stainless1 on September 22, 2013, 02:14:56 PM
Almost forgot, you need to stop by for some of the Bushmills.... it is smooooooooooooooooooooooth
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 4-barrel Mike on September 22, 2013, 02:58:27 PM
FWIW, ARP install instructions for 2.3L Ford head studs says: Screw studs into the block “HAND TIGHT ONLY”.

Dunno about any other sets.

Mike
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Jack Gifford on September 23, 2013, 12:49:24 AM
... The only thing I can come up with, is that when we torqued the head nuts, the studs turned with them...
That seldom happens with fine-threads at the top and coarse-thread at the bottom.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Milwaukee Midget on September 23, 2013, 01:08:32 AM
I've gotten two stories on Locktite with head studs - both equally plausible . . .

A - NEVER use it.  It centers in the threads, and when you draw it tight and then the engine gets warm, it breaks down just enough to loosen the clamp load on the head.

B - IF you use it, torque it immediately so the stud threads are drawn up tight into the threads of the block.

I don't know who to believe, so I used only one drop on the head studs toward the end with the shank, and I didn't bottom the stud down in the block. 

One thing nice about ARP studs is that they have an Allens head in the end.  When I assembled the engine, I left about 1/2 turn from the bottom and held the stud in place while cinching up the head.  Then I torqued it down with ARP lube.

When I pulled the head a few weeks ago, most of the studs were loose enough to remove by hand.

So I still don't know who to believe . . .  :|

Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on September 23, 2013, 07:34:26 PM
Almost forgot, you need to stop by for some of the Bushmills.... it is smoooo
ooooooooooooooooooth

Stainless, I only hope it's as good as advertised!

Mike, thanks for the info! That is the way we normally do it, along with some thread sealer, to keep the water from leaking. I'm not exactly sure what happened this time!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: pops29 on September 23, 2013, 08:37:33 PM
I had some spare time on my hands waiting for the motor to show up so I built a portable hoist setup that we can take apart and take with us to BV. or where ever there is a motor to pull . it is all alum , the legs slip in to sockets and it can be assembled in about 10 min or less, It will lift 1000lb.
(http://www.jalopyjournal.com/forum/picture.php?albumid=31768&pictureid=485465)
(http://www.jalopyjournal.com/forum/picture.php?albumid=31768&pictureid=485467)
(http://www.jalopyjournal.com/forum/picture.php?albumid=31768&pictureid=485466)
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: pops29 on September 23, 2013, 08:38:57 PM
Buddy bet me I could not wait to open up the motor and check out my lifter system -- Well he was right , I could not wait - I was nerves of course ,, but after I opened it up and checked it out It was like brand new .. all the valve lashes were right on and the surfaces are perfect. We will change out the rollers every year as a maintenance routine just to be safe
(http://www.jalopyjournal.com/forum/picture.php?albumid=31768&pictureid=485461)
(http://www.jalopyjournal.com/forum/picture.php?albumid=31768&pictureid=485464)
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: lsrjunkie on September 23, 2013, 09:00:45 PM
That's awesome! Great to hear an untested idea get a thorough thrashing on the salt and live up to everyone's expectations! We might have to come up with an idea to adapt that roller system to a Jimmy!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on September 24, 2013, 09:06:08 AM
Don, that roller lifter setup is soooo sweet-very nice job!

That's a nice potable engine hoist, nut I hope we never have to use it! I guess we better get the backup engine ready, just in case, though!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Rex Schimmer on September 24, 2013, 03:09:26 PM
Do the crank and rod bearing look good? Your roller lifters and cam are BEAUTIFUL!!!!

Rex
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: pops29 on September 24, 2013, 03:39:06 PM
Thanks ---     we have not torn the engine down yet,  I only tore the top end off, with the floods in Colorado Buddy needed to stay home. We plan on October 21 for the teardown
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Tman on September 24, 2013, 06:07:44 PM
Good thing you guys have such nice gear and pit close to us! :-D

Thanks for the adhesive this year BTW :cheers:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Roseville Carl on September 27, 2013, 03:16:48 PM
Don that 'A" frame will come in handy for all the transmission swaps.............
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: pops29 on October 06, 2013, 06:30:08 PM
I have an up dated as I do the dirty work.... Cleaning up all the parts,, I split the heads and cleaned the chambers to check the coating if there was any damage like last year had. I was pleased to see they held up a lot better . here is a few areas with minor issues but I think we can run them without re coating

(http://www.jalopyjournal.com/forum/picture.php?albumid=31768&pictureid=487453)
(http://www.jalopyjournal.com/forum/picture.php?albumid=31768&pictureid=487454)
(http://www.jalopyjournal.com/forum/picture.php?albumid=31768&pictureid=487455)

Last year we had between the 2 half's of the head allot of heat indicators that told us we were running lean at Ohio this year they look good
(http://www.jalopyjournal.com/forum/picture.php?albumid=31768&pictureid=487456)
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: pops29 on October 06, 2013, 06:33:14 PM
SO ---- As I was cleaning the heads I made a decision to take some parts to Valley Balancing to run through there cleaning tank,, I decided to remove the oil pan and go ahead and have it cleaned also------------WELL BIG SURPRISE AWAITED !!!!!!!

This is what I found in the bottom of the pan

(http://www.jalopyjournal.com/forum/picture.php?albumid=31768&pictureid=487459)
(http://www.jalopyjournal.com/forum/picture.php?albumid=31768&pictureid=487458)
(http://www.jalopyjournal.com/forum/picture.php?albumid=31768&pictureid=487457)
(http://www.jalopyjournal.com/forum/picture.php?albumid=31768&pictureid=487461)
(http://www.jalopyjournal.com/forum/picture.php?albumid=31768&pictureid=487460)


now --- where did a 1/8" roll pin come from ??????? the Mag ? NO all good ,, So I dug in a little further and removed the distributor mounting block and the front cover !!!!!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: pops29 on October 06, 2013, 06:37:18 PM

   
warning _____ these images can be disturbing !!!!!!


Buddy was upset we could not make an attempt to backup our 186 MPH run but the flatcad gods were looking down on us that morning ..... this is what I found


This is the timing gears or what is left of it !

(http://www.jalopyjournal.com/forum/picture.php?albumid=31768&pictureid=487463)
(http://www.jalopyjournal.com/forum/picture.php?albumid=31768&pictureid=487462)
(http://www.jalopyjournal.com/forum/picture.php?albumid=31768&pictureid=487464)
(http://www.jalopyjournal.com/forum/picture.php?albumid=31768&pictureid=487465)

If we did go out for the backup run it would have let go !!!!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: RichFox on October 06, 2013, 06:45:14 PM
Good find. When i was plasma coating aluminum with ceramic, we used steel grit that was very coarse and sharp. Gave the ceramic a good bite. And went straight from the blaster to the spray booth before the aluminum could begin to oxidize. Those were bigger engines with fewer pistons.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Peter Jack on October 06, 2013, 07:36:39 PM
Pops29, for some reason your images don't show up on the computer. I can imagine what you're showing but I'd sure like to see the pictures. Sometimes my imagination's a little distorted.  :roll: :roll: :evil:

Pete
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: pops29 on October 06, 2013, 07:46:45 PM
not sure why u cant see them ????  you can try here  --   http://www.jalopyjournal.com/forum/showthread.php?t=728009&page=36

Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on October 06, 2013, 07:55:17 PM
Don, the pics now show up for me.

Well, it's apparent we weren't going to be successful on the backup run, even if we had not had the port issue!

Don reports the dizzy housing is scored, so it's apparent we lost at least part of the gear pin from either the dizzy or mag. :?

Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: GH on October 06, 2013, 08:13:15 PM
Buddy, I visited with John K and Randy J at Mo-Kan today. Randy has a bad case of SALT FEVER.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on October 07, 2013, 08:06:03 AM
Buddy, I visited with John K and Randy J at Mo-Kan today. Randy has a bad case of SALT FEVER.

Haha! It's great, isn't it? :cheers:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: DND on October 07, 2013, 08:37:22 AM
Hi Pops

I used Summers Bros gear drives on my customer engines and they were a great product

During the set up on a new unit the backlash was set, and the crank was turned to look at something else and for grins I checked the gear lash and no Clink - Clink

Back to top center and it was fine, turns out the cam gear was out of round

So Bob sent me a few more gears to check and they were bad, had distorted in heatreating and they had made 100 pcs [ they were not happy campers ]

Maybe one of your gears might have been that way too, and loaded the bearing in the tight spot

After that I always checked for the Clink= Clink in several spots of crank rotation to be on the safe side

G Don
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on October 07, 2013, 08:46:24 AM
Don, thanks for the info! I have confidence in this Donovan gear drive, and will be sending it back to them to rebuild.

I don't think the problem was in the unit. I simply don't think you can run metal roll pins through them and expect them to survive! :-o
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: pops29 on October 09, 2013, 11:15:43 PM
 Ok The mystery is solved !!! I tore the front timing cover off and I found more crushed up steel

(http://www.jalopyjournal.com/forum/picture.php?albumid=31768&pictureid=488040)

So as I was looking around at the parts I removed and

(http://www.jalopyjournal.com/forum/picture.php?albumid=31768&pictureid=488042)

I found where the pin came from

(http://www.jalopyjournal.com/forum/picture.php?albumid=31768&pictureid=488043)

this is an anti-rotation pin for the idler gear shaft.. What we think is we started to lose the bearing and the shaft rotated and sheared the pin. We will now look in to the oiling system to the front of the cover
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: charlie101 on October 09, 2013, 11:20:46 PM
Is it just me or is there no pictures since Reply #2051? I tried both IE and Mozilla! The last pic I can see on HAMB is also the same as on this forum, the cylinders in Reply #2051!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Stan Back on October 10, 2013, 12:43:33 PM
It's just you.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Sumner on October 10, 2013, 01:13:32 PM
Is it just me or is there no pictures since Reply #2051? I tried both IE and Mozilla! The last pic I can see on HAMB is also the same as on this forum, the cylinders in Reply #2051!


Same for me  :? :? :?,

Sum
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Peter Jack on October 10, 2013, 01:18:44 PM
I'm still having the same issue on both my mac and a pc.

Pete
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on October 10, 2013, 01:24:18 PM
It’s hit and miss for me-one time they’re there, then they’re not, then they are! :?

Looking at the damage, it appears we need to add a couple of oil sprayers to the gear drive. I think the dry sump worked too good in this case, and we probably ‘starved’ the gear drive for oil.

I’ll send the gear drive back to Donovan, and see what they think, and let them repair it.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 4-barrel Mike on October 10, 2013, 01:31:59 PM
No pics for me here or on the HAMB link, IE10, IE11.

Mike
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: charlie101 on October 10, 2013, 01:45:41 PM
Maybe Jon can see if there's something wrong with the site or if it's something with the pics in question. Seems like some can see them and some dont. I can't say if the problem is on just this thread as I am not following discussions on many others. I am leaning toward something funky with something else than my computer.  I tried with IE and Mozilla and run them in foolproof mode, cleaned the comp. coockies, addons, history and also harddrive more than once.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Seldom Seen Slim on October 10, 2013, 01:49:13 PM
Well, the worst I can do is find the photos and see that there's nothing I can do about 'em being farkled.  Point me to them or to the post where they don't work and I'll take a look-see.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: charlie101 on October 10, 2013, 01:58:36 PM
No pictures to be seen since Reply #2051 in this thread. I will point them out the minute I see them! :-D
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: RichFox on October 10, 2013, 02:34:26 PM
Plenty of pictures here
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: saltwheels262 on October 10, 2013, 02:41:48 PM
no pics on my tablet.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: charlie101 on October 10, 2013, 03:04:53 PM
If RichFox posted pics, i can't see them. I posted an attachment, to see if that'll stick.
Well, I can see it.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: LittleLiner on October 10, 2013, 03:08:06 PM
Is it just me or is there no pictures since Reply #2051? I tried both IE and Mozilla! The last pic I can see on HAMB is also the same as on this forum, the cylinders in Reply #2051!


Same for me  :? :? :?,

Sum

Me three
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: lsrjunkie on October 10, 2013, 03:20:14 PM
Me too also.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: desotoman on October 10, 2013, 03:27:13 PM
Let's see if this works. These are PoP's pictures. I see them fine.

Tom G.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 4-barrel Mike on October 10, 2013, 03:40:22 PM
Those look good, Tom.  Where is PoP linking the pics from?

Mike
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: charlie101 on October 10, 2013, 04:05:18 PM
 But I can see the light again, halleluja!
That'll work, a bit small perhaps, at only 30 some kb.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on October 10, 2013, 04:06:48 PM
looks like they are from Jalopy Journal? http://www.jalopyjournal.com/forum/picture.php?albumid=31768&pictureid=487463

Here are the rest of the pics.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on October 10, 2013, 04:09:16 PM
But I can see the light again, halleluja!
That'll work, a bit small perhaps, at only 30 some kb.

Charlie101-double click on the pics to enlarge them.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 4-barrel Mike on October 10, 2013, 04:35:39 PM
looks like they are from Jalopy Journal? http://www.jalopyjournal.com/forum/picture.php?albumid=31768&pictureid=487463

Here are the rest of the pics.

Completely empty page (0 bytes) for me.  The previous link to the HAMB thread had no pics either.   :?

Mike
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: desotoman on October 10, 2013, 04:36:58 PM
looks like they are from Jalopy Journal?

Nope, I copied them from POPS post on here. I use Firefox and can see everything fine.      
Re: XXO/BVGC '38 Chevy Coupe Build
« Reply #2080 on: October 09, 2013, 10:15:43 PM »

Tom G.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Peter Jack on October 10, 2013, 04:38:55 PM
Rich, you're magic. All is exposed. Thanks!!!  :cheers: :cheers: :cheers:

Pete
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Frankie7799 on October 10, 2013, 05:16:27 PM
Ouchie! Hopefully Donovan can repair the gear drive for ya Buddy.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Seldom Seen Slim on October 10, 2013, 05:23:34 PM
I found the posts without photos that used to be there.  For anyone else that is/was clueless, look around post #2060 in this thread.  I don't know why they're not, either, but'll take a gander at why.  Unless you tell me that it isn't worth the bother now - that enough has been seen, or that they've been posted again.  Let me know, hey?
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: pops29 on October 10, 2013, 05:35:49 PM

 Wow --  I guess I know how to gather a crowd    -- lol   :evil:

  I am not the best at posting but I did do it like I did in the past and I could see them fine--- any help on posting in the future would be great.

 
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Roseville Carl on October 10, 2013, 07:54:40 PM
Hey Don with your skills don't worry about pics....... just keep on keepin on!!!!!! :-D :-D
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on October 11, 2013, 06:14:53 PM
Ok The mystery is solved !!! I tore the front timing cover off and I found more crushed up steel

(http://www.jalopyjournal.com/forum/picture.php?albumid=31768&pictureid=488040)

So as I was looking around at the parts I removed and

(http://www.jalopyjournal.com/forum/picture.php?albumid=31768&pictureid=488042)

I found where the pin came from

(http://www.jalopyjournal.com/forum/picture.php?albumid=31768&pictureid=488043)

this is an anti-rotation pin for the idler gear shaft.. What we think is we started to lose the bearing and the shaft rotated and sheared the pin. We will now look in to the oiling system to the front of the cover


Donovan says this gear drive will only fail if something runs through the gears. They also say, that nothing of the gear drive would break and run through the gears, and it must have been something on our end.


REALLY? :?




Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: DND on October 12, 2013, 02:35:38 AM
Maybe your unit had a out of round gear like I talked about in post # 2078, and that killed the idler bearing

If you have no ' clink - clink '  in the gears 360 something has got to give, either the ball bearing or the cam bearing

G Don
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on October 13, 2013, 06:07:43 AM
Don, something was definitely wrong, and we need to get to the bottom of it.

I haven’t seen it in person yet, but will next weekend.  Just theorizing, I wonder if we are getting oil to it? With the dry sump, and no ‘splash’ oil, it’s possible it doesn’t get enough.  At the very least, we’ll add a couple of spray nozzles in the cover this year.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: tauruck on October 13, 2013, 09:04:48 AM
The nozzles won't hurt and you'll be more at ease. I really hope you find the problem.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: pops29 on October 23, 2013, 06:02:12 PM
Well, Buddy and I finally got together at my place this weekend to do the tear down on the motor ,, here are the results ..

well it looks as after a few self inflicted wounds,(( cracking of the block, head gasket issues, and edge clearance issues on the main bearings )) the motor held up fantastically . All the bearings look great, the scoring in the cylinders can be honed out. ect.

as for the self infliction -- the Block was looked at by the owner of lock-n-stich and he explained the process of the repairs to the cracks, and we feel this is the way to go. I will see if we can get some progress pictures of the repairs and post them. We also spent some time with Kenny Boyd at his shop to look over all the parts and he was impressed with the condition of the parts so we will proceed with having the block repaired, then to Kenny's shop for pressure testing the block, clearancing the main bearings, honing of the bores and lapping the valves. Buddy is working on ordering new coated bearings and new rings.

Here are the pics

cam held up great with the new roller lifter setup as did the lifters and blocks
(http://www.jalopyjournal.com/forum/picture.php?albumid=31768&pictureid=490335)
(http://www.jalopyjournal.com/forum/picture.php?albumid=31768&pictureid=490334)
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: pops29 on October 23, 2013, 06:05:21 PM
now for self infliction !!!!!! we scored the top edge of 4 pistons on one side of the block by not having the head gasket aligned correctly you can see the interference in the pics

(http://www.jalopyjournal.com/forum/picture.php?albumid=31768&pictureid=490331)
(http://www.jalopyjournal.com/forum/picture.php?albumid=31768&pictureid=490330)
(http://www.jalopyjournal.com/forum/picture.php?albumid=31768&pictureid=490329)
(http://www.jalopyjournal.com/forum/picture.php?albumid=31768&pictureid=490328)
(http://www.jalopyjournal.com/forum/picture.php?albumid=31768&pictureid=490333)
(http://www.jalopyjournal.com/forum/picture.php?albumid=31768&pictureid=490332)
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: pops29 on October 23, 2013, 06:06:47 PM
here is a few shots of the crank

(http://www.jalopyjournal.com/forum/picture.php?albumid=31768&pictureid=490338)
(http://www.jalopyjournal.com/forum/picture.php?albumid=31768&pictureid=490337)
(http://www.jalopyjournal.com/forum/picture.php?albumid=31768&pictureid=490336)
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: pops29 on October 23, 2013, 06:07:41 PM
All in all this was great news !! It shows this motor can take the abuse of the SHIFTING GURU BUDDY  :-o and stay together. :cheers:. This year we plan on a bunch of changes, all in the small details,, areo, complete electrical re-wire (( thanks to Bob at Rebel Wire our newest sponsor )), fabrication of new exhaust system ect.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: pops29 on October 23, 2013, 06:28:39 PM


   
Maybe, I should have said SHIFT MASTER BUDDY  :-D
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Stainless1 on October 23, 2013, 07:18:16 PM


   
Maybe, I should have said SHIFT MASTER BUDDY  :-D

Looks like you put an extra F in there Pops...  :-D   :roll:  :cheers:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on October 23, 2013, 07:29:38 PM


  
Maybe, I should have said SHIFT MASTER BUDDY  :-D

Looks like you put an extra F in there Pops...  :-D   :roll:  :cheers:

Now that's just plain mean! LOL! :-D

Don, I don't see any pics!

edit: Just logged back in and now can see pics!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Rex Schimmer on October 23, 2013, 07:47:22 PM
Buddy,
The cam and crank look great! I would give lots of credit to the Pall filter system you have on the dry sump return lines. Also did you use straight 50 wt oil as we discussed? as it the crank looks a lot better than last year.

Rex
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on October 23, 2013, 08:03:11 PM
We did go to straight 50W oil, and between that and the Pall filters, the cam and crank look great!

The head gasket on the passenger side was was not properly aligned on the dowel pins, and 'slipped' down partially over the chambers, causing the markings on the pistons. We'll dress the pistons, and address the head gasket issue upon reassembly.

other than the head bolts cracking the port, and the bearing in the bear drive, the only other casualty is the bearing on the fuel pump spud drive-it was shot.

All in all, it looks to me like we need to push this thing harder! Lol!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: DND on October 23, 2013, 08:33:47 PM
How do I get the engine pics to come up, as I don't see a thing

Thanks, Don
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Sumner on October 23, 2013, 09:53:32 PM
How do I get the engine pics to come up, as I don't see a thing

Thanks, Don

Likewise and I logged out and back in again and that didn't help,

Sum
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: charlie101 on October 23, 2013, 10:49:41 PM
here is a few shots of the crank

(http://www.jalopyjournal.com/forum/picture.php?albumid=31768&pictureid=490338)
(http://www.jalopyjournal.com/forum/picture.php?albumid=31768&pictureid=490337)
(http://www.jalopyjournal.com/forum/picture.php?albumid=31768&pictureid=490336)

What is with the picture thing? When I reply with quote I can see the pic address but on the site there's nothing!
Google the pic address gives nothing. Where can I view the pics? pretty annoying.
Cutting out the brackets and "IMG" i get this but just a black screen and one white pixel.

http://www.jalopyjournal.com/forum/picture.php?albumid=31768&pictureid=490338
http://www.jalopyjournal.com/forum/picture.php?albumid=31768&pictureid=490337
http://www.jalopyjournal.com/forum/picture.php?albumid=31768&pictureid=490336
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on October 24, 2013, 06:23:33 PM
Well, Buddy and I finally got together at my place this weekend to do the tear down on the motor ,, here are the results ..

well it looks as after a few self inflicted wounds,(( cracking of the block, head gasket issues, and edge clearance issues on the main bearings )) the motor held up fantastically . All the bearings look great, the scoring in the cylinders can be honed out. ect.

as for the self infliction -- the Block was looked at by the owner of lock-n-stich and he explained the process of the repairs to the cracks, and we feel this is the way to go. I will see if we can get some progress pictures of the repairs and post them. We also spent some time with Kenny Boyd at his shop to look over all the parts and he was impressed with the condition of the parts so we will proceed with having the block repaired, then to Kenny's shop for pressure testing the block, clearancing the main bearings, honing of the bores and lapping the valves. Buddy is working on ordering new coated bearings and new rings.

Here are the pics

cam held up great with the new roller lifter setup as did the lifters and blocks
(http://www.jalopyjournal.com/forum/picture.php?albumid=31768&pictureid=490335)
(http://www.jalopyjournal.com/forum/picture.php?albumid=31768&pictureid=490334)

Charlie, I'm not sure what's going on with the pics, but thanks for posting them up for those that can't see them.

Here are so more.....
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on October 24, 2013, 06:25:11 PM
now for self infliction !!!!!! we scored the top edge of 4 pistons on one side of the block by not having the head gasket aligned correctly you can see the interference in the pics

(http://www.jalopyjournal.com/forum/picture.php?albumid=31768&pictureid=490331)
(http://www.jalopyjournal.com/forum/picture.php?albumid=31768&pictureid=490330)
(http://www.jalopyjournal.com/forum/picture.php?albumid=31768&pictureid=490329)
(http://www.jalopyjournal.com/forum/picture.php?albumid=31768&pictureid=490328)
(http://www.jalopyjournal.com/forum/picture.php?albumid=31768&pictureid=490333)
(http://www.jalopyjournal.com/forum/picture.php?albumid=31768&pictureid=490332)

.....and here are the rest!

You can see how the gasket installation allowed interference with the piston.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Peter Jack on October 24, 2013, 06:59:36 PM
I'm wondering if you have to be registered on jalopyjournal.com to see the pictures or even any sign of them. The only way I get to see where they are is to hit the quote button and it shows them as Charlie showed. When I go into the source there's still only a blank page.

You guys that can see the pictures must think we're nuts because there's absolutely nothing that even indicates you're trying to post a picture.

Pete
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: fredvance on October 24, 2013, 07:01:48 PM
Pictures, what pictures?? :-o
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: gkabbt on October 24, 2013, 07:18:57 PM
I can't see the pictures either, even when I do the cut and paste of the link to jalopy journal....Like PJ said, only a blank page.

Gregg
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Stan Back on October 24, 2013, 07:55:09 PM
All the pictures are there for me -- even the re-pictures.

But chat -- no!!!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: charlie101 on October 24, 2013, 08:00:33 PM
Totally blank, both with Mozilla firefox 24.0 and Explorer. Vista OP. java updated. No pics. I installed a gadget for Mozilla that should take care of pics with some kind of backslash in the address, but that didn't help. Slashy 1.8.0. I don't know if it is in function, he wanted a donation.
The last I can see in the HAMB is still only the attached thumbnails in reply 699. Same same as reply 2051 here. After that something must have changed.
No, I can see the reposted pics later on page  140, sorry but only those.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on October 24, 2013, 08:20:22 PM
Can everyone see the pics after the are re-posted as a 'quote?

Maybe SSS can weigh in on this-certainly is strange to me!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: gkabbt on October 24, 2013, 08:51:37 PM
I still cannot see the pics. I just did a cut and paste of these links that were posted earlier and all that came up on jalopy journal were blank windows.

http://www.jalopyjournal.com/forum/picture.php?albumid=31768&pictureid=490338
http://www.jalopyjournal.com/forum/picture.php?albumid=31768&pictureid=490337
http://www.jalopyjournal.com/forum/picture.php?albumid=31768&pictureid=490336

Gregg

EDITED TO ADD:
I'm running Windows XP SP3 and use IE8.

Also:

Just tried with Firefox and no pics.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 4-barrel Mike on October 24, 2013, 09:24:01 PM
None of the pics have worked for me, including those on jj

Mike
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Seldom Seen Slim on October 24, 2013, 10:03:22 PM
Buddy:

Howsabout you just send the photos to me and I'll get them posted?  They'd be in one post, not scattered through your diary -- sorry.  But they'll be posted.  I'd put them in the Photobucket album and that'll get them visible.  I still don't know for sure why you're having troubles.  Maybe a PM to me, detailing what you're doing to try to post 'em and where will give me some ideas of what you're doing that only works fro a few folks, not everyone.

Bedtime for Nancy - and therefore for, too. :evil: :roll: :cheers: :cheers:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: pops29 on October 24, 2013, 10:11:58 PM
Buddy:

Howsabout you just send the photos to me and I'll get them posted?  They'd be in one post, not scattered through your diary -- sorry.  But they'll be posted.  I'd put them in the Photobucket album and that'll get them visible.  I still don't know for sure why you're having troubles.  Maybe a PM to me, detailing what you're doing to try to post 'em and where will give me some ideas of what you're doing that only works fro a few folks, not everyone.

Bedtime for Nancy - and therefore for, too. :evil: :roll: :cheers: :cheers:

 I will send you the pics tomorrow
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: desotoman on October 24, 2013, 11:41:52 PM
Slim, Pops, Buddy etc,

I see every picture just fine. I have Vista and Firefox 24.0, if that helps.

Tom G.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Sumner on October 25, 2013, 12:31:26 AM
Slim, Pops, Buddy etc,

I see every picture just fine. I have Vista and Firefox 24.0, if that helps.

Tom G.

Interesting with Windows 7 and Firefox 24.0 I can't see the pictures and on my other computer that I don't use much with Vista and Firefox 16.0.1 I still can't see them.  Just updated the older computer (has Vista) to Firefox 24.0 and still can't see them.

Wonder if it is a security setting some of us might have and others don't???

Sum
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Peter Jack on October 25, 2013, 12:35:38 AM
Is everyone who can see the pictures registered on jalopyjournal.com?

I'd try registering but I already spend way too much time on the computer! :-( :-( :-(

Pete
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: charlie101 on October 25, 2013, 03:20:22 AM
No, for me logged in or not, nothing helps. Might perhaps have to do with the pic. file type. At the end of the address? I can view .jpg pics, but he's got .php at the end?
One more thing that annoys a bit, When I for the first time click "save" a reply, I get linked back to the forum home and have to search back to the thread I just replied on!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Stainless1 on October 25, 2013, 09:51:35 AM
101, additional options, check return to this topic, it will take you back to your reply.

I have not seen any of the pics... but I am looking forward to seeing them
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on October 25, 2013, 11:40:46 AM
Don, I wonder if this issue is because the pics are 'tied' to the HAMB?

Can you try posting them straight from your host site?
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Sumner on October 25, 2013, 12:04:59 PM
Don, I wonder if this issue is because the pics are 'tied' to the HAMB?

Can you try posting them straight from your host site?

I went to the H.A.M.B. (haven't been there for some time) and can see the pictures there logged on.

(http://www.jalopyjournal.com/forum/picture.php?albumid=31768&pictureid=490335)

(http://www.jalopyjournal.com/forum/picture.php?albumid=31768&pictureid=490331)

(http://www.jalopyjournal.com/forum/picture.php?albumid=31768&pictureid=490336)

I right clicked on the picture there and used the "copy image location" option in the window.  Then pasted them into this post using the 'image' button in the 'post reply'  (second button to the right on the second row down).

The pictures seem to post fine in this manner.

So can everyone see these?

Sum

============================

Our Endeavour 37

Our MacGregor 26-S Pages

Our Trips to Utah, Idaho, Canada, Florida

Mac-Venture Links
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: fredvance on October 25, 2013, 12:49:34 PM
Nothing here :?
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Ron Gibson on October 25, 2013, 12:53:45 PM
nothing here either :?

Ron
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Seldom Seen Slim on October 25, 2013, 02:27:55 PM
...and nothing here in Skandia, Michigan, either.  We'll get this done yet. . . :?
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Peter Jack on October 25, 2013, 03:20:20 PM
I think Sum's got the answer. His posting acts exactly the same in that there's no sign of the picture posting except when I use the quote function. I still don't see the pictures even then. I think you have to be registered in the HAMB board to be able to see the pictures.

As I said before, I have nothing against the HAMB board but I already spend too much time on the computer and I don't need another diversion.

Pete
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Stan Back on October 25, 2013, 04:08:31 PM
That could be it.  I'm registered on the HAMB, tho I spend very little time there.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Sumner on October 25, 2013, 04:42:37 PM
.... I think you have to be registered in the HAMB board to be able to see the pictures...Pete

You do have to be logged in over there.  Once I went over there and logged in I can see all of the previous pictures posted along with the ones I posted.  I'm registered on the HAMB but haven't been logged in there for some time.

The pictures need to be posted somewhere else other than the HAMB and linked to or you need to upload them off of your computer to here.  Linking to the HAMB just isn't going to work if you want everyone here to see what you are posting,

Sum
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 4-barrel Mike on October 25, 2013, 05:11:00 PM
Years ago, Ryan would get side-ways angry with people who cross posted pics off of the HAMB.  I haven't logged on in years, so I don't know about now.

Mike
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Tman on October 25, 2013, 06:54:30 PM
Years ago, Ryan would get side-ways angry with people who cross posted pics off of the HAMB.  I haven't logged on in years, so I don't know about now.

Mike

Not at all, he has always welcomed it.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Graham in Aus on October 25, 2013, 07:58:13 PM
Can confirm this, first look, no pics, open HAMB in another window, log onto HAMB, come back here and refresh....

Pictures!

Well done Sum!  :cheers:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on October 29, 2013, 02:58:47 PM
Well, it appears as if the picture mystery is solved, so we can move on to other things!

The block is at Lock-N-Stitch, to be repaired. When it's repaired, we will hone the bores, and start the assembly process.

The MSD Dizzy is headed back to MSD, for a freshening up. We'll Probably run a MSD 20 mag next year, so this dizzy will be a backup.

The gear drive is repaired, and headed back to us! I reported how the initial call went, but since then, my opinion has completely changed!

Donovan feels we may have a clearance issue on the crank, and that may be putting the idler bearing in a bind. Their second thought is inadequate oiling. In spite of the fact that they feel we may have inadvertently caused the problem, They paid for all of the repairs! I only had to pay for a new front seal I requested, and the shipping!

Donovan has now set the drive up with a crank gear that is cut a few thousands deeper, to help with any clearance issues we may have. I have to give MAJOR PROPS to Donovan, for really standing behind their product!!!! :cheers: :cheers: :cheers:

Don and I looked the drive over when I was at his house last week, and came up with a plan to add oil sprayers to it, so hopefully we can cure any oiling issues we may have.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on October 29, 2013, 03:58:30 PM
I believe some motorcycles had aluminum head gaskets.

Is here a reason that copper is used, instead  of aluminum? Don has the capability to make aluminum head gaskets.

It seems to me that if a soft aluminum were to be used, it would work very well with our o-ring/receiver groove setup.

I'm thinking of a soft, annealed aluminum:



   
6061-O Soft Annealed Aluminum Alloys - Sheet
   

   Sheet

larger image      This is the most versatile of the heat treatable aluminum alloys. It has most of the good qualities of aluminum, and it offers a wide range of mechanical properties and corrosion resistance. It can be fabricated by many of the commonly used techniques.

In the annealed condition it has good formability. In the T4 condition fairly severe forming operations may be accomplished. The T6 properties may be obtained by artificial aging.

It is welded by all methods and can be furnace brazed. It is available in the clad form ("Alclad") with a thin surface layer of high purity aluminum to improve both appearance and corrosion resistance.

Specifications: QQ-A-250/11, AMS 4025

Color Marking (Rod and Bar): Ends painted Blue
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: RichFox on October 29, 2013, 04:43:11 PM
If he can make aluminum gaskets he can make copper gaskets, I would think. I did a "Make your own copper head gasket" piece for the BRN  few years ago. Not hard to do. Bob Dalton punched out an aluminum gasket for me to try out my dimensions, and then used the same program for the copper ones. So CNC punch press or Bridgport it's pretty easy if i can do it. In fact I found a picture from that story
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 4-barrel Mike on October 29, 2013, 04:48:49 PM
larger image

Once again, no pictures.   :-(

Mike
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Tman on October 29, 2013, 04:59:31 PM
No pictures for me this time also.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on October 29, 2013, 05:30:08 PM
If he can make aluminum gaskets he can make copper gaskets, I would think. I did a "Make your own copper head gasket" piece for the BRN  few years ago. Not hard to do. Bob Dalton punched out an aluminum gasket for me to try out my dimensions, and then used the same program for the copper ones. So CNC punch press or Bridgport it's pretty easy if i can do it. In fact I found a picture from that story

Don can laser cut aluminum. We would do a masking and chemical etching in areas to reduce the thickness and leave a band around the chambers and the studs. Just some Ideas we are messing with-I can't see wht it wouldn't work.

mike, Trent-there are no pics this time! The only pic was a flat piece of aluminum in the description I copied ans pasted! :-D
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Tman on October 29, 2013, 05:44:05 PM
OK! :-P
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Sumner on October 29, 2013, 05:58:33 PM
...mike, Trent-there are no pics this time! The only pic was a flat piece of aluminum in the description I copied ans pasted! :-D

Was the picture from HAMB again?  If so that isn't going to work for a number of people on here  :cry:,

Sum
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on October 29, 2013, 08:17:43 PM
...mike, Trent-there are no pics this time! The only pic was a flat piece of aluminum in the description I copied ans pasted! :-D

Was the picture from HAMB again?  If so that isn't going to work for a number of people on here  :cry:,

Sum

Sum, I think we've learned our lesson about the HAMB pics! This was just a pic of a flat sheet of aluminum that was in with the product description. When I copied the text, the pic simply didn't post with the text-I didn't try and post a pic.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Sumner on October 29, 2013, 08:24:01 PM
...mike, Trent-there are no pics this time! The only pic was a flat piece of aluminum in the description I copied ans pasted! :-D

Was the picture from HAMB again?  If so that isn't going to work for a number of people on here  :cry:,

Sum

Sum, I think we've learned our lesson about the HAMB pics! This was just a pic of a flat sheet of aluminum that was in with the product description. When I copied the text, the pic simply didn't post with the text-I didn't try and post a pic.

Great, I didn't see the 'flat sheet' so started to panic  :oops:,

Sum
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: roygoodwin on October 29, 2013, 11:38:29 PM
Wikipedia says that the melting point of copper is "1984.32 °F" while aluminum's melting point is "1220.58 °F".  (different alloys of either would be different ).  Sooo, the question in my mind is would the 700ish deg difference be a problem ?  I dunno, but something to think about.

roy
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: charlie101 on October 30, 2013, 12:24:08 AM
There's also thermal conductivity that can play some roll in it, from what I understand copper has some 1/3rd better conductivity in hot state than aluminium. And Copper expands much less than Alu that with an alu gasket may impose some creep problem. A fiber gasket can allow a lot more shear movement than solid materials. Multi layer StainlessSteel gaskets can allow shear between the layers without breaking.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on October 30, 2013, 10:59:35 PM
Wikipedia says that the melting point of copper is "1984.32 °F" while aluminum's melting point is "1220.58 °F".  (different alloys of either would be different ).  Sooo, the question in my mind is would the 700ish deg difference be a problem ?  I dunno, but something to think about.

roy

Roy, I would think that if the melting point would be a problem, we'd experience the same problem with the heads, correct?


There's also thermal conductivity that can play some roll in it, from what I understand copper has some 1/3rd better conductivity in hot state than aluminium. And Copper expands much less than Alu that with an alu gasket may impose some creep problem. A fiber gasket can allow a lot more shear movement than solid materials. Multi layer StainlessSteel gaskets can allow shear between the layers without breaking.

I'm not too worried about the heat conductivity, as both the block and heads are water cooled. The added expansion could be a problem, but could possibly work in our favor- if we could get the torque right, the expansion could possibly help with sealing. I think!

I would love to use a fiber, or multi layer stainless gasket, but cannot get anyone to make one for us.

Aluminum is a lot softer than copper-maybe too soft is the issue? It may be that aluminum 'loses it's shape' after being torqued with the o-rings digging into it?

From Wikpedia- lead has a hardness of 5HB, aluminum 15HB, copper 35HB, and mild steel 120HB

So, some motorcycles run aluminum head gaskets, and a lot of cars have aluminum header gaskets. Does anyone know why aluminum isn't, or can't be used for head gaskets?

...Sorry, I don't necessarily always buy into the "if it worked, everyone would be doing it" thing! :evil:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: RichFox on October 30, 2013, 11:52:49 PM
Well if aluminum is that soft, why do you need a head gasket? You have aluminum heads. I dropped my head gasket right after annealing it and that copper gets pretty soft. 
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on October 31, 2013, 10:13:03 AM
Well if aluminum is that soft, why do you need a head gasket? You have aluminum heads. I dropped my head gasket right after annealing it and that copper gets pretty soft. 

Rich,
 
The heads are much harder than the soft material I am proposing. Plus, without a head gasket, not only would we lose our quench area, the pistons would hit on the heads!
 
Aluminum is cheaper than copper, plus Don can laser cut aluminum, but not copper.
 
From Don:

Anything that is reflective when it melts (copper, brass, lead, etc.) cannot be laser cut without special equipment that closes the laser shutter when strong reflections are seen. and each lens cost 600.00 plus 3 to 5 hr  to clean the mirrors after you blow one up --  and boy did we blow them up when we first got the machine ,, lol   
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Milwaukee Midget on October 31, 2013, 10:26:16 AM
Heck, if you're going to laser cut your own gaskets, why not make yourself a set of mls gaskets?

Let's face it, with the capabilities you've already demonstrated, cutting six stackable embossed sheets of stainless shouldn't be that tricky.

 :cheers:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on October 31, 2013, 10:32:57 AM
Chris, one of the issues is getting the material.

One of the advantages of using the aluminum, if we can get it to work, is being able to acid etch it, and get the bosses around the stud and water jackets.

Where's Fordboy? I'd sure like to hear his take on the use of aluminum for head gaskets!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: manta22 on October 31, 2013, 11:30:41 AM
Copper can be etched with ferric chloride.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on October 31, 2013, 11:34:09 AM
Copper can be etched with ferric chloride.

Thanks Neil!

The real issue with copper is the expensive upgrade that would need to be made to Don's machine, where he can cut up to .250 aluminum with no upgrade!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Rex Schimmer on October 31, 2013, 01:19:58 PM
Buddy,
You seem to be chained to Don's laser cutting machine, you could get the same accuracy and make the gasket from anything from aluminum to granite if you had them water jet cut. Accuracy is +or- .005 inch, not quite as close as a laser but certainly good enough for a head gasket. I really don't think that aluminum would make a good head gasket, I would assume that you would use 1100 or 3003 alloy, both of which can be annealed but again "if it is such a good idea why doesn't everyone use them?"

Rex
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on October 31, 2013, 01:28:40 PM
Rex, I respect the fact that you, and others, don't think the aluminum is a good idea, and I'll admit to being hard-headed.

....But WHY isn't it a good idea????  I have no issue abandoning the idea, if I can find empirical data proving it worthless, or real experience of others that have tried it and failed.

As for "if it is such a good idea why doesn't everyone use them?", I see a lot of things tried successfully on the salt that everyone knows won't work! Talk to Kenny Kloth sometime-he did a lot of stuff to his old flathead that doesn't work, except it did! :wink:

We're not chained to Don's machine, but it sure would be cheaper and easier!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: tauruck on October 31, 2013, 01:54:18 PM
Dang, I'd love to be chained to any machine right now!
Buddy, you'll get it figured.  :cheers:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: desotoman on October 31, 2013, 03:38:00 PM
Buddy,

Many years ago Kong Jackson made some aluminum head gaskets for the Ford Flathead. He sold them to some of the guys back then. I think McCain & Houtz bought some and tried them, so you might contact them and ask their opinion, or ask if they knew of someone that has run them.

I was lucky enough to buy some of Kong's first run which were copper head gaskets, so I never bought the aluminum ones, which were the second run of gaskets he made.

Tom G.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on October 31, 2013, 03:47:12 PM
Thanks Tom!

Any idea on how to contact them?

EDIT: I just remebered Jimmy Stevens used to be hooked up with them, so I have a call in to him. I'll let you know his thoughts on the head gaskets!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: desotoman on October 31, 2013, 03:57:41 PM
Buddy,

I think they are in the Super Fours Car club, so I would start there. I don't have a current contact for them.

Tom G.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on October 31, 2013, 11:14:14 PM
Thanks Tom!

I talked to Jimmy Stevens, who drove with/for McCain & Houtz. He said the aluminum works,but not as good as copper. He said he didn't have o-rings at the time, though.

He thought that instead of using the rubber coated Flatout gaskets, we should burn the coating off while annealing the gaskets.

So, the plan is to make and etch the aluminum gaskets, anneal the copper gaskets, and try them both on the dyno.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on November 01, 2013, 08:45:32 AM
What if we quit trying to get the gasket to crush into the receiver groove? We enlarge the gasket cylinder opening, until it is just to the outer edge of the receiver groove, and have the o-ring go directly into the groove. We could use copper wire, and that would become our 'fire ring'.
 
The only remaing issue at that point is sealing water. We could used acid etched mild steel, aluminum, or copper, and seal with spray on Hylomar.
 
What do you guys think?
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Dynoroom on November 01, 2013, 04:35:38 PM
Some of the racing Boss 429 Fords (among others) ran a "dry deck" block, no head gasket. Just sealing rings around the bores and o-rings around the water jackets. (top photo)

I also took a VQ35 Nissan that I turbocharged and used sealing rings around the bores with a corresponding receiver groove in the head. The gasket was used to seal coolant & oil only. (next 3 photos)

Then again, the old Offys never used a head gasket or any type of sealing rings at all.....     8-)
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: ronnieroadster on November 01, 2013, 06:14:59 PM
  When "O" ringing my ARDUN block I did not include a receiver ring in the head I found the deck "O" ring which is a .041 stainless upon torquing made a perfect locating ring in the dead soft copper head gasket that I make. The copper sealed perfectly against the head with the additional pressure produced from the "O" ring pushing from below. The narrow width deck just above the cylinder on the flathead Ford block shows no sign of leaking cylinder pressure into the area of the where the valves were once located. While this application is only on my street motor I still push 10 pounds of boost when I feel the need to play. Just saying  in my opinion the receiver grove is not needed. Even with the 24 head bolts holes  I know on the Ford flathead block the weak point for sealing would be in the location of the lone bolt hole between the end cylinders.
     But not having any experience with the Flatcad block is there a lack of clamping force you are trying to help with by including the receiver grove?  :?
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Rex Schimmer on November 01, 2013, 06:38:50 PM
Mike,
The sealing ring that you show with the Nissan head, is it a hollow ring with gas inside or does it have a grove that allows combustion gas to get into it to expand it to make the seal. I once was 1/2 owner of a BMW 320 that was raced in IMSA and it had the 2 liter turbo motor, well we "blowed her up"! one time on Drakes dyno so I got to see how they sealed the cylinder and they used a Vee shaped ring that fit into a bored relief in the cylinder, similar to the Nissan. The open part of the V faced the combustion area so the combustion pressure helped energize the ring to force itself against the cylinder and the head. Also the ring stood a few thou proud of the top of the deck so when you put the head on it compressed the V and initiated the seal. There is a name for this type of seal ring which Stu told me but it has completely slipped my mind. (Age strikes again!)


Nice try on the OFFY not having a head gasket!!! That was because the head and the block were a single casting! Also probably why they would take 50-60 lbs of blower boost in qualifying trim.

Rex
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Dynoroom on November 01, 2013, 07:04:29 PM
Cooper seals was the original name on the sealing rings we used in the 60's & 70's. These were filled with nitrogen and reusable. I've also used the type that were "wound" and used compression gases to load them to the head/block seal.

Here's a couple more pictures of the current sealing rings in the Nissan...

Oh, and that Offy head gasket issue...... I knew you'd get it!    :cheers:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Peter Jack on November 01, 2013, 07:37:36 PM

Nice try on the OFFY not having a head gasket!!! That was because the head and the block were a single casting! Also probably why they would take 50-60 lbs of blower boost in qualifying trim.

Rex

Just as a point of interest Rex, we played around at one point and found that by blocking off the line running from the plenum to the blow off valve we could get a reading of 80 pounds on the gauge. They were tough engines with a somewhat weak lubrication system and a bit of a challenge for those doing the valve grinds.

Pete
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: DND on November 02, 2013, 06:14:21 AM
After yrs of using the copper wire I switched to the ' Soft Black Steel Wire ' that held its round shape

The top of the copper wire would get flattened out some, where the soft steel wire would stay round and push into the head gasket better

Plus on a rebuild you did not have to replace the wire like with copper

Just my 2 cents worth

G Don
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on November 05, 2013, 08:14:15 AM
Thanks guys!  You’ve given me a lot to think about!

One of the options I’m considering was suggested by Dynoroom 2 years ago, and I failed to follow his suggestion, although it’s obvious now that I should of. He suggested using ordinary sewing thread, like your wife uses to put buttons on your shirt, and put a single loop (with the ends parallel to each other) around each water and oil port. Put them in place with some spray on Hylomar.

The other option I’m considering, although not as much as Dynoroom’s suggestion, is stacking two copper head gaskets, and In between, milling receiver grooves for a wire coincident with the path of the block O-rings. We could adjust the loading by way of the wire diameter.



We’re still working to get our aero better, but I’m very encouraged with our progress so far! Using Sumner’s worksheet, http://purplesagetradingpost.com/sum...20A%20Lakester ,and my fastest run of 189 MPH, I would estimate between a .4 and .45.

So, my HP needs look something like this:

CD                            .4             .45             .5

RWHP for 189 MPH       482           535           587

RWHP for 201 MPH       571           635           698



This, of course, assumes my CD estimates are close!

HP Needed for a Specific Speed:
= = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = =

Input Rolling Resistance ======> .024 <== (Note:
Input Car Weight =============> 5000
Input Frontal Area in Sq. Ft. ====> 24.00
Input Cd For Car Body Only====> 0.45
Input Velocity in MPH =========> 201

Body Drag Force = 1064

HP for Rolling Resistance = 37 HP
HP Needed for Car Body = 598 HP
HP For 4 Tires/wheels = HP

For this Speed = 201 MPH

Total RWHP Needed is = 635 HP

So, what's the point? The point is, 200 MPH becomes far more achievable when one looks at the HP needed! If we can lower our CD, to under a .4, it will only get better and better! :-D
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: SPARKY on November 05, 2013, 08:36:02 AM
how much have you whittled off the requirement with your aero efforts????   :-D
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on November 05, 2013, 08:50:28 AM
Sparky, intially we ran both classes open wheeled. I believe we went from about a .55 CD, to between a .4-.45. Our goal is to get under .4, as close to .35 as possible.

We have some aero engineers from University of California, Merced, looking at the car on their computers, to try and maximize our efforts.


       
Input Rolling Resistance ======> .024 <== (Note:  I'd use .015 for speeds of 0-150, .024 for 150-250, .039 over 250 mph)
Input Car Weight =============> 4600       
Input Frontal Area in Sq. Ft. ====>  24.00  (NOTE : For a Car or Streamliner make Inputs below here zero)
Input Cd For Car Body Only====>  0.55       
Input Velocity in MPH =========>  163  Input Front Tire Cd ====>  0.00   
   Input Front Tire Dia. ====>  24   
Body Drag Force =  855  Input Front Tire Width ===> 5   
   One Front Tire's Frontal Area =  0.833 Sq. Ft.   
HP for Rolling Resistance =  30 HP HP Needed For One Front Tire =   HP   
HP Needed for Car Body =  390 HP     
HP For 4 Tires/wheels =   HP     
       
For this Speed =  163 MPH     
       
Total RWHP Needed is =  420 HP

Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Geo on November 05, 2013, 09:20:55 AM
Like the new paint!  :cheers:

I don't remember.  :|  Did you get a hp reading from the engine build / tune?

If so, how does it compair to the speed you ran and soes this confirm the numbers calculated from the spreadsheet?

Geo
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Sumner on November 05, 2013, 11:47:19 AM
Like the new paint!  :cheers:

I don't remember.  :|  Did you get a hp reading from the engine build / tune?

If so, how does it compair to the speed you ran and soes this confirm the numbers calculated from the spreadsheet?

Geo

I think he put the HP numbers in and then played with the Cd till the mph matched.  So he is trying to back into the Cd number for the car via the known HP and Speed.  With that know he can figure out what the new Cd has to be or HP has to be to run the 201.  I think his .40 to .45 are probably close.  I'm not sure if there is enough that can be changed though to get down to .35.  I am beginning to believe with the 189 run that 200 might be there in the right conditions  :-).

I was trying to help John (who did the body work) figure out how to improve the front last spring and wanted to see the lower part of the front in the tire/fender area go further out front and be more rounded back into the fender tire area with a smoother transition into the sides.  I guess that was not possible with the piece of fiberglass that they found to work with for that area.  There is no doubt though that what John did sure helped.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on November 05, 2013, 01:46:54 PM
Sumner is correct- I took known values, then 'backed into my CD. It's only a best guesstimate, but it's more than I started with. He is also correct in the fact that what John K. did helped us immensely!

Sum, your probably right about it being tough to get to a .35 CD, but we still have some things we can do, if the computer backs up our theory.

Change our exhaust exit, cover/bring the windows out flush with the body, mount our spoiler lower (suggested by Blue), and possibly make the front end mods you suggest.

We'll go in this year with a top tune from the start, where last year we were 'sneaking up on it. Add the extra HP to the mods we'll do this winter, and I'm confident we have a pretty good chance!

As you know, these numbers are meaningless, unless we can prove them on the salt! What they do tell me, though, is the HP needs I once thought might be near impossible, are probable!

Of course, all things are probable when one is bench racing-the salt will tell the tale!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Roseville Carl on November 08, 2013, 01:44:45 PM
Yea but isn't it neat to be able to bench race with all the great mathmatical formulas available now, gives ya some hope that what you are thinking just might work. :-D :-D......................
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Roseville Carl on November 25, 2013, 12:55:13 PM
Ok Buddy you get lost out there in cyberspace? Lookin for a Flatcad update........ :?
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: fordboy628 on November 25, 2013, 07:33:21 PM
I believe some motorcycles had aluminum head gaskets.

Is here a reason that copper is used, instead  of aluminum? Don has the capability to make aluminum head gaskets.

It seems to me that if a soft aluminum were to be used, it would work very well with our o-ring/receiver groove setup.

I'm thinking of a soft, annealed aluminum:



   
6061-O Soft Annealed Aluminum Alloys - Sheet
   

   Sheet

larger image      This is the most versatile of the heat treatable aluminum alloys. It has most of the good qualities of aluminum, and it offers a wide range of mechanical properties and corrosion resistance. It can be fabricated by many of the commonly used techniques.

In the annealed condition it has good formability. In the T4 condition fairly severe forming operations may be accomplished. The T6 properties may be obtained by artificial aging.

It is welded by all methods and can be furnace brazed. It is available in the clad form ("Alclad") with a thin surface layer of high purity aluminum to improve both appearance and corrosion resistance.

Specifications: QQ-A-250/11, AMS 4025

Color Marking (Rod and Bar): Ends painted Blue

What if we quit trying to get the gasket to crush into the receiver groove? We enlarge the gasket cylinder opening, until it is just to the outer edge of the receiver groove, and have the o-ring go directly into the groove. We could use copper wire, and that would become our 'fire ring'.
 
The only remaing issue at that point is sealing water. We could used acid etched mild steel, aluminum, or copper, and seal with spray on Hylomar.
 
What do you guys think?

Flattie,

Sorry to be MIA, running a serious development project AND working for the red queen . . . . . .

Gaskets can be made of anything; ie: steel, copper, aluminum, cork, sewing thread, shirt cardboard, etc.   BUT, HEAD gaskets, by their very nature, need to fulfill a wide variety of sealing, especially when water & oil passages are combined with the task of sealing combustion.   The gasket material of choice needs to be selected primarily for the ability to contain combustion heat & pressures within a flexural zone, with the clamp load applied by threaded fasteners.   Distortions can (in your case, surely) occur in the castings, as the clamp load is applied.    How significant the distortions are, will influence the amount of stiffness and/or conformability required of the gasket material, for reliable service.   (ie, solid annealed copper Vs. aluminum Vs. MLS embossed steel, etc.)   Since oil and water passage sealing can be selectively "band-aided" by various sealants & methodologies, I suggest you do the following:

Buy a roll of white butcher's paper and a roll or several sheets of carbon paper.   Make two paper patterns of your head gasket(s), 2 per side, and 1 pattern of the head gasket from the carbon paper. Lay the butcher paper on the block, lay a single layer of carbon paper (no overlaps!!) on the paper, and cover with another layer of butcher paper.    Torque the fasteners carefully to your spec, DO NOT OVER TORQUE!!   Do this for both heads.    The carbon imprint left on the paper will give you a good idea of how stiff/flexible your block to head area is, with a clamp load applied.   This little exercise can also be done with a gasket in place.    The cost to do this is virtually nothing, except for your time, and I guarantee you will learn quite a bit, OR scare yourself!!   Low tech, but very effective . . . . .

RELATIVE clamp load can be altered by changing the torque, size of the fastener, etc.    Fastener torque, sealants, sewing thread, O-rings, etc, all change and/or concentrate the clamp load.   Once you have an idea of how well you can concentrate the clamp load, you can make an intelligent choice of gasket material.   Even clamp loads will allow you to use a conformable material such as MLS steel or aluminum.    Uneven clamp loads will need a stronger (stiffer) gasket such as copper.

My choice, if it were up to me: Since your engine has a blower, and the resultant high combustion pressures & temperatures, I would use solid annealed copper gasket with a hardened steel o-ring in the block and a receiver groove in the head.     I would work out the dimensions for the O-rings & receiver groove based on the carbon paper testing.   The more evenly you can distribute the clamp load around the combustion chamber opening, the better ANY gasket will seal.

As others have pointed out the best head gasket for blower engines is: NO HEAD GASKET!! Ala Offy or Ferrari Lampredi.

If I were you though, I would just be glad I had more than 3 head bolts per cylinder, ala your BMC buddy Milwaukee Midget!  :-D
 :cheers:
Fordboy

After thought:  You could also "drydeck" the water and oil passages for rubber/neoprene/Buna-N O-rings.   O-rings don't need much compression for effective "static" sealing.   Oil passages would need a compound compatible with hot oil . . . . . .
F/B
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Rick Byrnes on November 25, 2013, 08:58:47 PM
Listen to that (ford) boy.  He sounds like the gasket engineer I used to be.
The carbon paper will show you the way.
Load distribution can cause all kinds of concerns in a boosted engine.
All that caused me to use gas filled "O" rings on the turbo motor. and like F/B said elastomer "O" rings at fluid and drainback passages.  All the machining to do this is worth it..
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: WOODY@DDLLC on November 26, 2013, 11:45:47 AM
Slightly more $$ but this will give you more info than carbon paper: http://www.pressuremetrics.com/catalog/index.php

Look at bolted contact, pressure films, samples. Maybe they will sponsor you some samples!

Buddy, be sure to share your results!  :-o :-o :-o
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Richard 2 on November 26, 2013, 10:33:35 PM
Buddy how many times do you re-tork the heads before you run WOT.
For what its worth.
We use copper gaskets with steel O-rings. I have to re-tork at least 4 times before the shrinking and stretching stop. Even then I get movement spots on the head gasket. (+-) 40lb of boost, Aluminum head and block.
Richard 2
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: tauruck on November 26, 2013, 11:30:08 PM
Fordboy, Thanks for that. It should help Buddy but it sure helped me. :cheers: :cheers: :cheers: :cheers:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: fordboy628 on November 27, 2013, 09:01:18 AM
Fordboy, Thanks for that. It should help Buddy but it sure helped me. :cheers: :cheers: :cheers: :cheers:

Tauruck,

You're welcome!   I'm happy to list my thoughts and experiences from my 35+ years of building and "refining" (ie, "repairing mistakes or built in factory weaknesses") racing engines.   Just my humble opinion though, as there are always more ways to "skin a cat".

I learned this method from a senior engineer of the Fel-Pro company, way back in the 70's.   It has always been useful for me, hope it works as well for you.

The big trick in all of this is to find the most "cost effective" method of problem solving which provides the level of reliability the owner (that would be the "check writer") can accept . . . .       How reliable do racing engines need to be?    I'm of the opinion that reliability IS a "performance factor".
 :cheers: :cheers: :cheers:
Fordboy
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: fordboy628 on November 27, 2013, 09:13:47 AM
Buddy,

As others have pointed out, retorque of the head fasteners is critically important to head gasket reliability.   I just want to add my experience with alloy heads combined with cast iron blocks.    The difference in expansion rates between the two materials creates a "creep rate" at the gasket interface.   Best retorque procedure needs to start with a "cold" engine assembly.   I have found it to make a huge difference Vs. a "hot" retorque.    It is especially valid in engine assemblies where the head gasket clamp load may be marginal for the stresses applied.    This means you, Rover K-series engine lovers . . . . . . .    :roll:
 :cheers:
Fordboy
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Roseville Carl on December 26, 2013, 01:20:07 AM
Happy Holidays to all the FlatCad Crew and wishing you all the best in 14!!!!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on January 02, 2014, 02:26:32 PM
I hope everyone had a Merry Christmas and a Happy New Year! :cheers:

Fordboy, thanks for the info! I'll read up on it!


Well, we haven't been around much, but we have been busy!
 
Bob and Danny have been color sanding the car, and rewiring everything. The car looks great! see pic. The car should show well at GNRS!
 
Don has been working on the mockup engine, and working with lock n stitch to repair the block. They repaired the known damage, only to find more. see pics. Good news though, the block should be finished in a week!
 
We have a new tee design, that we will roll out at GNRS.
 
Finally, here is a video for you to watch. We entered into the Champion sponsorship contest, and Misty Willey of Tulsa, OK did a couple of videos for us. Misty and Glen, Thank you SO MUCH!
 
Here is the one we entered, and the contest starts Monday. we sure could use all of your votes!
 
http://alwaysachampion.com/search-for-a-champion/entry/1568064#.UsILqbRPmLE
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Roseville Carl on January 02, 2014, 05:42:38 PM
You know ya got ours!!!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Milwaukee Midget on January 02, 2014, 07:01:36 PM
    It is especially valid in engine assemblies where the head gasket clamp load may be marginal for the stresses applied.    This means you, Rover K-series engine lovers . . . . . . .    :roll:
 :cheers:
Fordboy

Funny how he can give kudos to you guys and slam my future plans all in one fell swoop . . .  :roll:

Geez - those old castings.  Carry on, guys.  The stiffer you make it, the easier it will be to work with.

I keep thinking of what was left of Pedro's Dodge banger . . .
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: jpm49c on January 02, 2014, 08:19:05 PM
As others have pointed out the best head gasket for blower engines is: NO HEAD GASKET!! Ala Offy or Ferrari Lampredi.
 And Crosley!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Stainless1 on January 02, 2014, 09:27:36 PM
Yea, just too bad it didn't start life that way... would have make it a lot easier...

Can't vote for 4 more days, you may have to remind some of us old more experienced folks  :roll:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: fordboy628 on January 03, 2014, 08:35:42 AM
    It is especially valid in engine assemblies where the head gasket clamp load may be marginal for the stresses applied.    This means you, Rover K-series engine lovers . . . . . . .    :roll:
 :cheers:
Fordboy

Funny how he can give kudos to you guys and slam my future plans all in one fell swoop . . .  :roll:

Mon ami, you wound me . . . .  not intended as a slam, just trying to raise awareness . . . . .

Geez - those old castings.  Carry on, guys. 

I recall when a "seasoned" casting was preferable . . . . . . . . .

Flattie,
Have you considered cryogenic treatment of the block casting to try to relieve stresses and/or improve the strength?   I'm unsure if this process could be used successfully at this stage of your engine build, (since it may impact a lot of precision machining), but I would consider consulting a firm that specializes in this process to inquire whether they can improve the block's strength with one of their processes.   It might be something to consider for the next engine buildup.   This is a process LOTS of pro teams use, and do not talk about.

http://www.customdesignperformance.com/ecatalog/cryo.html

http://www.aera.org/engine-professional/cryogenics/

These are a couple of reference sites.  Usually, the folks who do these processes, do not need to advertise . . . . . . . . . .
 :cheers:
Fordboy
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Rex Schimmer on January 03, 2014, 02:11:28 PM
Be sure to go to the second site that Fordboy listed and down load the complete magazine, "Engine Professional" not only an article on cryogenics but racing valves, racing connecting rods, good info on crank tolerances and more. Now we know where he gets his stuff!!

Speaking of cryogenics it looks like you could probably just take your block to Lambo Field this weekend and get it done for free! Greenbay and the weather will kick the 49ers butts!! and I leave in the S.F. area.

Rex
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: fordboy628 on January 04, 2014, 12:56:39 PM
Now we know where he gets his stuff!!

Rex

Well, not entirely.   Most of the stuff comes from:
A/  40+ years in the racing engine, engine rebuilding, engine machining business while paying attention . . . . . . . . . (requires a drive to keep learning)
2/  Industry and racing community contacts I've made over the years and kept up with . . . . . . . . . .  (requires you to be a friendly and pleasant human being to deal with)
d/  Focused internet searching, as there is a LOT of information out there, some good, some less useful  . . . . . . . . . . (requires you to develop a BS filter and commit to thinking through and testing these bright ideas)

BUT, as I have freely admitted on many occasions:  Anybody can do what I do.

Now that I'm older, it is easier for me to recognize that I owe a debt to those individuals who pointed me in the right direction when I was younger and 'knew everything'.   Since I can't repay them, I pay it forward by trying to help others when I am able, and the others actually want the help.

After all, I'm not going to be around forever.   Too much of a burden on humanity . . . . . . .
 :cheers: :cheers: :cheers:
Fordboy
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on January 04, 2014, 05:52:29 PM
Well, our show engine is ready to install into the car! Don has done a great job getting it ready! :-D
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Freud on January 04, 2014, 07:32:40 PM
This is only a slight bend in the road from this site.

I found this in Popular Mechanics, February 2014

It puts our cars definitely in the computer generation.

http://www.popularmechanics.com/cars/news/industry/this-bolt-is-the-key-to-gms-high-tech-assembly-line-16324897

Thanks, Pal.

FREUD
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Sumner on January 04, 2014, 08:11:09 PM
Well, our show engine is ready to install into the car! Don has done a great job getting it ready! :-D

Beautiful Buddy  :cheers:,

Sum
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: RidgeRunner on January 05, 2014, 09:16:37 AM
Now we know where he gets his stuff!!

Rex

Well, not entirely.   Most of the stuff comes from:
A/  40+ years in the racing engine, engine rebuilding, engine machining business while paying attention . . . . . . . . . (requires a drive to keep learning)
2/  Industry and racing community contacts I've made over the years and kept up with . . . . . . . . . .  (requires you to be a friendly and pleasant human being to deal with)
d/  Focused internet searching, as there is a LOT of information out there, some good, some less useful  . . . . . . . . . . (requires you to develop a BS filter and commit to thinking through and testing these bright ideas)

BUT, as I have freely admitted on many occasions:  Anybody can do what I do.

Now that I'm older, it is easier for me to recognize that I owe a debt to those individuals who pointed me in the right direction when I was younger and 'knew everything'.   Since I can't repay them, I pay it forward by trying to help others when I am able, and the others actually want the help.

After all, I'm not going to be around forever.   Too much of a burden on humanity . . . . . . .
 :cheers: :cheers: :cheers:
Fordboy

Well stated real logic more of us should be using more of the time.  The roots to most "secrets of speed".

                                                             :cheers:

                                                             Ed
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: lsrjunkie on January 07, 2014, 02:59:20 PM
Looking good Buddy!  :cheers:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Roseville Carl on January 11, 2014, 12:50:43 AM
Like a fkn piece of jewelry there Buddy :cheers:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on February 03, 2014, 03:54:16 PM
Ok, back to work on the car!

Next up, El Mirage with Mike Ferguson, the Road Runner president, driving!

Our main concern is sealing the inside of the car from the dust. Anyone have any good tips?
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Sumner on February 03, 2014, 05:25:26 PM
Ok, back to work on the car!

Next up, El Mirage with Mike Ferguson, the Road Runner president, driving!

Our main concern is sealing the inside of the car from the dust. Anyone have any good tips?


Put a big compressor on-board and build positive pressure inside the car  :evil:

Well maybe forget that idea,  hope to see you, Ruth and I will be there in May,

Sum
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Stan Back on February 03, 2014, 06:36:56 PM
Listen to Mike.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Roseville Carl on February 22, 2014, 10:33:03 PM
Go gett'um Buddy
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: WOODY@DDLLC on March 03, 2014, 03:40:46 PM
Thought I'd stick this here since there was a lively discussion on it! Just another point of reference:
http://origin.library.constantcontact.com/download/get/file/1103027404299-328/Copper+Head+Gasekts.pdf
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: zenndog on March 03, 2014, 03:50:41 PM
Wow Buddy, always amazing to see what you are doing. Hopefully Rich and I will trek down and see you at El Mirage. Be great to meet you and see the car in person.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: overdue on March 30, 2014, 05:39:45 PM
Buddy,

As others have pointed out, retorque of the head fasteners is critically important to head gasket reliability.   I just want to add my experience with alloy heads combined with cast iron blocks.    The difference in expansion rates between the two materials creates a "creep rate" at the gasket interface.   Best retorque procedure needs to start with a "cold" engine assembly.   I have found it to make a huge difference Vs. a "hot" retorque.    It is especially valid in engine assemblies where the head gasket clamp load may be marginal for the stresses applied.    This means you, Rover K-series engine lovers . . . . . . .    :roll:
 :cheers:
Fordboy
Makes me love the LSx all the more. Big boost with no retorque from the initial assembly when GM torqued it only once. But anyway, I love this car. I love that it'll never be a low cD, but still has value and looks good. It's a huge investment for very low speeds, but I'm still appreciative of it, thanks for sharing your build.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Stan Back on March 30, 2014, 06:29:30 PM
"very low speeds"

Oh, you sweet-talker, you.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: SPARKY on March 30, 2014, 11:37:17 PM
Stan these slow speeds are almost as fast as he is planing on running with his FAST STREET CAR  :roll:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: overdue on March 31, 2014, 05:17:00 PM
Stan these slow speeds are almost as fast as he is planing on running with his FAST STREET CAR  :roll:
LOL, really. I laughed. I meant no disrespect, but what HP are you thinking that beautiful engine could do, once final tweaking is perfected?
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Frankie7799 on March 31, 2014, 05:30:30 PM
Makes me love the LSx all the more. Big boost with no retorque from the initial assembly when GM torqued it only once. But anyway, I love this car. I love that it'll never be a low cD, but still has value and looks good. It's a huge investment for very low speeds, but I'm still appreciative of it, thanks for sharing your build.

Overdue,

For a guy who has never turned a wheel on the salt, thats a pretty ballsy thing to say wether you say your appreciative or not. I find it pretty damn impressive the challenge Buddy and his group have taken on to try to put this car into th 200 mph zone. To start with bascially a WWII tank engine and build one off parts as they have takes a lot of creativity, patience and talent. Its not nearly as difficult to run out an buy an LSX and coax 750-1000 hp out of it. Once you get a car on the salt and run at least as fast as Buddy has, then maybe you can run your mouth. But Im thinking folks would be more impressed with Buddys approach.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Peter Jack on March 31, 2014, 06:08:30 PM
Well said. I'll second that Frankie.  :cheers: :cheers: :cheers:

Pete
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: tauruck on March 31, 2014, 06:24:16 PM
Frankie for president. :cheers:

Buddy's car is a one off and way cool IMO.
That's what hot rodding is all about.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: overdue on March 31, 2014, 07:39:13 PM
Makes me love the LSx all the more. Big boost with no retorque from the initial assembly when GM torqued it only once. But anyway, I love this car. I love that it'll never be a low cD, but still has value and looks good. It's a huge investment for very low speeds, but I'm still appreciative of it, thanks for sharing your build.

Overdue,

For a guy who has never turned a wheel on the salt, thats a pretty ballsy thing to say wether you say your appreciative or not. I find it pretty Dodge impressive the challenge Buddy and his group have taken on to try to put this car into th 200 mph zone. To start with bascially a WWII tank engine and build one off parts as they have takes a lot of creativity, patience and talent. Its not nearly as difficult to run out an buy an LSX and coax 750-1000 hp out of it. Once you get a car on the salt and run at least as fast as Buddy has, then maybe you can run your mouth. But Im thinking folks would be more impressed with Buddys approach.

Of course it's ballsy, but hardly running my mouth, as I've driven big power before, only then I wasn't the owner, only the guy who chose the parts, machined them, and assembled them. My cred doesn't have to be salt to be real.
 Anyway, the ease of 800+ HP from a stock LSx with a turbo is the whole entire point to true enthusiasts of fast cars, all of whom grew up too poor to ever own more than 500 real HP on nitrous. Running 200 on an obsolete engine is not more or less impressive, just impressive in different ways. It takes unreal money, not cool but not arguable either.
 Look, the Sledgehammer did 254 on only 880 HP, and 1000 HP for the base Veyron means me having 1200 horses guarantees me capable of 254 on pavement. That fact alone proves I'm not running my mouth.
 You want to declare me a fool? Or an enemy? Same thing to me, but not what I want. I had old guys giving me flack when I first hit the drags, until I built a combo they said wouldn't work and ran both quicker and faster than them. I've suffered enough razzing. I won't take it from you. New to salt doesn't mean clueless.
 Now, back to the thread you jacked.
 A few years ago I nearly bought a 38 Chevrolet 4-door in central Tennessee. So I'd love to follow this thread if an arrogant keyboard warrior can stop spouting off and thereby proving he's too big for his britches. Come back when your IQ exceeds 160.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: tauruck on March 31, 2014, 07:55:51 PM
My experience on this forum is that one needs to cool and calm.

The knowledge base here couldn't be bought no matter how much you have.

When the older guys comment it's not because they're trying to put one down but because they are SALTY (They have salt experience).
There is no other racing like it.
It's not a sport for old men as you might be thinking.
It just takes that long to get to where you know your stuff.
120HP or 1200HP whether you own it, drove it or whatever the salt will humble giants.

Me?, I'm a humble hick from Africa that thinks all the guys on the forum are good dudes.
I don't think Frankie's IQ is in question.
Be cool. It works, believe me. :cheers:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Frankie7799 on March 31, 2014, 07:59:20 PM
I am by no means arrogant, im one of the most humble people you will meet. But when accused of being an arrogant keyboard warrior I do tend to feel the need to mention what credibility I have do have and earned.  Ive owned and driven two Super Comp cars at the drags for 10 years. Id still be driving my dragster if some douchebag hadnt stolen my entire operation 10 years ago when my two kids were under the age of 3 and I couldnt afford to replace the car. While the motor wasnt extravagant it was a SBC that made 650 hp and 500 tq at 7800  394 CID. No blower, no turbo, no NOS. Not bad for a guy who at the time made 10 bucks an hour and busted his ass to pay for what little I had. I was working with Sparky on finishing up his AA/GL up until Sept of last year. Ive crewed on a Top Alcohol dragster and 4 Top Alcohol Funny Cars. The TAFC im currently working on is 4th in the country and 3rd in the western region. At some point wether with or without the support of my wife Id like to build a Rear Engined Modified Roadster to run on the salt and El Mirage.

And Ill stick with my opinion that Buddys approach to run fast on the salt in a 38 Chevy Coupe is more impressive than calling Jegs or Summit and order a bunch of go fast parts for an LSX to go fast. Either way it takes money but in my eyes its more gratifying to do it the old school way. Just an old spirit in a 42 year old body.

Sorry for the hijack Buddy. Looking foward to seeing you again at Speedweek this year. That goes for you too Overdue. Ive got no personal issue with you just a difference in opinion.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Seldom Seen Slim on March 31, 2014, 08:42:47 PM
Ask Ron Main and his Flatfire about this:

" Running 200 on an obsolete engine is not more or less impressive, just impressive in different ways."

It was the first flathead car over 300.  Yes, it took some doing - and some money.  But it did get done.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Buickguy3 on March 31, 2014, 09:49:54 PM
  And the Salt Cat just keeps plugging away. 65 years plus antique engine with no uber expensive parts. Overdue, I'll give you 20 mph. The "Cat" is back.
   Doug  :cheers: :cheers: :cheers:

  Sorry, Buddy, Hope to see you in August.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Stainless1 on March 31, 2014, 10:31:27 PM

... but hardly running my mouth....
 Look, the Sledgehammer did 254 on only 880 HP, and 1000 HP for the base Veyron means me having 1200 horses guarantees me capable of 254 on pavement. That fact alone proves I'm not running my mouth.
  

O'due, Let's see, I think this is the spot where I say talk it cheap, takes money to buy whisky...  

Please report back when you have exceeded 254 in the mile on pavement or 250 anything on the salt.  It is not actually as easy as it seems on paper.  They don't put VHT on the mile tracks and definitely not on the salt.
My IQ is not 160... either.... but I also never brag before I do anything. I'm just one of those old guys that try to go fast on the salt.
Good luck with your quest... hope to see you on the salt in impound  :cheers:

Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: salt27 on March 31, 2014, 10:47:40 PM
O'due, Let's see, I think this is the spot where I say talk it cheap, takes money to buy whisky... 

Please report back when you have exceeded 254 in the mile on pavement or 250 anything on the salt.  It is not actually as easy as it seems on paper.  They don't put VHT on the mile tracks and definitely not on the salt.
My IQ is not 160... either.... but I also never brag before I do anything. I'm just one of those old guys that try to go fast on the salt.
Good luck with your quest... hope to see you on the salt in impound  :cheers:



Stainless,
  From what I have seen, you can and have approached that speed, backwards, upside down, sideways and strait forward (not necessarily in that order).   :-o

  Don
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: SPARKY on March 31, 2014, 11:15:27 PM
OD,, if we seem to come off as skeptics---we are-- we have seen a FEW Drag guys excel
 but we have seen many more tuck their tail and sneak away  never be seen or heard from again---
PLEASE remember---above 230 even bricks can fly-- what works on asphalt probably won't on the salt! For sure most of what works for 5 miles on the salt would not win at  the 1/4 mile----

DIMINISHING DRAG is the name of the game---no mater what causes it.

  IF you are a good PERSISTENT student maybe the day, will come when your 5 mile exit speed is within 1 MPH of your last mile speed---this is the holy grail---you have reached the power/drag wall -- to go faster you now have to reduce the drag or up the power!!!!!!!!!

YMMV  good luck, have fun 

REMEMBER the object is to figuratively fly-- not literally one makes YOUR day-- the later ruins it
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: lsrjunkie on April 01, 2014, 11:58:01 AM
OD, no disrespect, but the one thing I know for certain is that nothing is guaranteed on the salt. A lot of cars are capable of very high speeds on paper, but things change when the wheels hit the salt. Theoretically my little Henry J with a 60 year old six cylinder in it should do 185mph. If I hit 150mph the first year out, I'll be a very happy man.

What Buddy and his guys have done with an even older engine, stuffed into something as aerodynamic as my work boot, is nothing short of amazing. I am a big fan of the  LS series of engines and the power they can make. That being said, the guys that take something that was never supposed to turn more than 4000 rpm and only made 150hp when new, Rework it, build a ton of power, and set records, get a big thumbs up from me. Wether it be a V4, XO, or XXO. But I'm also a big fan of the vintage stuff. Just my 2 cents.

Sorry Buddy, I had to say my piece. Really excited to see what you guys do this year, and hopefully I can be there to see you guys get to that magic number!  :cheers:

Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: tauruck on April 01, 2014, 12:46:41 PM
Well said Joe.

I think Buddy's out of reach but OD was really out of line. Frankie, whom I've never met in person got attacked for voicing his opinion.
Wrong!!! The word Forum comes from????? Yup.  :-D

I'm going to say Frankie's IQ is higher than OD's LSX, LS whatever's terminal velocity.

I'm glad I'm not into drag racing. Maybe the nitro fumes affect you?. :evil:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: SPARKY on April 01, 2014, 02:59:10 PM
Maybe the nitro fumes affect you?.

They have me  :-D  But just recalling the sound of an early Chrysler with a heavy load brings goose bumps to me now just typing it--it has definitely is on my bucket list  "De NITRO C"
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Stainless1 on April 01, 2014, 10:45:09 PM
Sparky... you gonna nitro a No Nitro (H) record  :roll:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: SPARKY on April 02, 2014, 12:15:15 AM
C  DE Nitro  8-)
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Buickguy3 on April 02, 2014, 09:08:00 AM
  Sort of like this:  http://youtu.be/UeX9mPoC8j0

  Doug  :cheers: :cheers: :cheers:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Peter Jack on April 02, 2014, 09:31:52 AM
Luv it when they switch to nitro. My eyes water, my ears hurt and my nostrils burn just thinking about it.  :-o :-o :-o  :-D :-D :-D

Pete
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: redhotracing on April 02, 2014, 09:36:04 AM
I've never raced on the salt, but I sure as hell know how much harder 200mph on pavement is
than I expected. It took way more $$$ and time than I thought, and I give HUGE props to guys
who get it done on the salt.

As for Buddy, I'm in awe anytime you take something to the limit and then some. What's more
impressive at 200, an old Cad flathead or a nitro top fuel motor? "It's more fun to drive a slow
car fast than driving a fast car slow" - same idea here.

While I use an LSx and see the benefits from a starting hp standpoint, out of the box stuff like
the '38 impresses me more because it "shouldn't go that fast"... BTW, Buddy- I'm wearing my
Quest 200 shirt today, it's one of my favorites (next to my 2 Club shirt, of course)
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: SPARKY on April 02, 2014, 11:22:52 AM
To get that "mighty fast pig" over 2 is dodge sure going to take more skills & KNOWLEDGE than being a "parts assembler"  here's to:
 
Lovin MISS PIGGY
 
:cheers: :cheers: :cheers:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: lsrjunkie on April 02, 2014, 06:52:01 PM
I second that!  :cheers:  :-D  :cheers:  :-D  :cheers:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Roseville Carl on April 03, 2014, 12:45:06 AM
third that Sparky :cheers: :cheers: :cheers:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Tman on April 06, 2014, 03:37:43 PM
The thing that makes LSR so cool are things like Flatcad, that Jimmy six in a Firebird, a Fox body Mustang with a flathead, a Buick straight 8 in a Jag. If you can not see that then you are lost at sea with no help in sight! :-D :roll:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Roseville Carl on April 06, 2014, 09:41:36 PM
The thing that makes LSR so cool are things like Flatcad, that Jimmy six in a Firebird, a Fox body Mustang with a flathead, a Buick straight 8 in a Jag. If you can not see that then you are lost at sea with no help in sight! grin rolleyes

or you may not have both oars in the water..............
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Finallygotit on April 06, 2014, 11:01:51 PM
........or you may not have both oars in the water..............

That is a prerequisite.   :-D
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Tman on April 10, 2014, 12:59:01 PM
I say 650 HP!  :wink:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: BoredAndStroked on April 12, 2014, 06:13:04 PM
Hey Gang:

Just got back last night from NorCal and working with the FlatCad crew - getting our engine together, tuned and tested for El Mirage and Bonneville. It was a lot of work to put the complete engine together starting on Saturday morning, complete it by Monday night and get it to Chico and Vintage Hot Rod (John Beck's dyno) on Tuesday.

We flogged the crap out of it - made a LOT of pulls, overcame issues along the way and I believe we have a good tune and plan for both El Mirage and Bonneville. We're learning what this engine will produce and what abuse it will take - it has impressed all of us along the way. You might say that we're making it up as we go - there is no 'experience' or tribal knowledge to fall back on.

Here is our last solid dyno run:

1) 90% alcohol, 10% nitro, just over 19 lbs of boost. Still a little bit 'fat', but we like it that way. We made 653 HP - not too bad for the ole' girl!

It is a torque monster - over 700 ft lbs by about 4700 rpm. Should be able to pull tall gears.

Turn it up, scare your neighbors and make your dogs howl . . .

https://www.youtube.com/watch?v=c12HEMcP4ls

Thanks for your support!

B&S and the FlatCad Crew
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: ronnieroadster on April 12, 2014, 06:23:39 PM
I say 650 HP!  :wink:
  Tman was right on the money. All the work is paying off but I'm wondering if Dale ever sleeps?
 Congratulations to everyone involved.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Peter Jack on April 12, 2014, 06:39:05 PM
WELL done Guys!  :cheers: :cheers: :cheers:

Pete
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: BoredAndStroked on April 12, 2014, 06:40:59 PM
All the work is paying off but I'm wondering if Dale ever sleeps?

Hey Ronnie . . . good observation . . . not much these days!   I'm planning on wearing out, before I rust out!

Looking forward to seeing you at the Ohio Mile in early May.  :cheers:

B&S
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Jack Gifford on April 12, 2014, 11:55:51 PM
Oh my... do ya' s'pose the designers of that engine (in 1936 or so?) could ever imagine it surviving 700 ft.lb. of stress? :roll: Remind me again, how the bottom end differs from original: How many mains now? Anything like a mains girdle? Custom steel crank?
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: BoredAndStroked on April 13, 2014, 10:08:43 AM
Here is a link to the dyno screen - hard to see, but what the heck:

https://www.youtube.com/watch?v=LigLEXjme2s
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: SPARKY on April 13, 2014, 10:21:00 AM
Are you guys holding out on us  :?
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on April 13, 2014, 04:28:54 PM
I've been busy, and haven't been on the board for a while, and have a lot of catching up tp do!

FIrst, I want to thank everyone for all of your support! It means a LOT to us!

Overdue, I respect your opinions, and hope you follow our thread.

Jack, the engine has 3 mains, and a custom billet crank, and a massive crank girdle.

Sparky, I wish we were holding out, but we aren't-I think without major changes, we are at the max for this engine/cam combo!

We ran on alky, up to 19.4 lbs boost, then added 10% nitro, and 2 more lbs boost.We only gained 13 HP, but a lot of torque. See pics-first pic is the alky tune we will run. Second pic is our nitro run. We'll run the nitro if we end up a couple of MPH short-kind of our 'Hail Mary' tune!

I was disappointed, as I really thought we could and would top 700 HP. Still, the engine makes great torque, so we'll see what happens on the salt.

Lastly, to Buickguy 3: Doug, I'm glad you are bring the Jag back! Salt Cat is the team that inspires and drives me the most, so we look forward to pitting next to you in impound. This time, though, we may both be there on the same record!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Tman on April 13, 2014, 05:04:59 PM
I say 650 HP!  :wink:
  Tman was right on the money. All the work is paying off but I'm wondering if Dale ever sleeps?
 Congratulations to everyone involved.

 :cheers:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Milwaukee Midget on April 13, 2014, 05:26:10 PM
Buddy, don't be disappointed - those are excellent numbers.

707 ft. lbs?  No shame there.  Fat and flat, too.

I think you're just looking at a maximized, port restricted situation.  If the heads/intakes/exhaust were capable of flowing better, it would certainly rev freer, and you'd see more HP.  But the problem then would become the limits of the bottom end.

Maybe the engine's self preservation instincts are kicking in?  :-D

You're ahead - I'd bolt it in the car, and make sure you're carrying enough fuel to make it all the way down the track.

 :cheers:

Chris

Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Sumner on April 13, 2014, 06:03:26 PM
....I was disappointed, as I really thought we could and would top 700 HP. Still, the engine makes great torque, so we'll see what happens on the salt...

I sure wouldn't be disappointed  :-).  Those torque numbers might just get the job done.

I'd be interested in looking at your gearing.  If you want to share post it here or PM me.  Tire size, rear gear and transmission gear ratios.  I think you have a quickchange, what ratios do you have to use?

I'd look for the optimum gearing for 203-206 mph for what you are trying to accomplish,

Sum
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on April 13, 2014, 06:27:12 PM
Trent- it's easy to guess the number when Carl told you what it was! :wink:

Chris, Randy, Don and I installed the engine in the car before we left California.

Sumner, gearing may be where I'm screwing up. So, I'll give you the info, and maybe someone will point out what I need to do differently

The car has 29" tires, and the Rankin 4 speed gearing is 1.79, 1.45, 1.13, 1.00 (1st to 4th)

At El Mirage, we'll run on an 185 MPH min. I plan on 2.84 gears, and leaving 400 lbs ballast out of the rear

At Bonneville, I plan on 2.54 gears for our 200 mph run.

So, there is a lot of experience on this board running both venues-where should my gearing be?????
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Rex Schimmer on April 13, 2014, 07:40:52 PM
Buddy,
Mighty impressive numbers for a motor that is older than me!!! When you ran the 10% "pop" did you do any thing to the timing?

That big torque should be just what you need at El Mo, it should really help maximize your acceleration that is if you have enough traction, better keep some of that ballast handy. Where as at Bonneville it ain't the torque that makes you go fast it is the horsepower. Once you are pushing on the "aero wall" at close to max speed it is horse power that makes it happen. Torque just makes it easy to drive.

Rex
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Sumner on April 13, 2014, 09:27:42 PM
.... Where as at Bonneville it ain't the torque that makes you go fast it is the horsepower. Once you are pushing on the "aero wall" at close to max speed it is horse power that makes it happen. Torque just makes it easy to drive.

Rex

I might have to say normally that might be the case but not necessarily always.  I remember an interview Jack C. gave once.  I'll get the exact wording wrong but he said he wanted a motor that was kind of like a truck motor that could pull a big hill.  I think that if Buddy can get his gearing right the torque can get it done in his case.  He is pushing a brick up a big hill. 

For a NA motor I'd take the higher rpm HP,

Sum
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Sumner on April 13, 2014, 09:46:05 PM
...The car has 29" tires, and the Rankin 4 speed gearing is 1.79, 1.45, 1.13, 1.00 (1st to 4th)

At El Mirage, we'll run on an 185 MPH min. I plan on 2.84 gears, and leaving 400 lbs ballast out of the rear....

Is your redline going to be the 5500 that is on the dyno sheets?  If so unless I screwed up the 2.84 would be 167 at 5500.  6000 would be 182.

...The car has 29" tires, and the Rankin 4 speed gearing is 1.79, 1.45, 1.13, 1.00 (1st to 4th)

At Bonneville, I plan on 2.54 gears for our 200 mph run....

With the 2.54 gears 5500 is 187 and 6000 is 203.

With 2.47 gears 5500 is 192.  

With 2.41's 5500 is 197.  200 is 5590 and 205 is 5729.

With the 2.41's shifting at 5500 would you'd be about 109 in 1st dropping to  4458 on the shift so right about your torque peak.  Second at 5500 would be about 136 dropping to about 4300 in 3rd (still good).  And 5500 in 3rd would be about 174 dropping to about 4800 in 4th.  Nice gears in that transmission for what you are doing,

Sumner
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on April 13, 2014, 09:55:35 PM
Sum, Your math matches mine! I figure we'll be spinning 6087 RPM at 185 with no tire spin. We've spun over 6200 in Ohio, so we'll go with that at El Mirage. I think with the short run, we'll need to keep this thing running hard.

We may drop down from 2.54 on the salt, to 2.40. In the past, I've been over optimistic on how tall a gear the car would pull-I don't want to make that mistake again.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Sumner on April 13, 2014, 10:02:11 PM
Sum, Your math matches mine! I figure we'll be spinning 6087 RPM at 185 with no tire spin. We've spun over 6200 in Ohio, so we'll go with that at El Mirage. I think with the short run, we'll need to keep this thing running hard.

We may drop down from 2.54 on the salt, to 2.40. In the past, I've been over optimistic on how tall a gear the car would pull-I don't want to make that mistake again.

If you can run to 6000 then keep the 2.54's on the salt as 6000 is 203+.  My question is did you run it to 6000 on the dyno.  If so what was the HP there?  If not make sure you aren't dropping after the 5500.  I'd gear myself for the the peak HP.  Just shy of it by a 100 rpm or so.  Just me,

Sum
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: SPARKY on April 13, 2014, 10:06:42 PM
Buddy,, Go read "One Hot Chilli Pepper" Frt. Eng. Dragster  they have some mighty interesting stuff about pop and how much you have to run to beat 100% alky.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on April 13, 2014, 10:10:29 PM
We never ran past 5500 on the dyno, although we did run 6200 at the onio Mile.

I think I'll stay with the gearing for El Mirage, and see how it does.

For the salt, I think maybe we'll try and step out to the 4 mile, with either the 2.35's or 2.40's.

Sparky, I'll look it up and read it!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Sumner on April 14, 2014, 12:52:25 AM
...For the salt, I think maybe we'll try and step out to the 4 mile, with either the 2.35's or 2.40's...

I'd go with the 2.41's.  Just a hair over 5500 is your 200 with those.  You know you can pull the 5500 and what the HP is there.  You don't know what it is over 5500 even though you ran higher rpm's. 

Where was the cam suppose to work? 

Also what kind of 2.35 gears do you have?  Are we talking quick change ratios?  I was talking GM 2.41's,

Sum
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Jack Gifford on April 14, 2014, 12:58:36 AM
re: the dyno data. Besides Rex's question about timing; I'm surprised to see leaner A/F numbers with the 10% nitro. But I've never been there/done that- so have no feel for it. Was there any optimization of A/F with nitro?
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: lsrjunkie on April 14, 2014, 10:32:28 AM
Awesome Buddy! Good to hear things are going well, and good to see you back around these parts. That old Flat Cad is a beast! Here's to getting that magic number this year!  :cheers:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Frankie7799 on April 14, 2014, 12:34:15 PM
Very cool Buddy. Looking foward to seeing how everything pans out at EM and the salt
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Rex Schimmer on April 14, 2014, 02:48:48 PM
I have to agree with Jack regarding the A/F ratio, is the additional hp from the 10% pop or from being leaner?? Also are the oil temps correct? 74 deg F looks really low if you ask me. What oil were you running?

Looking at the dyno sheets it would certainly look like 5500 rpm is not your max hp rpm as each rpm increase saw a nice step up in hp, so going to 6000 might be what is needed to make the big 2!

Rex
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on April 14, 2014, 09:49:05 PM
Thanks Guys!

Yes, we have a oil heater on the car, but not on the dyno, so oil temp was not always optimal.

Nitro does lean things out. As we had limited time on the dyno, I was looking for 'safe, fat' tunes. When we get to the salt, we'll run the safe fat tune, and see how much it leans out at the 3 and 4 mile.

Now, I must confess- Sparky was right, and there is a little more to the story.

We tuned on the nitro a bit, and had a really, really strong run going- look at the numbers, before the head gasket between the 6 and 8 cyls started leaking!

This tune scares me, though, and it is truly my 'pocket card'- I'll only consider running it if we are a few MPH short of our goal.

As for how the car pulls to 6000, that is one of the reasons I have picked the gearing I have for El Mirage. We are running on a 185 minimum, and I really don't think we can get there. I really just want to shake down the car, see how it performs, and get the engine teched and sealed.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: jimmy six on April 14, 2014, 10:28:20 PM
After reading your chart I would be looking at a peak of 4800. I set my first record at Bonneville in 1975 with a carburated GMC on gas at 144 mph turning the engine 4700in a stock bodied 40 Chevrolet coupe....took me years to better it. I continue to gear for the max up to best HP. Good Luck.....JD
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: SPARKY on April 15, 2014, 12:25:40 AM
put the 2.54s in it  and go for it at both places  you are going to have LEAN on Miss Piggy and make her SQUEAL  do what it takes to get the gaskets to hold o-rings ect--- she can do it  just put the whip tow her and make her like it!!!!!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Finallygotit on April 15, 2014, 10:09:56 AM
Sparky??  :-o  Are you into kinky stuff?  :roll:  :cheers:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: WOODY@DDLLC on April 15, 2014, 11:11:53 AM
Buddy, looks like 4700 is the HP peak to me on this chart! Is that a normal torque drop for a blower motor with fugly ports? It seems to try and recover at 5200. Or is that where the head gasket leaked? I projected the torque curve just to see where the HP might end up!  :-o
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on April 15, 2014, 11:18:46 AM
Woody, 4700 is peak HP, because that is where the head gasket gave out. We were making great power on this run, and had it continued to 5500, like all of the other runs, it would have been impressive!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Roseville Carl on April 15, 2014, 11:49:28 AM
Just keep on sneaking up on er Buddy................you are kinda like a carpenter driving a 6 penny finish nail with a 10 lb sledgehammer :-D :-D :-D
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: SPARKY on April 15, 2014, 12:58:44 PM
Buddy when I talked to Spud about SBCs and Nitro---one of his intresting observations was that he learned the hard way not to mix block and head materials with Nitro---alum heads with alum block cast heads with cast block  other wise he could not keep head gaskets in them
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on April 17, 2014, 12:04:55 PM
Sparky, great talking to you the other day!

We've had issues with head gaskets, and have decided to try and correct the issue after El Mirage.

Currently, we have to run .085" head gaskets, and even with o-rings and receiver grooves, it's hard to get and keep a good seal. We'll be deepening the head chambers .050", so that we can run a .035" head gasket.

Hopefully this gives us the seal we need-if it does, we'll try some hotter tunes!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: fordboy628 on April 18, 2014, 09:23:36 AM
Buddy when I talked to Spud about SBCs and Nitro---one of his intresting observations was that he learned the hard way not to mix block and head materials with Nitro---alum heads with alum block cast heads with cast block  other wise he could not keep head gaskets in them

One of the problems with dissimilar materials is the difference in thermal expansion rate.    For instance, an alloy head with a copper head gasket piled on top of an iron block, creates a scenario where all three parts expand & contract at differing rates.     This "creep rate" differential can, if large enough, shear the gasket attachment to the head/block, regardless of the clamp load.    This can be a serious problem, hence the tendency for the "racer's adage":  iron heads with iron blocks, and aluminum heads with aluminum blocks.    It removes one differential of thermal expansion from the equation.

If you are pushing the copper gasket out, even with O-rings & receiver grooves, then either the combustion pressure is too high, OR, the clamp load is not enough, for your application.

Kinda like: "Which eye do you want poked out?"

I realize you are where you are, and may not be able to change much in short order.    Did you ever assess the clamp load via the carbon paper/pressure sensitive film method?    Doing so now may point you in the direction of a quick fix, or at least help you identify the where the real issue is.

Hope this helps.
 :cheers:
Fordboy
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on April 18, 2014, 10:16:40 AM
Thanks for the reply, Mark.

It's a combination of things-clamping force and a gasket to thick for the 0-rings to work properly, I think!

We are not pushing the copper gaskets out, rather the gases start escaping on the block side, at the o-ring receiver groove. We went from dead soft copper to annealed copper, and this seamed to help, but did not cure the problem at high boost and high cylinder poressurs-21lbs and nitro!

Currently, we have to run .085" head gaskets, and even with o-rings and receiver grooves, it's hard to get and keep a good seal. We'll be deepening the head chambers .050", so that we can run a .035" head gasket.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Sumner on April 18, 2014, 12:20:53 PM
Not sure where you are getting head gaskets from but SCE ( http://scegaskets.com/ (http://scegaskets.com/)  )told me they could make me a head gasket for the 4 I'm building for about $150 in design fees and about $150 for each gasket (actually one of those was $130, can't remember which).  I though that was reasonable.  In your case you could split up the design fee amongst all the other 'flat cad' owners  :evil:.

In my case they recommended their composite ICS Titan gaskets with the internal o-ring for up to about 20 lbs. of boost and over that recommended o-ringing the block and going with their Pro Copper that they have in different thicknesses.

Looks like Speed Demon is running them,

Sum
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Jack Gifford on April 19, 2014, 12:34:48 AM
What O-ring wire diameter? Block groove width and depth? Receiver groove width and depth?
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on April 19, 2014, 04:57:16 PM
What O-ring wire diameter? Block groove width and depth? Receiver groove width and depth?

Jack, I think Don or Dale will weigh in with that info later tonight.

In the mean time, Poppa Smurf has been busy, changing all of out 1" hoses and clamps over to AN fittings, cleaning up our plumbing even more!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on April 19, 2014, 04:59:07 PM
Poppa Smurf also did our discharge water manifolds!

......AND, the new steel came in for the upgraded chambers on the heads! :evil:

Don also made a new water pump discharge manifold.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Roseville Carl on April 20, 2014, 01:13:53 AM
sure looks better there than on the Dyno!!!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Milwaukee Midget on April 20, 2014, 12:44:03 PM
Been away from this one - Recutting the heads in steel?
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: fordboy628 on April 21, 2014, 08:13:28 AM
Thanks for the reply, Mark.

It's a combination of things-clamping force and a gasket to thick for the 0-rings to work properly, I think!

We are not pushing the copper gaskets out, rather the gases start escaping on the block side, at the o-ring receiver groove. We went from dead soft copper to annealed copper, and this seamed to help, but did not cure the problem at high boost and high cylinder poressurs-21lbs and nitro!

Currently, we have to run .085" head gaskets, and even with o-rings and receiver grooves, it's hard to get and keep a good seal. We'll be deepening the head chambers .050", so that we can run a .035" head gasket.

Just went back to page 66 to review photos of the long block with the head studs installed.

Where you "chuffed" the gasket is the area where the gap/span between studs appears to be the largest, AND, there is a water passage there as well, so there is going to be a lot of temperature differential in that area.

Anything you can do to increase the clamp load in this area, (without compromising clamp load elsewhere), is going to help.     I would investigate how altering the stud/nut torque (and/or diameter . . .) on those 2 bolts affects the localized clamp load.     Maybe you are back to the copper-coated thread idea, applied in certain areas.   

I don't have any other ideas for "band-aiding" to help right now, but maybe you can add a bolt/stud there later?    Even a smaller diameter bolt/stud would add clamp load.   (Ala Cosworth DFV or Chevy RO7 . . . )    Maybe a small s/s bolt installed in the water flow area of the "lower head" only?     Maybe move those 2 existing studs closer together some time down the road?     Anything along these lines would, of course, need to be performed at the same location for every cylinder . . . . . .

Sorry, I know these suggestions are expensive and time consuming.

Anybody out there in Land Speed Land, especially Flathead racers, got any good ideas for increasing the localized clamp load?

 :?    :|   :?    :|
Fordboy
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: RichFox on April 21, 2014, 10:45:03 AM
On my OHV Plymouth I plugged all the water holes (dry deck) and skeletonized the gasket  to concentrate clamping where I needed it. Don't know what you could cut out on the Cad though.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Pete1 on April 21, 2014, 03:24:00 PM
"Anybody out there in Land Speed Land, especially Flathead racers, got any good ideas for increasing the localized clamp load?"

I like all of 628's ideas but I like the .035 gasket the best as a temporary fix.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on April 22, 2014, 12:53:09 PM
What O-ring wire diameter? Block groove width and depth? Receiver groove width and depth?

Wire:  .041

Groove Width in Head:  .0395 (interference fit - very important of it won’t stick!)

Groove Depth in Head:  .026

Protrusion:  about .015 proud (wire in the head)

Receiver Groove Width:  .055 to .060 (centered with the head groove)

Receiver Groove Depth:  .012 to .015
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Jack Gifford on April 23, 2014, 12:32:29 AM
Thanks. With those odd-shaped rings/grooves, I assume you did the grooves with a CNC program? With locations referenced to head dowels?
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: fordboy628 on April 23, 2014, 07:43:32 AM
What O-ring wire diameter? Block groove width and depth? Receiver groove width and depth?

Wire:  .041

Groove Width in Head:  .0395 (interference fit - very important of it won’t stick!)

Groove Depth in Head:  .026

Protrusion:  about .015 proud (wire in the head)

Receiver Groove Width:  .055 to .060 (centered with the head groove)

Receiver Groove Depth:  .012 to .015


All these dimensions seem pretty normal for o-ring set-ups.    I suspect that the .085" (14 gauge? listed as .0863") thick copper conforms/deforms less than a 21 gauge sheet (.0320") or even an 18 gauge sheet (.0485")

 :cheers:
Fordboy
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: pops29 on April 24, 2014, 09:59:06 AM
Thanks. With those odd-shaped rings/grooves, I assume you did the grooves with a CNC program? With locations referenced to head dowels?


 Yes I did -- I did both the dowels and the groves on the same setup

(http://www.jalopyjournal.com/forum/picture.php?albumid=31768&pictureid=466160)
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Jack Gifford on May 06, 2014, 02:06:55 AM
It appears to me that the .080" gasket thickness defeated the intended function of the O-ring and receiver groove. Using your dimensions I sketched to scale a cross-section view. It looks as if the movement of the gasket into the receiver groove would be insignificant. The other scale-sketch is of the O-ring scheme in my blown alky hemi V8- where the receiver groove and the .024" gasket form a labyrinth-type seal.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: fordboy628 on May 07, 2014, 09:31:28 AM

It appears to me that the .080" gasket thickness defeated the intended function of the O-ring and receiver groove.
 

x2

 :cheers:
Fordboy
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Roseville Carl on May 13, 2014, 11:22:06 PM
Happy Birthday Buddy......... :cheers:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on May 14, 2014, 10:29:52 AM
Thanks Carl, and good luck at Eagle field!

We're headed to El Mirage, to run on a 185 MPH minimum in XXO/BFCC
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Elmo Rodge on May 14, 2014, 11:16:37 AM
When are you heading out, Buddy? Wayno
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on May 14, 2014, 11:58:38 AM
Wayno, I fly into Sacramento tomorrow-I left the car, trailer, and truck out there. We'll be on the lake by 9 Friday morning.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: saltwheels262 on May 14, 2014, 05:52:13 PM
good luck to you and all others going to em this weekend.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: tauruck on May 14, 2014, 09:47:47 PM
Have a blast Buddy.

We're always pulling for you from this side.

Be safe. :cheers:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on May 14, 2014, 11:03:03 PM
Thanks guys! I'll post up results of our escapades next Monday or so!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Roseville Carl on May 15, 2014, 03:12:05 PM
Kool Buddy go gettum........ I will be thinking of you guys while running at Eagle, maybe next time you run down there I can make it!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: kustombrad on May 18, 2014, 01:05:32 PM
Saw the beast yesterday and I must say, what a cool car! Hearing the weight of the motor cracked me up (freakin' heavy!) and the difference from Ford to Caddy flathead was pretty cool! While I was standing there talking to (I believe Bored and Stroked) about pushing out head gaskets and other weird issues, I asked what size head studs he was running. I know guys who have run fuel in BBC motors and stepped up from the 1/2" studs for more clamping force, so I can't see how this motor can hold anything from moving around with 7/16" studs! The car is awesome and I love the concept, but if there's room I'd stuff 1/2" studs in there at the very LEAST! Just my opinion guys... see you on the salt!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on May 27, 2014, 03:36:00 PM
Saw the beast yesterday and I must say, what a cool car! Hearing the weight of the motor cracked me up (freakin' heavy!) and the difference from Ford to Caddy flathead was pretty cool! While I was standing there talking to (I believe Bored and Stroked) about pushing out head gaskets and other weird issues, I asked what size head studs he was running. I know guys who have run fuel in BBC motors and stepped up from the 1/2" studs for more clamping force, so I can't see how this motor can hold anything from moving around with 7/16" studs! The car is awesome and I love the concept, but if there's room I'd stuff 1/2" studs in there at the very LEAST! Just my opinion guys... see you on the salt!

I think you are probably right, but it is too late for us to change this year-it is on the winter 'to do' list though.

For Bonneville, we'll have deeper head chambers, so we'll run a .035" thick head gasket, instead of the current .085" gasket-hopefully the O-rings will work better with the thinner gaskets.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on June 04, 2014, 11:35:31 PM
We've been busy modifying the exhaust(http://img.tapatalk.com/d/14/06/05/y3umyna4.jpg)(http://img.tapatalk.com/d/14/06/05/ety7unyv.jpg)(http://img.tapatalk.com/d/14/06/05/agety4ug.jpg)
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on June 04, 2014, 11:37:42 PM
Tonight we added blisters. We still have some work to do, but it's coming along.(http://img.tapatalk.com/d/14/06/05/ha4eza3y.jpg)(http://img.tapatalk.com/d/14/06/05/6uzetebe.jpg)(http://img.tapatalk.com/d/14/06/05/ahu5a5u3.jpg)
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: tauruck on June 04, 2014, 11:46:00 PM
One of my favourite cars!!!

Looks good Buddy. :cheers: :cheers:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Roseville Carl on June 05, 2014, 11:59:09 AM
The never ending quest continues looks great Buddy!! betcha can't wait to get her on the salt!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: lsrjunkie on June 05, 2014, 01:10:52 PM
Right on Buddy! Looks great!  :cheers:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on June 05, 2014, 04:09:05 PM
Thanks guys !
Picked up a rebuilt Caddy flathead today......

(http://img.tapatalk.com/d/14/06/06/ehe8y9u2.jpg)(http://img.tapatalk.com/d/14/06/06/paqy2esa.jpg)
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Stan Back on June 05, 2014, 04:31:43 PM
You still won't be able to run Production.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on June 05, 2014, 04:55:56 PM
You sure? LOL!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Roseville Carl on June 19, 2014, 10:23:58 AM
What's going on in FlatCad land lately???
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: WZ JUNK on June 19, 2014, 08:03:20 PM
I am working on the front fenders and then I need to make a couple of repairs on the hood side panels.  Randy is busy with some other projects.

John
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: tauruck on June 19, 2014, 08:04:50 PM
Good to hear. :cheers:

Thanks John.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on June 19, 2014, 08:48:10 PM
In addition to what information John just provided, Don deepened the chambers today, and now will polish them. This will allow us to run .035" gaskets, which I hope allows the o-rings  to work better.

I'm at work, but will install the heads when I get home .



(http://img.tapatalk.com/d/14/06/20/zy7y5anu.jpg)
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on June 20, 2014, 10:52:26 AM
Don is deepening the head chambers, so that we can run a thinner head gasket, and hopefully take full benefit if the o-ring/receiver groove setup. He still needs to polish the chambers.

 He has the first head done, and deepened it .050", so we can use .035" copper gaskets.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Roseville Carl on July 04, 2014, 10:41:04 AM
any updates Buddy???
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: WZ JUNK on July 04, 2014, 10:58:37 AM
I have made the first part of the repairs to the front fenders, hood side panels, and hood.  I filled the holes in the front fenders where they were cut out to allow for tire clearance.  The tires touched the fenders, when Buddy applied the brakes, after the 189 mph pass on the salt.   Randy will raise the car up so that now the tires will clear, and the holes are no longer needed.  This will get the car back to the correct angle or stance that I had planned when I set up the rear spoiler and front end.   The hood side panels had been modified a couple of times to allow for different versions of the headers.  I filled in these areas and Randy will make new cutouts for the newest headers that he has made.  I repaired two small areas on each side of the hood that were cut out for header clearance.  I will finish all of this by doing the other half of the job, which is fiber glassing on the opposite side of the repairs.  I make the repairs by beveling and fiber glassing from both sides.

I am also making a plug to go into the engine air intake on the hood, to close off that hole when the car is in transit or in storage.

My stuff will be done soon, and then parts will go to another shop for bodywork and paint.

John 
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: tauruck on July 05, 2014, 12:53:43 AM
That is some serious machining. :cheers:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: WZ JUNK on July 14, 2014, 07:56:26 AM
I finished modifying and repairing the fiberglass parts yesterday.  Randy will send them off for finish body work and painting.

John

Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: WZ JUNK on July 14, 2014, 03:08:10 PM
I did make a plug for a big hole in the hood and I tried to do it so that "anyone" would remember to remove the plug before the engine was fired.

John
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Roseville Carl on July 14, 2014, 04:45:24 PM
I don't know John but bet I could leave it on.................... :-D :-D
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Stan Back on July 14, 2014, 04:46:53 PM
We made it to the 1 with the injector cover on.  1st and 2nd were okay, 3rd just didn't want to pull.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on July 14, 2014, 08:08:02 PM
John, getting the fiberglass work done thrills the hell out of me!

The nose plug is great-far better than the duct tape we were using!

Thanks again! :cheers:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: SPARKY on July 14, 2014, 08:51:54 PM
Duct tape  :-o  Buddy you mean you guys are not using Gorilla Tape  :-D
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Milwaukee Midget on July 14, 2014, 09:07:35 PM
Duct tape  :-o  Buddy you mean you guys are not using Gorilla Tape  :-D

Sparky - think about this a minute.

What is a hood scoop?  It's a duct.

Buddy's use of that particular product is probably the first bonafide, documentable application of the product.

Everything else is off-label.  :cheers:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on August 03, 2014, 09:57:19 PM
Quick update- I'm at Randy's installing the newly worked heads, but the old block is tired-  so far we've has to install 3 helicoil a on the passenger side.

The car is almost ready, and should tech for 200+ with the Additional fire bottle and roof rails(http://img.tapatalk.com/d/14/08/04/qeqetape.jpg)
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: desotoman on August 03, 2014, 10:03:59 PM
Buddy,

Hopefully they will be stronger. See you next week. I got the money. LOL.

Tom G.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on August 04, 2014, 08:27:36 AM
Figured you did! Lol! See you there!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Roseville Carl on August 04, 2014, 11:52:51 AM
Go gettum Buddy its 200+ this year!!!!!.............. wish I could be there, good luck Flatcad Team...............
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on August 04, 2014, 04:28:15 PM
Thanks Carl!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on August 05, 2014, 09:23:48 PM
Loaded up and on our way!(http://img.tapatalk.com/d/14/08/06/ajebe6yq.jpg)
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: tauruck on August 06, 2014, 01:10:35 AM
That must be the best pic other than one right on the salt.

Special good luck wishes to you an the crew.

Thanks for the package Buddy. God Bless, you're a special friend. :cheers:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on August 06, 2014, 02:49:44 AM
Thanks Mike!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on August 06, 2014, 03:17:03 PM
Well, things were going good until we got between Rock Springs and Evanston, WY.  We broke a trailer spring and tore all of the wiring up for the trailer brakes.

Sure glad we left early!(http://img.tapatalk.com/d/14/08/07/y2a3a5u6.jpg)
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: hotrod on August 06, 2014, 04:19:27 PM
Ouch!

I should be passing through Rock Springs early in the morning (leaving Denver area near 10:00 pm so around 3:00 in the morning more or less)

If you need an extra set of hands send me a text message on the cell phone and I will see if we can meet up if I can help.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Speed Limit 1000 on August 07, 2014, 01:24:40 AM
Did you set WY on fire? When we had problems the first thing the fire department asked was "is your race car OK?" They said it was no problem just another slow WY day. :cheers:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on August 07, 2014, 02:13:41 AM
Maybe I should have started a fire! Midnight here I'm SLC, and we are still working on the trailer, it seems we have far bigger sues than we thought.

And if course it's raining.......
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: tauruck on August 07, 2014, 07:10:12 AM
You'll come right I'm sure.
122 miles to go.
Have faith. Holding thumbs for you guys.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on August 07, 2014, 10:43:09 PM
About to fire up the car- waiting to see if they are going to cancel the meet it not- supposed to know in 30 minutes.(http://img.tapatalk.com/d/14/08/08/ajyberyz.jpg)
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: hotrod on August 07, 2014, 10:56:41 PM
Glad to see you got there after all the drama, they just announced probably start racing Monday.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: tauruck on August 08, 2014, 03:18:26 AM
Flatcad made it. :cheers:

Great news Buddy.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: wheelrdealer on August 08, 2014, 10:18:00 AM
Buddy:

Spare trailer spring, U--bolts and shackles... never thought of that.

Glad you made it. Good racing.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on August 10, 2014, 07:10:58 PM
I'm back home from Speedweek . While the cancellation was a bummer, it was great catching up with everyone.

We got the car teched, and sorted some new issues that popped up, in the Rainbow parking pot.

Next up, WOS! I hope to see everyone there!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on August 11, 2014, 04:19:57 PM
Just fired the old girl after making some changes for next months WOS!https://vimeo.com/103171626 (https://vimeo.com/103171626)
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: gkabbt on August 11, 2014, 04:38:01 PM
Cool video Buddy. Looking forward to seeing this and meeting you at WoS next month.

Gregg
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on August 11, 2014, 06:44:49 PM
Gregg, it will be my pleasure!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Freud on August 11, 2014, 06:52:26 PM
Buddy.......I missed you. Too many hotel parking lots substituting for the pits.

I'll try WOS.

I've already been to Wendover 4 times this year. May as well shoot for 6 or 7.

FREUD
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on August 11, 2014, 06:56:46 PM
Freud, I sure hope to catch you there and chat!

I've had the car at El Mirage, and at the salt, and have yet to make a pass! Lol!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Stan Back on August 11, 2014, 07:17:07 PM
I thought when I talked to you on Friday, you'd just come from a low-level pass in Wells.

Only your hairdresser knows.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on August 11, 2014, 07:29:56 PM
Haha! Well, the rule book said I need 'roof rails' to tech for 200, so I added them and painted them! lol!t(http://img.tapatalk.com/d/14/08/12/dusuveme.jpg)
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Freud on August 11, 2014, 07:42:51 PM
Your MaMa can accept tattoos but not that hair cut...........

Better wait for several months before You see her.

You just need to hope her birthday is more than several months away.

FREUD
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on August 11, 2014, 07:48:07 PM
Haha! You forget that she's put up with me fit 51 years!

.....,,.and I shaved it all off before I took her to lunch yesterday!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Freud on August 11, 2014, 07:58:28 PM
Mom to son, "Why did you cut all your hair off?"

Son to Mom, "Because you wouldn't let me have a mohawk."

Inscription on his tomb stone...."Mom said, PLUCK your HAIR."

FREUD
Title: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on August 11, 2014, 08:46:13 PM
Well, or at least something that rymes with pluck, huh? ;-)
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: BoredAndStroked on August 17, 2014, 11:57:33 AM
Well, or at least something that rymes with pluck, huh? ;-)

You are definitely one ugly 'PLUCKER' . . . or something that rhymes with it . . .  :cheers:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Milwaukee Midget on August 17, 2014, 12:43:23 PM
When we arrived at the Rainbow, I was out sorting gear to take into the room and putting it on the baggage cart.  My dad arrived, and he and Kate were having trouble pushing the overladen cart through the doors at the hotel.

My dad mentioned that some very nice gentleman with a weird red Mohawk graciously held the door for them, and offered to help.

Didn't take long for me to put two and two together on that one.

Buddy, I've no doubt your mother is very proud of you.

It's not what's on top of your head - it's what's below the surface.

Thanks, Buddy!  :cheers:

Chris
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Freud on August 17, 2014, 08:58:57 PM
weird red mohawk was ogling Kate.

FREUD
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on August 17, 2014, 09:10:00 PM
Wow Chris, I had no idea they were your parents- glad I could help if only a little bit!

Freud, you had a weird red Mohawk too? Lol!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: fredvance on August 17, 2014, 09:31:13 PM
40 years ago!! :evil:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on August 17, 2014, 09:58:06 PM
Lol!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Milwaukee Midget on August 17, 2014, 10:07:36 PM
weird red mohawk was ogling Kate.

FREUD

Buddy had his clothes on - all's cool.  :roll:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Roseville Carl on August 17, 2014, 11:57:39 PM
doln't  know what  to say Buddy.............but that is one butt ugly haircut........... :-D :-D
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Stainless1 on August 18, 2014, 12:04:43 AM
Don't pay any attention to folks that don't like the cut... I have seen the pic of Freud with a Mohawk... his was about 5 or 6 inches tall... he was about your age.... following in his footsteps... you could do worse  :-D
 :cheers: see you at WoS
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: tauruck on August 18, 2014, 03:39:55 AM
doln't  know what  to say Buddy.............but that is one butt ugly haircut........... :-D :-D

At least he's got hair to cut. :-D
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Freud on August 18, 2014, 11:12:07 AM
and it's too thin to "pluck."

FREUD
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: tauruck on August 18, 2014, 11:13:03 AM
Plucking good answer. :-D
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on August 18, 2014, 11:19:29 AM
Pluck you all! LOL!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Freud on August 18, 2014, 01:43:22 PM
Pluck You too You Chicken Pluckers

FerD
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Seldom Seen Slim on August 18, 2014, 02:49:14 PM
I'm dang near ready to pluck this word into the curse filter's clutches.  Let's see -- what kind of car would be the obvious outcome of a plucking?
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on August 18, 2014, 02:51:46 PM
A Plucking FlatCad? ;-)
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Buickguy3 on August 18, 2014, 03:30:21 PM
Thunderbird?
   :cheers: :cheers: :cheers:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Roseville Carl on August 19, 2014, 01:05:53 PM
think we have a winner!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: saltracer1 on August 23, 2014, 06:35:01 PM
Buddy, did you guys run at El Mo? and didn't you have some cometic head gaskets at some point? Phil
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on October 24, 2014, 02:29:10 PM
Hello Everyone!

I've received a lot of emails and calls asking where the Flatcad team disappeared too- well, we're still here!

After 2 rain outs, we took a little time off, and are now ready to begin the winter thrash, so we can attemt 200 MPH next year!

Updates will start soon!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: RichFox on October 24, 2014, 04:59:11 PM
i wondered what happened to you. Good to see you back.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: SPARKY on October 24, 2014, 07:48:27 PM
 :cheers:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: jdincau on October 24, 2014, 08:36:59 PM
i wondered what happened to you. Good to see you back.
Good to see you back, did the re wire go OK?
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: RichFox on October 24, 2014, 08:46:30 PM
Seems to have gone well. I feel the difference. Still have a few things to get taken care of. But i am glad that part is done.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Buickguy3 on October 24, 2014, 09:32:03 PM
Rich, There should be a "Like" button on here. Glad to see you back. [Now get to work  :-D]
    Doug  :cheers: :cheers: :cheers:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: BoredAndStroked on November 25, 2014, 11:43:16 AM
Hello Everyone!

I've received a lot of emails and calls asking where the Flatcad team disappeared too- well, we're still here!

After 2 rain outs, we took a little time off, and are now ready to begin the winter thrash, so we can attemt 200 MPH next year!

Updates will start soon!

You forgot the 'Wind Out' as well!   Yes - we're back and getting tooled up to get some more stuff done.  The good news about NOT running last year . . .  we didn't break anything and the car has been ready for a year.  Now we have some time to screw with it a bit and see if we can resolve some issues that we've seen . . .
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: POPS on November 30, 2014, 01:46:37 PM
BUD,
BOB BROOKS PASSED AWAY AND WE WANT TO SELL ALL HIS FLAT CAD PARTS. WE ALSO HAVE THE LAKESTER FOR SALE. LET ME KNOW IF YOU MIGHT BE INTERESTED.
DON JACKSON
djje2@cox.net
714-269-9645
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on November 30, 2014, 02:12:36 PM
Don, that's heartbreaking news! My deepest condolances!

I have sent you an email and phone message in regards to the car and operas.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: fordboy628 on January 22, 2015, 08:20:43 AM
Hello Everyone!

I've received a lot of emails and calls asking where the Flatcad team disappeared too- well, we're still here!

After 2 rain outs, we took a little time off, and are now ready to begin the winter thrash, so we can attemt 200 MPH next year!

Updates will start soon!

Buddy,

?     ?     ?

Have you guys been eaten by zombies?

 :cheers:
F/B
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: WOODY@DDLLC on January 22, 2015, 10:01:05 AM
FB, you know the Zombies have better taste than that!  :-D Maybe it was the hogs that got 'em with all the talk about flying pigs!  :-o


Earth to FlatCad come in FlatCad!  :-D
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: pops29 on February 09, 2015, 06:57:38 PM
Hi All  

  We are all still alive and well,, Dale has Retired from his job and now is enjoying the life of old guys but is still stuck with the team.    Buddy has been working his Acura off after the oil price dump to stay employed, So far he is working but now overseeing multiple drilling rigs not just one, so his time is limited. As for me I am waiting for Buddy to find time to bring the car to California to my shop so we can get a few going before BV.

Don    
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: tauruck on February 09, 2015, 08:27:02 PM
Thanks for the update Pops. :cheers:

I hope things improve for Buddy.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: fordboy628 on February 10, 2015, 01:35:19 AM
Sorry to hear about the situation.

Hope things improve for everybody.

Thanks for the update.

F/B
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: lsrjunkie on February 10, 2015, 10:13:08 AM
Thanks for the news Don. Hope everything shakes out with you guys. Here's to hoping this year is the one for the elusive 200mph run!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Tman on February 21, 2015, 12:06:57 PM
Thanks for the update Pops! I have been talking/typing with Dale. Sounds like he may become a neighbor in the next year or two!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: SPARKY on July 28, 2015, 02:21:42 AM
does anyone know how to get in touch with Buddy?  He has changed phones
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: WZ JUNK on July 28, 2015, 07:16:43 AM
does anyone know how to get in touch with Buddy?  He has changed phones

I have his new phone number at the shop.  I will try to contact you later.

John
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: SPARKY on July 28, 2015, 10:51:26 AM
He's still alive and well--My question to him--How's Texas?---"Hot and miserable in long sleeves---but it is a JOB!!"  After this 2 week shift--he is heading to CA to get the car ready for WOS if there is any such animal  Looking forward to seeing Ms Flattie run again!!  Just because we call her Ms Flattie doesn't mean she is flat chested.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: lsrjunkie on July 28, 2015, 02:33:42 PM
Not by a long shot Sparky! That gal has some serious curves!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: pops29 on August 25, 2015, 05:10:11 PM
Hello All.  Well another year of no racing  :-(  so the team has made a decision to make some minor and major changes to the car this coming year..  along with the changes to the car we also added A new Team member we feel is a great addition !!!  My Daughter Melissa is now the Social media Director for the team   She has started the Flatcad Facebook page and will keep it updated as we move forward with the upgrades to the car and work with our current sponsors, set up events, and work with potential sponsors.  as for the changes we will be making to the car please check out our facebook page    https://www.facebook.com/flatcadraceteam   here is a hint of the upcoming changes ( we will tank some ideas as we fly along switching gears and pumping hard  towards our goals )
see ya on facebook....  
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: tauruck on August 26, 2015, 02:16:39 AM
I wore my Flat Cad shirt Sunday and got lots of questions from strangers. :-D

Thanks Buddy. I only wear it on special occasions.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: redhotracing on September 01, 2015, 07:15:09 AM
Buddy- I wore my Quest 200 shirt on Saturday night... to dinner with my wife  :cheers:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Stainless1 on September 01, 2015, 09:25:06 AM
I never wear mine to BBQ... can't chance it... but it always draws comment  :-D

Although every now and then Linda requests I wear one of my 2 shirts that don't have "writing on them"  :-o  :-o  :-o
She thinks it's like  :dhorse:  :-D
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on January 07, 2016, 05:23:00 PM
Well, we've been pretty quiet for a while now, but have been planning some changes, and gathering parts

I'll post some updates and pics of work we are doing now and through the weekend, tonight when I get on a real computer! :-)
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: lsrjunkie on January 08, 2016, 12:23:25 PM
Bitchin! Cant wait to hear the news.  :cheers:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: tauruck on January 08, 2016, 06:03:14 PM
I agree with Joe.
Great to hear from you Buddy. :cheers: :cheers:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: pops29 on January 27, 2016, 07:25:49 PM

 Well we finally got our butts moving on the car a few weeks ago. Buddy and Randy flew out for the install....  We changed out the Tranny in the car to a 2 speed power glide.  I had to re design the adapter plates from the block to the tranny and re-do all the mounting bolts and locating pins for the bellhousing.
(https://www.facebook.com/flatcadraceteam/photos/pcb.960206200724129/960205894057493/?type=3&theater)
(https://scontent-sjc2-1.xx.fbcdn.net/hphotos-xtl1/v/t1.0-9/487909_960205874057495_472957534986843500_n.jpg?oh=ea46af00db26a1c68a5545aa1a3d1876&oe=57373899)
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: pops29 on January 27, 2016, 07:27:00 PM
https://scontent-sjc2-1.xx.fbcdn.net/hphotos-xtp1/v/t1.0-9/12573866_960205894057493_1850161744623905367_n.jpg?oh=637ec18ba7bba8d74c00d3329a33c623&oe=573F4E30

(https://scontent-sjc2-1.xx.fbcdn.net/hphotos-xal1/v/t1.0-9/12400707_960206004057482_16398420458582672_n.jpg?oh=8ca144973fe4c15a7e9a5871322994ef&oe=573315A7)
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: pops29 on January 27, 2016, 07:27:46 PM
(https://scontent-sjc2-1.xx.fbcdn.net/hphotos-xtp1/v/t1.0-9/12573866_960205894057493_1850161744623905367_n.jpg?oh=637ec18ba7bba8d74c00d3329a33c623&oe=573F4E30)
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: pops29 on January 27, 2016, 07:29:42 PM

 (https://scontent-sjc2-1.xx.fbcdn.net/hphotos-xlp1/v/t1.0-9/12509170_960206374057445_6422526504111883317_n.jpg?oh=a47f6857f16cb46cb6f227003433dae4&oe=5727E739)
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: pops29 on January 27, 2016, 07:30:44 PM
(https://scontent-sjc2-1.xx.fbcdn.net/hphotos-xta1/v/t1.0-9/12495194_960207670723982_4429783416077735967_n.jpg?oh=7aa732077f7e0b5c39c51f3a3c25fc04&oe=57434E22)
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: pops29 on January 27, 2016, 07:33:25 PM
https://www.facebook.com/flatcadraceteam/videos/960208687390547/ (https://www.facebook.com/flatcadraceteam/videos/960208687390547/)

Here is a short video of the test run after the install 
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Polyhead on January 27, 2016, 07:41:44 PM

 (https://scontent-sjc2-1.xx.fbcdn.net/hphotos-xlp1/v/t1.0-9/12509170_960206374057445_6422526504111883317_n.jpg?oh=a47f6857f16cb46cb6f227003433dae4&oe=5727E739)

What a pretty endmill.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: tauruck on January 28, 2016, 12:01:15 AM
That's neat work Pops.
Great to see you guys are back on it.
BTW, tell Buddy I wear my Flatcad  T shirt a lot. :cheers:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Jack Gifford on January 28, 2016, 12:49:49 AM
Who makes that bellhousing (w/SFI sticker)? Does it have the same containment properties as a 1/4" steel hydro-formed SFI housing?
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: SPARKY on January 28, 2016, 08:39:58 AM
I think that at least 2 companies make them mine is not a Deadenbauer but my CRS is present and accounted for this AM. 
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: fredvance on January 28, 2016, 10:22:38 AM
Have a couple more cups of coffee and it will come to you! :roll:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: SPARKY on March 01, 2018, 10:49:24 PM
What is going on with Buddy these days?? Anyone know where "he stays" these days?
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: SPARKY on March 03, 2018, 12:38:34 AM
How about a current Number
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: WOODY@DDLLC on March 03, 2018, 11:41:21 AM
PM sent!
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: SPARKY on March 06, 2018, 09:42:25 AM
does anyone have any idea what is going on with Buddy?
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: saltracer1 on November 23, 2018, 10:59:18 AM
heard somewhere they may be gearing up for a return in 2020
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: tauruck on November 23, 2018, 11:13:24 AM
I think of him daily.
See the flag he sent me and wear the flat Cad T shirt regularly.
God Bless you Buddy wherever you are. :cheers: :cheers: :cheers:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: 38flattie on December 17, 2022, 06:02:12 PM
Hey folks! It?s been a while- sometimes life gets in the way, but we?re back!

I?ll let Dale post the details, but here?s a teaser?..
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: WOODY@DDLLC on December 17, 2022, 09:09:12 PM
Do we know youse two?  :-P





'Bout time ya showed up!  :cheers:
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: WZ JUNK on December 18, 2022, 07:48:22 AM
This is great news.  I want to know every detail.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Stainless1 on December 19, 2022, 03:31:28 PM
Buddy, good to hear you are still on the planet... let me know if there is anything I can do to help.  I have a new lakester Bockscar 2.0 built... build diary on here and am working on a streamliner Bockscar 3.0 diary....
Yes I still have the dyno...  :friday
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Rex Schimmer on December 20, 2022, 03:46:21 PM
Great to see your back!!! We all missed the flying pig.
Looking at you block pics it always amazed me that there is almost nothing connecting the two sides of the block! How about a flat crank and you make a twin four out of it?

Again, great to see  you posting.

Rex
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: tauruck on December 21, 2022, 07:39:34 AM
Buddy, Still got the flag you sent me. Think of you daily. Glad to see you're back.🙏👊
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Tman on December 27, 2022, 04:57:31 PM
Welcome back. Dale is living out here at least part of the time now.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: Hooley on January 02, 2023, 08:08:32 PM
Hi Buddy, lets get this land speed racing going again. What do you say?
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: pops29 on January 13, 2024, 03:17:41 PM
Hello All.  Its been a longer layover than we were expecting but WE ARE BACK !!!  Dale has been working on the motor and I have been working the car over with some much needed changes.
 I stripped the car down completely to the bare bones and blasted the frame and repaired any rust issues and areas needed of attention, also doing some body mods to make it easer to work on the motor.
(http://)
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: pops29 on January 13, 2024, 03:30:30 PM
(http://)
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: pops29 on January 13, 2024, 03:31:15 PM
(http://)
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: pops29 on January 13, 2024, 03:41:33 PM
I stripped down and blasted the under carriage, rust treated , premiered and painted. I sent the rearend off to John Beck for rebuilt and I completely rebuilt the frontend. Also removed to old front core support and fabricated a new one.
(http://[img][img])[/img][/img]
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: pops29 on January 13, 2024, 03:51:36 PM
 I am proud to introduce our newest member to the team, some of you may already know him Alex Gambino of Gambino Kustoms. He is one of the best customizers around and he is now on our team. He is repairing all the fiberglass that was damaged in the fire and doing the body mods and paint on the flatcad. Here we are removing the firewall sides for access to the motor.
(http://[img][img])[/img][/img]
 
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: pops29 on January 13, 2024, 03:52:29 PM
(http://[img][img][img])[/img][/img][/img]
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: pops29 on January 13, 2024, 03:55:57 PM
Here is some pics from Dale of the motor. I will let him add to this
(http://[img][img][img][img])[/img][/img][/img][/img]
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: pops29 on January 13, 2024, 03:56:22 PM
[/img]
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: WZ JUNK on January 13, 2024, 05:19:48 PM
I am very interested in your progress.  I was involved in the original build and I would like to see it run again.
Title: Re: XXO/BVGC '38 Chevy Coupe Build
Post by: WOODY@DDLLC on January 13, 2024, 05:32:27 PM
 :cheers: :clap :cheers: :clap :cheers: :clap :cheers: