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Author Topic: XXO/BVGC '38 Chevy Coupe Build  (Read 1029864 times)

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Offline WZ JUNK

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Re: XXO/BVGC '38 Chevy Coupe Build
« Reply #345 on: April 18, 2011, 06:31:57 AM »
Quote from: 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

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
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Offline jimmy six

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Re: XXO/BVGC '38 Chevy Coupe Build
« Reply #346 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
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Offline 38flattie

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Re: XXO/BVGC '38 Chevy Coupe Build
« Reply #347 on: April 21, 2011, 02:29:40 PM »
Quote from: 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

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'!
« Last Edit: April 21, 2011, 03:00:23 PM by 38flattie »
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With sufficient thrust, pigs fly just fine. However, this is not necessarily a good idea. It is hard to be sure where they are going to land, and it could be dangerous sitting under them as they fly overhead. -- RFC 1925

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Offline 38flattie

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Re: XXO/BVGC '38 Chevy Coupe Build
« Reply #348 on: April 21, 2011, 07:30:13 PM »
Here is the test piece Kevin whittled today- water passages in head.
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With sufficient thrust, pigs fly just fine. However, this is not necessarily a good idea. It is hard to be sure where they are going to land, and it could be dangerous sitting under them as they fly overhead. -- RFC 1925

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

http://www.flatcadracing.org/
http://youtu.be/89rVb497_4c

Offline maguromic

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Re: XXO/BVGC '38 Chevy Coupe Build
« Reply #349 on: April 21, 2011, 09:54:58 PM »
Looking good Buddy!  How many bolts do you have holding the tow half's together?  Tony
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Offline 38flattie

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Re: XXO/BVGC '38 Chevy Coupe Build
« Reply #350 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.
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With sufficient thrust, pigs fly just fine. However, this is not necessarily a good idea. It is hard to be sure where they are going to land, and it could be dangerous sitting under them as they fly overhead. -- RFC 1925

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

http://www.flatcadracing.org/
http://youtu.be/89rVb497_4c

Offline Captthundarr

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Re: XXO/BVGC '38 Chevy Coupe Build
« Reply #351 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.
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Offline 38flattie

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Re: XXO/BVGC '38 Chevy Coupe Build
« Reply #352 on: April 22, 2011, 07:18:31 PM »
Quote from: 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.

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.
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With sufficient thrust, pigs fly just fine. However, this is not necessarily a good idea. It is hard to be sure where they are going to land, and it could be dangerous sitting under them as they fly overhead. -- RFC 1925

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

http://www.flatcadracing.org/
http://youtu.be/89rVb497_4c

Offline Rex Schimmer

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Re: XXO/BVGC '38 Chevy Coupe Build
« Reply #353 on: April 23, 2011, 12:39:53 AM »
Buddy,
How many scavenger sections do you plan to have pulling from the bottom end?

Rex
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Offline Koncretekid

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Re: XXO/BVGC '38 Chevy Coupe Build
« Reply #354 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!
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Offline 38flattie

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Re: XXO/BVGC '38 Chevy Coupe Build
« Reply #355 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!

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With sufficient thrust, pigs fly just fine. However, this is not necessarily a good idea. It is hard to be sure where they are going to land, and it could be dangerous sitting under them as they fly overhead. -- RFC 1925

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

http://www.flatcadracing.org/
http://youtu.be/89rVb497_4c

Offline Rick Byrnes

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Re: XXO/BVGC '38 Chevy Coupe Build
« Reply #356 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.................
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Offline WOODY@DDLLC

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Re: XXO/BVGC '38 Chevy Coupe Build
« Reply #357 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:
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Offline 38flattie

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Re: XXO/BVGC '38 Chevy Coupe Build
« Reply #358 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?

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With sufficient thrust, pigs fly just fine. However, this is not necessarily a good idea. It is hard to be sure where they are going to land, and it could be dangerous sitting under them as they fly overhead. -- RFC 1925

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

http://www.flatcadracing.org/
http://youtu.be/89rVb497_4c

Offline SPARKY

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Re: XXO/BVGC '38 Chevy Coupe Build
« Reply #359 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
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