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Author Topic: XXO/BVGC '38 Chevy Coupe Build  (Read 1032659 times)

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Offline 38flattie

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Re: XXO/BVGC '38 Chevy Coupe Build
« Reply #810 on: January 04, 2012, 04:48:19 PM »
Thanks Neil- I'll keep that option open!
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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

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Offline Peter Jack

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Re: XXO/BVGC '38 Chevy Coupe Build
« Reply #811 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
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Offline Rex Schimmer

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Re: XXO/BVGC '38 Chevy Coupe Build
« Reply #812 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
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Rex

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Offline 38flattie

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Re: XXO/BVGC '38 Chevy Coupe Build
« Reply #813 on: January 05, 2012, 05:46:33 AM »
Yes Rex, it would be easier! Guess I was over thinking the issue-thanks!
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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 Peter Jack

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Re: XXO/BVGC '38 Chevy Coupe Build
« Reply #814 on: January 05, 2012, 06:32:01 AM »
Isn't over thinking what most of us as racers specialize in???  :roll: :roll: :roll:

Pete
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Offline 38flattie

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Re: XXO/BVGC '38 Chevy Coupe Build
« Reply #815 on: January 05, 2012, 06:35:14 AM »
Quote from: 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

 :cheers: :cheers:
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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 #816 on: January 05, 2012, 09:21:42 AM »
most water pumps and alts function best at not over about 5000 rpm shaft speed.
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Offline 38flattie

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Re: XXO/BVGC '38 Chevy Coupe Build
« Reply #817 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?
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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 #818 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
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Offline 38flattie

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Re: XXO/BVGC '38 Chevy Coupe Build
« Reply #819 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!
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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 55chevr

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Re: XXO/BVGC '38 Chevy Coupe Build
« Reply #820 on: January 14, 2012, 08:50:49 PM »
Looks like the Miller front wheel drive fairings from the 30-s
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Offline 38flattie

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Re: XXO/BVGC '38 Chevy Coupe Build
« Reply #821 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.
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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 desotoman

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Re: XXO/BVGC '38 Chevy Coupe Build
« Reply #822 on: January 16, 2012, 08:04:29 PM »
Quote from: 38flattie on January 16, 2012, 07:22:45 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.
« Last Edit: January 16, 2012, 08:06:23 PM by desotoman »
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Offline 38flattie

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Re: XXO/BVGC '38 Chevy Coupe Build
« Reply #823 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!
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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 38flattie

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Re: XXO/BVGC '38 Chevy Coupe Build
« Reply #824 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!
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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
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