XXO/BVGC '38 Chevy Coupe Build

Started by 38flattie, July 21, 2010, 06:34:16 AM

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Tman

#1290
August 23, 2012, 12:27:51 PM
Quote from: jdincau on August 22, 2012, 07:47:41 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


Makes me feel better about my QC.....Sparky was starting to into my head with all his GM talk!

38flattie

#1291
August 23, 2012, 07:48:23 PM
Dales record verification run in XXO/BVGALT- 165.949

http://youtu.be/IaikdUEGO4s
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

SPARKY

#1292
August 23, 2012, 09:56:56 PM
Buddy the V-8 quick change has an early Ford Bevel gear at its heart !  which is yours based On-- Dana??
Miss LIBERTY,  changing T.K.I.  to noise, dust, rust, BLUE HATS & hopefully not scrap!!

"Security is mostly a superstition. It does not exist in nature, nor do the children of men as a whole experience it. Avoiding danger is no safer in the long run than outright exposure. Life is either a daring adventure or nothing."   Helen Keller

We are going to explore the racing N words NITROUS & NITRO!

38flattie

#1293
August 24, 2012, 05:33:31 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?
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

38flattie

#1294
August 24, 2012, 03:49:30 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!
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

Tman

#1295
August 24, 2012, 04:13:00 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:

Captthundarr

#1296
August 24, 2012, 04:17:48 PM
Based on what ya'll have done, this ought to be real good. :cheers:
Frank
Live,Laugh, Love /  Jack Scratch Racing /ECTA   
Amy Hartman-Driver, Frank Hartman-everthing else.
C/GALT 137.65 Ohio Mile check that 144.12 2013, AA/GALT 159.34 Ohio Mile 2014. B/GALT 180.577 RECORD 6/15

Jack Gifford

#1297
August 24, 2012, 10:06:52 PM Last Edit: August 24, 2012, 10:08:47 PM by Jack Gifford
Tell me your reasoning for dry-sumping the trans and rearend.

Congrats on your SpeedWeek efforts!
M/T Pontiac hemi guru
F/BFL 1-mile Loring record 2020

DND

#1298
August 24, 2012, 11:51:18 PM
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

38flattie

#1299
August 25, 2012, 07:53:26 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!
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

WOODY@DDLLC

#1300
August 25, 2012, 08:06:54 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 ???  :?
All models are wrong, but some are useful! G.E. Box (1967) www.designdreams.biz

Roseville Carl

#1301
August 26, 2012, 10:47:43 AM
Woody thats great! Buddy should get him one of those!!!
:cheers: :-D
"Keep Em Between the Whites"

and yes Virginia the world is indeed Flat

desotoman

#1302
August 26, 2012, 11:19:48 AM
Quote from: BoredAndStroked on August 17, 2012, 11:16:09 AM
Final gear was a 2.40 - with a 1 to 1 trans ratio and 28" tires.

Quote from: 38flattie on August 17, 2012, 11:48:55 AM
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.
I love the USA. How much longer will we be a free nation?

Asking questions is one's only way of getting answers.

The rational person lets verified facts form or modify his opinion.  The ideologue ignores verified facts which don't fit his preconceived opinions.

38flattie

#1303
August 28, 2012, 04:40:13 AM
Quote from: WOODY@DDLLC on August 25, 2012, 08:06:54 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 ???  :?

Woody, it was great seeing you too!

Will those 'wings' help us with aero??!! :wink:
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

38flattie

#1304
September 02, 2012, 12:20:49 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!
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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