Visit The Dirt Forum for More Information

Author Topic:   spring rate in relation to a non locking rear end more or less.
jeraney
Dirt Roller

Total posts: 8
posted January 18, 2004 06:06 PM  
I am building a 76 pure stock camaro. 350 3speed 5.57 gear dot 70 tires.
My question is what type of cross weight for a stock non locking rear end. No rear sway bar.3/8 mile Central Washigton State Fair Raceway. Just looking for a good base line on spring and shocks. New to the sport.

dan63
Dirt Full Roller

Total posts: 44
posted January 18, 2004 06:37 PM  
Do your rules require a non locked rearend?

jeraney
Dirt Roller

Total posts: 8
posted January 18, 2004 09:16 PM  
Rules read as
C. No posi- Trac rears. No locked rears.
D.Rearends Teched by one wheel in air on a jack stand. If your foot is found on brake you automaticaly fail test. If your car falls jack standyou fail, one retest. lose of money and points. No shimmied or otherwisestiffened rear ends will be tolerated. That what the rules say.
2004 Pure Stock rev jan 3 2004

jeraney
Dirt Roller

Total posts: 8
posted January 18, 2004 09:21 PM  
Guess i should read what i type.
s
Should be loss not lose . No brains no Headache.

rico 08
Dirt Forum Champ
Total posts: 1139
posted January 19, 2004 05:13 PM  
If it were me i'd try alot(read tons)of left rea r weight.

jeraney
Dirt Roller

Total posts: 8
posted January 19, 2004 06:44 PM  
Ok the battery is on the left side in back of the seat.The fuel cell is 17.5x17.5x10 that is mounted on the left side 14 inches off the ground. The camaro came with 6 cyl plane jane no options. I think it will have lite front springs. There on the list to be checked for spring rate. Just trying to find a good ball park number for the springs rate i should start with our rules. Thanks open for any information. The Track is 11 degrees bank 3/8.

M1
Dirt Freak

Total posts: 257
posted January 20, 2004 08:27 AM  
we run open rearends too. But we all run metric cars, so I have no idea how to suggest for a camero.

There isnt any real good tricks for getting the open rearend to respond as well as you want it too. Try the weight over the left rear, and keep in mind you would probably do best with negetive stagger. I run no stagger in the rear when its tacky, and about 1-2 inches negetive when its dry. ALOT of wheel spin if you are not easy on the gas on exit. It will take some easy peddleing to keep it from smoking the left rear.

I have tried anywhere from 2-8 inches of stagger in the front to keep it turning.

And good tires. Soft tires like the cooper cobra, I guess is one of the softest ones you can find.

[This message has been edited by M1 (edited January 20, 2004).]

dirtrace54
Dirt Maniac

Total posts: 192
posted January 21, 2004 01:11 PM  
if your talking about a 250 or 292 straight 6, then the springs will be heavier. The straight 6 is heavier than a small block. The block on the 6 is a much heavier (beefier) block. Just though I would inform you of that.

jeraney
Dirt Roller

Total posts: 8
posted January 21, 2004 07:18 PM  
I think L-6 250 or 194 weight is about 440 lbs. A 350 is 575 lbs.Give or take some.

Back to the Archives