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Author Topic:   Rear gears
mitch
Dirt Full Roller

Total posts: 27
posted January 01, 2002 02:01 PM
I am running a 79 Cutlass Salon street stock with 383ci with 4-barrel carb, 3-speed saginaw 3-ring with a 10-bolt 308-rear gear. Track is 3/8 mile highbank clay. Going to run in 2nd gear,Would like to know if this gear will work.And what RPM I should try to turn. Any help you can give me would be appreciated. I am a new driver setting up my first car. Mitch

nut3d
Dirt Maniac

Total posts: 161
posted January 01, 2002 02:28 PM
Try a 5:13 to a 6:50 gear with the tranny in high that way you will not burn the tranny up. and it will also mean the more power you can out to the ground.

redneck bubbas racing
Dirt Freak

Total posts: 213
posted January 01, 2002 02:48 PM
I think that a 2.56 would work out much better for you. They are very common and can be found almost everywhere. Then run your tranny in first. Depending on which 3 sp. it is you should come out around a 7.29. It might be a little high but quite a few run it as common ground on street stocks and hot stocks for a 1/4 and a 3/8.

DEEDDUDE
Dirt Maniac

Total posts: 111
posted January 02, 2002 07:48 AM
Mitch, with the trans and gear you have your final will be 5.82. You need to be around 6.20-6.50. I run a 6.53 final with a 88 RR and turn 7200rpm. a 3.23 gear will get you 6.10 final and a 3.42 will get you a 6.46 final. If you keep the rear and find a sag. 4spd no line you will get 6.19 in second gear. Good Luck

racer17j
Dirt Forum Champ
Total posts: 1565
posted January 02, 2002 10:22 AM UIN: 54865418
if you can run small tires like a 77-78 roll what you have will work just fine you will not be able to run in 3 gear with that rear end they don't make gears big enought for what you need i'm running a 323 with 80in tires this year on a 3/8 in 2nd gear 1.52 hope to turn right around 6000 what you are going to want to turn is up to your cam do you have the specs if so you want to keep in your power band also what roll tires are you running?

[This message has been edited by racer17j (edited January 02, 2002).]

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