Saturday Night Racer

Saturday Night Racer
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Tracks >> ANTIOCH SPEEDWAY >> best final drive for Antioch hobby stock
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Message started by wydopen58 on 05/02/12 at 7:54am

Title: best final drive for Antioch hobby stock
Post by wydopen58 on 05/02/12 at 7:54am

New car New driver. What would be the best final drive for my hobby stock car?

Title: Re: best final drive for Antioch hobby stock
Post by Brad33 on 05/02/12 at 9:44am

I dont know what the best ratio is, but I use 6.88. I never rev higher than 6000 RPM

Title: Re: best final drive for Antioch hobby stock
Post by wydopen58 on 05/03/12 at 11:44am

i have ran 6.88 for the past two weeks racing and the car hasnt seen over 5k on the tach but hits 6200 no problem on the street. its wierd. so i changed the gearing to 7.76. going to see what happends with that. hope it doesnt slow me down too much this weekend. i ran in merced last friday and the car feels great but i havnt seen anything over 5200. but like i said, it pulls 6200 without a problem on the street.

Title: Re: best final drive for Antioch hobby stock
Post by blueoval22 on 05/04/12 at 7:12am

We run 733 in one car and 738 in the other. We tried the 688 that Brad runs but with the cam/engine in the 18 car it KILLED the car getting off the corner. I think it's more a function of getting your final drive ratio to work with your cam profile.

As for the 6000 rpm figure you mentioned I think it's more a function of the engine's ability to breathe rather than gear ratio that governs this figure. At one point we were allowed an edelbrock 2701 intake and the car would turn 6500 rpm, now with stock manifold only 6000 as you stated.

Be cautious with your final gear...too much will give sustained high rpm which is very hard on valve train components both springs and rocker arms, even studs.

Good Luck, Dan McCown

Title: Re: best final drive for Antioch hobby stock
Post by wydopen58 on 05/04/12 at 11:06am

well, i guess ill find out tomorrow how the 308's do... thanks guys. see you there

John