Saturday Night Racer

Saturday Night Racer
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Saturday Night Racer >> RACE TECH >> gearing for bako or vv
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Message started by JOHNSON_22c on 12/10/10 at 2:42pm

Title: gearing for bako or vv
Post by JOHNSON_22c on 12/10/10 at 2:42pm

what gear would u run in a sport mod at bako or vv with a muncie trans

Title: Re: gearing for bako or vv
Post by mighty16x on 12/10/10 at 3:38pm

most would say 5.83 is the best starting point. but it all depends on the motor combination.
i was up to a 6.20 and never broke 7000rpm.
i know other guys running 7500rpm on a 5.67. at least they claim! :-/

Title: Re: gearing for bako or vv
Post by Andrew on 12/11/10 at 9:04am

If you're running a ton of hp, you'd be looking at a taller gear. I never had a lot of hp. Probably in the 400-450 range. I ran 6.00's and could go to any track without breaking 7000rpm. It's tire spin that'll kill you.
The trans doesn't matter. They're all 1:1 in go gear.

Title: Re: gearing for bako or vv
Post by fwmod01 on 12/11/10 at 11:59am

huh 620 and never hit 7000 something wrongs with the motor combo or THE DRIVERS SCARED TO PUSH ON THE THROTTLE

Title: Re: gearing for bako or vv
Post by mighty16x on 12/11/10 at 12:38pm

yep, scared! its true. i dont have much motor. but enough to win the championship! we are gonna take the same combo to bako and see how it works!

Title: Re: gearing for bako or vv
Post by scott_pounds on 12/11/10 at 6:10pm

talking about what gear to run, at Bakersfield it always go's of the motor that you are running, and what kind of power your making, at the start of the season in winter time when the track is fast and hooked up we run a 567 or 583 with a 383 or 406 and turn around 8000 and in the summer when the track get slick and slows down we run a 600 and sometimes 620 and turn the same rpm's but thats changing this year with the new rule that we have to run a 7800 chip its going to change our package a little, we will still start with a 583 and see how it go's

Title: Re: gearing for bako or vv
Post by mighty16x on 12/11/10 at 6:16pm

scott_pounds wrote on 12/11/10 at 6:10pm:

talking about what gear to run it always go's of the motor that you are running, at the winter time when we have a fast track we run a 583 with a 383 or 406 and turn around 8000 and in the summer when the track get slick and slows down we run a 600 and sometimes 620 and turn the same rpm's but thats changing this year with the new rule that we have to run a 7800 chip its going to change our package a little, we will still start with a 583 and see how it go's

scott, how much difference do you think a 360 limit and a 500 cfm 2bbl on gas would make gear wise, compared to your current packages?

Title: Re: gearing for bako or vv
Post by scott_pounds on 12/11/10 at 7:50pm

I would try a 567 to start with, when we run a small CI motor we run a 620 gear, with a motor that make's around 550 hp, I think that a 567 would be a good starting point, do you no if there is a rpm chip rule for the sport mods, with the motor rule and a 2 bbl carb you'll turn around 6700 with a 567.

Title: Re: gearing for bako or vv
Post by mighty16x on 12/12/10 at 8:15am

no chip rule yet. but that might be a good idea. lets see how it goes in imca.
thanks for the opinion.