what gears should i run???

[427cutlass]

My sig has the specs on my combo, im getting a 1.6 60 foot with the 3.55s but im thinking a 4.10 would definatly improve that. I cant decide between the 3.90s or 4.10s. dont wanna rev it over 6500. curently hava a slopy b&m 3500 which im gonna swap for a tighter one... thanks in advance!

 

[Anonymous]

we need to know the tire size, and what rpm and mph do you cross the stripe at? oh yeah, how much does your car weigh with you in it.

 

[427cutlass]

28x10.5 slick, crossing the line at 5500 with loose converter, car weighs 3520 with me in it :mrgreen:

 

[grizwald]

i'd go with the 4.10. i don't have the calculator, but i would think that you'd stay under 6500 at the line.

 

[toxicbu]

4.11 spool

 

[Ed Cannon]

Is it a street/strip car, or just strip?

 

[427cutlass]

street/ strip but not to much street driving.

 

[Anonymous]

4.10 gears will only realistically give you about 300rpm difference across the stripe.

 

[LS6 Tommy]

Are you spinning or bogging? If your 60' is high & you're bogging, tightening up the converter is the last thing you want to do in a "heavy" car. Leave it & try deeper gears. If you're spinning, you may need a tighter converter & more gear to slow tire speed. It may also just blow the tires off easier with a tighter converter. Unfortunately, it's kind of a trial & error thing. I'm sure others here with more drag knowledge than me will chime in if I'm way off base.


Tommy

 

[Sikmalibu]

4:11's would be the best for what you wanna do, and still be able to drive it on the street once and a while. I got 4:56's and I would not advise them for a street car.