What gears for supercharged Trans Am?
04-20-2010, 11:02 PM
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What gears for supercharged Trans Am? --------------------------------------------------------------------------------
Its about time to pull the trigger on an S60 but I'm still confused on gear choice for M6 street/strip car.
Car is right around stock weight (3500 without driver) after some weight reduction. Will have a little bit more here soon on the street and even more for the strip. Making 518 RWTQ with similar HP at lower RPM's. Shifting around 6200-6400 RPM's also.
The car is in the most recent GMHTP if you've seen it.
I'm looking to run a 26" tire, but can go up maybe another inch if I have to on the track.
I've heard I may run out of 4th gear with 4.10's which I definitely don't want.
What about 3.90's?
What's the best way to select gears for an FI car? I'm hoping to only do this once.
Its about time to pull the trigger on an S60 but I'm still confused on gear choice for M6 street/strip car.
Car is right around stock weight (3500 without driver) after some weight reduction. Will have a little bit more here soon on the street and even more for the strip. Making 518 RWTQ with similar HP at lower RPM's. Shifting around 6200-6400 RPM's also.
The car is in the most recent GMHTP if you've seen it.
I'm looking to run a 26" tire, but can go up maybe another inch if I have to on the track.
I've heard I may run out of 4th gear with 4.10's which I definitely don't want.
What about 3.90's?
What's the best way to select gears for an FI car? I'm hoping to only do this once.
04-21-2010, 01:49 AM
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i would guess 342 gear would be perfect for a FI car. especially if you are wanting or perfer to run a 26 inch tire and your top-end should be pretty high ,like 130 + mph . you can still go up to a 27 inch hoosier if you want and you should be ok...i guess. 
