Diff ratio for 400+WHP!

tonyHTX

Who in the world is doing 4.36 gears on a boosted car!? I personally am considering switching from 3.69 to 3.3!

__________________
2007 G37S [VQ37HR] Sedan 6MT - Fast Intentions Stage 3 TT - @ttv36 #tptoons

jmroy6

Personally I would leave them. You can always buy stickier tires if traction is an issue with 4.08 gearing

__________________
2012 370z GTM SC

solidus

I think he meant 3.36 which is the FD of a 7AT. Personally I think that 4.08 on a boosted car is a bit of a stretch and the car should be making more torque on the dyno with 4.08's over what an OEM 6MT 3.69 makes seeing as the gearing is a torque multiplier. Unless the tuner compensated for the gearing during the tune.
FWIW I did a pumpkin swap on my 7AT G37 and going from 3.36 to 3.69 was the only mod that I've ever done outside of boosting my Z that you can feel instantly. The Pro: Immediate and significant acceleration, Con: Loss of cruise control (meh ) top end decrease in trap speed.