Quote:
Originally Posted by DaveB
It'd not as huge of a difference as many believe. It's "feels" like a huge improvement, but when you look at it on paper, it's not going to make a big difference. Maybe .1 seconds in the 1/4 mile if you're good with the shifter. The gearing of the 6MT is already pretty deep and VQ35 revup doesn't rev nearly as high as the M3's I6 so it's not as dependant on the torque multiplication. With the Vortech, the extra gearing will definitely help though.
I'd steer clear of lightened flywheels because they'll make your tranny sound like a big rig at idle and in the lower rpms. A lightened flywheel will also wreck lowend torque and the car's launching ability.
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So you would suggest I go with 3.9's instead of 4.08's? I have read mixed reviews on gears with supercharger set ups. Some say it is detrimental and some say it helps.
The shop suggested that I let them install an upgraded clutch and flywheel on their own. If you know that the LTFW will hurt lowend tq and ability to launch I might as well tell them not to put the flywheel in and save some $ at the same time. It seems to me that this particular shop suggests this type of set up for all their FI installs (Upgraded clutch + LTFW).