Quote:
Originally Posted by Biginboca
That’s great thanks for posting it!
Dude I would throw a 3.73 take off in that car ASAP. Your car is fast but you haven’t unlocked the potential of what your car can do, and the diff is the key. I time your video and got like 4.6-4.8 seconds from 20-60mph. (I didn’t want to do 0-60 cause it looked like you weren’t WOT until like 20.)
My car has ~12% less power than yours and is doing about 4.3-4.5 seconds in that same 20-60mph.
The difference is with my 3.91 im putting about 17.5% more torque to the road than stock diff, and still more torque to the road than you. You put a 3.73 take off diff in there (sweet spot for your set up IMO) and that thing will be a BEAST!
I wouldn’t even wait for a LSD if money is an issue I would just do a $200 used 3.73 for now. You will not regret that at all, not one bit.
I definitely wouldn’t bother with intercooler, meth, or anything else until you do the diff. I don’t even think those other things would be worthwhile pursuing now (or even maybe ever since you would be the guinea pig) when you can gain what is the same effect as adding ~40ft/lbs at the motor with a $200 diff swap you can do in your driveway.
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Unsure about 330i's gearing but my 130i is running stock 3.46 final gear (supercharged at 295whp) and am already having traction issue with 255 rear (Dunlop Z3 / AD08R level compound), not sure what will happen if I dump a 3.73 in it lol. 2nd gear will probably be as useless as 1st hahaha.
LSD is a must with the Supercharger otherwise you won't be able to put the power down at tight corners.
I am consistantly hanging with the big boys (E92M3, 350ps light tuned N54/55 135/335i, E46M3, you name it) with my S/C, no complain.