10-21-2011, 04:30 PM
Performance Suspension Guru
Join Date: Oct 2009
Location: Richmond VA
My Ride: 03 331Ci 5spd R1200R
| Where to start,
First lets throw out all the supposition that already might be in this thread.
I own & drive both a Quaife LSD equipped street car (330Ci) and a Diffsonline Variable Ramp-3 Clutch LSD for my 325i race car. That said, I won't be giving any supposition.
For street use you can't beat the Quaife. Maintenance free, no new noises, never needs to be rebuilt like a clutch type & always gives full traction unless one rear wheel is physically off the ground. If you go to a road race track, you may find that in really tight turns you'll get a little inner wheel slippage. But still much faster times on the clock when compared to an open diff. For a lot of autocross events I'd go with a custom diff from Diffsonline or an OS Giken. So if your on the street 95% of the time, the Quaife makes an excellent choice. When talking with any of these companies, tell them exactly how you plan on driving the car & what RWHP you have.
For Quaife, go here first & ask for a deal. Harold / owner.
For a custom setup or Quaife, Kaas or OS Giken. Dan / owner.
Rob #43 ITS/ITR/STU, BMW 325I, STU LAP RECORD
SUMMIT POINT WV 1:24:229 SCCA
(DynoDynamics https:vimeo.com/8486878 Dyno Video)
"Chance Favors The Prepared Mind"
I BUILD SUSPENSIONS (Consult) FROM MILD TO WILD FOR RWD & XI E46's
I Know How To Fix The Rear "Bouncing" Problem On Your Cheap Coilovers Like: Jom RL FK SE & RK.
Originally Posted by RacerX
Nitrous is a little trickier than boost, but it's not the spray that kills motors, it's STUPIDITY!!