In Reply to: is the flywheel universal? posted by frank on July 17, 2000 at 01:03:47:
i personally have no experience with doing that (the M3 flywheel has some pins on the backside that the 325 does not to run the Motronics)your M3 would not run without these. they both use the same 8 bolt pattern and have the same machining spec's(except for dual mass flywheels). so i have no idea why they would do that.the flywheel is independantly balanced so would not affect motor balancing but they would have to install the extra pins in exactly the right place to run the Motronic's (a lot of work for no reason)
i think the clutch bolt pattern is the same on both flywheels so yes they will cross over both way's exceept like i said the M3 clutch disk is thicker and the pressure plate has heavy duty spring in it (racing clutch), part of the reason the pedal is so hard! and of course three times the price(Mx3)!!!!