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      07-09-2010, 01:42 PM   #5
rzm3's Avatar

Drives: E92 M3
Join Date: Aug 2007
Location: USA

iTrader: (16)

So here are the spring rates I know people have used:

800/1100: user reports rear could be slightly softer
550/900: user seems to be happy but needs more testing
500/800: the kw rate which many have tried and seems to be a good balance
500/750: slightly understeer but a good, safe set up

Again, there is no magical formula. The set up could vary based on the track you are driving on, damper settings, and driver preference.
2011 E92 M3 DCT
1991 Spec Miata
2008 E92 M3 DCT - KW Competition 2-way / Brembo 365 BBK / OMP ARS racing seats / rear seats delete / GT4 aero / AiM EVO4 data logger / SmartyCam racing camera
2008 E92 M3 6MT
2008 E92 335xi