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      07-09-2010, 01:42 PM   #5
rzm3
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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.
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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