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      07-01-2009, 01:24 PM   #33
dcstep
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Drives: '09 Cpe Silverstone FR 6MT
Join Date: Nov 2008
Location: Colorado

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2009 M3  [8.40]
Quote:
Originally Posted by J08M3 View Post
^-- they are both cosmetic.... Simply switching to a slightly stiffer spring isn't going to do much for you. If you want performance you must take into account the entire geometry of the suspension.
I disagree. A stiffer spring gives more control of jounce and rebound, so long as it's still matched with the shock, as is the Dinan. It's a matter of degree, however. Adding negative camber will add more performance than merely stifffening the springs, but doing both is even better.

Of course, spring and damper choice is largely dependent on usage. For street driving, the Dinan improves ride by eleminating any ambiquity in the "Normal" setting with EDC. Center of gravity reduction is small, but that, combined with the stiffer spring, does indeed reduce body roll.

Dave
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