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      08-01-2010, 06:21 AM   #44
AWM3
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Drives: 2012 E92 M3, Alpine White
Join Date: Apr 2008
Location: Georgia, USA

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Quote:
Originally Posted by jmillet View Post
Not only does the camber dial out any understeer it also promotes better tire wear particularly in the front.
I played with R888 tire pressures yesterday at Pacific Raceways and found the optimum HOT presures to be 44 front and 42 rear. That equates to around 34 front and 32 rear COLD.
If you're looking for TOYO tires try Tires Direct http://www.tiresdirect.net/index.cfm prior to the end of June for some great pricing. My 245/40-18 and 255/35-18 combo can be had for $820 including shipping to Seattle.
My E46 M3 track car had a very stiff suspension with very little body roll and was lightened to about 3200 lbs, so other than having a longer wheelbase it was similar to the Z4M. I also found that 3.5 degrees negative camber in front gave the best tire wear and the most even tire temperatures across the whole tread surface (outside, middle, and inside). I have read that braking performance can be reduced with a lot of front negative camber, but I did not have any problem with that.
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