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      03-17-2009, 04:36 PM   #44
Carbonic
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Drives: 135iM
Join Date: Sep 2008
Location: Pretoria

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2008 135i Coupe  [0.00]
Quote:
Originally Posted by J Tyler View Post
2) 225w is pretty narrow, meaning that in general you'll have to run slightly higher tire pressure than you would with a wider tire (due to the fact that a narrower tire operates at a higher slip angle to produce the same grip that a wider tire could produce at a lower slip angle, and therefore generates more heat, requiring a higher pressure to lessen heat generation). Aside from that general truth, I need to know specifically which tire you are running to be able to give a recommendation. Also need to know what type of weather you will be running in (cold, hot?)
I am running Bridgestone Potenza RE55S Semi-slicks. Ambient temperatures are usually around 30 C (86 F), track temps obviously way hotter.

I don't know if it has any bearing on things, but pretty much the whole of SA is situated at an altitude of about 6000 ft.
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2008 Alpine White 135iM, High gloss black / satin chrome trim, Xenon lights, Hi-Fi sound, ext. lighting package, BMW Performance wheels, side skirts, pedals, gear knob, exhaust, high gloss black grills, carbon mirrors, carbon decklid spoiler, 35% security laminate, Tii graphics
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