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      10-20-2010, 03:59 PM   #7
v3.0si
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Drives: '08 Z4C 3.0si
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Quote:
Originally Posted by shift@red View Post
This is not correct. That wheel offset and size will extend 7mm more but also have 5mm less clearance on the strut side of the wheel.
As far as handling goes, a wider track ALWAYS helps. Pushing the wheels out further, especially with ample contact patch, makes for greater stability. Think about it. If you were to take the same object, but have its wheels set at 3" apart and try to swing it around on a frictional surface vs wheels set 6" apart, which is going to spin more easily? The one with the smaller track.
dekaliber's math is correct, shift@red... the stock front wheel on a non-///m is 8.0" x et47, moving to an 8.5" x et41 will retain inner clearance (which helps reduce extra loads on the bearings) and move the outer edge to +12mm.

this 8.5" x et41 will increase front track by nearly 0.5" over stock.

the contact patch will only increase if a wider tire is used.
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