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      10-14-2019, 08:18 PM   #31
Michael9218
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Drives: 2007 Z4 M Coupe
Join Date: Oct 2012
Location: Woodstock, GA

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Quote:
Originally Posted by dre99gsx View Post
Any thoughts on mine being a 3.0si (330i E46) front spindle/mcpherson strut design vs the Z4M's E46 M3 spindle being stronger? I haven't seen many 3.0si's with BBKs commenting on knockback.
You're in uncharted territory here...

The Z4m has E36 knuckles.

Quote:
Originally Posted by dre99gsx View Post
I also wonder - I use 7075 T6 Alum lug nuts. Could they be too compliant where the wheel and rotor actually move during high G turns? I suspect I'm the only one here on aluminum lug nuts. I can run steel next time, but my last resort is to install the 4lb springs into the caliper. I have an event in 4 weeks to test this out.
Haven't seen anyone using aluminum wheel nuts. Doesn't sound like a good idea. Definitely an application for stronger steel.
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