Quote:
Originally Posted by v3.2mc
went through some of my old notes looking for specs on this, but couldn't find the ///M ones.
for comparison though, here are stock sport non-///m E86 alignment specs
Front Camber = range of -0.5 deg to -1.4 deg
Front Toe = +0.05 deg to +0.18 deg (toe in)
Rear Camber = -2.6 deg to -3.1 deg
Rear Toe = +0.17 deg to +0.37 deg (toe in)
on my 3.0si with eibachs i was at -1.5 in front and -3.1 in rear (both camber). toe for both was set at mean for both front and rear. no adverse tire wear to report.
i can't imagine that the ///m alignment is too far off from the above specs. i also agree that most premature tire wear is caused by ill-adjusted toe.
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Front specs are pretty close to what an ///M would run, except it's -.7 not -.5.
Rear specs, however, are way off for an ///M! There's a bit difference between the 3.0 and the ///M settings rear.
Rear specs for the ///M are -1.6 to -2.1 with a total toe-in of .47 - .57.
I'd run towards the low end of the negative camber settings rear, and max out the front camber within the stock settings or just beyond (e.g. -1.5 to -1.8) with minimal toe-in within the stock range.
A full discussion of the stock alignment for the ///M can be found
here. See post #4 by Jmillet in particular.