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      02-19-2020, 01:37 PM   #17
Poffman
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Drives: 2010 M3
Join Date: Jan 2017
Location: Seattle

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Quote:
Originally Posted by XutvJet View Post
Quote:
Originally Posted by Poffman View Post
Good point, there are several factors you could in theory change. I am sure you couldn't fit 275/35 on the rear of that thing though
Definitely not getting 275s in the back of the M240/235.

Though I don't notice an issue with straight line traction or handling running ~370whp/400wtq and an LSD with my square 245/35R18 MP4S setup. I also added 30% stiffer Dinan springs to the rear axle (only) to quell a lot of that bounce you described in the M240. I would have really preferred a passive shock option because I don't find the adjustable shocks to be particularity good in Comfort or Sport, but the Dinan springs did help quite a bit.

I'm currently hating life running winter performance 225/40R18s on my M235. The difference in handling, steering effort and feel, braking, ride quality (overly soft now) etc. is so terrible. It's like a different car and feels much like the XDrives I've driven in the past.
Thanks for the insight, good to hear the springs were helpful. I was really surprised at that in particular.
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