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      06-30-2014, 05:47 PM   #8
GTony
First Lieutenant
Australia
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Drives: 2015 X3 F25 XDrive 28i M Sport
Join Date: Nov 2012
Location: Queensland

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Quote:
Originally Posted by 0w40X1 View Post
My s28i with M Sport 8x18 and 9x18 makes the rear track a whopping 2 inches wider, and the car waddles at speeds around 100+ mph in wind.

At 152 mph (corrected to about 145 real mph) its deadly, and will never be tested there again.

I put 12mm Burger spacers on the front, and it doesn't start that see saw until about 130 mph which is a good top speed for the track.

I'm not drooling over car while I'm enjoying ride so performance trumps looks for me.
Interesting information because I have 7.5x18 to put on my s drive and can get 9x18 to put on the back, ( offset 35 same on 7.5's ). My original offset 34. Maybe spacers rear also.
From what you are saying I most probably will need spacers on the front to balance out the bigger rears. In my case would one say 12 to 15mm up front.
I guess with a normal road car with staggered fittings there needs to be a good balance/alignment between all 4 wheels/tyres.
Appreciate 0