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Toe in changes didn't help (eom) (archive)

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Posted by Doug on June 13, 1999 at 19:40:05:

In Reply to: Re: New Tires first? posted by DCC on June 13, 1999 at 13:25:02:

: Doug,

: I have noticed that the 'shimmy' of the steering wheel can be directly controlled by the amount of front toe-in on the M suspensions
: Have you tried to dial in less toe-in in the front?...I have very good results with that route from eliminating the 'shimmy' on my M3

: Dan


:
: : Yes, frankly I have been very disappointed in the stock Dunlops. They are very fast to get out of round and are impossible to keep balanced. I have had them balanced and the alignment done to within an inch of their collective lives and I still have a shimmy (actually causes the wheel to vibrate). This is obviously a serious problem in the proper performance of the vehicle. The second most noticeable problem with these tires is excessive plough in the front end when going around long sweeping turns such as cloverleafs off of freeways at even modest speeds. These problems are totally absent in other cars that have changed their tires (and nothing else). You will recall that Steve made a point of describing how different tires effected the setup of the suspension that you needed, and was one of the reasons that sway bars need to be adjustable, i.e. you will need to adjust the amount of over or understeer based on what the characteristics of your tires are.

: : : Thanks Doug. So you believe new tires over the stock Dunlops should be the first upgrade, followed by suspension enhancements?




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