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Re: oversteer is one reason (archive)

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Posted by david schweighoefer on April 21, 2002 at 12:00:26:

In Reply to: Is it necessary to stagger 18" wheels? posted by Kenh on April 20, 2002 at 23:20:02:

It is not necessary. When the sport model was designed, BMW engineering did take into consideration the unique American aversion to oversteer...wider wheels and tires in the rear do fight the tendency of the ass end to come around on you, especially if you make the mistake of lifting off the go pedal in a turn when you feel you are "in" too much. Probably the most obvious example of this is the Porsche 911 series...here the engine is actually mounted behind the rear axle. A most common accident happens when the overzealous and untrained driver gets into it in a turn, and lifts off the gas, in effect "unloading" the rear...and it does come around quickly. I know...I have one and almost wrecked it...Lots of American drivers seem to like the understeer that front wheel drive provides...no matter how hard you turn the wheel, the car wants to remain in a straight line. Personally, I think steering with rear wheel drift is cool....although my 98 740i has DSC and drift is nearly impossible to achieve with it engaged...and it is a big and heavy vehicle for this type of driving. Perhaps they just wanted it to look cool, but considering the transmission and suspension design of the sport....and the reputation of BMW engineering and design...I think not. My two pennies...

david

OK. I got the clears installed all around. Now to the wheels and springs. Not sure I understand the stagger thing other than looks. Is there some mechanical reason for doing this? Doesn't this eliminate ability to rotate tires?

Thanks!





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