Quote:
Originally Posted by Dackelone
Mike - I would look at your rear suspension links. #18 & #19 in this diagram....
Attachment 782498
I remember Harold at HPA saying they go bad all the time. He sells the M3 links to increase traction off the line. I bet your are bad/worn out. I think a four wheel alignment wouldn't hurt matters either. 
BMW Rear Guide Rod Kit - Better traction and handling
http://www.1addicts.com/forums/showt...light=traction |
Link 19 is especially bad. This link is so weak that I can thread a screw driver through both ends and get that gap to open and close slightly by hand. Per HP it twists under acceleration which in turn changes the toe. So under hard acceleration your car is actually flexing and changing it's rear alignment for a split second then snapping back causing a hop, which then releases the tension only to do it again.
Here's a photo of it off HP website. You can see how pathetic it looks compared to the M link