[MyOpel]

When I first posted I didn't look at all the pictures, now that I look at them I realized that BMW actually designed that bushing to compress. On a bumpy road you want the wheel to go up and down vertically without camber change however under hi cornering you want more negative camber. The BMW bushing allows this because on the bumpy road there is not much side load so the camber will not change, but in a fast corner there is lots of side load and the bushing will compress and allow the upper arm to come in closer to the body increasing the negative camber and thus the tire is planted better on the road. Installing this bushing in our front control arms would cause them to change toe under sever forces. Probably not noticeable on the street unless you hit a very large pot hole but under performance driving conditions it would cause bump steer.

I'm a big fan of poly in street applications, provided they are used correctly. Front vertical bushing is NO place to put poly, but the horizontal bushing would be fine. Also remember the poly bushings operate much differently and road fell is not as rough as people say. Under normal driving if you had two identical new cars one with rubber and one with poly I think it would be difficult to tell the difference.

HaHa Elvin you think I’m killing you! I often get together with some of the corvette forum members, one of them has a 600hp road race corvette and he gave me a ride around Mosport. And this is what I was Forced to watch last weekend http://www.youtube.com/watch?v=BbOhPCJIREY
If only I had the money and room I’d love to build a dedicated race Catera, maybe in 10 years time