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Tire scrub at the track (archive)

[ Follow Ups ] [ 5-series (E28) Message Board ] [ Msg. Board FAQ ]

Posted by Skid on October 15, 2000 at 15:31:19:

After a few recent track events I note I'm getting wear too far around the shoulders of my AVS Sports. This despite a) camber measured at -0.9deg L/-1.3deg R thanks to H&R lowering springs, .5 deg negative camber plates, strut brace, and tires @ 41psi cold & 45psi hot. Observers note I'm still getting a fair bit of lean, again despite RD sway bars, H&R's, Bilstein Sports.

My questions are: Although the measured camber is outside the manual's -.83deg spec, is the measured camber value sufficient for track use? Incidently, I do feel the onset of straightline shimmy at exactly 80kph (50mph) and will replace the front stock bushings & arms this winter. Could this looseness also somehow translate into the loss of negative camber under hard cornering? Or is there just a natural limitation imposed by chassis flex as to how hard these cars can be driven? I was going to prep the car for SoloI next year but am now wondering if the E28 chassis is up for it.

Mark
'88 535is




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