Thread: L.a.p 1302
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  #111  
Old October 20th 2011, 08:25
Bruce. Bruce. is offline
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Join Date: Jan 2011
Posts: 83
Wally's point:

As the stock suspension geometry is lowered, the design of the lower arm becomes a problem. At a certain point (when the pivot angle >90 degrees) the wheel gains positive camber as the suspension compresses.

As per this-


on the left, stock ride height, compressing the suspension results in more negative camber (blue shadow). In the middle, the lower arm is pointing up as the suspension is lowered so further compression results in the bottom of the tyre being pulled in. On the right, the balljoint is spaced downwards from the spindle reducing the angle between the lower arm and the strut to less than 90 degrees. This fixes the problem.

The other option is the raise the inner mount of the lower arm. Changing the strut angle will reduce the key angle but not by much and it adds a lot of unwanted static camber.

If you could machine a spacer with the correct tapers and internal/external threads this would really improve the handling of lowered cars. As a bonus, it would also fix the similar issues with the anti-roll bar.

Last edited by Bruce.; October 20th 2011 at 08:36.
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