Originally posted by Profoxcg
can someone please tell me what exactly does adding or taking away shims from the rear upright does? when you will add and or subtract?
The most normal position of the rear link arm is in the outer hole of the rear shock support assy. and with 2.00mm shims in the upright.
With more shims, more negative camber will the wheels have as the suspension compresses and viceversa.
The longer the link arm(inner hole) less camber variation we'll have as suspension compresses and viceversa.
Not putting shims, and/or putting the link arm in the inner hole produces very little camber variation when the car goes through a turn with the suspension compressed. You use this setting when you have poor traction, or wet track, or in little parking lot tracks, in which turns are done at low speed and you wan't the tires to have maximum contact. This is also true for rubber tires.