Originally Posted by
Radio Active
I'm only familiar with the type I posted, which, as I understand it, can raise or lower the effective pivot point, and thus raise or lower the rear roll centre.
There are two different pivot points on the quad V link. The roll center is where lines drawn through the vertical links cross, and can be pretty much anywhere, even below ground. The pivot point for the anti-squat is set by the height of the balls where the side links connect to the motor pod plate. One neat thing about this arrangement is that adjustments to roll center and anti-squat are independent-- changing one doesn't affect the other.
Jason is correct, the lower roll center will give more lateral grip at the rear. This requires stiffer side springs to achieve the same handling as a higher roll center. But since the jacking effect is eliminated by having the roll center at ground level, the handling is bit more predictable on high grip tracks.
Not that any of the above is going to make me go faster! I just did it for old times' sake, to be different, and because I think it's pretty.