Mustang Instant Center

Adjusting the rear ride height alters the rear control arm geometry thus moving the Instant Center..So if you put a larger tire (diameter) on and keep the same ride height you have moved Instant Center.? So the larger tire will give you a bigger footprint, should hook better, moving the instant center which way is causing it to??

Without doing the map thing it is difficult to guess exactly but assuming you indeed do not change the height of the body and just raise the rearend in the car then it follows that the intersect point would have to move down. The distance from the rear axle probably would not change very much if at all.

dkp

How much of a height difference in tire size? It will only change the AS values, not the IC length.

going from a 28 to a 29.5