leaf spring - what if

[astroracer]

I have to agree with Ray. Most "dedicated" track cars running leafs will generally use Del-A-Lums or solid bushings in the front, eliminating any deflection there. And, like Ray stated, most performance springs will not have much of an arch. I really don't think axle deflection in a hard turn roll situation will cause much of a "rear steer" condition. The front of the leaf is going to be fairly stiff as compared to a four link bar. Any deflection will probably be in the cross-car direction or side to side movement of the entire axle on the springs...
Anyone have a Go-Pro they can set up to watch the rear shackles deflect in a hard turn? THAT would be interesting to see as it would show just how much "squash" the spring is seeing.
Mark