Originally Posted by Norm Peterson

With that information, right now your axle roll steer is somewhere around 9.5%, which is rather high compared to stock (a little under 3%, which is a pretty good place to be for a wide variety of driving situations). I'm guessing your LCA inclination is about 6° uphill toward the axle vs about 2° uphill toward the axle as OE. Those figures are with a 185 lb driver aboard.

Relocating the axle side LCA pivot downward something like 1.1" to maybe 1.25" will get you back to the OE amount of axle steer (around 3%, with LCA inclinations 2° or so uphill toward the axle). In your case, at a little more than 1.5" down, the axle steer starts going "loose", which can be good for autocross if maybe not so good in other situations, such as where the road might turn at the same time it crests a small rise. Fortunately, the effect is pretty mild as long as you don't drop the axle side pivot heights too much more than the car is lowered. Twice as much as the car lowering would be a lot and way too much for your purposes. At 40% more (about 1.75"), maybe not . . . but you'd have to drive it to find out for sure, as the numbers alone can't tell you what you'll be happy with.


Norm