Help me understand...

[wellis77]

If both arms are canted down toward the front (side view), and the upper is tilted more than the lower, then your IC for anti-dive is outside the wheelbase (ahead of the car), no? The anti-dive may work that way because the vehicle weight doesn't have the same leverage over the front suspension with the fulcrum that far ahead of the C/G. Interesting idea, and one I'm not familiar with. With the UCA at a higher angle, you should be losing (slight) caster on bump (and under braking), as Ben pointed out. Your simulation results don't show that, so something isn't making sense there...

I mapped this out Ray with the UCA pivots at -2 9/16" and 5 7/16 (rough estimate) and the IC for anti-dive is behind the car at 20' 1 7/8" with the height 2' 5 15/16" above ground.