Encore,
Left rear corner,
Notice the new billet 7075-T6 rear upper control arm. They were made today. For comparison, mild steel has a tensile strength of 55,000 psi--7075-T6 has a tensile of 85,000 psi.
We have been able with all of our aluminum pieces to take 20 lbs of unsprung mass out of each corner...or 80 lbs of unsprung mass out of the car.
The new rear upper control arm is 1/2 the weight of an original and is completely heim-hointed for smooth action under loads with no binding.
David
Jamo, just think, I could have gone faster up Squaw Peak...all those aluminum pieces would have compensated for our "extra" weight.
