Got an appointment for alignment Thursday, and hoping to road-trip her 300+ miles this weekend, so don't want anything to go wrong at the alignment shop. What should I check or do to make sure it comes out right?
I'll be streeting the car, autocrossing a lot, and doing some open track running when I can. I plan to set the front at 1/16" toe-in, -1 degree camber, and 4+ degrees caster; rear at 1/16" toe-in, -1 degree camber. Here's the way the car sits right now:
-front ride height 4 1/2"
-rear ride height 4 3/4"
-front adjustable upper a-arms mounted in outboard hole of mounting plate, Factory Five tubular lower a-arms. Rear IRS.
-275/40 17" Toyo Proxes RA1 on all 4 corners, on Cobra R wheels with 5.95" backspace
-600# coilover springs all 4 corners
-P/S with adjustable valve
Concerns: 1. Front tires are pretty wide! The outer edge of the tire extends slightly past the fender lip. I'm thinking some negative camber will help, but don't want to use the inboard a-arm mount holes cause the camber would presumably end up too extreme for the street.
2. Rear-most mount for lower a-arms up front don't look quite right. There's a slight deviation from perpendicular to one of the plates on each side...I don't think the steel bushing running through the poly a-arm bushing is seating properly against the mount plates on each side. I'll try to find the old thread on this topic.
3. Rear track looks a little narrow. I can easily come out 1/2" further on each side without body interference. Is it safe to extend the rod ends an extra 1/2"-3/4" to effectively lengthen the rear control arms? They're already extending 4-5 threads inboard of the locknuts.
Any suggestions or improvements will be greatly appreciated. It actually drives pretty nice right now with my "eyeball alignment" but those tires are too nice to mess up! Thanks for your help.