cbuzzetti wrote:
Alignments are nearly identical. 1/8" to 1/4" toe out in front depending on track. Zero toe in rear.
New car has Guards LSD old car has Phantom grip LSD (not really an LSD) but they call it one.
New car does not have rear sway bar connected, front set at mid point (Weltmeister bars).
Old car has same bars and both set at mid point.
New car is lower by at least 1" (most likely factor for better handling)
New car is lighter (60+ lbs) so has better weight displacement (lower).
New car has narrower track???
New car has some stock bushings. May not be producing bind in suspension???
Ok,
My guess... LSD with no rear bar. With a soft rear the car will hook up well on corner exit. The LSD will also help put power down. Now the strange thing is that this should create understeer power on at corner exit, but toe settings may help that. Front toe out and rear zero toe should make the car oversteer on turn in. However the LSD and soft rear bar counter that.
What at the spring rate? 30 mm rear I assume and what up front? How are the camber settings.
BTW... On my car if I go full soft on rear bar it hooks up great on corner exit, but also pushes like dump truck. Net result is slow lap times.
My car
350lbs / 30 mm, Open Diff, Welt front & rear, zero front toe, 1/8 rear toe in. 4" ride height. 3.5 deg front 2.1 deg rear camber.
I have urethane rear bushings with stock rubber on the trailing arm and in front red urethane at the cast block and delrin at the crossmember.