More air to start, the temps/pressure will rise exponentially.
I am surprised you only went up two degrees in a twenty minute session in 80 degree weather, regardless of starting psi.
You got it!
With solid subframe bushings I address the first two products listed below correct? If solidly mounted, do I still need an IRS subframe support brace?
Toe links are toe links and provide adjustability, for contact patch but nothing really for solidifying the rear end.
Monoball LCA bushings...
If I do vertical links, solid subframe bushings, solid rear diff bushings and switch to front and rear lower control arm bushings to moniballs will I have achieved all parts necessary to “stop the hop”?
Apologies if this has been covered, but a lot of it seems like gimmicks and run around...
Understeer the front pushes in corners, oversteer the rear comes out in corners.
The higher pressure will work to reduce grip in the rear inducing oversteer.
You should monitor your tire pressure at the track. I usually start the day around 30 PSI. Starting at 42 PSI, by the end of the session...
Not sure what street class means, but I think you can get negative two degrees with camber bolts and definitely with camber plates. I currently run negative two degrees with MM camber plates.
I don’t have a point of reference for a GT in auto cross or on track so I won’t comment there.
Most prefer roll racing anyways so I imagine that will continue. The best would be if road courses open up a straight away for drag or roll racing. One track outside of DC does this Friday nights for $20 or $50. You can select who you run against and do roll or proper drag racing.
I just went to the track with SC3Rs in a 305 square set up and it certainly helped with understeer a bit. The car rotated better and just felt more balanced.