I didnt see where you said the total weight as you leave the line.. any tire will run best with a certain
pressure for a given weight.. my car is light and I run 6.5 to 6.75 PSI and above that it spins.. you should
start with GOOD tires not some set thats been on it for 10 years.. you would be using that as your
zero point which could be wrong to start with.. tires dont last as long as people think.. on mine
the tire is pretty well shot at a 100 passes then the 60' starts falling off.. I could tell by the 60' numbers
the side walls would be shot.. that was with tubes to help stiffen the side walls.. to look at the tire it
looked fine and had plenty of life let in it.. I use to sell them off.. my 60' would range from 1.19 to 1.22
then I got a new set.. there is no reason for a big burn out.. that just burns up the tire.. just needs
to get a light bit of smoke to clean and warm them up.. so start fresh and dont waste your time
trying to tune the suspension which comes next