Tire pressures are also a characteristic of the tire and what it's being used for. Different tires have different properties that require you to adjust pressure based on track conditions, temp, and setup. Dunlops have much stiffer carcass than Pirelli and therefore you need to make adjustments to compensate. If you can't adjust suspension you can adjust pressure and deal with higher tire temps. Contrary to what you think and have posted pressure is set according to the required temperate on the track. Lowering the pressure in a tire provides more heat, if you need to cool the tire down you add air to it. You move the pressure to keep the tire at optimal temperature at the track. Our tires come off the warmers at 180 degrees and it's not uncommon for them to come off the track at 200-220 degrees. You seem to think pressures don't change when tires heat up? A cold tire set at 32 psi will be at 36-38psi off the warmers, off the track will be even higher. If you don't think a 15-20% change off the warmers is a lot you again are confused, and it would be even more off the track. Keep it all coming.