Here are some rough targets for the main tire groups. Formula Cars (IndyCar, FX, FA, FR3.5): 1.7bar front / 1.45bar rear (24psi / 21psi) at road circuits. The Dallara IR-12 oval/speedway tires like up to 45psi on the right side. Modern GT & LMP: ~1.8bar front and rear. Maybe down to 1.6bar...
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