Toyo triple 8's should not be allowed to get over 40 psi when hot. They'll get greasy at this point. A lot depends on track temp and turn configuration (amount of scrub due to turns). If it's morning, I'd start around 30 - 32 and see how they heat up after the first session. Then adjust from there during the day. I run these Toyo's on my E36 M3 track car and love them.
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