Tyre pressures on track?

[Braderz26 0]

I got a track day tomorrow 🤗 just wondering  roughly what temperature people run them (hot) my tyres are  Michelin PS4 

[VAD17 479]

I got a track day tomorrow just wondering  roughly what temperature people run them (hot) my tyres are  Michelin PS4 

Temperature or pressure?

If pressure I typically drop to 32 psi after sighting laps, then drop again to 30-31 after 1st session and keep checking so it does not go above 32 ish.

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[Church 209]

Without thermal probe to compare temps of inside vs outside of tires most often i keep stock pressure, and letting out excess from tracked hot tires to revert to that. Exception being when i used tire pressures aswell to change grip front-rear bias back then during very first trackdays when i still had stock alignment (imho too understeer-ish and certainly of not enough static negative camber for track). Then i lowered pressure in fronts even more, to add grip there. Cheap tire pressure gauges are .. well, cheap, and at most fuel station stores. If you haven't one, buy one and let out excess from overheated tires as you track. Remember to pump back after end of trackday though.

[Braderz26 0]

Ok cheers guys, I’ll give that a go 👍

[Leeky 84]

Same. I usually drop them to 32psi after the sighting laps and then monitor every so many laps afterwards to try and keep them all in the low 30’s

[will300 812]

I generally run them at around 30PSI when hot on track. 

I will also check the pressure every couple of sessions.