Tire Pressures for Star Specs

[E30Gus]

I target 28psi hot so depending on the temp that day and driving style cold pressure might be around 24psi. I don't have a lot of experience but for HPDE's that is what has worked for me. A long race may be completely different. As the day goes on I usually have to let some more air out as the track temp increases.

[DirtE Thirty]

Have Dunlop Star Specs mounted on 15x7 wheels on our E30 project for chump car. Looking for advice on what people are using for cold pressures on these tires for track use. Thanks