I saw this in an old thread, the following quote is from Roland at GT Tuning:
''PRESURES I reckon with the TOYO's, on the track (cold reading) about 30psi front
and 24 psi back. That will not be far off. Let about 4 psi out the front after first session.
Best Regards Roland Gt Tuning''
I read this before the track-day, thought it was a bit low so went for a happy medium. I was running 30psi front and 28psi on the rear (cold reading). Traction seemed pretty good for me at Bruntingthorpe and tyre wear was about what I expected
Mark