Prolene

It's been a matter of trying to get the best pressures for this car. This is measured by driver subjective impressions, tire temp across the tread as measured by ir pyrometer, appearance of scuff marks up the shoulders, etc.

I really think the sidewall is fairly stiff with 255/45/17 and these low pressures really do not seem to be a detriment. The car at last feels too stiff on surface roads with the Mugen suspension when going to the Kumhos.

It could be slower speed turns at more sustained higher g forces might require higher pressures for my car such as on autocross courses.

Maybe as track times improve, I will need to see higher pressures.