What cold and hot tire pressures work best on these tires???

 

I like them in the 34 to 36 range HOT.
But it's all driver preference.

 

Not just driver preference...driver speed, too. If you have more grip on the last lap than you did on the third, you should add more air. If you have less grip on the last lap than you did on the first, lower the pressures. Make a mental note of what the outside tires are doing during turns as you rack up laps. At the end of the day you should have your left/right/front/back all set up so that you're not too squirmy in the first few laps and not too slippery in the latter ones. Measure 'em hot and then measure 'em cold and write down the PSI in each tire so when you show up at the track the next time you don't have to f around.

 

[QUOTE=Nobody,Jun 21 2007, 09:12 PM] .

 

my thought precisely.

 

These are my first set of r-compounds. I got the 245/275 set up. I will let you know how they turn out. I previously had Neovas 225/255 and they were good but I felt there was too much spring for them (tein SRC). So the NT-01 will be better suited. Most people run around 36 hot on the RA-1.

 

My understanding is the Toyo R888 is the same compound, just different tread design as the NT-01's, not the RA-1's.