I need a good starting point for the air pressure. The Toyo RA1's are 205-40-17's mounted on 7.5 x 17" rims (shaved). My setup is... -2degs front camber with 1/8" toe out and -1.5degs rear camber with zero toe.

Thanks for any help.

 

check out this site http://www.toyoracing.com/TireInfo/RA1_tires.asp

 

My starting point was 36 front ,34 rear when cold .

Randy
M7 Tuning

 

Thanks to both.

 

That's going to depend on ambient temperature - are you starting at 40F or 90F? - and purpose - track, where the tires have time to heat up, or autoX where they don't much.

Neil
05 MCS
96 M3

 

This will be for track days with typically 15 to 20 min sessions. With my street tires I would look for 40 psi hot, measuring just after the session ended. I plan on starting at 36 cold and then go from there.

I trial fit the RA1's tonight, they are much shorter than my street setup, 215-45-17. Funny looking but if they work, who cares?