My friend has the 555R's on his supra, as well.
I don't know from him exactly, but at running 3psi more than stock, he slides down the track with the ass end hanging out.

I'm not really dissing them, i'm down on the fact that i have no type of limited slip.
My best 60' time with them is 2.5.
But like i said earlier, my average 60' times in 55 degree weather, with a full burnout, on 225/50R16 (discontinued) 555R was 2.8.
THey would be great if you were n/a though. I am sure that they would be excellent tires, but i'm holding out for the Quaife next spring.


Jon

1997 Eclipse RS

13.887@104.648 5/30/03

www.haiokuracing.com