I cut a 1.91 60ft with stock suspension on Firestone Sz-50's. That tire was pretty stick for a regular radial. -Mark

 

The Nitto 555 ZRs grip better than the Pirellis I had... They're 300 treadwear by the way.

 

i got a 1.94 60 ft on stock suspension and some 225 55 16 futura ultra z's (cooper cobras) .......


i've always liked the cooper cobras myself, i think they make a great street tire.......... i cant say they are that good at the track, but i've done well with them......... for what you pay, and how long they last, and they corner well......... ya can't go wrong with all that.......

 

I have a pair of 265/50/15 cooper cobra's sitting in my garage right now .. I think you just convinced me to take off my bald bfg comp t/a's