Quote:
Originally Posted by j-rho
Both on Bridgestone RE-71R.
Pressures depend a bit on the rest of the setup. A stock no-camber car with a 275 stuffed on a 9, will need a lot more pressure than my STR car with -4 degrees and a 245 on a 9.
I've heard some advise to not go below 35psi with the Bridgestones. I ended up with low 30's front and high 20's rear but again, everyone (and every surface) is different - gotta experiment for your sitution to find what's best.
38/35 seems like a safe starting point.
To me, the Bridgestones are head-and-shoulders above everything that was already out - R1R, RS3v2, Z2*spec, etc. However there's still the BFG Rival-S and Kumho 720 to learn about - the former has started shipping and the latter is supposed to this month.
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What j-rho said about pressures being car/setup specific.
On the 350 STU car we have 275s mounted on 11" wheels with -4° camber, so obviously a different situation compared to the same tire mounted on a 9" wheel with -.7° camber. We were running 30 PSI and weren't even getting close to the arrows/triangles on the sidewall.