I ran T1Rs at the last event and they did pretty good, 245-40-18 and 265-35-18.
I'm looking at doing 275s all around on a set of CE28Ns this coming season, then again my car has absolutely nothing inside it now and lost about 350lbs over winter. I am going to have to recalibrate everything once I roll her out of the garage spring time.
1st official 5th gen dedicated time attack car

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Mike Jez

2004 Volkswagen R32.
OZ wheels, tons of suspension mods, brakes, go fast & light goodies.