Quote:
Originally Posted by 68454RS
What wheel / tire combo do you plan on running? I'm running 255/40-18 & 325/30-19 Michelin PS 4 S
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Last year I ran General G-Max tires - 225/45-18 front and 275/40-18 rear. My wheels are Ridler 607's - 18x8 F 18x9.5 R
I based my front tire size on what I'll call a street alignment - just a small amount of negative camber. Lesson learned, this was a mistake. When I had the car re-aligned with something that would work better at autocross (-1.5 degrees of camber) a 245/255 should fit now on the front. Have not decided on a tire brand for this year.
Out back, 295 should fit now. I pushed the wheelwells in an inch (cut them out and recessed) and had the rearend narrowed to center the tire. My rear shocks are still in the factory location. The rearend is a GM 8.5 out of a 73 Z28, factory posi with 3.42 gears. When it was narrowed, the axle tubes were welded to the center section and I upgraded to a Yukon posi with moser 30 spline axles.