C5Lion

I just bought a new set of Hoosiers for my C6Z06 and thought I ordered 295/30/R18 tires but there was some confusion with my tire guy and he actually bought 285/30/R18 tires. I also purchased a 345/30/R19 tire for the rears.

Is there problems running the 285 and 345 combination on stock wheels and trying to run in competitive mode? I normally like to have this safety blanket. The diameter difference is between front and rear is now 1.9" as the 285 has a dia of 24.9 and the rear is 26.8.

Bill Dearborn

Shouldn't be an issue. It is just below a 3% difference from the stock set up. What you thought you were ordering would have been only 1% off but 3% will work. There could be slight chance of early activation of drag control but that is the addition of more throttle to keep the rear wheels from sliding on slippery surfaces under quick throttle lift conditions. Could have a slight affect on engine braking.

Bill

shifter77

At high speed engine drag will appear on dash @ 1.9 . I was told NO HARM is done. I run the oem sizes.

drivinhard

the 285 hoosier is slightly wider on the tread than the 295 to