I have 19" 2007 corvette c6 wheels with 295/35/19s on the rear.
27 inches in diameter.
I tried 27/4.1 and let it commit and the speedo is still like 12 mph too high when im driving.
i have 4.10s in a 98 Z with these wheels. What value should I enter in the newer hpt beta to get the speedo right?
Thanks,