Hey guys, just got the hypertech, I changed the rims and tires on the truck, how do I calculate the ride height for the truck now. I have 285/50/20 do I put in the size of the tire at 31.22 inches or is it something else?

 

height of the tire..lift doesn't affect the rate at how many times it spins in "x" amount of time. be careful..my superchips say stock was 28.0 or something and OEM was 29 (245/65/16) when I changed it it was off so I just went back to where I started. Worst case my truck is putting on "less" mileage on the odometer and I think I'm going slower than I really am

 

Measure the actual tire from the ground to the top of the tire. Use that measurement.

 

thanks guys