I just was reading this,
Changing your Tire Size:
Another way to effect your performance is to put a smaller or larger size tire on your vehicle. The stock SC (with an Automatic Transmission) is equipped with 3.27 gears and 225-60-16 tires. This tire size has a approximate tire height of 26.63 inches. Just by changing the rear tires to 225-50-16 you drop the tire height to 24.86 inches. This drops the outside diameter of the tire -1.77 inches and in effect give you a shorter gear which will give you more pulling power out of the hole. But beware, it will also give you more tire spin as well.
It is off a performance website. So with putting on these tires, it will shorten my gears. Is that true?
1995 Pontiac Bonneville SLE (the black one)
Old NA Setup with ER Rockers
PB 15.132@ 92.942 PB 60' 2.269 PB 1/8th 9.7000
1995 Pontiac Bonneville SE (the white one)
Up and Running (Thank you Bill for all your help)
GT1 cam, 105 springs, ect, Ported LIM, Powerlog V2, CAI, Waterpump underdrive pulley, A/C Delete, cooling mods, yea the works
In Modding heaven with ZZPerformance