Quote Originally Posted by tbs23 View Post
Best rib supercharger belt i have ever used is a Goodyear GATORBACK belt. It also has a 45 deg cross cut across the normal belt grooves. This allows the air to escape between the pulley and the belt, stopping the belt lifting off the pulley. This is why you hear belt slip at high RPM only, the air is getting under the belt.
Using a gator belt i have been able to run an extra 2-3 psi on a 6-8 and 10 rib belt system, after changing the blower pulley only.
Tightening the blower belt like a piano string only damages the blower bearings.
6 rib good for 6-7psi
8rib 7-9psi
10 rib 8-12 psi.
The best drive is Gilmer or tooth drive, but hard on the pulleys and belts.
x2 on the Gatorback, noticably quieter at idle as well