I just rebuilt the top end of the engine recently and put in a boost gauge and it makes about 12-13psi. When I measured the outside diameter of the pulley it was about 2.6" which from research should be the stock one, although research also shows the supercharger only makes 7-8psi stock. Anyone...
This might be helpful for all Nissan Frontier with Engine VG33ER supercharger is the same unit found on buick, Pontiac, olds 3800 series engine. Some part may be different but the service procedure remain the same.