Looking around various sites at the vortech, I did notice that it does have pulleys available for the V2 SQ supercharger. I know that it does void the warranty if you put a different pulley on the car. The vortech comes with a 6-rib 3.33" pulley with the Z, here are what is listed on their site:

P/N 2A036-262 Supercharger Pulley, 2.62", 6-Rib
P/N 2A036-287 Supercharger Pulley, 2.87", 6-Rib
P/N 2A036-312 Supercharger Pulley, 3.125", 6-Rib
P/N 2A036-325 Supercharger Pulley, 3.25", 6-Rib
P/N 2A036-333 Supercharger Pulley, 3.33", 6-Rib
P/N 2A036-348 Supercharger Pulley, 3.48", 6-Rib
P/N 2A036-361 Supercharger Pulley, 3.60", 6-Rib

Of course, smaller pulleys mean more boost. Any ideas on the boost levels from these pulleys on the Z??

 

Does anyone know the answer to this??

 

I don't know the answer but I wish I did.

--Steve

 

I would guess 6-12lbs