I had already installed a Unorthodox Underdive pulley on my xB when I bought the Greddy Super Charger so I have been driving with it for some time now, I bought a Perrin Pulley (not underdrive) the other week and got it on yesterday....what a difference went from 5lbs to 8lbs boost it like I added another cylinder my box is now almost fast.....I like it!!!!!!

Allright Rocket, glad to see you are still around, thought you had runoff and bought a Mustang on us.... :rofl: Glad to hear the pulley helped with some more boost, i thought you recieved that perrin pulley awhile back, but you were part of the GB that went bad, weren't yeah.

u sellin the underdrive pulley?

Yes I was part of the group, but I got my money back and was very happy with the way it was handled. I am in business and I know things don't always go as planned or promised by suppliers. Yes I do have the Unorthox pulley for sale $ 100.00 shipped to your door.

I had already installed a Unorthodox Underdive pulley on my xB when I bought the Greddy Super Charger so I have been driving with it for some time now, I bought a Perrin Pulley (not underdrive) the other week and got it on yesterday....what a difference went from 5lbs to 8lbs boost it like I added another cylinder my box is now almost fast.....I like it!!!!!!

Good to hear Rocket... The perrin lightweight pulley mixed with the Greddy S/C really packs a nice punch from what I've seen in testing..... You can definately get some more boost out of the S/C with this thing.... Now go get it re-tuned make sure you are running high octane, and low step sparks and you're good to go.. spend the $ on the tune and you'll feel it even more guaranteed... :)

I am sure if you look around there are blower pulleys that will fit to give you any multitude of boost options. Check out pulleyboys, they might have ones that will work with that blower.. email them and ask.

hey have you exprianced any shearing of the crank pins with the new pulley i read some where where guys were having this problem.. i dotnk ow if it was withthe greddy or the blitz

I would think this would be hard to happen if the crank pulley is torqued to spec. I have had 3 different crank pulleys and no problem with any of them.