Cody, did you change to a smaller pulley?

[WheelStander]

Anyone running a smaller pulley on the Vortech 7-9 pound supercharger?

[Slow2V]

Originally Posted by WheelStander

Anyone running a smaller pulley on the Vortech 7-9 pound supercharger?

Idk If you can do that on a vortech
I know its possible on a twin screw root supercharger or any roots..

Smaller pulley.. More power
Google it

[WheelStander]

Yeah looking for numbers yielded with smaller pulley.

[Mzilla]

Originally Posted by WheelStander

Yeah looking for numbers yielded with smaller pulley.

The Vortech HO kit comes with a 3.33 pulley. I had a 2.95 pulley and was making 449rwp/404tq When I started driving the car more i put a 3.125 pulley and it made 429rwp/400tq. The funny thin is that it made 7 more ft/lbs of torque upto 4500 with the larger pulley. This was all with stick Bottom end.

[CodyNelson]

I have switched to a smaller pulley. I went from a 3.33 pulley to a 3.12 pulley. I also replace my stock tensioner. I went from around 8psi to right at 11psi. I don't have any actual numbers for you, but after getting a new tune from my tuner he said that I am sitting around 410hp and 425tq at the wheels. The swap made a nice difference. On top of the extra psi I now build boost around 800rpms sooner

---------- Post added at 04:12 PM ---------- Previous post was at 04:10 PM ----------

Those numbers are up from the 370/380 I put down about 6 months ago

[WheelStander]

Thanks guys that's the exact info I was looking for!!!

[CodyNelson]

Originally Posted by WheelStander

Thanks guys that's the exact info I was looking for!!!

No problem, glad to help!