Cody, did you change to a smaller pulley? - Mustang Evolution

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Old 08-18-2012, 08:09 AM   #1
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Cody, did you change to a smaller pulley?

Anyone running a smaller pulley on the Vortech 7-9 pound supercharger?
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Old 08-18-2012, 09:33 AM   #2
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Quote:
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
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Old 08-18-2012, 10:54 AM   #3
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Yeah looking for numbers yielded with smaller pulley.
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Old 08-18-2012, 11:12 AM   #4
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Quote:
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.
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Old 08-18-2012, 03:12 PM   #5
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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
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Old 08-18-2012, 05:51 PM   #6
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Thanks guys that's the exact info I was looking for!!!
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Old 08-18-2012, 05:55 PM   #7
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Originally Posted by WheelStander
Thanks guys that's the exact info I was looking for!!!
No problem, glad to help!
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