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Originally Posted by Nissan370
Ok change of plans after talking to the guys over a je imports going with the stillen supercharger they even gave me a $500 buck discount so money talks lol....
From looking at the kit I can't tell the size of the pulley that comes with it. But I know vortech has a nice number of pulleys for the v-3 same as my v-2 on my mustang I am running a 2.87 on that......but I am also running a larger crank pulley on my mustang
I wonder if that pulley next to the supercharger pulley on the back of that bracket could be increased in size to turn the supercharger pulley a little faster just a thought
Ordering the stillen hfc also
Stillen supercharger + stillen hfc + ark cat-back exhaust will be tuned by the guys a je imports coming soon
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The pulley that is normally swapped out on the Stillen kit is the one on the front side of the bracket that is run off of the main belt (via the crank pulley) although I am sure that you can swap any of the 3 pulleys (front side drive pulley, jackshaft pulley or supercharger drive pulley) to get what you are looking for.
The standard pulley that comes with the kit (approximately 8 PSI at sea level) is right at 3.125 inches (I have that one sitting here on my desk). The Stillen replacement pulley that provides around 9 psi of boost at sea level is right at 2.9 inches (that one is on my car now).
I am thinking of swapping it out for something around 2.5 inches as I am at 5400 feet ASL here in the Denver area and am only able to make 7.2 PSI out of the 9 PSI puley. As you stated, Vortech has a good selection of replacement pulleys and 928 Motorsports also makes a nice selection of replacement pulleys.
Good luck and I hope that you have the same good experience that I have had. The custom tune is definitely the way to go.
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2008 G37s 5AT, Stillen SC, Stillen CBE, Stillen tranny cooler, DBA 5000 front/4000 rear, Stillen sways, Tein SS-P coilovers, SPC front & rear control arms, Goodridge lines
Last edited by dal1307; 07-13-2011 at 01:22 AM.
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