Hello Im new and need advise!
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Hello Im new and need advise!
My name is Mike Im from Southern CA I have a 95' pontiac supercharged SLE engine mounted in my offroad car so I cant tell you how fast it is in the 1/4 or what kinda stereo I have but with all the smog BS and the factory computer replaced with a link system I made 292 hp and 342 lbs or torque I bought the engine this way it runs good but Im going to upgrade and have some work done like a custom exhaust made, bump0 up the timing install a new cam, and wanted to know if going to smaller puller is worth it its already so small compared to a series II, so any help would be great, Thanks Mike
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yeah Im trying to get some pics up so you guys can check it out I saw one guy was running a 2.0 pulley is that to small and will it slip on the belt at high RPM'* remember my computer is totally tunable via lap top so I dont have to worry about running into a lean condition whats the stock boost and how much boost are these SC capable of running? I want to get the right one Im going to dyno the car in about a month and I want the right pulley to see a decent increase in hp, Thanks Mike
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Anything smaller than 2.5 is gonna cause knock, and get into the heat-loss inefficient zone of the M62. Your performance will actually decrease at a certain point if you go smaller.
If you're worried about belt slip, do what I did. Go to www.zzperformance.com and buy the oversized idler pulley. It'll give you a little extra belt wrap around the smaller pulley, and helps you keep the stock belt length.
If you're worried about belt slip, do what I did. Go to www.zzperformance.com and buy the oversized idler pulley. It'll give you a little extra belt wrap around the smaller pulley, and helps you keep the stock belt length.
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Originally Posted by willwren
Anything smaller than 2.5 is gonna cause knock, and get into the heat-loss inefficient zone of the M62. Your performance will actually decrease at a certain point if you go smaller.
If you're worried about belt slip, do what I did. Go to www.zzperformance.com and buy the oversized idler pulley. It'll give you a little extra belt wrap around the smaller pulley, and helps you keep the stock belt length.
If you're worried about belt slip, do what I did. Go to www.zzperformance.com and buy the oversized idler pulley. It'll give you a little extra belt wrap around the smaller pulley, and helps you keep the stock belt length.
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Originally Posted by willwren
Dirty, I run a 2.2 because my stock pulley was a 2.55". That'* true for the 92/93. 94/95 had a 2.85" pulley stock.
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If you're running an intercooler, you could go smaller, but remember, the wear and tear on the SC is dramatically increased at the higher rpms.
Stock boost should be about 8-9psi at WOT. You should gain about 2 psi going from the 2.8 to the 2.5. Roughly 20-25 horsepower.
Stock boost should be about 8-9psi at WOT. You should gain about 2 psi going from the 2.8 to the 2.5. Roughly 20-25 horsepower.
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