94 SC on a 92 Pulley swap - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


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Old 06-17-2004, 10:06 PM   #1
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Default 94 SC on a 92 Pulley swap

For a while I've had a 2.25" pulley on the 94 SC that I put on my 92. Call it a test run. Well, I put the stock 92 pulley back on it. It made a great difference in top end. Low end torque suffered a little bit, but is much more happy above 3000 rpm.
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Old 06-17-2004, 10:45 PM   #2
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With the 2.25 pulley on a 94 or 95 SC, you get into the heat loss zone where the SC is running very inefficient at the higher RPM'*.

Unless you find a way to intercool or water inject, always stick with the Stock 92/93 pulley size on a 94 or 95 SC, never smaller.
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Old 06-17-2004, 11:12 PM   #3
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Yeah, I know, but I thought I'd give it a try. I can still peg the boost gauge, so I know I'm still getting more boost.
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