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3.5 vs. 3.4 vs. 3.25 vs.3.0 pulleys

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Old 05-22-2007, 03:14 PM
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Default 3.5 vs. 3.4 vs. 3.25 vs.3.0 pulleys

Can anyone tell me the major differences between pulley sizes:

What other mods are required, hp gains, etc.

I have 3.5 and want to know what is the benefit of going down to a 3.25 with my current mod list? Are there trade offs to downsizing the pulley?
Old 05-22-2007, 03:21 PM
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looks like 3.5 may be your limit till you do something like rockers, pems, fwi, etc. I run a 3.4 with rockers and fwi, only using a 3.2 for racing. If you don't get more air flow, you will get kr and defeat the purpose of a smaller pulley (to push more air)
Old 05-22-2007, 03:24 PM
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Even with the Intense PCM?
Old 05-22-2007, 03:31 PM
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You may want to check out our performance packages at

http://www.intense-racing.com/Mercha...ategory_Code=P

The various mods show what is usually necessary for various pulley sizes to a point.
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