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Discussing 4" down to 3.75" .... what gain??? in the Poweradders Forum. I have a KB 2.6l and just installed a 3.75" pully. I ...

       

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Old May 7th, 2008, 09:59 PM   #1
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4" down to 3.75" .... what gain???


I have a KB 2.6l and just installed a 3.75" pully. I don't have my boost gauge
hooked up yet so I don't know how high that will take me... also I dynoed at 455 rwhp with the 4" pully and where will I be with the 3.75
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Old May 15th, 2008, 08:53 PM   #2
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on a dynojet around 500 rwhp and on a mustang dyno 470 rwhp

should make 10 psi. unless you have headers then around 9 psi
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Old May 15th, 2008, 08:54 PM   #3
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a boost gauge takes like 30 minutes to install man..
DO IT!
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Old May 15th, 2008, 08:55 PM   #4
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haha, I was thinking the same thing I just didn't want to tell him to get off his lazy ass and put it in.
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