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Will a 4lb Lower pulley work with a KB?

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Old Nov 12, 2007 | 02:18 PM
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seattlesnake's Avatar
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From: Everett, WA
Will a 4lb Lower pulley work with a KB?
I am having a KB 2.3 installed, but my current config uses a 4 lb lower blower pulley. Can I keep it, or does the stock pulley need to be replaced?
 
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Old Nov 12, 2007 | 04:26 PM
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From: jersey
Yes the 4# can stay - hope you have atleast a built bottom end
 
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Old Nov 12, 2007 | 07:46 PM
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From: Myrtle Beach, SC
Originally Posted by mike00L
Yes the 4# can stay - hope you have atleast a built bottom end
Keep the 4# and just stick a big upper on the KB like a 3.2 or 3.5. I plan to do this (along with upgraded MAF, pumps, and injectors) and I don't have a built bottom end.
 
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Old Nov 13, 2007 | 02:04 PM
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Yes, of course you can ! Just get a good tune.
 
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Old Nov 14, 2007 | 09:38 PM
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Stick a 3.5 upper on it and re-tune..
 
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Old Nov 14, 2007 | 11:39 PM
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From: lexington ky
2.3 whipple with 4lb lower and 3.375 upper = 16.5psi

safe tune and you will be okay
 
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