01-20-2021, 03:01 PM
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CC Member
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Join Date: Feb 2006
Location: Gilroy,
CA
Cobra Make, Engine: SPF 2291, Whipple Blown & Injected 4V ModMotor
Posts: 2,645
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Not Ranked
Quote:
Originally Posted by joyridin'
It is higher than 9:1. I think 12.5:1 is not realistic either, but 10.5:1 or even 11:1 with what he has is very realistic. He said he had 12.5:1 pistons, but did not actually say the cr was 12.5:1. I doubt if he could massage those "factory castings" (head) as he states a few times, to get the cr down to 9:1. They don't have enough material on them. If he cranks that blower to 22 psi, he better start mixing that C16 with Nitro. Guys are running what he has in LS engines right now getting about the same HP if not more, but they have about a zillion intake/cam/head options.
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Read the postscript I added to my post for more about the why for aspects while you were posting.
Ed
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