INTERNAL ENGINE MODIFICATIONS Valvetrain |Heads | Strokers | Design | Assembly

Anyone hear running 11.25:1 or higher on Pump Gas DD?

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Old 12-26-2009, 07:57 PM
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I'm going turbo it's a moot point. I'm looking for some stock 317s to bring my compression back down.
Old 01-05-2010, 09:28 PM
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More duration bleeds off cyl pressure period.
Tight LSA builds cyl more cyl pressure.

Two main ways to bleed off cyl pressure is increase duration or increase LSA.

I have 11.5:1 on 93 octane and have 40k miles on it as a DD. Specs in the sig.
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