Thread: Engine talk
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Old 12-07-2022, 03:37 PM
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eschaider eschaider is offline
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Cobra Make, Engine: SPF 2291, Whipple Blown & Injected 4V ModMotor
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To the OP,

If you want one of those '60s rock and roll sort of performance car idles, you can do it by tightening up your camshaft's lobe separation angle (LSA). Go down to a 104 to 108 LSA (104 on a SB nd 108 on a BB). You'll get a 800 to 1000 rpm rock and roll sort of idle. Be prepared to keep the engine speed at or slightly above 1800/2000 rpm driving with that kind of idle.

CompCams has several grinds specifically designed to do that. They call them mutha-thumpers.
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Last edited by eschaider; 12-07-2022 at 05:04 PM.. Reason: Spelling & Grammar
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