Camshafts, idle quality, driveability and LSA-REAL WORLD EXP and OPINION

yellow rose said

BTW, overlap is critical. Never said it wasn't. There is so much bullshit being posted, like moving the LSA by moving the exhaust lobe. Who does that, and why?

Does anyone change the ICL and test that? I have. It show exactly what I say it does. Advancing the cam closes the intake earlier, thus, increases low speed power and increases idle vacuum.

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I've tested advancing the ICL many times in an effort to build score for the EMC--guess what? It shifts power curve down and lops it off at the top--predictable-big deal. It doesn't help idle vac that much either, ever record it after moving the ICL? It also doesn't build score in case like EMC if you get cylinder pressure too high either but I'm not getting into that here. J.Rob