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

yellow rose said

Then the discussion is worthless. You can't parse out bits and pieces and get the whole picture. And to say moving the ICL is a crutch is not 100% true. It has been my experience if you have to move the cam more than 4 degrees to make it work, your cam timing is wrong to begin with. The 4 degree ahead bullshit is another COMP brainwashing marketing trick. The only reason to run the cam ahead is timing chain stretch. Comp made it something else.

So if you limit the area of discussion you can never learn. Cylinder head flow has as much to do with cam timing as anything else. You are making LSA the straw man for poor reasoning.


RRR actually gets it.

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If you have to move your cam more than 2 degrees to get what you want-whatever that is--it's the wrong cam! I agree with you there. To be clear I'm no fan of Comp but I do use them for custom 'cuz I email the form and get my cam a week or so later the way I want it--no questions asked. For catalog grinds I usually turn to Lunati.

Not trying to limit the discussion at all but to introduce cylinder head "tricks" into this will convolute the whole purpose of the thread so fast it would be crazy.

I'm actually a fan of tight LSA's as they tend to produce such a huge wallop of midrange power its hard to argue with them. For the bulk of my customer base I'd say less than 5% can actually tune and set up their vehicles to handle a tight LSA and the radical idle and "light switch" power delivery. I'm also getting older and don't care for coming to a stoplight with both feet working the pedals-unless its a stick. J.Rob