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SS_Firehawk

Reducing the duration will increase pressure because less air is being blown through. With boost pressure just being a measurement of resistance, being able to modify how far and long the intake valves open should effectively change how and when the superchargers are reaching peak efficiency. The problem is there is too much overlap. The combustion process is still happening as usual, it's just when both the intake and exhaust valves are open, it's open for too long and reduces pressure. Getting more pressure built up on the intake side should allow more air to be pressurized in the combustion chamber when the intakes do open. Sorry if I'm talking in circles, I'm just trying to hit all the angles.

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Sh0velMan

You could, in theory, make a funky intake cam profile that would work under boost, the problem is that it would be awful off of boost. Like, be a total misery to drive at anything less than 3/4 throttle and up.

Retarding the intake opening would make for some serious drivability issues, if taken too far (read: far enough to make any difference).

This is all in my estimation, so feel free to prove me wrong, GTM!

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