anti-lag

[dennis]

Boy, I seem to have really sparked something with my last question about anti-lag systems. Thanks to everyone for all of the input. My brain hurts now though:)

Well, here goes again. Does anyone know if there is a formula for figuring resonant pulse(ram) tuning in the intake manifold of a supercharged engine? What differences would there be when the manifold is under positive pressure?

I'm trying to build an intake for a turbocharged 2.5l Chrysler engine and I can't decide on runner length or plennum volume. Formulas exist for figuring atmo engines, but not supercharged ones. And since this car already leaves the line with 9psi of boost off of the brake, these formulas don't do much good. I know that air temperature is part of the formulas for the N/A engines, but would there be any other variable in the equation resulting from the boost?

TIA

dennis

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