Quote:
Originally Posted by camcojb
I would think you'd have exhaust heading back past the surge valve into the intake. Besides the heat going back into the intake, exhaust doesn't have oxygen and would be diluting the incoming air with something that won't burn.
If you're going to divert it, either divert it into the intake system somewhere or run a tube down and out of the engine compartment so you don't hear it.
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I thought about the exhaust heading back up to the intake, but when the valve is open (cruise) the outflow is very high. I have to believe this will overcome any exhaust, which at cruise should be less than 1 psi. Under boost (in my case about 20 psi), I can't believe the exhaust will be much more than 1-2 psi at full throttle. The valve is closed at that time anyways. Maybe I'll take some back-pressure measurements before I proceed.