Originally posted by grippgoat:
Or are my layman's physics getting me in trouble again?
-Mike
Nice analogy. One thing to remember is that the baloon is a closed basically air-tight system. Now while air flows into the intake its really a closed system all the way to the backside of the valves. It will take some time, but 5lb in the charge pipe is basically 5lb in the intake plenum..and when the valves open it tries to fill the chamber with 5lb. Sjs was right on that you have to take efficiency into effect..obviously 5.00lb in the charge pipe does NOT mean there is 5.00lb in the combustion chamber..but i think everyone gets the picture. Here is my current idea for sjs's problem...5psi in the intake 'circuit' while none is flowing to the map...when you let off the throttle, the throttle plate closes causeing air to stop flowing.(never replied weather you had a bov or not) If it does blow off, it effectivily blows the pressure out of the current intake loop (including map line)...so the selenoid re-opens...when you mash the throttle, the 5PSI is already there and rushes the air in back in the manifold..the second it takes your selenoid to switch again you already have boost in your manifold ->lean... i think that's my best guess now. hrm.