Originally posted by JEDsContour:
Uh Oh, I should have explicitly stated that all pressures are "overpressures." By 0psi pressure I mean atmospheric (not vacuum) â?? same as a tire gauge would read at sea level. Iâ??ll say overpressure from now on.

The other questions require that you know air density as a function of pressure and temperature. The following free program will provide that data.
Uconeer 2.3: Freeware unit conversion and materials property calculator


Well either that or a trick question of a trick question.

Since you "specifically" stated 100 psi in the intake (not cylinders) there was no way to answer the question accurately.

I took it to mean 100psi in the cylinders and we all know 1 atmosphere is always present right. Well actually the speed of the intake charge acts as a natural supercharging effect so there again is another variable changing the final output. I mean my car at 7200rpm is pulling about .8psi of boost all on it's own... heheh...

So I used a 100% VE and no supercharging effect and took it you meant 100psi total cylinder pressure before compression.


Good link. It will save digging out all those formulas.

2000 SVT #674 13.47 @ 102 - All Motor! It was not broke; Yet I fixed it anyway.