Volumetric efficiency (Re: Equations..)

[atsakiri at ford.com]

With regard to determining volumetric efficiency ...

You need some form of air flow meter to measure the actual
amount of air that is inducted by the engine.  (This actual
measurement is then compared to the displacement of the engine.)
The air flow meter doesn't have to be fancy or even electronic.
Jim (Staff), the simplest approach I can think of is to use
a standard orifice or a laminar flow meter.  You can use a 
simple water manometer to measure the pressure drop across
these devices (just make sure that all the air that goes
into your engine goes through the device too - buy some duct 
tape).  To convert from pressure drop to mass flow rate, you'll
need to know the flow coefficient for the standard orifice or
a calibration curve for the laminar flow meter.  Ask your physics
teacher if your school has such equipment.

Anthony Tsakiris