Volumetric eff.

[MTaylorfi at aol.com]

I was wondering, does anyone know of a function that roughly follows the V.E.
vs. RPM of an engine.  Engine size, manifold pressure and intake temperature
I'm sure affect V.E., but I'm just looking for a cheap estimate.

All you MAP die-hards have made me rethink my already working MAF based EFI
system.  The $150 MAF sensor is pricey..

See ya and thanks in advanced!!

Mike