Volumetric eff.

Michael F. Sargent MSargent at gallium.com
Tue Mar 5 18:41:55 GMT 1996


> The $80.00 code utilizes an empirical equation, similar (or exactly) to:

> VE = 5600 * ((Horsepower)/(RPM * CID)) * 100.0

> and will yield $80.00 results.

I'm going to have to disagree with you on this one Bruce. Engine Analyzer works
from the basic configuration of an engine (bore, stroke, valve size, nubmer of
valves, CR, intake runner flow coefficient, carb or TB flow rating, etc.)
and computes the VE. From the VE (and other parameters) it calculates torque
and then using RPM calculates HP.

It's fairly flexable in that it allows you to change things like intake and
exhaust runner lengths to see the effects that tuning will have. The people
who wrote Engine Analyzer claim it to be within +/- 15% of real world (i.e.,
dyno) results.

Mike
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