I used to have the calculations, but they seem to have disappeared from my PC here. Does anyone have the airflow calculations handy for port design, intake flow, etc. for CFM vs. HP potential?

You mean like: CFM = (CID * RPM * VE)/3456

http://www.fortunecity.com/rivendell..._calc/cfm.html


Also:
HorsePower (per Cylinder @ air flow) = 0.43 * (Head flow CFM @ 10in-h20)
or 3.44 * CFM for an 8-cylinder engine.


Example: At .500 lift a stock "C" head flows 250 cfm at 28" of H2O. You must convert this to 10" of H2O. Click HERE to find the correct multiplier. The potential HP is (.598*250) = 149.5 * 3.44 = 514 HP

http://www.angelfire.com/wa2/Olds/headflow.htm


Or maybe:

Interactive Engine HP/RPM Computation

http://www.bgsoflex.com/flowcalc1.html

Thanks!