PONTIAC POWER RULES ! ! !

Calculate Max RPM From Head Flow



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For a more accurate calculations try Larry Meaux's Pipe Max.
His program is excellent and will provide a lot of info.
Pipe Max

For an excellent ET Calculator, try ET Analyst from Max Race Software.

Try this excellent book for more info: A. Graham Bell’s Performance Tuning in Theory and Practice..

If you input 100(%) for Volumetric efficiency this will be close to the maximum rpm at peak HP at your CFM.

If you then input 127.5 (%) for Volumetric efficiency this will be close to the minimum rpm at peak HP at your CFM.



Engine Size (CID):
Number of Cylinders:
Head Flow at 28 inches:
Volumetric Efficiency (typically 100-127.5):
RPM:   Input your CID please