Calculate Head Air Flow From RPM And CID

Back HomeWallace Racing Back to Auto CalculatorsBACK to Calculators         

These formulas are from A. Graham Bellís Performance Tuning in Theory and Practice..

This is the "minimum" amount of Flow @ 28" needed to attain Peak HP at your RPM point

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.

Head Flow From CID and RPM Calculator
Engine Size (CID):
Number of Cylinders:
Volumetric Efficiency (typically 100-127.5):
FLOW at 28 inches: Input Number Of Cylinders please

Turbocharging Performance Handbook

Turbo: Real-World High-Performance Turbocharger Systems

Race Car Engineering & Mechanics

Race Car Vehicle Dynamics

Street Turbocharging

Alison Balter's Mastering Microsoft Office Access 2003

Access 2003 Bible

D-Link DP-300U 10/100TX 1-USB Port 2-Parallel Port Print Server

HP Wireless G Print Server

Writing Excel Macros with VBA

Linksys PSUS4 PrintServer for USB with 4 Port Switch

HP Wireless Printing Upgrade Kit

IOGEAR USB 2.0 Print Server, 1-Port

Xantrex Technologies 851-0400 XPower Plus 400-Watt Inverter

Home Wind Turbine 600w/12V - Small Wind Generators with solar/wind output