Todays date is 12/17/2017
Calculate Head Air Flow
Needed For The HP Wanted
Back to Calculators
These equations are for recreation only.
Not a substitude for actual testing.
The HP is based on rear wheel HP.
This calculator is based on Naturally Aspirated applications.
These calculations are for port work with no 'choke'.
"Choke" is defined as the intake port with flow, but not adequate cross sectional area to provide real intake flow to fill the cylinders.
To figure your 'choke' - Choke Calc