Supercharger Boost Calculator

Boost and flow are theoretical (100% volumetric efficiency, 7″ crank pulley). Charge temperature uses the supercharger’s adiabatic efficiency (A.E.).

Inputs

%
inches

Results

Engine Air Requirement per Revolution
–
Pulley Ratio
–
Pressure Ratio
–
Free-Air Displacement per Revolution
–
Theoretical Boost
– psi

Gauges

5500
70
Inner: Engine RPMOuter: Supercharger RPM
Inner: m³/hrOuter: CFM
Inner: Intake air tempOuter: Charge temp