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How do I calculate a boost?

1. Basic Calculator Enter Boost (PSI): Input the boost pressure in PSI. For example, enter 20 PSI. Horsepower Gain: If you already know the boost, leave this blank to calculate the horsepower gain. Otherwise, enter the horsepower gain to find the required boost.

What is the supercharger boost calculator?

Producing Quality Computer Tools for Racers and Engine Builders since 1986 Information below is not emailed or printed Programs which may go into much more detail than the Supercharger Boost Calculator. A FREE calculator that determines the Supercharger boost based on Displacements, Belt Ratio and Efficiencies.

How much HP does a psi boost add?

One psi of boost typically adds 4-8% of the base horsepower. A 300 HP engine with 1 psi boost (using 6% estimate) HP gain: 300 × 0.06 = 18 HP Total HP: 300 + 18 = 318 HP How much HP is 5 psi of boost? A 5 psi of boost could add 20-40% of the base horsepower.

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