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Home > Technical Library > Supercharger Speed Calculator - Power Steer Gilmer Drive

Supercharger Speed Calculator

To Calculate the maximum speed of your Supercharger's Impeller (Power Steer Gilmer Drive Only):

Enter your Supercharger Pulley in Teeth:				T

Enter your Power Steering Pulley in Teeth (59 for LS-1):				T

Enter your Power Steering Pulley Diameter (6 for LS-1):				inches

Enter your Crank Pulley Diameter (7.52 for LS-1):				inches

Enter your supercharger gearbox ratio (3.6 for V-2/V-3 Units):				:1

Enter your Engine's rpm at Shift:				rpm



Your Impeller Speed:				rpm

Maximum Impeller Speeds
Vortech V-3 Sealed Unit (CAPA Oil System) - 50,000rpm
Vortech V-3 Oil Feed & Drain w/ Air Assist - 58,000rpm

Ratios
Vortech w/ Helical Cut Gearbox (eg V-2, V-3) - 3.6:1
Vortech w/ Straight Cut Gearbox (eg V-1, V-7) - 3.45:1

Crank Pulleys
VT-VZ LS V8 Factory (P/N: 1480ST) - 7.52"
VT-VZ LS V8 Race (P/N: 1480SS) - 7.36"

Notes:
For LS-1 8-Rib Power Steer Drive Kits, please use the Supercharger Speed Calculator (Link).