Supercharger Speed Calculator - LS Power Steer Gilmer Drive

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

Supercharger Pulley in Teeth: T
Power Steering Pulley in Teeth (59 for LS-1): T
Power Steering Pulley Diameter (6 for LS-1): inches
Crank Pulley Diameter (7.52 for LS-1): inches
Supercharger gearbox ratio (3.6 for V-2 / V-3 Units): :1
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 and Crank Drive Kits, please use the Supercharger Speed Calculator (Link).