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4-Rib Supercharger Nose Pulleys RPM Chart

Crank Pulley SC Nose Pulley Ratio Max. Engine RPM Max. Blower RPM*
Stock (130mm) 77.5mm 1.68:1 7,200 12,096
Stock (130mm) 73.0mm 1.78:1 7,200 12,816
Stock (130mm) 67.5mm 1.93:1 7,200 13,896
Stock (130mm) 65.5mm 1.99:1 7,200 14,328
Stock (130mm) 62.5mm 2.08:1 7,200 14,976
Stock (130mm) 60.0mm 2.17:1 7,200 15,624
Overlay (150mm) 77.5mm 1.94:1 7,200 13,968
Overlay (150mm) 73.0mm 2.05:1 7,200 14,760
Overlay (150mm) 67.5mm 2.22:1 7,200 15,984
Overlay (150mm) 65.5mm 2.29:1 7,200 16,488
Overlay (150mm) 62.5mm 2.40:1 7,200 17,280
Overlay (150mm) 60.0mm 2.50:1 7,200 18,000

*Note: Recommended.

Maximum Blower RPM: M45 - 14,760 RPM MP62 - 17,280 RPM

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