Originally posted by Wyrp:

Superchargers run off the engine's belt, so the boost is always present. However, since the supercharger is powered by the rotation of the crank, a portion of the power gained is lost due to the additional resistence the motor must over come to drive the supercharger.





Not entirely true. This is not true with Centrifugal type superchargers. i.e. Vortech They have to spin to a certain RPM before any PSI is produced. A positive displacement supercharger, i.e. Kenne Bell or Eaton have instant boost. Positive displacement superchargers will not produce boost when your trying to keep a steady speed,regardless of the RPM.

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