1. A multiple stage supercharging system for an internal combustion engine, the engine having a carburetor with an air intake snorkel, a gas tank, a magnetic flywheel, and a crankcase, the supercharging system comprising: a backing plate attached to the crankcase of the engine, a centrifugal compressor housing having an air intake and an outlet, the centrifugal compressor housing mounted on the backing plate, a centrifugal compressor wheel attached to the magnetic flywheel of the engine, the centrifugal compressor wheel positioned inside the centrifugal compressor housing, air filter means for filtering ambient air entering the air intake of the centrifugal compressor housing, a secondary plenum chamber having an inlet and an outlet, the inlet mating with the outlet of the centrifugal compressor housing, a d.c. motor driven axial compressor having an inlet and an outlet, the inlet mating with the outlet of the secondary plenum chamber, a primary plenum chamber having an inlet and an outlet, the inlet mating with the outlet of the d.c. motor driven axial compressor, the outlet of the primary plenum chamber mating with the air intake snorkel to the carburetor, a pressure equalization tube extending from the primary plenum chamber to the carburetor, an electric fuel pump having a first line and a second line, the first line connected to the gas tank and the second line connected to the carburetor, alternator means for producing alternating current from the rotation of the magnetic flywheel, the alternator means surrounding the magnetic flywheel, and alternating current to direct current conversion means for converting the current from the alternator to a direct current, the direct current connecting to the d.c. motor driven axial compressor.