The crank gear (A) is exactly half the size of the cam gear (B). The cam turns only one revolution for every two revolutions of the crank. This is so the exhaust and intake valves will open and dose ...

Just when we were getting used to the supercharger world as it was, it changed. An example? Try Powerdyne. Long known for its noiseless belt-drive supercharger, and a proponent of the super-easy ...