On the left is the gear-drive cam and its distributor drive gear, while the pair on the right are for conventional chain drive. Notice the different helix angle of the gears. Shown here are the cam ...

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 ...