The supercharger is a forced induction device that uses a compressor to increase the pressure of air entering the engine. This increased pressure allows more air and fuel to be burned in the engine, resulting in more power. However, the supercharger itself is a very high-speed device, and it requires a constant supply of oil to lubricate its bearings and gears. If the supercharger is run without oil, it will quickly overheat and seize, causing severe damage to the engine.
In addition, the supercharger can also cause the engine to run lean (too much air and not enough fuel), which can lead to detonation. Detonation is a process in which the air and fuel mixture in the engine spontaneously ignites, causing a violent explosion that can damage the pistons, cylinder walls, and other engine components.
The bottom line is that running a supercharger without oil is a very bad idea. It can lead to catastrophic engine failure and costly repairs.