What is the Difference Between Supercharging and Turbocharging in an Engine?

[Fitzgerald]

The main differences between supercharging and turbocharging are as follows: 1. The most significant difference lies in the driving method of the air compressor. Turbocharging utilizes exhaust gases to drive the compressor, thereby increasing the engine's output power; whereas supercharging uses the torque generated by the engine crankshaft to drive the compressor to enhance the engine's output power. 2. The intensity of boosting differs. Supercharging provides continuous boost throughout the operation; turbocharging has a noticeable surge point and delivers a smoother boost. 3. The optimal driving speeds for boosting vary. Supercharging is more effective at low to medium speeds; turbocharging excels at medium to high speeds. 4. The fuel consumption required for boosting differs. Supercharged engines consume more fuel than turbocharged engines because the supercharger starts working immediately upon engine startup, requiring energy to drive its rotation.