Difference Between Naturally Aspirated and Turbocharged Engines?

[StCassidy]

Differences between naturally aspirated and turbocharged engines: 1. Different principles: Naturally aspirated engines utilize the pressure difference between the engine and the external air to draw in air; turbocharged engines use the exhaust gases generated during machine operation to drive a compressor for air intake. 2. Different fuel efficiency: Naturally aspirated models tend to be more fuel-efficient in urban driving conditions; turbocharged cars show noticeable fuel consumption reduction at high speeds, i.e., after reaching higher speeds. When the engine operates at high RPMs for extended periods, the temperature at the turbo inlet becomes extremely high. If the engine is stopped immediately, oil lubrication ceases, but the turbocharger's rotor continues to operate, potentially leading to insufficient lubrication and cooling, which may damage bearings and shafts. It is recommended to let the engine idle for about 3 minutes before shutting it down.