Mechanical loss, because the displacement of the turbocharged engine is smaller when the power is the same, so the size of its parts is also smaller, which can reduce a lot of friction resistance and motion loss. But when the throttle is light, there is only one crack in the throttle, and the engine can only inhale through this gap, just as we drink drinks with a very thin straw, which is very hard to absorb, so the naturally aspirated engine consumes more power on suction at this time.

A turbocharger is a supercharging device used in a car engine. Its function is to increase the intake pressure of the engine, so that the engine can generate more power.