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What is the Difference Between Supercharging and Turbocharging?

2 Answers

TravisDella

07/28/25 11:40pm

The differences between supercharging and turbocharging: 1. Different boosting methods: Supercharging uses the engine's own power to drive a compressor for boosting; turbocharging utilizes the exhaust gases produced by the engine to drive a turbine in the exhaust pipe, which in turn drives a turbine in the intake pipe for indirect boosting. 2. Different pressure levels: Supercharging is limited by the engine speed, resulting in lower pressure; turbochargers rotate at extremely high speeds, generating several times higher pressure than superchargers. 3. Different structures: A supercharger is connected to the engine crankshaft pulley via a belt, using the engine speed to drive the internal blades of the supercharger to produce boosted air, which is then sent to the engine intake manifold; in turbocharging, the turbine housing's intake is connected to the exhaust manifold, the exhaust outlet is connected to the exhaust pipe, the turbocharger's intake is connected to the air filter pipe, the exhaust outlet is connected to the intake manifold, and the turbine and impeller are installed in the turbine housing and the turbocharger, respectively.

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DePhoebe

08/12/25 4:00am

The biggest difference between supercharging and turbocharging lies in response speed. Superchargers are driven by the engine belt, directly compressing air, so power delivery kicks in immediately at low RPMs, making driving feel as smooth as an adrenaline boost—especially ideal for stop-and-go city traffic. Turbochargers, on the other hand, are powered by exhaust gases and need higher RPMs to deliver power, resulting in a slight lag at low speeds, but they pack a serious punch on highways. Having driven both types, I found the former much more pleasant in traffic jams, while the latter excels on highways. Additionally, superchargers are simpler to install but require attention to belt maintenance; turbochargers are more fuel-efficient but need careful heat management.

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