A compressor driven directly off the crankshaft. Because it's mechanically linked to engine speed it responds instantly, but it costs power to spin — you're spending engine output to make more of it.
Supercharger
Engine
in short
Engine
A compressor driven directly off the crankshaft. Because it's mechanically linked to engine speed it responds instantly, but it costs power to spin — you're spending engine output to make more of it.