THE SONG OF MY PEOPLE
Apart from increasing an engine’s power output, turbochargers and superchargers are sometimes also desired for the sounds they make. A turbocharger setup usually includes a blowoff valve, which protects the turbo against compressor surge, and this creates a distinctive high-pitched hissing noise. Some turbo setups also have a wastegate, which diverts away excess gas. At full throttle, the wastegate creates a loud whooshing sound that some drivers like. On the other hand, superchargers are known for their high-pitched whine, which is created by the meshing lobes compressing air into smaller and smaller spaces.