why are superchargers not good at producing boost at high rpms like turbos?
In: Engineering
Superchargers and turbos are, for all intents and purposes, the same device. The primary difference is that one is driven by a belt, the other is driven by exhaust.
Any improperly sized device is going to run out of steam, so it’s important that the pulley/exhaust turbine be properly matched to the expected operating range of the impeller. So if you put a larger impeller (it’s not that simple, but for the sale of conversation let’s pretend) on a supercharger that used to run out of boost at 6k rpm, you could make more boost at 6k and still have room to go up making boost at 7k. You’re going to loose some response at lower rpm though, so that needs to be considered..
It’s a matter of pairing the engine efficiency with the supercharger/turbo efficiency.
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