Nonetheless, the Hellcat blower movement seems to be gaining traction for two reasons: It's less expensive and/or has a larger displacement than more direct bolt-on alternatives. On that first ...

The Hellcat engines are all well sorted out from ... that means the engine is more efficient, so the blower doesn’t have to work as hard. This cam netted a gain of 48 horsepower and 23 lb ...

which is common to Roots blowers as well as twin-screw superchargers like the one found on the Challenger Hellcat's engine. Normally, the drag created by such a system means that a blower ...