Or could you put a blow off valve on a supercharger?
Supercharger Blow Off Valve
No, superchargers make a whine, turbos make a spooling sound
This Site Might Help You. RE: Do superchargers make the same sound as a turbo with a blow off valve? Or could you put a blow off valve on a supercharger?
The supercharger will always have the whine sound at idle and normally disappears the higher the RPM is. Now most supercharger systems do come with a by-pass valve which functions the same as a blow off valve. They both are used to prevent surging of the compressor when your throttle body closes. Now the sound is slightly different. With a turbo it is more aggressive where you normally hear the high pitch whistle sound. With the by pass valve it is similar however it is not as high pitched. However you still can here the whoosh sound when you change gears or let off the gas. Now this whoosh sound is only present on superchargers which are equipped with a by pass valve AND the valve is being vented into the atmosphere. Some by pass valve have to be vent back into the air intake assembly which causes the sound not to be there. Normally cars that have the by pass valve after the mass air meter HAVE to be re routed back into the system, so you will not get that noise. And for those applications that have the by pass valve before the mass air normally vents into the atmosphere allowing you to hear that whoose noise. So to make this simple....the blow off valve noise can be heard depending on which type of application you have. And btw...YES you can adapt a blow off valve onto curtain superchargers however normally you will need one with a stiff spring to work. But, I would recommend running a by pass valve instead of a blow off valve for they are designed for superchargers because they are vacuumed operated.
