Supercharger

[Srxspec]

Matt, low boost (trail) setup requires 91 octane while the high boost requires a mix of 50/50 pump fuel & race gas.

 

[Fergie]

Thanks Allan.

 

[bjowett]

.... Boost is boost no matter what makes it, if the slides/plates are closed it has to go somewhere....

Almost, but not quite... when the throttle is closed on a turbocharged engine, the turbocharger quickly loses what drives it - exhaust heat. With the supercharger being belt driven, it will contunue to produce boost based on engine RPM... so when you drop off the throttle, the engine still coasts for a bit, and continues to drive the supercharger, which continues on attempting to cram air into the engine.

 

[RED]

Then according to bjowett, superchargers are going to be worse with "stacking" of the air.