Like off the transmission [gear drive] or the flywheel? Or wheel driven? Or if you had a RWD vehicle --off the rear diff? [more boost with more speed] [burnout] Just wondering. 
Sorry but I tried to read that with a straight face......[hah]^ Don't laugh but what if you could drop a *fifth wheel* out from the car to run on the road to drive the supercharger when you get going fast enough? If you had to you could use some kind of gear box to get the thing spinning fast enough.
And also the faster you go the more boost you need.
One other idea is to use nitrous up to say 50 mph, then shut it off and use the S.C.
that would apply to a centrifugal SC. a roots type has constant boost through out the RPM range.Not that I know of but you have the right idea...more boost with more speed....SC's are belt driven which means they work off how fast your motor turns so the faster your motor turns, the more boost you get. It would be a hell of a setup to see a SC run off of a flywheel or something else. Too much money to make it work IF you can make it work.