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I don't see why there'd be a need for one. I'm not aware of any supercharged car that has or requires a turbo-timer, since a TT is there to prevent standing oil from cooking onto a hot turbocharger.
super chargers are belt driven turbos are not so when you car sits it doesnt do anything to help oil get out of the super charger they are awsome though the look you get when you walk away from you car and it is still running oh it is fun i have one in my rx7 3rd gen wont work on the mini sorry probably would not be able to lock or alarm your car i think the stock alarm has something to do with the fuel like in the new vws.