My mini is making a knocking noise. Im pretty sure its the superchager. My car wont wind anymore, doesnt over heat, and drives. When i rev to 3 to 4 grand the noise gets louder and i feel no pull from the Sc. Maybe the Sc fan? Any help is much appericated.

 

do you have a boost gauge to be sure you are getting any/ less boost? Mine was making similar noises to as you describe and it turned out to be a broken a/c compressor clutch...

 

Sometimes the bolt will break holding the alternator, and the belt gets caught up. You might wanna check that.