Hello I have one question, I port my supercharger well my friend did, but I don't know if is it normal or something it sound kind of Loud, my brothers said it was the rotors so i chance it and still the loud noise, can ya help me out here
Did you replace the front bearings with the rotors? That noise sounds like a bad bearing like a bad idler or tensioner but if your hearing it from the supercharger I would worry about the bearings in the snout.
The rotors you replaced would only be damaged if a foreign object went through them or worn bearings let them contact each other or the case.