When out of water it revs out just fine. When put in water it won’t go over 45-50 mph and 6300rpm. It’s got about 150 hrs on it. The problem occurred when I hit and wave and came down.
Probably were revving the motor up and when you came down the supercharger slowed instantly and broke the ceramic washers if it has never been rebuilt before. Pull the sc intake hose and see if the impeller spins freely.