I went to the track tonight for a roll racing event. Had about 4 runs, on the fifth run about mid track my car felt a little off. When I let off I heard as if the belt shredded. Once I popped the hood I lost about 2 ribs and the pulley shifted forward about a1/4". I'm a little worried and hope there is no damage to the blower. It has a 2.4" pulley. What do you guys think is the root cause of this?