We examined the belt and where it tore apart the belt had been blistered by heat. ...
...I don't disagree about the build up of heat inside the case. Even decades ago when Harley did the belt primary they had a vented cover to help reduce the heat on the belt. And that was outside the motor, not inside. Without some type of venting/cooling, I cannot believe these belts last very long on average.
I like the idea of scoops to cover the direct holes and still let air flow through the cover.
