Absolutely correct, even Hesketh have had to put a vent into the cam belt area to provide some more cooling.
That's was my question too ( see previous post ) which I asked Justin Time.
Did you had the spacers between the belt cover to get some ventilation ?????
Sorry for my late response, I have put the spacers in.

I have also spent some time with a 3D scanner, and now have an accurate model of the S&S casing, I hope to get some time this week to come up with a vented solution. I can save the CAD file in most flavours, for anyone else if they require it.

My belt arrived a few moments ago too, S&S manufactured.
