heat issues with a silver can

[judgemarshall]

yes i know it has been talked about before but this is a little different

over here we run with a silver can for one of our national classes and the heat problem is a real problem, my current gearing is a 28 with a 78 spur, and the car seems to go well for a few laps and then the speed seems to drop off to nearly a crawl

i cant go any lower in the gearing as i would be to slow, just cant keep up with the losi

the things i have done to reduce heat so far is
run losse belts
have no undertray ( i know weird) ( using body posts at the front of the batterys instead)
have a fan mod going to the motor

anybody else have any ideas

i use the KO vfs 1 comp for a speed control (thought this might be in thermal so instead of shutting down just reduced power)????

the motor is hot enough that you cannot touch it

any ideas would be great

cheers