ORIGINAL: Taylor Shaw
ORIGINAL: Wheelnut
In addition to the heat sinc cooling it looks like you could get a couple of turns of some water cooling coil near the brushes which is where the heat comes from. Thats a tough one. I would run it and see how hot it gets with the cooling you had on it. If it gets too hot you might want to consider changing the motor mount.
No.it doesn't matter. air cooling does a better job then water cooling any day !
Air cooling is not as effecient as water cooling due to the fact that the water is cooler than the air, but also due to the fact that the air in the hull is going to get warmer and warmer as time goes by, even the fan itself creates a small amount of heat. Why do you think that all boaters use water as a cooling method. Even all the real boat motors use water as a cooling method. It's more effecient period.