Well, I've only been into the BL scene since around '05 so you actually have much more experience than I, but how long does it take to learn common sense?

I wouldn't trust something that was made to be water cooled to power something that big and heavy reliably. I've heard of people running Hydras in E-Revos and such and they say they work well without replacing the cooler but I am personally very skeptical of using a Boat ESC in a car/truck/buggy/etc.

I would check this out and E-Mail CC and ask their opinion on it. I can pretty much guarantee that they will not recommend running a boat ESC in a Baja 5B though. They will be able to give you some good advice about your setup and point you in the direction of a good ESC for it.

Funny thing I forgot to tell you guys. I should be fine for another 3 months or so with any heat issues. Its been below 20 degrees for the last month and it never exceeds that until around early march here. I will then be in the process of water cooling the esc with a radiator mounted behind the front bumper, "new" nitro tank filled with water, and a small pump. Really gets technical but it should work.

Seems like it would be more effective to build/buy a water cooling jacket for the motor.

With your reservoir, pump, radiator, etc. wouldn't it be lighter and easier to just get an air-cooled ESC?

Or void the warranty by bonding heatsink fins to the tubes sides...

I wonder if Castle would customize one for you with fins instead of tubes?

Personally, any exostic cooling method just increases weight and things to go wrong...

I personally am not worried about weight.:lol: It will weigh 32.8lbs loaded w/o the esc, tank, small radiator, pump etc... As long as it stays under 35lbs im fine with it.

That gives me an idea. Im going to e-mail castle and ask them if they'd be able to make a heatsink for it. Good thinking Brian!:party: