Higher kv vs. taller gearing

[sleebus.jones]

Originally Posted by B15

My mamba has holes through the case with 25mm pusher/ puller fans

Wow, that's a lot of work to be able to run inefficiently!

I'm not slamming you, but take a step back for a minute and think about what's going on. All that heat you are blowing out of there (innovative solution, BTW!) is all wasted power/energy. A perfectly efficient motor wouldn't generate any heat. If you are making enough heat to require a setup such as you describe, that's a lot of runtime being blown out the fans!

The solution to heat is higher voltage. If you can't run higher voltage, you're pretty much going to be stuck with any heat problems you may have. Dropping amp draw is the way to reduce heat, and you can really only do that by lowering the load on the motor (gearing down) or going to a higher voltage. That's pretty much it.

Finnster on here is a perfect example of this: he runs 10S, his truck is a beast, and it doesn't get much more than warm to the touch. My 1/8 buggy that I run 5S in with a 10XL barely gets warm at all, and has enough power to lay rubber on concrete. I'm going to make a 6S pack for it next.