Lucoferon

So I'm stop new to all this and have a pretty basic question. I upgraded my spur and pinion gear to 64t & 29t respectively. The motor and ESC definitely get hot and shuts down after only a short while. So my question is if I'm able to keep them cool enough will it still damage the motor or ESC? I found an old heatsink and fan from a PC build and through that on. Do you think that should keep them cool? I think so but what do I know. Can't post a pic yet but I think it will so the job.

RustyUs

Your RC is probably way overgeared.

What RC?

Having a infrared thermometer will be your best friend when you start messing with gearing and different motors. Keep your brushless motors below 180°F, and to be on the safe side I always strive for 160°F when I bring my RC off the track, or done bashing.

You can put whatever heatsink/fan you want on the motor, and ESC. I think it will be a band aid and not do a whole heck of a lot in making a huge difference in temps if you are pushing your gear too hard.

EXT2Rob

My Feedback: (1)

Hi Luco, welcome!
Yeah, you're way over geared. I'd drop the pinion tooth count to 21 and go from there. The ESC should stay below 125F and, properly geared, the motor should run between 125-140 depending on the ambient temperature.