I recently upgraded my TT01E, three of the changes are,

1. Motor: Orion 19T Modified + Head Sink
2. Pinion: 21T.
3. Metal Motor Mount.
4. Drift Tires, of course.

I am still using the stock ESC (trying to save a few bulks). Now the car drifts so much better , without a doubt. But here are some observations I find disturbing.

1. At 1/2 throttle all the way, ESC gets really hot in just a few minutes, approximately 80 celsius degree.
2. Motor stays approximately at 60 ~ 70 celsius degree.

Are they <span style="color: rgb(255, 0, 0);">overheating</span>? I am planing to add a heat sink to the ESC, and a computer case fan on the transponder mount to blow away heat from both the ESC and the motor.

Thanks.

If by stock ESC you mean the Tamiya TEU 101BK ESC, then you are using a motor beyond it's limit. That ESC can only handle down to a 23 turn.

It's best to get a ESC that can handle a 19T motor. Even if you do a fan or heat sink mod, it will only be a matter of time before the ESC dies.

Thank you, Freequensee.

I have installed a small heatsink +fan, taken down from an old video card, on top of the ESC (yes, TEU-101BK it is). Also, I have installed a desktop case fan on the transponder mount blowing right at both the ESC and the motor. Essentially, the ESC has gotten a heatsink and dual fans.

I believe you are right that it will only be a matter of time before the ESC dies, but this is the idea. Iwould like to max out what Ihave now before Ihave to replace it.

Idid a test run last night with the settings above-mentioned deployed, and the results are quite satisfying. The whole time the throttle was from 1/2 ~ 3/4 all the way for 20 minutes non-stop, at the end of the test, the temperature of the ESC measured at about 45 celsius degree, which is on par with the motor. This seems a big improvement, for now.

All the cooling stuff you did is a great idea but you have already maxed out the ESC with the 19 turn motor. motors are cheap go back to the stock or a 23 turn motor and save the ESC.
You can drift just fine with the stock motor and ESC.

Ihave heard people using 17T on 101BK for months. Ithink I still have some safety cushion left here.

BTW:did another test run tonight, after 20 minutes (1/2 throttle), ESC stays cool (almost no heat coming out), and motor stays at about 45 celsius degree.

Very cool, hopefully you will get some life out of it.