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.