Stampede Project: Project Stampede: Traxxas Stampede - Tony Arnold stampedeproject.com

Motor Heat Sink - Associated Motor Heat Sink TC4 #31048

This was more of an adventure than simply snapping the thing on the motor can.

First off, as expected and stated on Misbehavin-Rc's site, the transmission housing requires modification (i.e. removal of some of the motor housing. This was no big deal, grab the Dremel with a cut off bit and make three linear cuts - done.

Second, the heat sink doesn't fit with the lower fins so those needed to be removed, more grinding with the Dremel.

Third and possibly the most frustrating part of the project was locating and positioning the heatsink so that the motor could be bolted up on the motor plate. The stickers needed to be removed from the can (the can has a permanent mark indicating 0 for timing), and sliding the heatsink on to the shaft end. What I finally ended up doing was installing the motor as normal without the heatsink and then marking which fin lined up with the timing mark and then removed the motor, attached the heat sink and then re-installed the motor.

The heatsink works great, I have yet to hit the 5 second touch test limit and the motor runs much cooler. Would I do the project again? In a heartbeat, however I would recommend buying a Integy heatsink such as the one pictured without lower heat fins or one of their fan assisted models (see note below.) I think in reality if you are gearing everything correctly you really don't need a heatsink, however everyone always over gears and/or does some high stress bashing with stock gearing when it should be geared even lower, so in my opinion this optional accessory give you motor some extra stay cool insurance.

Long-Term Update: I definitely would not go for the fan assisted model on an off road vehicle. These is just way too much junk that ends up in the fins. I have been exceptionally happy with the heat sink and have yet to get the motor to it's previous flesh searing temps.