Originally Posted by
KoroKoro
I also was looking for a dyno... but to my knowledge, they are not real dynos in the sense that they dont measure torque but only rpm per volt... I cant see anything available on ebay. Can you recommend where I can get one at least?
I have an old Robitronic that works pretty well on brushed motors. It is a flywheel dyno that measures both torque and speed, so it can calculate output power. These occasionally (rarely!) show up used on Ebay or here on RCTech.
The Robitronic has an internal resistance to simulate NiCd/NiMH cells, so it won't be too accurate if you run your motors on LiPo. But for comparisons between two similar motors the data is still useful.