My Tekin motor showed up today. I soldered the leads on and hooked it up to the Losi motor mount using the 4mm screws. The motor is very well made, it has both 3mm and 4mm mounting holes which is a great idea. I use 4mm whenever I can, to hold such a big heavy motor 3mm just doesn't cut it, a holdover from 1/10 scale electric. Anyways back to the motor, the front cover is removable which will make bearing replacement much easier, it is also held on with six screws, I have heard of motors with four screws getting ripped open on hard landings. I hooked it up to my MMM ESC and took it for a spin up and down the street, it feels just as strong as the MMM 2200kv motor. I hope to have it out on the track this weekend where I will be able to see if temps are the same and more importantly what my lap times are compared to my MMM motor. The Tekin motor also has a plastic spacer under the front cover, a nice touch, as it gives you a little extra protection from long mounting screws. I really like the solder on tabs, I had issues with the 6.5mm bullets I was using on my MMM getting loose and pulling apart, which required adjusting the bullet tension.

http://i142.photobucket.com/albums/r...3/DSC05840.jpg

http://i142.photobucket.com/albums/r...3/DSC05843.jpg
The MMM 2200kv and Tekin 4038 2000kv motors are about the same length.

http://i142.photobucket.com/albums/r...3/DSC05857.jpg
Hooked up and ready to go.

One more thing, I noticed that when using finned motors (MMM and Tekin T8's) the motors rub on the middle mud guard screw. It will snag on the screw whenever you remove the motor. I just took a dremel and just touched the grinding wheel to the screw, thats all you need.


http://i142.photobucket.com/albums/r...3/DSC05849.jpg

Anything on the track where you could compare yet?? Very interested.

Unfortunetly I was not able to make it out to the track this weekend, but I was able to get it out on the street again hooked up to an Eagle Tree data logger. I have a nice flat area about 50-60 yards long where I can give it full throttle and full brake. With my tracking gearing I am usually able to hit 30+ mph in this distance. I checked for clogging from a stand still, and noticed that sometimes there was some slight clogging, once the motor was spinning it was smooth and powerful. I made 6 runs (full throttle/full brake) on paved road (100% traction) and then checked the temps/Eagle Tree data. The ambient temps were about 70 degrees, I checked the motor and it was 103 degrees, the ESC was 98 degrees. The Eagle tree showed it was drawing 140amps (max). Those numbers looked normal, but one thing happen that was strange, while I was checking the Eagle tree data I heard a fan whirling, I looked and the MMM ESC fan was running, I double checked the ESC temp and it now read 93 (cooled slightly), after a second or two the fan stopped. I understand the fan is supposed to come on at 140 degrees, but my ESC never got over 100 degrees, don't know why the fan came on. Will need to keep an eye on the temps when I do get on the track.