CC/Neu vs Losi Xcelorin vs Tekin T8 motors

well, all I can tell you is my experience with a Neu 1515/1.5d and a T8 2650.

motors were used in two different vehicles: a Jammin X1-CRT and an Ofna (or is it Hobao) Hyper 7, cells ranged from 2S to 5S

Here's what I noticed:

Neu 1515/1.5D
Tons of power, reliable and is definitely worth the price I paid for it. Rarely got over 130F. Of course, it would cog a little bit (both with a MMM and a RX8) at low speeds, but sweet mother of everything brushless would it open up a can of monkey stomp at WFO throttle. 5S usage was plain ridiculous; there ain't no way you can use that kinda power on race day. Unless, of course, you plan on going no higher than halfway through the throttle pull on your gun.

4S usage is a little more manageable. Say goodbye to the foams in your tires, though; a couple of wide f'n open throttle pulls down the straight will result in either your rig ending up on it's lid or tires the size of paper plates. Yes, I put duct tape on the inside of the tires. And no, it didn't help.

2S and 3S is where it is most happy...and where you get the best combination of speed and control. And temperature. You can probably get similar or lower temps on a 4S, but only if your name is "Johnny Magic Fingers". I'm talking about SMOOTH throttle control. Like my silk boxers smooth. Or smoother.

Summation: get it if you can afford it. You won't be disappointed.


Tekin Redline T8, 2650kv

Meh, a decent motor with less power than the Neu, but not too bad considering it's a smaller motor. Temps run a little hotter than the Neu, so I wonder about efficiency. Also cogs a little less than the Neu when run without the sensor lead, but seemed to be an absolute slug when the sensor lead was on. Your results may vary. I'm thinking it was a problem with the settings on the RX8 which led to it being such a donkey...again, however you decide to program the timing will more than likely dictate how she'll react/run in the finer points of a race (mid-air correction, cogging coming out of turns, etc)

Summation: Good power, could possibly be less efficient (higher temps) but looks to be sturdily built.



I hope this helps. I may not have covered everything, but please feel free to ask me any questions. :)

[florianz]

Hi,

I have the losi 1700 kv motor for about 7 months now. I have written a review in the forum.

After many great runs there are only a few negative points about the motor:

1. The screws of front/endbell can break (!!), once its broken, it's hard to get the bloody rest of the screw out of the endbell.

2. The kevlar-wrapping of the rotor can get damaged by dirt, which gets into the motor by the various mounting holes of the front endbell. They say that you can get a replacement rotor with the better carbon wrapping easily.
Well, not here in Germany. There is almost no support. The distributor in Vienna (responsible also for germany) first has never heard about those rotors, later never got some. I tried to get a new rotor, impossible.

Finally I have put super glue on the kevlar to avoid more damage, did that for 3 times, and sealed the not used mounting holes. it works.

3. As the losi 1/8 stuff is not that common here, it's almost impossible to get the proper heatsink. And if, it's far too espensive. I use two good fans, temps are ok like that. I won't order just one single piece in the us... that's senseless. like that temperatures are between 45-60 degrees c/113-140f. only a few times got over 70 deg. c.


But there are many good points about that motor.

1. It has plenty of power and torque. The rotor is balanced. As I now have a torsen center diff, I had to reduce (!!) timing down to 1 degree, otherwise it's too much power for the buggy. and I have already added weight to the front. With the normal center diff and 100k oil I used 7 deg. timing, and it was plenty of power. What I really like, is the massive torque of the 1700 on 5s.

2. It has massive bearings, the front is in a very common size and easy to replace (had to replace it twice due to sand and dirt). And I like the M4 mounting holes.

3. Except those stupid screws, overall quality is very good. Power is excellent.

4. Price: you can get the motor for around 85-90,- euro (120 usd), which is ok.

I only can speak for the 1700kv motor, I think it's just a great motor, but highly underrated. Losi is doing a bad job in regards of PR. Losi electronics have a bad standing here in europe, as their 1/10 stuff seem to be cr*p. Further, the xcelorin 1/8 esc is not available for months now. Losi electronics are not "sexy", compared to cc - mmm. There are so many - especially just recently and w/ 6s - blown mmm here in Germany. Still, people think it's great stuff etc. Well, they say they have great customer service; I think they have to, with all these problems... but thats off topic.

I think I am one out of a few here in germany, using a losi xcelorin motor. The other day I was competing (frankenstein's ride - hyper 7) a little bit with some guys with hpi bayas, on soft/sand ground; at least I was same fast (or even faster)... I would buy that motor again.

florian
owner of a BL-Frankenstein's ride