thats probably why he said "I guess I was wrong".

Just got some more info:
- the motors are handwound;
- the stators are individually balanced by machine.

I can forward all the e-mails and MSN messeges to you if you like. I'm just saying it's kind of wrong since they had no plans for a car motor, but all of a sudden they have them. I gave them a lot of information and even mentioned a few other things which they didn't add to their motor (Which is good).

Sorry for the misunderstanding. I have no doubt about what you said. The thing that doesn't make my sense is how they were saying different words to different people. They are seemingly going to come up with many car motors from 1/18 to 45mm big ones for 1/8 vehicle from what I learned at a LHS here in Beijing.

It's cool. Good thing I didn't give them all the ideas I have in mind for a nice motor. The only thing I don't like is the way they go about doing things. They say they don't want to make motors for cars, then they pass all the info I sent them to the engineer and then nothing.

Here's some pics of a tenshock 2240/10 (1530kv, 2200watt max power) car motor next to a 60mm medusa and a tekno neu 1515. Installed the motor in a mini ste, almost ready to try it out.

http://i798.photobucket.com/albums/y...91009_0439.jpg
http://i798.photobucket.com/albums/y...91009_0440.jpg
http://i798.photobucket.com/albums/y...91009_0441.jpg
http://i798.photobucket.com/albums/y...91009_0442.jpg
http://i798.photobucket.com/albums/y...91009_0443.jpg
http://i798.photobucket.com/albums/y...91009_0444.jpg
http://i798.photobucket.com/albums/y...91009_0445.jpg

they have no fiber wrapping at all. The magnetics are wedged into the steel core, so the core's edges hold them in place. This is totally different from all others that I saw. I can take some detailed picture if you guys like to.

here's a picture I got from tenshock:

http://i798.photobucket.com/albums/y...S/P1050701.jpg

Rather strange- no wrapping at all on the rotor...
Drkdgglr- have you had time to test the 2240 yet?

If it works out without wrapping the rotor, then it's good. When I was talking to them about making a motor for car, they said it didn't need due to the way it's held in place. How is the motor running on your application(s)?

I'm almost ready to run the motor. Just need to hook up the eagletree with temp sensor. It's getting dark here soon, so it won't be before the weekend.

I'll be running the motor in the mini ste first (4.8lbs) and when my E-Maxx is ready, it'll go in there (+/-7lbs).

I'm geared 18/42 which should give me about 39mph without ballooning. The medusa 1300kv, geared 20/42 (37mph without balloning) ran gps verified 50mph and stayed very cool onroad. Offroad it would heat up, so I changed to 18/42 with the medusa&off road.

rotor looks ugly and kind of inefficient.

Yeah it looks heavy with all the metal in it. And definitely ugly! :lol:

the finned tenshock motor weighs app. 280-290 grams which is the same as a 60mm medusa or a smooth can neu 1512. From tenshock I understood that the holes you see are made to balance the rotor.

Seeing the holes on only one side of the rotor is telling me that the rotor was seriously off balanced to begin with. But I am sure that Tenshock will come out with better rotors in due time. :D

...that's definately an important criteria :na:

To me that looks really solid, clever idea, and is probably cheaper to manufacture.

Wrapping may NOT be the ultimate solution:

my Losi Xcelorin's Kevlar bonding/wrapping of the rotor got damaged by sand that got into the motor. That almost killed the rotor, I was able to fix it by putting super glue on it a couple of times. like that the kevlar didn't get loose any further.

The rotor of a mate's Losi xcelorin got seriously damaged like that: the magnets got loose, he didn't put super glue on it, then damage was too much.

They say that the newer rotors of the xcelorins (1/8) have now carbon-wrapping.

an other downside of a wrapping is:
it needs space, but the less space between the winds and rotor, the better.

Y not just wrap the rotor with an ultra thin heatshrink over it? :intello: Just kidding. Hey u have have a very good point there. I didn't realise that sand can damage kevlar wrappings. But how did sand get into the xcelorin motor in the first place? Aren't the endbells sealed?

The problem is not the Kevlar, but the Epoxy used. Most epoxy works best with carbon fiber. I'll be waiting for results on vehicles running this motor(s).

I just ran mine, but I had to stop because the rear casing flew off after an agressive cartwheel. Guess I'll have to use glue to hold it in place.

I had the eagle tree with me, but somehow it's stuck in recording mode and my pc won't recognize it...

The front/endbell are closed; but there are various mounting-holes for the screws in the frontbell, and that's enought to let sand in, which sands off the first layers of the kevlar. if you don't act early enought (sealing the holes wich are not used, sealing the kevlar-fibres with super glue), the magnets get loose.

I didn't believe what I saw when I opended the motor the first time, lots of sand, damaged bearing, damaged kevlar. Even though I keep my car clean inside:party:!

I've heard these motors are quite expensive, nearly as much as a Neu. I'd rather have my money go to Neu than some Chinese company any day.

Chinese products are not likely to stay at the super low end forever. They'll natually be going to have better quality and ask for a fair price, like the Japanese did decades ago. You know Steve Neu uses Chinese magnets, so will you buy a Neu? The thing that matters to me is not where the motor is made, but how it works.

These motors are, supposedly, quite good. It's not about quality, I'd rather drop money on a domestic product if I were going to spend that much. I love the cheap Chinese motors because they're cheap and they work (for the price many are quite good) but if I am going to drop hundreds of $ on a motor I'd keep that money in my own economy than send it overseas.

the price depends on where you live and were you buy the motor. If I buy a new Neu, i'll have to add about $30 for shipping, 19% tax and some extra custom duties.

products from hk usually get past customs easier and shipping is cheaper. For me the tenshock would have been the same price as a 60-70mm medusa.

edit: I would end up paying a total of $340 for a new finned neu 1512...

Had to take the motor out because the rear came off, so I took some pictures of the rotor:

http://i798.photobucket.com/albums/y...91016_0176.jpg
http://i798.photobucket.com/albums/y...91016_0177.jpg
http://i798.photobucket.com/albums/y...91016_0178.jpg

Is that rust or some sort of coating?

the first picture almost makes it look like the magnets are wooden:lol:

that rotor don't look too healthy:no:

Clever way of preventing the magnets from comming loose, but they look like pepperami sauasages to me... :lol:

that's right.

Most "rare Earth" Magnets like neodymium do come from china. The german manufacturer Flyware (good brushless motors) get their magnets from china. Most or probably all nimh batteries come from china; IB Intellect Batteries are chinese, and are they crap? And almost any Lipo is manufactured either in China or Taiwan.

It depends on the quality assurance, if a chinese product is crap or not. the german slot-car brand "Carrera" have moved the assembly from Germany to China some years ago. After some problems in the beginning, they now have just excellent quality.

Sooner or later china will be a problem for both american and european brands. Because we rely on the fact that we're good... but things change...

Things that justify the higher price compared to cheapo chinese motors are the fact that these motors are hand wound and each rotor is individually balanced. unfortunately it seems my eagle tree has died, so I can't provide any et data from running the motor.

Are there any for 1/8 truggy? 4-pole,6-pole would have too much torque, right? And most of their motors seem to have 4mm shafts. I'm looking for one that is abt 2000kv, 5mm shaft and not too torque crazy. 2-pole 2000kv compared to 4-pole 2000kv, the 4-pole would be very high torque, right?

The 22 series 6 pole motors all have 5mm axles. The biggest one in the 22 series is the 2250 which is rated for max 2500watt's. It's not listed on their site, but I've seen the car version of this motor listed in a webshop. Theoretically that motor should do well in a truggy.

I also just saw they have two 8-pole motors. The 2740 (45*59) which is rated for max 3000 watt's and the 2750 (45*69,5) which is rated for max 3800watt's.

I would like to see if someone is using it for 1/8. I know I have a local guy who's bringing it in direct from China but will let him try it on his truggy and buggy before I decide on things.

Just ran the tenshock with the mmpro. Geared 16/42 which is about 35mph without ballooning. Ran onroad, in the sand and in grass. Running off-road and in the grass temps slowly rose to 118f, and when I ran onroad the temps would drop to 100f. I didn't push the car offroad beyond 118f just to be safe. I don't think the fan on the mmpro ever turned on.

edit: didn't change any settings in the mmpro before running expet setting the lvc to 3.2v/cell. 50% brakes was a bit too much, changed it to 30% for the next run

Hello Folks,

Just did some testing of the Tenshock 6 pole motor X802 (2400kv)

Car Setup
Slash 4x4
Geared 21/52
Proline Streetfighter Tires (4.5" diam)
Trackstar 150 ESC
0% Punch
3s 6000mah 25c Turnigy Nanotech
Ambient Temp 55f
Theoretical Speed (scriptasylum calc) - 51 mph
Recorded data from an Eagletree v4

1st run
No motor timing
Temps after 10 minutes of high speed runs
Motor 120f
ESC 85f
Peak Amps - 177.5
Peak Watts - 1780
Min Voltage - 9.98
GPS Speed - 54.4 mph

2nd run
Added 16 degrees of timing
Temps after 10 minutes of high speed runs
Motor 150f
ESC 95f
Peak Amps - 175
Peak Watts - 1801
Min Voltage - 9.98
GPS Speed - 55.5 mph

Not sure what to make of the fact that adding timing appeared to change nothing except raise the temps, was suggested that these motors come alive when its added

Not bad results though, quite happy with the motor, will push it a little harder and do some 4s testing soon

Cheers

hi,

had my first runs with the x801 with 1900kv on 5s in my LRP S8 TX Team Truggy. It's supposed to be strong enought to run the truggy, and I have heard quite good things about the Tenshock motors.

Well, in the beginning it got far too hot, with the recommended high timing of about 18 deg., and later with 26 deg. timing. I think, gearing was far too big, too. my fault. ESC is a used HW ezrun 150a. Like that, temperatures were around 80 deg. c and more (185 f.), with timing of 26 deg. about 90 deg. C. I am using a fan on the motor.

I think, the timing and setup for a buggy is different then for a truggy, so I tried lower timing.

I was told that they are getting a bit hot, but that was far too much. So I have changed gearing to 16t, the same like with the Leopard 4074 2000kv. The leo always had around 55 to 60 deg. C, with fan (140f).

With lower gearing and lower timing of around 4 degrees, the tenshock got a little cooler, like around 65-70 deg C (158f). Slightly hotter then the leo. well, we had a worm summer day here in Hamburg.

Performance was good, quite similar to the bigger Leo 4074, probably a bit more torque, not sure. both have the same sized magnets I think. the x801 has a power-characteristik quite similar to the Leopard. So far, it is hard to tell if the x801 is that much better then the leo. the x801 is basically a 2240 motor. The x802 has more slots. There are also long versions available I think.

But that's just a first impression so far, and I have to test some options on the esc. I loved my xcelorin 1700kv, which war for sure not any weaker then the leo or the Tenshock.

For a buggy for sure a great and powerful motor, and probably for a truggy as well. more to come soon.

florian

so I had some runs again today. I tested timing of 11,35 degrees, and the temperatures were much better. Worm summer weather with about 30 deg. c, the motor got between 60-69 degrees, round about 156 f. This is ok, still I use a strong fan.

I think there is some more torque compared to the 2000kv Leopard, which is aready a great motor. So far, the x801 seems to be a great motor.

ics
 

here are some pics comparing the Leopard with 2000kv and the x801 with 1900 kv

the (smoked) Leopard is longer
http://s7.directupload.net/images/110606/r9xlvl86.jpg

left the Leo with smoked windings, left the Tenshock x801, wich offers more space for the bigger magnet. The x802 has more slots
http://s1.directupload.net/images/110606/paiif7ab.jpg

both are 40mm long but the tenshock is thicker, six ooles of course
http://s7.directupload.net/images/110606/6fxiovzf.jpg

no kevlar or carbon fiber is used:
http://s7.directupload.net/images/110606/giiivrsc.jpg

The bearings measure 5x16x5 mm, just have ordered some ceramic ones...

flo