Tekno RC Neu or Orig Neu

[DRIFT_BUGGY]

Sweet, be sure to post back on how it performs

[George16]

Guys, you can check out on y build here: http://www.rc-monster.com/forum/showthread.php?t=12463

I just updated it with more pictures. As usual, any comments or tips are greatly appreciated.

[teknorc]

Hello,

Just to clarify, these are exactly the same inside as all of the newer Neu motors. All of the newer motors have an updated stator/rotor design to reduce cogging. It is not specific to our version, but rather a new thing for all Neu 1515 and some 1512 motors (not sure about the other sizes). Older Neu's will be harder to turn by hand. FYI :)

[George16]

Originally Posted by teknorc

Hello,

Just to clarify, these are exactly the same inside as all of the newer Neu motors. All of the newer motors have an updated stator/rotor design to reduce cogging. It is not specific to our version, but rather a new thing for all Neu 1515 and some 1512 motors (not sure about the other sizes). Older Neu's will be harder to turn by hand. FYI :)

Thanks for the clarification. I just receive my Neu today . However, on you website, you stated that a selection of winds will be available to suit 3, 4, 5, and 6s 1/8th scale buggy and truggy applications.How would I know which one I got since the motor did not come with anything (spec sheet, instruction etc)? I'll be running mine on 6S.

[mkrusedc]

Originally Posted by VintageMA

I have to question your comment about machine wound - please post where you heard this information.

Straight on the Tekno RC website it posted that the motor is hand made:

* These are genuine hand-built Neu motors, not mass produced

Thanks for the clarification. I read it on this forum in one of the first threads about the new tekno Neu.

Originally Posted by teknorc

Hello,

Just to clarify, these are exactly the same inside as all of the newer Neu motors. All of the newer motors have an updated stator/rotor design to reduce cogging. It is not specific to our version, but rather a new thing for all Neu 1515 and some 1512 motors (not sure about the other sizes). Older Neu's will be harder to turn by hand. FYI :)

With this info than, even though I have an older one, it sound like the newer versions would be better.

[George16]

Originally Posted by mkrusedc

With this info than, even though I have an older one, it sound like the newer versions would be better.

That what it sounds like but this phrase got me wondering: a selection of winds will be available to suit 3, 4, 5, and 6s 1/8th scale buggy and truggy applications.

[mkrusedc]

Originally Posted by George16

That what it sounds like but this phrase got me wondering: a selection of winds will be available to suit 3, 4, 5, and 6s 1/8th scale buggy and truggy applications.

Wye and Delta or number of windings?

[mkrusedc]

So help an electric noob out. Why is the Neu 1515 1y 2200kv best run on 5s?

2200rpm * 4s * 4.2V/cell = 36,960rpm
2200rpm * 5s * 4.2V/cell = 46,200rpm
2200rpm * 6s * 4.2V/cell = 55,440rpm
neu says top limit is 60,000rpm

the closer to that limit, the more wear on the bearings.

[TexasSP]

But you're not going to get 4.2 volts per cell under full load.

[BrianG]

Not only don't lipos stay at 4.2v/cell for very long at all, but any amount of current reduces the kv rating...

i was just trying to teach a man to fish...

[Mozzy]

Originally Posted by FunkedOut

i was just trying to teach a man to fish...

I think your fishing methods aren't correct.

Isn't the max RPM of a motor based on the size of the pack X the kv?

ie:

3s = 11.1v x 2200kv = 24420 RPM
4s = 14.8v x 2200kv = 32560 RPM
5s = 18.5v x 2200kv = 40700 RPM
6s = 22.2v x 2200kv = 48840 RPM

Or am I way off the mark here?

[George16]

Originally Posted by Mozzy

I think your fishing methods aren't correct.

Isn't the max RPM of a motor based on the size of the pack X the kv?

ie:

3s = 11.1v x 2200kv = 24420 RPM
4s = 14.8v x 2200kv = 32560 RPM
5s = 18.5v x 2200kv = 40700 RPM
6s = 22.2v x 2200kv = 48840 RPM

Or am I way off the mark here?

That's what it says on Brian speed calculator .

[hoovhartid]

Originally Posted by Mozzy

I think your fishing methods aren't correct.

Isn't the max RPM of a motor based on the size of the pack X the kv?

ie:

3s = 11.1v x 2200kv = 24420 RPM
4s = 14.8v x 2200kv = 32560 RPM
5s = 18.5v x 2200kv = 40700 RPM
6s = 22.2v x 2200kv = 48840 RPM

Or am I way off the mark here?

yeah...i think he was just using 4.2v instead of 3.7v

3s X 3.7 = 11.1 vs 3s X 4.2 = 12.6

but remember the max rpm of a motor is still limited by the quality of construction and size of the motor. In this case, we are talking about neu motors which have a max rpm recommendation of 60,000rpm. So take your max rpm and divide by your voltage to get the max kv rating.

60000 / 22.2 = 2702kv
now is this the end?....nope
while you CAN run the motor to 60000rpm, it doesn't mean you should. Running any motor at its max will most likely cause heat/efficency issues.

and here is where brian and others could probably school me...
...i have heard that its best to run these motors in the 40000-50000rpm range for best efficency.

which is why I bought the 1515/1Y to run on 6s (22.2 X 2200 = 48000rpm max) Only time will tell....