TP vrs, Neu motor

[royalcasa]

So, I am building a twin Cheetah with Tp 4050 2200kv 180 V2 Seak esc, 45 and 47 props on 4s. what would be the comparable Neu motor to the 4050 TP

[Prodrvr]

Subscribing...I just bought one myself. However, I'm going 6s 2200kv.

[rol243]

2200 kv is too high to run on a 6s battery set up unless your going to do SAW only. a 1515 neu motor would be around the 4050 t.p. 2200 size.

[Prodrvr]

2200 kv is too high to run on a 6s battery set up unless your going to do SAW only. a 1515 neu motor would be around the 4050 t.p. 2200 size.

I am running saw only.

[Prodrvr]

I have two Poseidon 1515 2200kv motors for this boat.

[NativePaul]

TP and Neu both use the same 4 number description system of can diameter then rotor length. The difference being TP is a Chinese company so they use the metric system, whereas Neu, are american based so use a derivation of the imperial system. To find the equivalent Neu size you divide the TP size by 25.4, the Neu size for your 1.57"x1.97" TP would be in between a 1518 and a 1521.

Note, Neu started off producing solely for the very high performance air market and made motors with very thin and kinda delicate cans which were only a fraction over 1.5" hence the 15 name, but have since thickened their cans to be more durable for general market, so they are now closer to 1.6" than to 1.5" as is the TP but they have kept the 15 name so you have to round down on can diameters.

[Fluid]

The TP 4050 dimensions are 40mm x 93 mm.
The Neu 1521 dimensions are 40mm x 84 mm
The Neu 1527 dimensions are 40mm x 101mm

The above are can dimensions, what really matters is the rotor dimension. That information is more difficult to find, the nominal values both makers are IME just that, nominal. Plus, nominal rotor length is only part of the equation when comparing motors. Equal lengths do not mean the motors are comparable in performance.



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[Raydee]

My TP 4050 is only about 82mm long (Can length)

[NativePaul]

My TP 4050 is only about 82mm long (Can length)

And by no great surprise my Neu 1521 is a little bigger than your 4050, at about 86mm long (can length).

The TP 4050 dimensions are 40mm x 93 mm.
The Neu 1521 dimensions are 40mm x 84 mm
The Neu 1527 dimensions are 40mm x 101mm
The above are can dimensions, what really matters is the rotor dimension. That information is more difficult to find, the nominal values both makers are IME just that, nominal. Plus, nominal rotor length is only part of the equation when comparing motors. Equal lengths do not mean the motors are comparable in performance.

I totally agree about can dimensions being meaningless. I don't have a 1518 to measure but according to Nue's website while it has a shorter rotor, it uses a 1521 length can (no wonder they are unpopular, I for one want a 1521 inside my 1521 can, not a 1518 and 10cc of air).

I am unwilling to take my motors apart to measure their rotors, so nominal rotor length will do for me, to gauge my rotor's length.

I will agree that there is way more to a motor's performance than rotor length. The lamination thickness, the airgap and the magnet strength all play a large part in the efficiency of the motor, but as they are can't be measured without stripping it, and magnet strength is hard to gauge even when stripped, to me rotor length is still one of the best performance indicators. Having said that, the amount of copper they cram in dictates the current at which the motor can be used to a large extent. I would say that a motors mass is as much or more of a performance indicator than its can or rotor size, as it indicates how much copper is inside. A 1518 despite the oversize can is 411g, a 4050 is 420g, and a 1521 is 480g (as per manufacturer specs).

It is the 4060 not the 4050 that has a 92.5 mm can, but 60/25.4=2.36, so I would agree with you that it fits in between the 1521 and the 1527. My guess is much closer to the 1521 though, as it weighs slightly less (as per manufacturer specs)

[rol243]

the smallest T.P. 40 mm motor is the 4050 and going by comparison viewing , the neu 1515 / 1y /2200 is closest than the other 1518 / 21 etc. is this correct ?

[Speed3]

The 1521neu should be a close comparison if you are going by rotor length to the tp 4050.

That's a 53 mm rotor neu vs a 50mm rotor tp. The 1518 neu would be around 45 or 46 mm.

[Brushless55]

So, I am building a twin Cheetah with Tp 4050 2200kv 180 V2 Seak esc, 45 and 47 props on 4s. what would be the comparable Neu motor to the 4050 TP

I hear those TP4050 motors are no joke.

I have two Poseidon 1515 2200kv motors for this boat.

Where did you pick those up?
I'm curious about those motors.

[ray schrauwen]

Poseiden are very close to castle motors.

[Brushless55]

Poseiden are very close to castle motors.

Ray, do you believe they are a little better than Castle motors in your opinion?

[ray schrauwen]

After so many years I’m not sure. I remember when they first came out people claimed that they were the same in regards to the 1515 and 1717. I haven’t followed if there were changes since then.