Neu vs Medusa motor temps
 

I finally got a chance to run a side by side comparison of motors.

My local track opened yesterday. I ran a full pack in my 8ight-T with a 70mm 2000 kv Medusa. It came off the track at 190F, the MMM was about 110F and the Zippy FlightMax 5000 pack was about 100F.

Same everything, swap in the identical but charged pack, now with Neu 1515 2.5d. The run was longer by several laps but I wasn't timing it. Came off the track at 110F, MMM was about 80F and the Zippy was 100F.

The Medusa gives more torque and higher top speeds (based on my impression only) but clearly sacrifices a lot of efficiency to heat. So far, it seems to handle the heat though, I've run it up to 190F, even 200F a few times with no perceptible loss of performance.

Now that I've seen the difference for myself, I'm fully sold on the value of the Neu motors. Not cheap, but worth the extra. One thing I would mention is that if you're running a steel spur gear, you can expect to need a new front armature bearing periodically. Do yourself a favour and order a couple before you need them.

I'm going to get back to work now.

I just compared my Castle 2200 KV motor vs my NEU 1515 1Y/F, the Neu runs 30 deg cooler....nothing else changed. They are suppose to be identical motors as well. Big difference....NEU hand wounds are a little better for sure.

Definite distinct here in the quality of hand wound perfection vs mass produced profit centers.... And the good ole saying "you pay for what you get"

I think the Neu1515 should be compared to a 80mm medusa, and not 70mm.
The medusa 80mm is rated for 1300watts and the neu 1515 for 1250watts.

^ +1. Yeah, 80mm is longer, but the 1515 is larger in diameter...

Mmmmm, girthy!

At any rate it does seem like the Neu motors are worth the addl price.

Just got my 1515 2d back from neu...

I agree that the 1515 and 80mm is a better comparison.
ALSO 2.5D is like 1700kv vs a 2000kv Medusa. :neutral:

Yeah, Neus are definitely a better motor. But it's really hard to beat the price to performance ratio of a Medusa. I run Neus in all my bigger stuff (except the XT8 because I wanted to try a larger Medusa), and save the Medusas for the smaller vehicles. Sometimes, it's hard to justify a motor costing over $200 on a $100 vehicle.

sometimes its just hard to justify $200 on a motor tho... But I pay it anyways...

I will gladly pay the price everyday :yes:

For me its hard to justify getting a motor with open vents and stiff/fragile wires sticking out of the back end in addition to spending the $200. It's impressive how long we have to wait in order to get quality and practicality in the same package, given that many are already willing to pay big $$ for a motor, whose exterior design is not even best suited for cars. The castle-neu motors/tekin rx8 motors are a step in the right direction, but also a step in the other direction, due their mass-produced quality.

Also, I have not tried a genuine neu but, some say the castle-neu motors are just as good, others say they are worse, and I have seen reports of both good and bad temps for both motors.

This isn't really the best comparisson! Testing a 2000kv motor with the same setup as a 1650kv motor? Obviously the 2000kv is going to run hotter, If you had adjusted the gearing to be for the same speed then it would have been a better test.

There is an error I noticed here and just want to clarify that the Tekno Neus are not a mass produced motor. They are still a genuine hand wound Neu, they just have a different can that is sealed and has bigger bearings

Post edited, but isn't it true that Tekno-neu motors still have a different winding gemetry, which is why they don't have much of a cogging effect when you spin them by hand vs. the genuine neu? If I can recall, that change seemed to have increased motor temps.

Windings are the same, there may be a slight increase in temps but if anything that can be attributed to a sealed can vs one that air can flow through. Geared for 40 my Tekno Neu 1515 2.5D on 5s is only running 140-145* pushing my RC8T, in my Revo geared for 40 it was about 150-155*. My Medusa in my Revo, runs about 145*. The Medusa is questionable cause I ordered a 1600kv but it seems more like a 2000kv, I have it geared for about 35 right now using 2000kv and that's about what it's doing

wow we are compairing 68mm motors to 80mm motors... neu for the win!