using quark 125 monstor, which motor?

[rhylsadar]

yeah more power is always nice. however what i do not like that much about those neu's is the open can.
i know there is this rear cap. but i guess the can was manufactured the way it was in the first place for a reason.

bye
rhyls

[BrianG]

Like you said, there is a rear cap. And the holes in the front of the motor are covered by the motor mount. So, it's good.

[zeropointbug]

Does anyone know/or guesstimate the running temp of a 1515/2.5d on 5s LiPo would be? I'm guessing less than 110F?

Also, what kind of power/torque are we talking here?

Next year I would like to get a Neu.

[Procharged5.0]

The 1512 is a shorter motor. 1509 is like an "s", 1512 is like an "L", and a 1515 is like an "XL"

The rotor and can length are shorter and the torque output is lower than a 1515. That is why the price is less.

[GorillaMaxx360]

is there a noticeable difference in smoothness and torque and will this push my maxx on 4s efficiently

[Procharged5.0]

I forget who it is but someone on these forums is running a 1512 and said they like it alot. The 1512 is perfect on a mid-weight truggy but if your maxx is 10lbs plus I'd recommend buying the 1515.

I have a 1515/1Y for my Super E-Maxx and I run it on 12 - 16 cells.

[GorillaMaxx360]

do you think that it would work good even though it is probably best for a 10lb truggy do you think it would push my ride with enough tourque and effecentcy. i want to use this motor for its higher rpms so i can get the speed i want.

The higher rpms won't necessarily get you more practical speed. I think it's pretty much agreed upon (here anyway) and I have found in my own experimentation that around 30,000 rpm is where you want to be with a truck; or even a buggy for that matter. If you try to attain speed through sheer rpms, it usually means more heat. A better way to attain speed is perhaps running a higher voltage with a lower turn motor and gearing up.

On the other hand, if speed is your primary concern and you aren't worried about extended running, then a high kv motor may just be for you.

What kind of speed are you looking for anyway.

As for which Neu motor, 1512 or 1515, I discussed this at length with Mike (RC Monster). I was asking about a motor for my 11-13lb (depending upon battery configuration) Muggy. His opinion was that a 1512 would probably do the job. Something in the 1700-1900kv range. His recommendation, however, was to go with the 1700kv 1515 and use voltage and gearing to get the speed that you want. The 1515/2.5d running on 5S would turn right at 30k rpm and have monster gobs of torque for turning a big gear.

[rhylsadar]

Like you said, there is a rear cap. And the holes in the front of the motor are covered by the motor mount. So, it's good

yes sure you can cover those holes. i was just thinking that the way the motor is engineered with the open can was for a reason and not just by accident. the neu motors are actively used in the helicopter scene. and my guess is that the open can and the "cooling" airflow does have a function for the efficiency of those motors. so closing the motor is fine for truck applications. but it is very probable that it will have an effect on the efficiency of the motor. i am not an engineer so that effect may be so small that it is negligible.

but to come back to the initial question of this thread. i guess a 4S or 14 cells with a maxximum would be a fine setup in the maxx for the track. of course an adequate neu will do the same and is probably easier to get and have support in the us.

i just stepped in this thread because i do not see any reason aside of availability that would make me favour a neu clearly over a plettenberg as it was stated somewhere in the beginning of this thread.

bye
rhylsadar

[Serum]

in an airplane the motor is on a constant load, and will get hotter because of that. It might run in a less efficient area from time to time on an MT, but still; 94% eff. at a 2500 watts load means a 150W heat and 88 percent eff. at a 700 watt load means 84 watts of heat. The monster (Mike) won several races with his Neu 1515 on 4S. My neigbour ran a 1512 on his revo on 4S and the motor was icecold.

I would advice you the neu for several reasons. The plettenberg is hard to get, it might look nice though.. But a fan isn't helping its efficiency either.

Rhylsader; i advice you to try a neu. you'll love them.

[rhylsadar]

the neu motors are on my list of "consideration" for quite some time.
:028:

ryhls

[neweuser]

I run the same motor as Mike, the 1515 1/y on 4s and have also run it on 5s (got a tad warm on 5s though). I have several runs with constant running in a field barely taking my finger off the trigger. And, i have also done test runs doing hard starts and stops. This motor at the end of a full run stays so cool that I can keep my hand on for ever. Also, it's so efficient, my controller has yet to get over 100*F in 76* weather so far.

If you are running 4s, and want decent speed, yet bashable power, and dependability, the 1515 1/y is what you want. If you want more volts and speed, maybe the 1515 2.5D (which I think is much like a 1950/8 if I'm not mistaken).

[GorillaMaxx360]

thanks guys i think i will go with the 1515 1y this will be best for me because speed is important but effecienty and reliability and consistanty is more important.

[Procharged5.0]

I think thats an great combo! Good choice!

For a 4S battery configuration, with speed as a concern, you probably couldn't have chosen a better motor. I like to go fast too, but like to stay on the sane side of insanity. For me, it was a choice between the 1Y and 2.5D. Since I've gone to 5S, the 2.5D is what I'm shooting for now.