sweet... what motor is in it?

I've got some pretty aggresive tires on it so I went with the 1515 1.5Y It was hard to decide which one to get.

I misspoke, I have a 1515 1Y. Also, I'm running 4s, 6400mah UBEC and MM.

I ran the setup over the weekend. It works pretty darn good. Temps were good. I had a fan on the motor and the blades flew off. I had to stop to fix the bare wires. Then ran for another 12-15 min. Motor was at approx 150*F with no fan, MM was at about 125*F with a fan. Outside temps was about 91*

The Mamba Max is amazing. The Quark would have overheated. The MM does have more of a punchy feel. My gearing was 12/51. It may be geared a little low. Top speeds weren't bad, but it felt like I could go up a tooth on the pinion. I've run 4 other ESC in this buggy. All in all the MM is a very good way to go. I like how easy it is to progam and the fact that you can have custom cut off for the Lipos. If the Quark didn't thermal it might be up there too.

Glassdotor, I'm glad I took your advice!

Cartwheels/Muck

Sweet.

But did you run the Neu with any other speedos? That's the part I don't know yet... can the MM handle the other motors or is it just that the Neus are that efficient???

I'm having a hard time making the effort to put the old motors in my buggy to try it.... guess I should just so I finally have the answer....

It's got to be a little of both. Now that it's working good it's hard to go back and try other stuff that didn't. I did do some work on my Quark and I will try it out with the Neu motor. It should be able to handle that but It might be a couple of weeks!

I'm glad to hear others aer having good success w/ the MMaxs, I've been running mine now for ~month with great success. I was getting high temps w/o a fan, but with a 12v 40mm fan (on 16.8v) I wasn't breaking 120. I just switched to a 5v 25mm fan running off of the 6v from ubec. Obviously a lot less airflow. I was running through the grass about 10 min and it hit 130.

What fans are you guys running? I'm hoping to 25mm will work, but if I need to go back to the 40mm its ok.

The biggest prob is the motor heat. The 8xl (15/51) on 14 cells gets upto 150 routinely, and was ~160 in the grass run. Its still ok, as I don't race, but I'll have to keep an eye on it. The neus sound great. I may look at one next year and maybe they'll have enclosed ones by then.

Actuall, regards tot he fan. a 30mm 5v will push more air than a 40mm 12v. The 12v fan is not getting the full juice it needs unless you run it off the batts. i would go 30mm. i run two on my quark and they really MOVE!

The 40mm was running off the batts (16.8V.) It def moves a lot of air, sounds like a tornado, but i worry about the lifetime running it at that high a voltage. I want to stich to the 25mm 5v fan for 2 reasons: The 25mm fan mounts neatly on the esc' heatsink and the ubec provides a steady 6v power source (close enuf to 5V) rather than sending ~20V full charge to a 12V fan.

If you're running 20v to a small fan, which probably pulls no more than 300mA (most likely ~200mA), you could use a 12v regulator. Power dissipation will only be 2.4W or less. It would need a heatsink though.

Using the 5v fan is fine on 6v though. If you were really concerned about overvolting it, just run a diode in series. The 0.6v-0.7v drop will bring the voltage even closer to 5v.

Yeah I thought about doing that if the 25mm doesn't do a good enuf job, but I wasn't excited about having to add more clutter, plus I wasn't sure at what point I'd need a HS.

The good news is I ran 3 pairs of packs yesterday and the temps on the esc stayed low. Max temp was less than 125 on the HS (generally in 1teens tho) and max of 135ish on the caps. The drawback to the 25mm is its not blowing on the caps so they are running hotter than before, but still well in spec. The bad news was the motor peaked at 165+ after ~45 mins of hard running on the dirt (jumps, high speed runs, powerslides, climbing and other bashing goodness.) The HS was only getting to ~125, so I'm worried poor contact may actually be insulating the motor some. Had a blast tho. :)

Strangely, the rear steel output shaft for the tranny got to ~165. :013: I was careful to have the drivetrain freespinning when I built it, and had to do a little chassis trimming for the shafts. I did notice the shaft moving a bit under high throttle, so I'm thinking a bearing is busted. I do not see any signs of wear between the chassis and the driveshaft. Hopefully addressing these two issues will bring down the heat some, else I may be looking at a Neu sooner than later..

I think I'll be adding myself into the group of people who are running Neu motors in a few weeks. What I'm looking at is a 1512 2.5D (2000 kv) for 1/8 buggies (Swift and X-Terminator). The batteries are Maxamps 4s 6300mah 15C (should be here tomorrow) through a Mamba Max ESC. But first, I'm curious to hear some more details about anyone using this particular motor in a 1/8 buggy on 4s Lipo.

Well, I have the 1900kv and I think I have said that I would get the 2000kv if I did it over again. I run 4s 6000 lipos.

Not much difference between 1900 and 2000... and I'm happy with what I have. I gear about 14T for racing and it easily handles 18T for street bashing (largest pinion I have) so I think the slightly higher kv would be a good thing.

If there was a 2200kv 1512 I would say that would be a great motor for guys wanting fast bashing speeds like 40+ mph most of the time.

there is a 2200 version... but its a little longer, the 1515 1Y... if i can find one at the chicago show i might pick one up... do you guys know anyone carrying the neu motors that's going to be at the chicago ihobbyexpo show on right now? i saw some pletty there today but no neu's just the ones on the speed boat castle creations had in their booth... i didn't get to see the whole show today, there is a lot to see... hopefully i find some tommorow

what about the 1521... they're even longer... 3.3 inches... anyone thought of those?

Where do you see a 2000kv 1515 motor? Unless I'm blind, all I see near 2000 are 2200 and 1700 versions...

That post was referring to the 1512 not the 1515, sorry...

I would try the 1521 if I ever did a big basher truck, jumbo tires etc... or maybe a high voltage setup for a world's fastest r/c thing.

1521?

This is from their website....

NEU15xx
Model RPM/Volt

Weight (oz)
Smooth/Finned
Length (in) Rm (Ohms) Io@10v MSRP
1506/1D 9500 6.0/6.35 1.8 0.0015 9 $175.00
1506/1.5D 6800 6.0/6.35 1.8 0.0025 5 $175.00
1506/1Y 5500 6.0/6.35 1.8 0.003 3.2 $175.00
1506/2D 5200 6.0/6.35 1.8 0.004 3.0 $175.00
1506/3D 3400 6.0/6.35 1.8 0.008 2 $175.00
1506/3Y 1700 6.0/6.35 1.8 0.029 1.2 $175.00

1509/1D 6700 7.48/7.94 2.1 0.002 6 $195.00
1509/1.5D 4500 7.48/7.94 2.1 0.004 3.8 $195.00
1509/1Y 3600 7.48/7.94 2.1 0.004 3 $195.00
1509/2.5D 2700 7.48/7.94 2.1 0.0082 2.5 $195.00
1509/1.5Y 2400 7.48/7.94 2.1 0.007 2 $195.00
1509/2Y 1820 7.48/7.94 2.1 0.018 1.5 $195.00

1512/1D 4875 9.88/10.23 2.4 0.002 6.0 $225.00
1512/1.5D 3200 9.88/10.23 2.4 0.0035 3.0 $225.00
1512/2D 2600 9.88/10.23 2.4 0.006 2.3 $225.00
1512/2.5D 2000 9.88/10.23 2.4 $225.00
1512/3D 1700 9.88/10.23 2.4 0.012 1.5 $225.00
1512/1.5Y 1900 9.88/10.23 2.4 0.009 1.8 $225.00
1512/2Y 1400 9.88/10.23 2.4 0.015 1.1 $225.00

1515/1D 4100 12.00/12.70 2.7 0.0025 5.5 $280.00
1515/1.5D 2700 12.00/12.70 2.7 0.004 4.5 $280.00
1515/1Y 2200 12.00/12.70 2.7 0.006 2.5 $280.00
1515/2.5D 1700 12.00/12.70 2.7 0.010 2.25 $280.00
1515/1.5Y 1500 12.00/12.70 2.7 0.011 1.7 $280.00
1515/3D 1360 12.00/12.70 2.7 0.012 1.2 $280.00
1515/2Y 1100 12.00/12.70 2.7 0.019 1.1 $280.00

1521/1D 2800 16.93 3.3 0.003 5.5 $300.00
1521/1.5D 1860 16.93 3.3 0.005 3.5 $300.00
1521/1Y 1577 16.93 3.3 0.008 2.2 $300.00
1521/1.5Y 1050 16.93 3.3 0.010 1.2 $300.00
1521/2Y 780 16.93 3.3 0.025 1.0 $300.00

1527/1D 2160 21.80 0.0020 5
1527/1.5Y 850 21.80 0.0120 1.5

Cool!!

i was checking another link..

Thanks.

it's nice that they're made in the US..... I haven't tried any of these motors yet.... Maybe next year....

I guess we found a potential candidate for the 19 series...

so what do you guys think for an e revo... 1515 or 1521... i don't know how to figure out how much current these will draw... i'm thinking of a two 2s lipos setup in series.... that way i could use the single lipo setup in my 1/10

I like the 1512 2.5d on 4s lipo. IT does nice.

You don't need more than a 1515 for sure.... but I won't stop you from dropping in a 1521. Just let us know how it runs!

The current draw depends on many variables of course.. what I saw with a 1515 in a truggy was spikes of 100-120A and average about 20A. My cars would settle at about 30A once they hit top speed.

A vid of a 1521 would be nice. I guess that would be close to a lehner 1980. If they made one.

Add another one to the list I ordered the Neu 1515 2200kv motor with a mamba max ESC last night for a jammin CRT conversion. :D