Which Neu motor with 5S and Quark 125
 

Hi all,

I am looking for recommendations on which Neu motor I should consider for purchase. I'll be running 5S and the Quark 125.

What's it going in? Is that 5S lipo or 5S A123?

Personally, for a 5S setup, I think the 1515 2.5D is hard to beat. That will give you about the performance you'd get with the 2200kv motor on 4S, but will stress the system less because the current draw will be lower.

I try to stay away from high kv motors in trucks. I like the 30K rpm neighborhood. Again, assuming that this is going into a truck, you're only other options would be the 1Y (2200kv) or the 1.5Y (1500kv).

I don't own a Neu, yet; but I have been running lots of Feigao motors. I'm running an 8XL, which is pretty close to the Neu in terms of kv rating, and my Muggy is downright nuts on 5S. I was going to jump on the 2.5D, but after having seen the 8XL run on 5S, I'm thinking that I might go for the 1500kv motor to keep things sane. I might just order up a 9XL and see how I like that, before I drop the bucks on the Neu.

I'd vote the 1515 2.5d as well.

I'll be running 5S 5000mah MaxAmps Lipo in a FLM Emaxx with 1/8 scale diffs. I was really eyeballing that Neu 1515 1y/F motor, but it runs at 2200kv. Is that too much?

Why are the Neu motors priced so much higher than other brushless motors? What makes them stand out from the rest? I can't find anything on the Internet about them.

I dont believe so this is what i will be running in my heavy metal maxx. serum even knows a guy who runs the 2600kv neu on 4s and he said it ran cool. If i am not mistaken this is the motor that mike used (2200) in his maxx.

I am not a pro on these motors but the reason why i think these motors are more is becasuse they are more efficent, run cooler(with built in heatsink), have little to no cooging, and most importantly they are a 4 pole motor.

Thanks, this is what I'll be installing it in:

The big deal about the Neu motors is that they are four pole motors and they are much more efficient than the lesser expensive motors. As an FYI, I was on the phone today with the guys at Quark, and they told me that their esc runs the best with the Neu motors (actually, four polers, but he used Neu as an example). Something about the Neus liking the timing that the Quarks run.

Four poles mean more torque. Efficiency means cooler running. A Feigao, for example, (not looking for an argument) runs at about 80% efficiency. A Neu runs at about 90% efficiency. You might think that 10% doesn't mean much, but if you think about it, the Neu is only half as inefficient as the Feigao, so it will only generate about half the heat of a Feigao.

I think that 2200kv in a truck is way too much. Especially on 5S. I'm running an 8XL on 5S and I need to slow it down. The 2.5D is just where you need to be. You'll get really good speed, lower heat, and better runtime.

Personally, I'm debating on whether to get the 2.5D (1700kv) or the 1.5Y (1500kv). Just think. If you get the 1500kv, you'll have good running now and then when someone release a kick but controller, you'll be ready for 6S. LOL.

OK, really. I don't own a maxx anymore, but if you want a kick butt setup, I'd go for the 1Y on 4S or the 2.5D on 5S. You won't be disappointed.

Oh, you really have to take what I say with a grain of salt. I like to stay on the sane side of insanity. There are some that run the 2200 on 5S. It being too much is a matter of opinion.

funny that is the exact same setup i am using in my maxx except i will be switching to gmaxx arms. I had made a thread a while back trying to determine what Neu would be best for me on that same truck and i found out to be that the 2200kv was the right one for me and my needs. i was running it on 4s but my needs where around 40mph, reliable, fast but has enough torque and runs cool, and that seemed to be the motor for me.

Thanks,

I appreciate the advice....I'd also like to hear what Mike and Serum think. I am sure Mike will agree 1500-1800kv is the way to go.

Mike does run a 2200kv, but he runs on 4S. The 1700kv on 5S will give similar performance, but run even cooler and stress the batteries less. That what I think anyway. It's in the math.

Also...what runs cool for one person may not run cool for another. It also depends a lot on the temp of the environment. During winter, I can run a hotter setup witout thermal issues. When the summer hits, I really have to tame it down a bit.

I think the 2.5d on 5S would be a safe bet.

Good point. We are moving back to Dallas, TX in July. It gets hot as hell there in the summer.

I'm in Louisiana. I feel for ya.

Throughout all of this discussion, I don't think that you stated what it is that you are expecting from all of this. Are you looking for something stupid fast, or are you looking for something reasonably fast. It's all a trade off. Runtime, heat, and performance are always considerations.

You also have to remember that the batteries can heat up too. The more you strain them, the hotter they get.

I'm really having a hard time choosing between the 1700kv motor and the 1500kv motor. Really, going fast is fun for a while and it's nice to make your nitro friends eat dust, but it really doesn't matter most of the time. What matters most when I'm running is that everything is comfortable.

FYI, there's a interesting discussion in the brushless forum in a thread entitled "Quark fried, blown capacitor." I think that you may find it interesting. I know I did, as my first Quark is coming in on Wednesday. I'm supposed to have a 2.5d coming too, but I'm still undecided.

NEU 1515 2.5D will be the best choice for your set up the Neu 1515 1Y is good for 4s lipo set up .

I've chosen the 1515 2.5d for 5s with a quark, in a truggy, but it won't be ready to run for a while.

I run the 1515 1/y with the Quark 125. It runs way cool! I have also ran it on 5s...it was pretty crazy! The batts on the 5s got a tad on the warm side, but not bad at all. The Quark and the motor were reasonable temps as ell on the 5s, but I get way better temps on the 4s, that is for sure. If you are getting 5s, then I would most likely suggest the 2.5 for your Neu selection then.

Thanks guys. Your knowledge in this area never ceases to amaze me. I am new to the whole semi-custom monster truck hobby and appreciate your advice.

I run the 1512/2.5D (2000kv) on 5s and it runs all day no issue. I started off with a 1515/2.5D on 5s in my Revo and wound up swithing to the 1512/2.5D. I like it better for the type of running I do most of the time. The grearing needed is a little different for the 2 motors, but I can run gearing that gets me another 5pmh without thermalling over what I could get with the 1515/2.5D. Plus, overall it has a snappier feel to me, which I like. The 1515/2.5D probably has a little more low end grunt, but it really cant be used unless you have a really heavy truck. I can spin the tires or flip the truck instantly (depending on traction conditions) with either motor so extra low end is kinda useless anyway.

If I put it on the track, I run a 4s setup and it tames it out a bit and makes it a little more driveable.

Just my $0.02. I'd vote for the 1512/2.5D.

Thanks for sharing.

Neu 1521-1Y
 

Has anybody ever heard of a Neu 1521-1Y (1577KV) motor?

You saw that on ebay too huh? It looks like a longer motor. If you have room to mount it you could probably make it work. It would have TONS of torque. You could probably get away with some pretty tall gearing on it. Heavy motor tough.

http://www.neumotors.com/20061222/15...es%20data.html

Yep...killer price too. I notice that Mike is out of the 1515 2.5D...I was hoping to order one this week.

wow those are great prices. makes it real tempting to order another motor. to bad I just ordered another feiago this weekend.

The only thing with the 1521 motors is that the motor mounting holes are 4mm instead of the normal 3mm. That was the only thing that stopped me from buying one...

Bye:018:

I think the motor below would be good for a "small" truck. :)

http://www.neumotors.com/20061222/Sh...P0001322_3.jpg

If you haven't already done so, check out the "shop pictures". Really shows what those motors are made of!

with a motor that heavy I would prefer the larger screws. I am really tempted to order it for my 8ight t. with that motor heat should never be an issue. I already have a 1512 (never used) waiting for the truck when ever mike finishes the motor mounts but am still tempted.

So, do you guys that motor will work in an 8ight truck? I need a good motor.

I am holding out for the NEU 1515 2.5D

For 4S a 2200Kv would be an okay choice as well!

I will be running 5S. By the way...I see an awful lot of traffic in the forums regarding problems associated with the Quark 125. I think I have all my bases covered and should be fine, but would you guys please give me one last sanity check? Also note that my maxx is a heavier truck....

I'll be running:

• Quark 125 with heat sink and two fans
• Dimension Engineering Sport BEC
• Neu 1515 2.5d/F motor
• Evo 25 5000 mah 5s1p Lipo
• Lightning Stadium Pro 1/8 scale diff gears
• 5.5" tires
• 72T 32P spur gear
• 16T 32P pinion gear

If my research is correct, everything should run cool as a cucumber.

Looks good. I run 4s on the 1515 1/y and it works real good. Keeps my esc at low temps and the motor barely gets hot. I also have run it on 5s at times too, gets a little warm for my liking though, but that 5s really screams!!!!!!!

Just make sure that you do something to bleed the heat away from the Quark. Most use a combination of the RC Monster heatsink and fans. I just mounted mine on a piece of 1/4" thick aluminum that was mounted to the chassis, effectively making my whole chassis a heatsink. I didn't use any fans, but it seemed to be working. I did't get to run my Quark for long though. I had to send it in.

What happened to it?

I was a defective unit. I don't think I ran it enough to break it. I sent it to them on Monday and haven't heard anything yet. I don't even know if they will warranty it, because I told them that I was running it in an 8ight; and the guy I talked to seemed to be big on reminding me that the Monster Pro is not designed for 1/8 scale applications. I'll have to see.

I've been having a bad run of luck with equipment lately, so you really shouldn't consider my experiences as typical. MANY are running the Quark in their conversions and have had no problems, as long as they took care of the heat.

Well, sorry to hear about your problems....I read and learn...that's what these forums are all about. Thanks.

Then why in the heck would they rate it for 6s??????????? you certainly would not run 6s in an RC18T!!!! Maybe he had no idea what the heck he was talking about. I think some run it 1/8th scale don't they from here?

Thanks. What gets hot when you run 5s on your quark?

Battery?
Motor?
ESC?