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  (#31)
zeropointbug
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06.07.2009, 02:03 PM

And ultimately your power is limited by your batteries, always has, always will be.... wait, clean my mouth out, not so much anymore with these 40C lipo's.


“The modern astrophysical concept that ascribes the sun’s energy to thermonuclear reactions deep in the solar interior is contradicted by nearly every observable aspect of the sun.” —Ralph E. Juergens
   
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  (#32)
killajb
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06.07.2009, 05:20 PM

I agree that batteries are more often than not, the weakest link in a brushless system these days. I asked about the Hacker C50 XL because I recently picked up one brand new for under one-fifty, a 10 XL (1650kv) with 5mm shaft. I have a Neu 1515 2.5d, a Tekno Neu 2d and a Medusa 36-60-1600 and just wanted something different to run in another vehicle. I could have gone with a CC 2200, but since I'm running 6s, wanted to keep things from winding up so much. I haven't tried Lehner yet, and probably won't unless one comes floating by for a steal.
   
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  (#33)
lincpimp
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06.07.2009, 07:35 PM

Hmm, ZPB, I am not sure if I can concur with your statement. I think you are forgetting to throw efficiency in the mix.

My best example to date is the muggy I run. MMM with 6s 4500 30c flightpower lipo. I ran a Hacker c50 11xl and a neu 1521 1y. Same gearing, almost the same observed top speed, so kv must be pretty close with these motors. Since batt, esc, and motor temps were lower with the Neu I have to deduce that it is more efficient. The Hacker seemed to accelerate slightly faster, but since it was running warmer and the esc and batt were warmer it must have been pulling more amps to do this. The neu has more torque, no doubt about that, it will pull the wheels up at a higher speed than the hacker will.

I have owned 2 lehner motors, and they appear to be designed the same way as the hacker c50 series. Segmented magnet, and nicely laid windings. I did not run the lehners much, and did not have neus at the time to compare. I think the material quality of the winding must be better in the Lehner as they do run a bit cooler than the Hackers. I have run quite a few Hacker c50 L cans and think they are better than the medusa 60mm motors for buggy use.

I think that Plett makes a better motor than Neu, not much, but I did notice a difference. Problem with plett is the lack of kv choice. In the end I think Neu is the best motor for a larger heavier vehicle. A 1521 1y on 6s lipo with a MMM will move pretty much any 1/8 monster truck, and not have issues with big tires. That is what I will continue to run in my LST and Muggy.

If you (Byte) can get service from Lehner where you are go for it. If one of the plett models will fit the bill I would probably go for that over the lehner. Not sure about Hackers prices, if they are the same as the lehner prices I think the leher is a better motor.

Plett do make the best looking motor I have seen, very sexy!
   
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  (#34)
Romster
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08.22.2009, 01:32 PM

I Love these Lehner motor!!! Total of 5 motors...
I run a Lehner Hi-amp 6 turn 1950
or a Lehner Hi-amp 11 turn 1950 in a custom built Lightning Truggy.

-RC8 Rc-Monster conversion chassis
very rare hard to find Lehner Hi-amp 7 turn 1940 with 5mm shaft

-Ofna Gtp with Lehner Hi-amp 7 turn 1940 with 5mm shaft.

-Custom BL 1/8 on road Sportwerks Mayhem with Lehner Hi-amp 8 turn with 4mm shaft.

Only one flaw I could find on these motors are the bearings.
If you want to replace them you can not find them.
   
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  (#35)
aqwut
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08.22.2009, 03:31 PM

Out of all the motors I've had/have.. My favourite are the Lehner motors... I've always had great luck with them motors... And when used properly, the efficiencies were just excellent... The Neus are nice too, but I like the lehner motors more... Like some other said, the only draw back were the old 4mm shafts.. that's was too odd.... the 5mm, 8mm and 10mm shafts are great... +1 for LMT..


The Power of BRUSHLESS!!!!!
http://www.geocities.com/aqwut
1HP (electric) = 746 Watts.
Everything is brushless!!
   
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  (#36)
Finnster
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08.22.2009, 06:11 PM

Quote:
Originally Posted by Metallover View Post
I have heard the lehner motor compare to Medusa motors. Some people really like them and some people don't. The 2-pole design has it's advantages and disadvantages.
I've had a 1920 LMT and a Medusa 50mm motor in my crt .5. Without a doubt the LMT was a better motor. The power out of that little thing was amazing.

Granted the medusa was a good motor, but its not an LMT. I haven't used a LMT on 1/8ths to compare to other Neus and Medusas, but its got to be close to Neu or better.

One thing tho, make sure you get a hi-amp version. I killed the solder traces on my non-HiAmp 1920 w/ too many amps and cried for a week.
   
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  (#37)
aqwut
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08.22.2009, 11:08 PM

The Hi-Amp version is AWESOME, period...


The Power of BRUSHLESS!!!!!
http://www.geocities.com/aqwut
1HP (electric) = 746 Watts.
Everything is brushless!!
   
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  (#38)
Ryu James
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08.23.2009, 01:05 AM

i have owned several Neu 1512's, 1515's, a 1527, 2215, etc. so after running only Neu i wanted to try some Hacker and Lehner motors. I bought a hacker b50 xl, a c50 xl and also picked up a huge lehner 2250 for my truggy. so i switched out my neu 1515 1y from my rc8t and put in the lehner 2250. i ran it only 5 minutes and it wasnt as fast as my neu, not as torquey, and had higher temps. i immediately took it out. i think the motor was a great motor still but i attribute the differences to it being 2 pole whereas the Neus are 4 pole motors. i dont know a lot about motors but i have heard that 4 pole have better low end grunt. not sure if this is true but my smaller neu seemed much more powerful than the lehner i tried. so now i am just waiting on a motor mount to put my hacker c50 xl 7turn in my losi 8b 2.0. it is also 2 pole and currently i have a neu 1515 1y in my buggy. everyone has been telling me that the hackers are insane fast. so i am hoping i am not disappointed. i really thought i would get more out of these german motors. with real cars i have only owned german made BMWs and Audis for years now and when it comes to real motors the germans squash american cars but so far with RC i am not convinced. i am hoping this hacker convinces me better.

but again its all prefernece. aqwut actually bought that lehner from me and that same week he bought a bunch of Neu 1527s and as he says above he likes lehners better. so maybe it is just a preference thing more than actual performance, idk?

anyway, so far my choice would be Neu if you are able to get them. and as far as getting them serviced i have been driving mine for a year now and have not had any issues. hopefully they continue to perform as they have.


Jammin SCRT10 Neu 1512 1y
Losi Ten-T SCT conversion Neu 1512 1y

Last edited by Ryu James; 08.23.2009 at 01:07 AM.
   
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  (#39)
aqwut
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08.23.2009, 01:36 AM

Like said earlier in the thread, you are limited by your battery & ESC... any of these motors can push out some serious power... even the cheap motors.. I have my 2280-5 HA, and I don't think any Neu motor of the same weight could touch it...

I know by experience you really have to push some serious amps into the Hi-Amp motors to get a good efficiency.... less than 60Amps in that 2250-6 HA would cause heat issues...

Hey Ryu, that 2250 I got from you is powering my 1/5th scale... :) the 1527 powered the 1/5th scale as well. I found that the 1527 1.5D had noticeably more power at the start when compared the the 2250-6 HA, but soon after it started moving at maybe 20+ KPH the lehner Hi-Amp motor had more power, even being a few grams lighter... But that's just what I notice...

Lehner, Hacker, Neu, Plettenberg... they're all great prices.. but for the high quality motors(best bang for the buck), I would say get a neu motor.... I would keep buying neu motors just because of the great selling price..... but I would never hesitate to buy another Lehner motor either... Man, you know what..

THEY ARE ALL GREAT MOTORS!!! I like them all..


The Power of BRUSHLESS!!!!!
http://www.geocities.com/aqwut
1HP (electric) = 746 Watts.
Everything is brushless!!
   
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Old
  (#40)
Byte
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08.23.2009, 05:24 AM

Wow, this thread is a bit old... Anyway, I'm also experimenting with some motors. Now I've got a Pletti Bigmaxximum in my LST. (Runs awesome cool and amazing power!) And a few weeks ago I bought a Hacker C50 14.4V. I'm thinking of buying a E-Maxx or something and put it in there, or I might put it in my Rustler VXL on 3S I hope that I'll get some NEU's and Lehner's in the future to compare some of these motors; Hacker, Lehner, Neu, Plettenberg
   
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  (#41)
snellemin
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08.23.2009, 02:12 PM

The C50 14.4 Hacker motors are nice. Pops wheelies like nothing in my crt.5. Plenty of fun in my Rustler.
Having played with the C50 L Hacker and Plettenberg motor, I have to say that both are near identical in my GTP. The Tekno neu's that I have used have uber chassis twisting torque, but spools up a bit slower.


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GTP-Pletty Big Maxximum+RX8. GTP-C50-6L Hacker+RX8. CRT.5-Pro4+ZTW esc.
24s2p EVG SX 49.6mph Ebike.
18s4p Raptor 60mph Ebike. 11.5KW
   
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  (#42)
Romster
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09.02.2009, 09:50 PM

Just wanted to let some people know. I saw a brand new Lehner 2250 Hi-amp motor on ebay today. Not sure what turn it is.
hope this helps.. :)
   
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  (#43)
Ryu James
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09.03.2009, 02:15 AM

as mentioned in my previous post i had a hacker that i hadnt tried yet that i finally got put in my buggy and i am very impressed. much more so that the lehner i tried.

i am wondering though. i have been hearing that if the load is too light that a motor will run hot. could it be that the reason my lehner ran hot was becuase the load was too small? i mean, i was running a lehner 2250 in a truggy. i thought this would be fine but i dont know. any thoughts?


Jammin SCRT10 Neu 1512 1y
Losi Ten-T SCT conversion Neu 1512 1y
   
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  (#44)
What's_nitro?
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09.03.2009, 10:11 AM

Ryu, I'd say the 2240 was not loaded properly if it ran hot. Those motors work well in 1/5, so a 1/8 truggy, unless you're doing speed runs, is a little on the light side. If you can get your hands on a 1950, with an appropriate kV, that would work much better. I had a Basic XL 2800 kV in my aluminum Rustler and it ran hot on 4s, even geared for 80mph. I didn't want to go any faster, though.
   
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  (#45)
aqwut
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09.03.2009, 12:39 PM

Quote:
Originally Posted by Ryu James View Post
as mentioned in my previous post i had a hacker that i hadnt tried yet that i finally got put in my buggy and i am very impressed. much more so that the lehner i tried.

i am wondering though. i have been hearing that if the load is too light that a motor will run hot. could it be that the reason my lehner ran hot was becuase the load was too small? i mean, i was running a lehner 2250 in a truggy. i thought this would be fine but i dont know. any thoughts?
Definately, especially if it was a Hi Amp like yours... Have you ever measured the amp draw from your setup... Ryu James, I had tried your 2250 in a 5th scale on 6S and the motor was not hot at all.. only the batteries and ESC were... Only reason I knew this was my first 2280 Hi-Amp I had it in an E-maxx, and I couldn't figure out why it was getting hot so fast.. but after some reading and testing, I know that the Hi-Amp motors are just amazing. If you had gotten the regular 2250, you're setup probably would've been cool.. Had a 1950-7-HA in a Cen Matrix Truggy, and it was great.. no heat issues at all...

Back in the day I had a 1930-5/ 9 wind... Had it soldered for 9 Wind and ran 18 cells on it... it had no heat issues powering a 15Lb Maxx back then...


The Power of BRUSHLESS!!!!!
http://www.geocities.com/aqwut
1HP (electric) = 746 Watts.
Everything is brushless!!

Last edited by aqwut; 09.03.2009 at 12:43 PM.
   
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