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09-21-2017, 07:11 PM | #1 |
Newbie Join Date: Sep 2017 Location: Flagstaff
Posts: 12
| Blowing up motors??? what to do?
So my wraith is running 3s lipo 30c on a 55 turn rc4wd cheap motor which should be giving me enough torque for the very slow technical crawling I do. I dont do bashing fast stuff often but I am having an issue where it keeps smoking out the motor before the end of a pack. I would think a 55 turn would be sufficient but maybe not? its stock gearing with a dynamic crawling esc.
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09-21-2017, 07:43 PM | #2 |
I wanna be Dave Join Date: Jul 2014 Location: Deep South
Posts: 3,444
| Re: Blowing up motors??? what to do?
Try a Traxxas 550 21t on 2s.
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09-21-2017, 08:30 PM | #3 |
Newbie Join Date: Sep 2017 Location: Flagstaff
Posts: 12
| Re: Blowing up motors??? what to do?
so does that motor fix the problem and does it still crawl well? 21 t wouldnt give much torque is my thought
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09-21-2017, 08:36 PM | #4 |
Quarry Creeper Join Date: Jun 2016 Location: Tacoma
Posts: 267
| Re: Blowing up motors??? what to do?
The RC4WD 55T motor isn't really rated for 3S. A Traxxas 550 21T would have plenty of torque since its a physically larger motor vs the 540-size RC4WD one.
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09-21-2017, 08:38 PM | #5 |
Newbie Join Date: Sep 2017 Location: Flagstaff
Posts: 12
| Re: Blowing up motors??? what to do?
The RC4WD 55T motor isn't really rated for 3S. A Traxxas 550 21T would have plenty of torque since its a physically larger motor vs the 540-size RC4WD one. thank you for the input I didn't catch the detail of the traxxas being a larger can size what kind of modification to the chassis would have to be made to fit the larger motor if any? |
09-21-2017, 08:43 PM | #6 |
Newbie Join Date: Sep 2017 Location: Flagstaff
Posts: 12
| Re: Blowing up motors??? what to do?
in addition what is better reverse rotation or standard for the traxxas 550 21t
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09-21-2017, 08:46 PM | #7 |
Quarry Creeper Join Date: Mar 2016 Location: juneau
Posts: 316
| Re: Blowing up motors??? what to do?
Try the Holmes hobbies cheap throw aways http://www.rpphobby.com/product_p/hh-110100019.htm Sent from my SM-G892A using Tapatalk |
09-21-2017, 08:50 PM | #8 | |
I wanna be Dave Join Date: Jul 2014 Location: Deep South
Posts: 3,444
| Re: Blowing up motors??? what to do? Quote:
I don't think it matters. Those are for a dual marine setup, IIRC, but shouldn't matter for land based. But I would err on the side of caution and not get the reverse rotation. I searched and searched when I had mine and on some Traxxas boards people said that it is not 3s rated and has a 35t equivalent worth of winding. Or that may have been the 12t... | |
09-21-2017, 08:53 PM | #9 |
Newbie Join Date: Sep 2017 Location: Flagstaff
Posts: 12
| Re: Blowing up motors??? what to do?
They say its not but you haven't had issues? and i'm having a hard time determining what is and isn't rated because its not general information manufacturers give.
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09-21-2017, 08:57 PM | #10 |
I wanna be Dave Join Date: Jul 2014 Location: Deep South
Posts: 3,444
| Re: Blowing up motors??? what to do?
I burnt up an AE-5 ESC on 3s. Since moved the 550 to a Wraith pushed by 2s and a HobbyWing 1080. There's plenty of TQ on tap for the Wraith.
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09-21-2017, 08:57 PM | #11 |
Quarry Creeper Join Date: Jun 2016 Location: Tacoma
Posts: 267
| Re: Blowing up motors??? what to do?
I don't know if reverse rotation matters or not, but the Titan 550 21T reverse rotation is the stock motor in the TRX-4, which is rated for 3S.
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09-21-2017, 09:01 PM | #12 |
Newbie Join Date: Sep 2017 Location: Flagstaff
Posts: 12
| Re: Blowing up motors??? what to do? that motor only costs 7 dollars more than the homes hobbies and seems to be a better deal where i can run both 3s power and not burn up motors. they seem to burn up the most when i get the front end it a bind and am trying to drive out but if it is rated for 3s that shouldn't be an issue is my interpretation
Last edited by Jermalermin; 09-21-2017 at 09:01 PM. Reason: can't spell |
09-21-2017, 09:06 PM | #13 |
I wanna be Dave Join Date: Jul 2014 Location: Deep South
Posts: 3,444
| Re: Blowing up motors??? what to do?
You may want to look into proper gearing ratios as well.
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09-21-2017, 09:07 PM | #14 |
Newbie Join Date: Sep 2017 Location: Flagstaff
Posts: 12
| Re: Blowing up motors??? what to do? |
09-22-2017, 03:02 AM | #15 |
Quarry Creeper Join Date: May 2009 Location: Scotland, UK
Posts: 401
| Re: Blowing up motors??? what to do?
What gearing are you using just now? The RC4WD motors are fine on 3s when geared correctly. |
09-22-2017, 08:38 AM | #16 |
Newbie Join Date: Sep 2017 Location: Flagstaff
Posts: 12
| Re: Blowing up motors??? what to do? |
09-22-2017, 10:44 AM | #17 |
Quarry Creeper Join Date: Feb 2015 Location: Norway
Posts: 379
| Re: Blowing up motors??? what to do?
Cheap and good for the wraith 550 can,and i dare say it one of the better out there for the cheap motors. Holmes Hobbies TrailMaster Sport 550 21T Motor |
09-22-2017, 12:34 PM | #18 |
Quarry Creeper Join Date: May 2009 Location: Scotland, UK
Posts: 401
| Re: Blowing up motors??? what to do?
With general, gentle trailing, it's usually alright to run stock gearing but when doing serious crawling and running a 540 can in a Wraith, it's best to drop a few teeth on the pinion at least.
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09-22-2017, 02:27 PM | #19 |
Newbie Join Date: Sep 2017 Location: Flagstaff
Posts: 12
| Re: Blowing up motors??? what to do?
SO I have ordered a Traxxas 21T 550 can for motor replacement because if that blows up there's something else wrong in addition i am thinking i will order a 9t 32p pinion and 68t 32p spur that should get me to around 8.00 to 1.
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09-22-2017, 03:02 PM | #20 |
Quarry Creeper Join Date: May 2011 Location: Battle Ground WA
Posts: 429
| Re: Blowing up motors??? what to do?
Without an extended front output you're not going to fit that 68t spur.
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Tags |
annoying, electronic, motor, smoking, wraith |
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