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.

Re: Blowing up motors??? what to do?
 

Try a Traxxas 550 21t on 2s.

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

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.

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?

Re: Blowing up motors??? what to do?
 

in addition what is better reverse rotation or standard for the traxxas 550 21t

Re: Blowing up motors??? what to do?
 

Try the Holmes hobbies cheap throw aways http://www.rpphobby.com/product_p/hh-110100019.htm

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Re: Blowing up motors??? what to do?
 

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...

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.

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.

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.

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

Re: Blowing up motors??? what to do?
 

You may want to look into proper gearing ratios as well.

Re: Blowing up motors??? what to do?
 

definitely on the list

Re: Blowing up motors??? what to do?
 

What gearing are you using just now?
The RC4WD motors are fine on 3s when geared correctly.

Re: Blowing up motors??? what to do?
 

Gearing is stock its on my list to fix that though just not sure how low to go i need to do more research the rock where I'm at is fairly sticky

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

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.

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.

Re: Blowing up motors??? what to do?
 

Without an extended front output you're not going to fit that 68t spur.