Results 1 to 35 of 35
  1. #1
    RC poster
    Join Date
    Nov 2020
    Posts
    7

    Exclamation TRX4 engine problem

    Hey guys, how is it going?
    I would like to change the standard motor for my TRX4 Land Rover Defender to brushless, since the original motors last only a week for my son ....i called tech support, and they told me that there is no brushless motor for this model. So, i was wondering, maybe somebody tried to plug in a different brushless motor from a different model??? If, so, pls let me know the motor number, and what kind of modifications are needed in order to install it properly. Thanks.
    Myrchik

  2. #2
    RC Turnbuckle Jr. Greatscott's Avatar
    Join Date
    Mar 2004
    Location
    N. Idaho... Da Sticks!
    Posts
    8,151
    WELCOME TO THE FORUMS...

    To run a brushless motor you need to have a brushless ESC, the XL5 is brushed only. So, to go brushless, you'll need to get a brushless ESC/motor combo.

    What is your budget?

    The full-on Gucci option is the Castle Mamba-X with a 1800kv motor. It is pricy, but it is a combo that is hard to beat.
    Submarine Qualified, Chief Inducted, Navy Retired

  3. #3
    RC Qualifier ElectricPropils's Avatar
    Join Date
    Oct 2020
    Location
    Dallas TX
    Posts
    403
    Quote Originally Posted by myrchik View Post
    Hey guys, how is it going?
    I would like to change the standard motor for my TRX4 Land Rover Defender to brushless, since the original motors last only a week for my son ....i called tech support, and they told me that there is no brushless motor for this model. So, i was wondering, maybe somebody tried to plug in a different brushless motor from a different model??? If, so, pls let me know the motor number, and what kind of modifications are needed in order to install it properly. Thanks.
    Myrchik
    If I were you I would just stick to brushed, it's way cheaper than having to buy a complete sensored brushless motor combo.
    The present is theirs; the future, is mine.

  4. #4
    RC Qualifier ElectricPropils's Avatar
    Join Date
    Oct 2020
    Location
    Dallas TX
    Posts
    403
    Quote Originally Posted by myrchik View Post
    Hey guys, how is it going?
    I would like to change the standard motor for my TRX4 Land Rover Defender to brushless, since the original motors last only a week for my son ....i called tech support, and they told me that there is no brushless motor for this model. So, i was wondering, maybe somebody tried to plug in a different brushless motor from a different model??? If, so, pls let me know the motor number, and what kind of modifications are needed in order to install it properly. Thanks.
    Myrchik
    Here is the original motor, to ensure a long lifetime you will want to make sure the temperatures don't get to high (if the motor is too hot to touch then it is too hot to run). Also try to spray some sort of bearing lubricant or oil onto the motor bushings every once in a while.

    https://traxxas.com/products/parts/3975R
    The present is theirs; the future, is mine.

  5. #5
    RC Champion RCWilly's Avatar
    Join Date
    Feb 2019
    Location
    California Bay Area
    Posts
    1,039
    As Greatscott said, you will need to change the ESC in order to run a brushless motor. Of course, staying brushed will be cheaper. A good replacement motor would be the Holmes Hobbies Trailmaster Sport 21T 550: https://www.amainhobbies.com/holmes-...100046/p716283

    It has bearings instead of bushings, and the magnets are stronger and are placed in a good position. It has a good low down torque and is very smooth.

    For brushless, there are unsensored and sensored brushless systems. Sensored brushless systems are the most ideal for starting and stopping at low speeds since the motor features a sensor board that is able to track the motor position. Brushed motors don't need this, because the brushes are touching the rotor, hence the name brushed. A sensor wire then feeds the information to the ESC, making the motor have smoother low-speed start-ups. With the extra sensor board and sensored capabilities, it will be much more expensive than the brushed and brushless sensorless motors. A few great sensored choices are the Castle Mamba X (choose the motor KV according to your driving style, 1800kv is ideal for low speed crawling), and the Hobbywing Axe. Other more affordable options include the Castle Mamba Micro X with the Slate motor (may heat up more than the Mamba X), and the Hobbywing Fusion 2-in-1 (this ESC and motor are built in together as one unit)

    If smooth low-speed startups aren't as important to you, you can get sensorless brushless motors for much cheaper
    Everyday's a gift, thus now is called the present.

  6. #6
    RC Champion
    Join Date
    Feb 2020
    Location
    Canary Islands, Tenerife, Spain.
    Posts
    1,798
    Quote Originally Posted by myrchik View Post
    Hey guys, how is it going?
    I would like to change the standard motor for my TRX4 Land Rover Defender to brushless, since the original motors last only a week for my son ....i called tech support, and they told me that there is no brushless motor for this model. So, i was wondering, maybe somebody tried to plug in a different brushless motor from a different model??? If, so, pls let me know the motor number, and what kind of modifications are needed in order to install it properly. Thanks.
    Myrchik
    Hi mate, as Greatscott says, you need to buy a brushless combo, ESC and motor, there are various options in the market:

    Hobbywing AXE FOC.
    https://www.hobbywingdirect.com/coll...r-rock-crawler

    Castle Mamba.
    https://www.castlecreations.com/en/mamba-x-1

    TEKIN.
    https://www.teamtekin.com/crawlproduct.html

  7. #7
    RC Racer
    Join Date
    Aug 2020
    Posts
    108
    get a hobbywing axe system it will turn into a unstoppable monster

  8. #8
    RC poster
    Join Date
    Nov 2020
    Posts
    7
    Hello once again guys. Thanks for all your replies, now i am lost again ;( I have checked all the links you have sent, and noticed that there are many Mamba X combos, with different KV...for instance this:
    https://www.castlecreations.com/en/m...bo-010-0155-01
    1406-4600 is it the KV range? So, i have decided to go with brushless combo, now which one? which one will fit my TRX4, i mean dimensions, or they are all the same size? If you could send me the link to the exact motor/esc combo, would be the best!!!
    Also, i would rather stick to a combo that would LAST longer, and i assume that brushless motors last reallllllly long, the reason i would like to run my crawler longer, is because i live in Europe, and every time something burns, i need to order it from the States, and it takes forever to ship here, plus extra money every time for shipping, and taxes at the border....so i would like to get something that would last long, buy once and have it forever. Also, if i will get one of recommended combos, is it easy to install, or it requires extra skills?
    Thanks once again.
    myrchik.

  9. #9
    RC Champion
    Join Date
    Feb 2020
    Location
    Canary Islands, Tenerife, Spain.
    Posts
    1,798
    Quote Originally Posted by chris5100 View Post
    get a hobbywing axe system it will turn into a unstoppable monster
    Of course, in the 550 3300kv size, it is.

  10. #10
    RC Champion
    Join Date
    Feb 2020
    Location
    Canary Islands, Tenerife, Spain.
    Posts
    1,798
    Quote Originally Posted by myrchik View Post
    Hello once again guys. Thanks for all your replies, now i am lost again ;( I have checked all the links you have sent, and noticed that there are many Mamba X combos, with different KV...for instance this:
    https://www.castlecreations.com/en/m...bo-010-0155-01
    1406-4600 is it the KV range? So, i have decided to go with brushless combo, now which one? which one will fit my TRX4, i mean dimensions, or they are all the same size? If you could send me the link to the exact motor/esc combo, would be the best!!!
    Also, i would rather stick to a combo that would LAST longer, and i assume that brushless motors last reallllllly long, the reason i would like to run my crawler longer, is because i live in Europe, and every time something burns, i need to order it from the States, and it takes forever to ship here, plus extra money every time for shipping, and taxes at the border....so i would like to get something that would last long, buy once and have it forever. Also, if i will get one of recommended combos, is it easy to install, or it requires extra skills?
    Thanks once again.
    myrchik.
    Mate, 1406 is the size nomenclature in the Castle motors, you can see the size chart below in the link you put, 4600kv is the rating of this motor model, maybe a little high for crawling IMHO. If you live in Europe, maybe Hobbywing AXE Combo be better for you, the 550 3300kv is a beast, an amount of power and great control in low rpm.

    For me, the best options are:

    Castle.
    https://www.castlecreations.com/en/m...bo-010-0155-11

    Hobbywing AXE.
    https://www.hobbywingdirect.com/prod...r-rock-crawler

  11. #11
    RC poster
    Join Date
    Nov 2020
    Posts
    13
    I’d say if the motors are only lasting a week there’s a different problem than the fact that you’re running brushed. No one has asked what battery or pinion/spur combo you’re using. Can you tell us? A huge pinion on 2s will burn up any motor. Have you over sized the tires or overdriven the axles/portals?


    Sent from my iPhone using Tapatalk

  12. #12
    RC Qualifier ElectricPropils's Avatar
    Join Date
    Oct 2020
    Location
    Dallas TX
    Posts
    403
    Quote Originally Posted by austin92 View Post
    I’d say if the motors are only lasting a week there’s a different problem than the fact that you’re running brushed. No one has asked what battery or pinion/spur combo you’re using. Can you tell us? A huge pinion on 2s will burn up any motor. Have you over sized the tires or overdriven the axles/portals?


    Sent from my iPhone using Tapatalk
    I assume since he lets his kid run it that is what is burning up the motor, kids tend to not know throttle control and just full throttle everywhere.

    Of course his kid could be a good driver and something else could be wrong but that is just my two cents.
    The present is theirs; the future, is mine.

  13. #13
    RC Champion RCWilly's Avatar
    Join Date
    Feb 2019
    Location
    California Bay Area
    Posts
    1,039
    Quote Originally Posted by austin92 View Post
    I’d say if the motors are only lasting a week there’s a different problem than the fact that you’re running brushed. No one has asked what battery or pinion/spur combo you’re using. Can you tell us? A huge pinion on 2s will burn up any motor. Have you over sized the tires or overdriven the axles/portals?


    Sent from my iPhone using Tapatalk
    Good point, I didn't think of that at first.

    I would like to add that trying to crawl on 2nd gear will put excessive strain on the motor. Brushed motors die very quickly if it is carrying too much load, especially if the motor stops spinning even when the throttle is applied.
    Everyday's a gift, thus now is called the present.

  14. #14
    RC poster
    Join Date
    Nov 2020
    Posts
    7
    Everything is stock.

  15. #15
    RC poster
    Join Date
    Nov 2020
    Posts
    7
    If i go with this combo:
    https://www.castlecreations.com/en/m...bo-010-0155-11, do i need to change the battary too? It says 25.2V is it Volts? Or?

  16. #16
    RC poster
    Join Date
    Nov 2020
    Posts
    7
    Quote Originally Posted by Juanmacine View Post
    Mate, 1406 is the size nomenclature in the Castle motors, you can see the size chart below in the link you put, 4600kv is the rating of this motor model, maybe a little high for crawling IMHO. If you live in Europe, maybe Hobbywing AXE Combo be better for you, the 550 3300kv is a beast, an amount of power and great control in low rpm.

    For me, the best options are:

    Castle.
    https://www.castlecreations.com/en/m...bo-010-0155-11

    Hobbywing AXE.
    https://www.hobbywingdirect.com/prod...r-rock-crawler
    So, XERON AXE 550 or Hobbywing AXE 550 combo for $229.99?

  17. #17
    RC Qualifier
    Join Date
    Oct 2018
    Posts
    332
    No, that's max volts of the esc only.. That'll work fine on your 2s battery. If you ever in the future run a 3s battery, you'll want to gear down (smaller pinion). Might even want to get a smaller pinion even on 2s. But all stock you'll be fine. Will need to solder a connector on the esc to match your batteries. Any hobbyshop can do that for you if you cannot solder. But soldering is an easy to learn skill that is very helpful in this hobby. Should look into it if you haven't already.

    Sent from my SM-G970U using Tapatalk

  18. #18
    RC poster
    Join Date
    Nov 2020
    Posts
    7
    Quote Originally Posted by Juanmacine View Post
    Hi mate, as Greatscott says, you need to buy a brushless combo, ESC and motor, there are various options in the market:

    Hobbywing AXE FOC.
    https://www.hobbywingdirect.com/coll...r-rock-crawler

    Castle Mamba.
    https://www.castlecreations.com/en/mamba-x-1

    TEKIN.
    https://www.teamtekin.com/crawlproduct.html
    By the way, at this link product is unavailable
    https://www.hobbywingdirect.com/prod...r-rock-crawler

  19. #19
    RC Champion
    Join Date
    Feb 2020
    Location
    Canary Islands, Tenerife, Spain.
    Posts
    1,798
    Quote Originally Posted by myrchik View Post
    If i go with this combo:
    https://www.castlecreations.com/en/m...bo-010-0155-11, do i need to change the battary too? It says 25.2V is it Volts? Or?
    You don't need to change battery, use you want in each case, with a limit of 6S (25,2).

    Quote Originally Posted by myrchik View Post
    By the way, at this link product is unavailable
    https://www.hobbywingdirect.com/prod...r-rock-crawler
    https://www.ebay.com/sch/i.html?_fro...xe+550&_sop=15

    https://www.modelestrecho.net/es/var...bless-v11.html

    https://www.rtrvalladolid.es/product...er-3300kv.html

    https://rc-pro.es/electronica/combos...system-crawler

    https://www.modelspain.com/es/variad...er-3300kv.html

  20. #20
    RC poster
    Join Date
    Nov 2020
    Posts
    13
    Quote Originally Posted by myrchik View Post
    Everything is stock.
    I’d try something from Holmes crawmaster line 13-16t and go down a tooth or 2 on the pinion. The sport motors are like 15$ and the next step up is 50$ but it’s rebuildable. Locking out second gear will probably help motor life too. If you are set on brushless it’s a great upgrade, just expensive.


    Sent from my iPhone using Tapatalk

  21. #21
    RC Turnbuckle Jr. rag6's Avatar
    Join Date
    Mar 2008
    Location
    Accepting requests for bashing at GREENWOOD BASHPLEX in Pittsburgh PA!! Check the thread in the track buddy forum and reply there or pm
    Posts
    15,607
    Id say, that after everything I've read... This guy doesn't want brushless... He wants a better, longer lasting brushed motor.

    Although he wants no maintenance, but oiling a bearing or bushing from time to time, maybe is not a deal breaker, to save a bunch of money to get the motor durability he asked for.

    I run the HH 21t 550. It is much beefier than stock. It has 1 bearing and 1 bushing. It has 0° timing. The stock motor has advanced (retarded?) Timing. I feel the stock motor has more raw power, but the HH has finer control in the lower and middle of the power band. It makes for smoother throttle control over rougher obstacles. These are about 20$... Plus his costs...must be a couple hundred dollars US cheaper.

    His original concern was durability, not performance.



    Sent from my moto e5 cruise using Tapatalk
    Ya can't polish fertilizer...

  22. #22
    RC Qualifier ElectricPropils's Avatar
    Join Date
    Oct 2020
    Location
    Dallas TX
    Posts
    403
    Quote Originally Posted by rag6 View Post
    Id say, that after everything I've read... This guy doesn't want brushless... He wants a better, longer lasting brushed motor.

    Although he wants no maintenance, but oiling a bearing or bushing from time to time, maybe is not a deal breaker, to save a bunch of money to get the motor durability he asked for.

    I run the HH 21t 550. It is much beefier than stock. It has 1 bearing and 1 bushing. It has 0° timing. The stock motor has advanced (retarded?) Timing. I feel the stock motor has more raw power, but the HH has finer control in the lower and middle of the power band. It makes for smoother throttle control over rougher obstacles. These are about 20$... Plus his costs...must be a couple hundred dollars US cheaper.

    His original concern was durability, not performance.



    Sent from my moto e5 cruise using Tapatalk
    That's why I recommended just the stock motor but I stated that he should just lubricate the bushings every once in a while. Your motor is probably a better choice, especially if it has bearings. I don't know how much longer I have with my stock motor since I keep it at pretty high RPMs and I've had it for the better half of two years.
    The present is theirs; the future, is mine.

  23. #23
    RC Champion
    Join Date
    Feb 2020
    Location
    Canary Islands, Tenerife, Spain.
    Posts
    1,798
    I think the brushless mod is almost a mandatory, best in all aspects.

  24. #24
    RC Champion RCWilly's Avatar
    Join Date
    Feb 2019
    Location
    California Bay Area
    Posts
    1,039
    Quote Originally Posted by Juanmacine View Post
    I think the brushless mod is almost a mandatory, best in all aspects.
    Really depends on personal opnion, sensored brushless and brushed still feel (and are) very different, though I would agree that brushless is very nice.
    Everyday's a gift, thus now is called the present.

  25. #25
    RC Turnbuckle Jr. Greatscott's Avatar
    Join Date
    Mar 2004
    Location
    N. Idaho... Da Sticks!
    Posts
    8,151
    Quote Originally Posted by rag6 View Post
    Id say, that after everything I've read... This guy doesn't want brushless... He wants a better, longer lasting brushed motor.

    Although he wants no maintenance, but oiling a bearing or bushing from time to time, maybe is not a deal breaker, to save a bunch of money to get the motor durability he asked for.

    I run the HH 21t 550. It is much beefier than stock. It has 1 bearing and 1 bushing. It has 0° timing. The stock motor has advanced (retarded?) Timing. I feel the stock motor has more raw power, but the HH has finer control in the lower and middle of the power band. It makes for smoother throttle control over rougher obstacles. These are about 20$... Plus his costs...must be a couple hundred dollars US cheaper.

    His original concern was durability, not performance.



    Sent from my moto e5 cruise using Tapatalk
    This motor with a HW1080 ESC, easy-peasy setup, will run all day, all night, and twice on Sundays.

    Just keep in mind, what normally kills these motors are lack of maintenance. They are advertised as 'waterproof', not 'maintenance-proof'. The harsher the conditions you run in, water, snow, mud, sand, the more maintenance they will need. Don't let that scare you away, really you just need to clean the motor more often.

    Quote Originally Posted by Juanmacine View Post
    I think the brushless mod is almost a mandatory, best in all aspects.
    For people like you and I, yes. It brings a little tear to my eye and crushes my soul just a little bit when I run a brushed rig. But, for the OP, who is just getting his feet we, brushless might be more that what he needs or really wants right now. Basically, if I am interpreting his post correctly, he is wanting more reliability, and there are ways to achieve that without throwing on the added learning curve of going brushless. Going with a HH motor and HW1080 ESC proves a relatively easy install and setup process, and gives him some practical wrenching experience. Later down the road, when he was craving better performance and his RC learning curve isn't so steep, he can upgrade to a brushless system.

    JMHO...
    Submarine Qualified, Chief Inducted, Navy Retired

  26. #26
    RC Enthusiast
    Join Date
    Sep 2020
    Location
    Kent
    Posts
    24
    Another cause of standard motor faliure is seized axle bearings

  27. #27
    RC Competitor
    Join Date
    Oct 2011
    Posts
    85
    I personally do not like brushless in the crawler. I like the brushed. It is inexpensive, and I can beat the **** out of it, and if it breaks? Not super upset. Now my bashers brushless is mandatory, but I then break about everything else when I hit stuff at speed. Get what makes you happy, and what you can afford. Have fun. Also like the above says lube your rc periodically.

  28. #28
    RC Champion RCWilly's Avatar
    Join Date
    Feb 2019
    Location
    California Bay Area
    Posts
    1,039
    Quote Originally Posted by allyeajackvk View Post
    Can someone help me with my post?
    Please elaborate? I'm not exactly sure what you mean. Are you not sure about how to post pictures... or something else?
    Everyday's a gift, thus now is called the present.

  29. #29
    RC Qualifier ElectricPropils's Avatar
    Join Date
    Oct 2020
    Location
    Dallas TX
    Posts
    403
    Quote Originally Posted by RCWilly View Post
    Please elaborate? I'm not exactly sure what you mean. Are you not sure about how to post pictures... or something else?
    He posted asking about a body.

    https://forums.traxxas.com/showthrea...t-Body-This-Is
    The present is theirs; the future, is mine.

  30. #30
    RC Champion
    Join Date
    Feb 2020
    Location
    Canary Islands, Tenerife, Spain.
    Posts
    1,798
    Quote Originally Posted by RCWilly View Post
    Really depends on personal opnion, sensored brushless and brushed still feel (and are) very different, though I would agree that brushless is very nice.
    Of course, each opinion is a world.

  31. #31
    RC Champion
    Join Date
    Feb 2020
    Location
    Canary Islands, Tenerife, Spain.
    Posts
    1,798
    Quote Originally Posted by Greatscott View Post
    For people like you and I, yes. It brings a little tear to my eye and crushes my soul just a little bit when I run a brushed rig. But, for the OP, who is just getting his feet we, brushless might be more that what he needs or really wants right now. Basically, if I am interpreting his post correctly, he is wanting more reliability, and there are ways to achieve that without throwing on the added learning curve of going brushless. Going with a HH motor and HW1080 ESC proves a relatively easy install and setup process, and gives him some practical wrenching experience. Later down the road, when he was craving better performance and his RC learning curve isn't so steep, he can upgrade to a brushless system.

    JMHO...
    I agree with you in this, for the newbies maybe too much a brushless system, the 1080 with a good 5 slot motor maybe enough.

  32. #32
    RC poster
    Join Date
    Nov 2020
    Posts
    18
    I agree with many above. Find out what’s the cause before switching to new aftermarket brushed or brushless motor.
    Here a good Traxxas article thats easy to follow , TRX6 with Velineon VXL-3s , might be too much for TRX4 I think. I suggest stick with brushed motor like Holmes Trailmaster sport 550 motor for young beginners.


    https://traxxas.com/news/brushless-trx6
    Last edited by JCM5; 11-19-2020 at 05:12 PM.

  33. #33
    RC Qualifier TITANIUM94010's Avatar
    Join Date
    Sep 2019
    Location
    San Francisco CA
    Posts
    535
    I don't want to impolite or anything, but to bluntly put it,
    The VXl system isn't really any good for crawlers as it's unsensored and has a pretty high KV, making it's low speed control pretty bad and jittery.

    Although the HH Trailmaster motors are very good.
    Jumping: maneuver and pray it won't break.

  34. #34
    RC poster
    Join Date
    Nov 2020
    Posts
    18
    Quote Originally Posted by TITANIUM94010 View Post
    I don't want to impolite or anything, but to bluntly put it,
    The VXl system isn't really any good for crawlers as it's unsensored and has a pretty high KV, making it's low speed control pretty bad and jittery.

    Although the HH Trailmaster motors are very good.
    Not at all

  35. #35
    RC Champion
    Join Date
    Feb 2020
    Location
    Canary Islands, Tenerife, Spain.
    Posts
    1,798
    Quote Originally Posted by JCM5 View Post
    I agree with many above. Find out what’s the cause before switching to new aftermarket brushed or brushless motor.
    Here a good Traxxas article thats easy to follow , TRX6 with Velineon VXL-3s , might be too much for TRX4 I think. I suggest stick with brushed motor like Holmes Trailmaster sport 550 motor for young beginners.


    https://traxxas.com/news/brushless-trx6
    Wowwwwwwww.

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •