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🎦 V#39 2838 Brushless Motors for 1/18 & 1/16 Scale RC Cars - RPM Tests & Comparison

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  • Опубликовано: 17 авг 2024
  • This video is a test and comparison of the highest RPM ( Revolutions Per Minute ) we can get from four 2838 size brushless motors with different KV ratings ( 3700 KV, 4500 KV, 6200 KV, 6850 KV ) using a 2S ( 7.4 volts ) Lipo Battery .
    This test will give you an idea which KV to use when upgrading your 1/18 or 1/16 scale RC car into brushless system, depending on your build, either for bashing or speed running these smaller scale rc cars. .
    Note that lower KV means less RPM but more torque while higher KV means higher RPM but less torque.
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    #brushlessmotor #test #comparison

Комментарии • 109

  • @RcModwerks23
    @RcModwerks23  3 года назад +1

    We would like to know how many viewers are using the 2838 size motors on their rc cars or planning to get one ... please hit "LIKE" and share us your "COMMENTS" ... Thanks 👌

    • @filsdedieu100
      @filsdedieu100 3 года назад +1

      Xinhelong Q901 , 902 ans 903 have a big 2845 brsuhless motor 3200 Kv , very powerfull ! :-)

    • @RcModwerks23
      @RcModwerks23  3 года назад +1

      @@filsdedieu100 that would be good for off-road driving and bashing 👍

    • @filsdedieu100
      @filsdedieu100 3 года назад +1

      @@RcModwerks23 Yes but I prefer to have her drive on a road full of gravel ; i take care of my Xinhelong :p

    • @filsdedieu100
      @filsdedieu100 3 года назад

      To stay in the spirit of your idea I am thinking of the wltoys A959 A979 ==> Brushless size 2838 (and maybe 2845) ; also A959B and 979 B ==> size 3650 brushless :-)

    • @RcModwerks23
      @RcModwerks23  3 года назад +1

      @@filsdedieu100 The A959 v/s A959-B or A979 v/s A979-B are basically the same, but the only difference are their stock motor sizes ... If you upgrade them to brushless you can install whatever motor size you want by only changing the motor mount .

  • @hashtag4830
    @hashtag4830 3 года назад

    Nice video, thanks for sharing !

  • @MA-bq8yg
    @MA-bq8yg 3 года назад

    Thanks for this wonderful test 😊😊😊

    • @RcModwerks23
      @RcModwerks23  3 года назад +1

      My pleasure 😊

    • @MA-bq8yg
      @MA-bq8yg 3 года назад

      The best 380 size motor I used is the trackstar 4400kv. I run it with a 3S lipo. I just sold my Lc Racing and I purchase an old kyosho petrol 1/8 to convert it into brushless.

    • @RcModwerks23
      @RcModwerks23  3 года назад

      I think these smaller motors can also perform well, I will also try running them in 3S

  • @norcalrc
    @norcalrc 3 года назад

    Great video with good info. Thx man

  • @filsdedieu100
    @filsdedieu100 3 года назад +1

    The GtSkytenRc 2838 + 3700 Kv is beautiful and certainly powerfull , he looks like to an X-team motor :-)

    • @RcModwerks23
      @RcModwerks23  3 года назад +1

      I alread yinstalled it earleir here in this video : studio.ruclips.net/user/videoigojCSMImSc/edit

    • @filsdedieu100
      @filsdedieu100 3 года назад +1

      @@RcModwerks23 , yeah , i will see that :-D

  • @brentanllewellyn3898
    @brentanllewellyn3898 3 года назад

    Dude..
    I needed this.
    Thanx

  • @RedPanda_00806
    @RedPanda_00806 3 года назад +1

    What do you think about Surpass combos coming with 35A ESC? I bought a 2838 4400kv and it comes with 35a but seems that any combo with 24** or 28** series comes with 35A , it will be a problem? it's that enough? Even Hobbywing combo comes with 30A

    • @RcModwerks23
      @RcModwerks23  3 года назад +1

      The smaller ESCs are ok with the 24 or 38 diameter motors as long as you dont use very high kv ratings

  • @hendraahmad1284
    @hendraahmad1284 3 года назад

    very nice video...it helps me

  • @sadlife2301
    @sadlife2301 3 года назад +1

    What size motor fit in wltoys 124019

    • @RcModwerks23
      @RcModwerks23  3 года назад

      You can also fit these 2838 motors if you want a light setup, but you only need to buy the smaller Wltoys 17T pinion ... the 3650 size motor is a direct fit since it is the same diameter as the 550 stock motor.

    • @sadlife2301
      @sadlife2301 3 года назад

      @@RcModwerks23 what pinion size for 3650

    • @RcModwerks23
      @RcModwerks23  3 года назад

      @@sadlife2301 same as stock 27T pinion

    • @sadlife2301
      @sadlife2301 3 года назад

      @@RcModwerks23 does the spur gear need to be upgraded? if yes what is the size

    • @RcModwerks23
      @RcModwerks23  3 года назад

      @@sadlife2301 the stock spur is OK, my 14001 stock spur is still ok after so many speed runs

  • @freemanwu3018
    @freemanwu3018 3 года назад +1

    Suppose the relaton between rpm and KV is correct,the voltage decreasing is 7.95v-->7.65v-->7.50v-->7.90v!how is that possible?!😅.The logical explaination is : the efficiency of two surpass motors(4500kv and 6200kv) are lower…

    • @RcModwerks23
      @RcModwerks23  3 года назад +1

      True, some brands make less efficient motors than others ... and I think this is one reason why the most efficient motor in comparison (i.e. Tenshock X-1401) cost twice compared to the other motors . I also notice the same with my 3650 motors, the cheaper ones are always slower 😆

    • @RCModSquad
      @RCModSquad 3 года назад +1

      Agreed. The theoretical RPM is based on actual voltage of the battery not the nominal voltage of the battery. I bench SuppIy would make for a more accurate test. And you could also see the current consumption of the motors.
      It was still an interesting test. 👍🏻

    • @RcModwerks23
      @RcModwerks23  3 года назад +1

      @Freeman Wu: ..I think the Tenshock X-1401 is the motor you used in your LC Racing 1/14 Buggy that hit 140 km/h 😉

    • @freemanwu3018
      @freemanwu3018 3 года назад

      Yes man,it's a powerful little motor👍😉

  • @fabiofboful
    @fabiofboful 3 года назад

    Do you know if I can use a Sony 18650 35c with those motors or there would be a bottleneck?

    • @RcModwerks23
      @RcModwerks23  3 года назад

      Sorry I cannot provide an answer because I never tried it. Thanks for watching 👍

  • @VesuviusRC
    @VesuviusRC 2 года назад

    Very well put! How about an under load test too? Subbed.

    • @RcModwerks23
      @RcModwerks23  2 года назад +1

      Thanks ! Ive used these motors in my rc cars and tested them on the road, lol

    • @VesuviusRC
      @VesuviusRC 2 года назад

      @@RcModwerks23 eheh I mean the RPM measure thing of course, btw I know I'm a little degen but my upgrade idea starts at 36xx. :))

  • @fxxxaxxx6359
    @fxxxaxxx6359 3 года назад

    I would like to replace a 390 brush motor with a brushless motor of the same size. What do you recommend to buy? You can send me a link .... it is for my 500 fiat electric car

    • @RcModwerks23
      @RcModwerks23  3 года назад +1

      The 390 brushed motor is equivalent to 2845 in size ( about 7 mm longer than these motors ). Check this link, but you have to select the correct KV for your application : bit.ly/34BQASV

    • @fxxxaxxx6359
      @fxxxaxxx6359 3 года назад

      @@RcModwerks23 you made me too happy with your information

  • @gamercat7004
    @gamercat7004 Год назад

    I put a 5300kv brushless motor in my latrax prerunner and I'm thinking its too much because the cogging is bad on it.

    • @RcModwerks23
      @RcModwerks23  Год назад

      Try a lower kv motor or a better ESC

    • @gamercat7004
      @gamercat7004 Год назад

      @@RcModwerks23 I bought a new ESC but the motor is probably old I have the VXL 3M in it.

    • @gamercat7004
      @gamercat7004 Год назад

      @@RcModwerks23 I installed the surpass 2030 4600kv motor but the truck has a hard drag I feel like the drive train parts aren't good.

    • @stevenpowers9761
      @stevenpowers9761 5 месяцев назад

      Change your gearing

  • @Mano_421
    @Mano_421 3 года назад

    I have a 7000kv coming in for my mini t 2.0 I can’t wait I’ll be running a 3S

    • @RcModwerks23
      @RcModwerks23  3 года назад

      That will be very fast ! 🚀 Thanks for watching 👍

    • @ollieevesplus
      @ollieevesplus 3 года назад

      What size lipo did ypu get I want a 3s lipo not sure on what c rating to get

    • @Mano_421
      @Mano_421 3 года назад

      @@ollieevesplus the tattu 850mah 75C

    • @ollieevesplus
      @ollieevesplus 3 года назад

      @@Mano_421 ok nice what size was you esc?

  • @waynepryce34
    @waynepryce34 3 года назад

    So the esc and motors can be from different companies?

    • @RcModwerks23
      @RcModwerks23  3 года назад

      yes, I use motor and ESCs from different brands

  • @100mphrush4
    @100mphrush4 3 года назад

    What kind of ESC were you using?? BTW nice video

    • @RcModwerks23
      @RcModwerks23  3 года назад

      ESC was Hobbywing Quicrun 10BL30. thanks for watching

  • @ollieevesplus
    @ollieevesplus 3 года назад

    Hi I have a Mavruck Ion xb 1/18 I’d like to updgrade to brushless but what’s the best motor to go for I want it to be very fast but not so it breaks it I’ll be upgrading the transmission to handle the speed but what’s the fastest motor you can get for a 1/18 Maverick ion?

    • @RcModwerks23
      @RcModwerks23  3 года назад

      Sorry I cannot answer you directly because I dont own that rc car so I dont know the final drive ratio. You need to consider many things like the gearing ratio, size of wheels and how many cells of lipo when selecting the motor kv to use for your setup.

    • @ollieevesplus
      @ollieevesplus 3 года назад

      I’ve brought the surpass 6200kv motor the same as in the video will the 35amp esc work with this?

    • @ollieevesplus
      @ollieevesplus 3 года назад

      On eBay I’ve found that the max curretn is 50amps and another eBay seller is saying 75amps so I’m not sure what current it actually uses as you’ve got it in the video so you know how many amps the surpass 6200kv 2838 motor is?

    • @RcModwerks23
      @RcModwerks23  3 года назад

      @@ollieevesplus the test I did was Without load so the small ESC was fine, but better get an ESC with higher amp rate at least 60 amp

    • @ollieevesplus
      @ollieevesplus 3 года назад

      @@RcModwerks23 okay cool would the 35amp still work for now?

  • @fran.6496
    @fran.6496 3 года назад

    I got myself leopard 2860 motor for my lcracing... have you ever tested leopard motors and Are they good or have i threw 80$ on shit?

    • @RcModwerks23
      @RcModwerks23  3 года назад

      I have a small Leopard 2030 motor on my Wltoys A242, but I don´t have their bigger motors ... it must be good, only a bit pricey .

    • @fran.6496
      @fran.6496 3 года назад

      @@RcModwerks23 tnx :)

    • @RcModwerks23
      @RcModwerks23  3 года назад

      @@fran.6496 no problem 👍

  • @francoemiliodossantos1029
    @francoemiliodossantos1029 3 года назад

    hi man..the 6850kv works in a LC Racing amb 1 stock?

    • @RcModwerks23
      @RcModwerks23  3 года назад +1

      Yes, it works but you need at least a 60amp ESC . You will see this motor soon on one of my rc cars .Thanks for watching 👍

    • @villedocvalle
      @villedocvalle 3 года назад

      I just received my EZrun Max10 esc and tenshock 6850kv motor for my LC Racing truggy. I’ll let you know how it goes. I know that the esc will need a wedge to sit a bit sideways to fit right on the chassis.

    • @RcModwerks23
      @RcModwerks23  3 года назад

      @@villedocvalle Nice ! Yes, please inform us if that motor works well for you 👍

  • @ilyushin78
    @ilyushin78 2 года назад

    nice

  • @anuradhaskitchen3648
    @anuradhaskitchen3648 Год назад

    Which motor for 1:10 rc car

    • @RcModwerks23
      @RcModwerks23  Год назад

      These are very small motors for 1/10 , better use 3650 size motors

  • @JoyGadang
    @JoyGadang 2 года назад

    Thanks for testing 9000kv motor.. at part 1.. me sub

    • @RcModwerks23
      @RcModwerks23  2 года назад

      I have used that motor in my Wltoys 104001 ...check this video : ruclips.net/video/I1D5e18sq90/видео.html

  • @freemanwu3018
    @freemanwu3018 3 года назад +1

    But Mark,you still forget to reveal the accurate voltage of the battery before your test!😅

    • @RcModwerks23
      @RcModwerks23  3 года назад +1

      Yes, I missed to mention it ... the battery was at approx. 70% charge (7.90v) 😆 , but I generally refer to 2S lipo batteries as 7.4v since it is what manufacturers write on the label of their 2S batteries (this way we will not confuse the newbies) despite the fact that 2S lipos can be charged up to 8.40v when full.

    • @pbednar
      @pbednar 3 года назад

      yeah there should be actual voltmeter plugged to the balanser connector (can be lipo buzzer as well)

    • @RcModwerks23
      @RcModwerks23  3 года назад +1

      @@pbednar yes, the lipo buzzer will do the job, thanks for watching

  • @jakobfok1664
    @jakobfok1664 3 года назад

    Which is better for a 1/12 scale rc car.
    Higher KV or Lower KV?

    • @RcModwerks23
      @RcModwerks23  3 года назад +1

      It depends on what result you want to achieve ... if you want to run a cooler motor, and more run time for the lipo battery but does not need a very high top speed, then you can go for the lower KV motors.

    • @jakobfok1664
      @jakobfok1664 3 года назад +1

      @@RcModwerks23 ok thanks!

    • @jakobfok1664
      @jakobfok1664 3 года назад

      @@RcModwerks23 last thing, what type of servo should I get? There is alot of different weightages and I really can't decide 😆

    • @RcModwerks23
      @RcModwerks23  3 года назад

      @@jakobfok1664 which model of rc car do you have?

    • @jakobfok1664
      @jakobfok1664 3 года назад

      @@RcModwerks23 WL toys 12423 short course truck

  • @sakerhaljek9689
    @sakerhaljek9689 3 года назад

    Can 2838 4500kv run 1/12 ???

    • @RcModwerks23
      @RcModwerks23  3 года назад

      Can you mention which model of 1/12 rc car you have ? I can´t recommend it on large 1/12 monster trucks, but it will be fine in lighter 1/12 buggies using small pinion gears

    • @sakerhaljek9689
      @sakerhaljek9689 3 года назад

      @@RcModwerks23 the 1/12 scale l979

    • @RcModwerks23
      @RcModwerks23  3 года назад

      @@sakerhaljek9689 I dont have that model of rc car, so I dont know what Spur or Pinion gears is has ... but if the gearing is not tall, the 2838 size motor should be ok

    • @sakerhaljek9689
      @sakerhaljek9689 3 года назад

      @@RcModwerks23 the rc 1/12 scale l202 pro

    • @RcModwerks23
      @RcModwerks23  3 года назад

      @@sakerhaljek9689 I dont have 1/12 rc car, only the Wltoys 1/18 & 1/14 scale

  • @Todd_G_FPV
    @Todd_G_FPV 3 года назад

    I have that 4800kv motor on my losi mini b on a 3s esc and it rips! Lol

    • @RcModwerks23
      @RcModwerks23  3 года назад

      Nice ! thanks for watching! 👍

  • @fran.6496
    @fran.6496 3 года назад

    Test 3650 motors please

    • @RcModwerks23
      @RcModwerks23  3 года назад

      Please check my other video: bit.ly/3klI1kR

    • @fran.6496
      @fran.6496 3 года назад

      @@RcModwerks23 i saw that 5 months ago, but If you have any new 3650 brushless motors you should test em

    • @RcModwerks23
      @RcModwerks23  3 года назад +1

      @@fran.6496 I have other 3650 motors but some of them were already fixed on my other rc cars ... maybe in the future , i will make that video. Thanks for your support to this channel 👍

    • @fran.6496
      @fran.6496 3 года назад

      @@RcModwerks23 you got new sub :)

    • @RcModwerks23
      @RcModwerks23  3 года назад

      @@fran.6496 Thanks man!