Syma X8 upgrades to brushless motors.

Discussion in 'RTF Modification & Repair' started by Chuck, Jul 10, 2016.

  1. Chuck

    Chuck Well-Known Member

    I've been looking at the YouTube videos demonstrating various conversions of Syma X8C, G, and/or W quads to brushless motors. Some appear to be pretty successful, a couple marginal, where the pilot has difficulty maintaining altitude control being the common side effect. But none mention how long they are able to keep them airborne compared to with the original or replacement brushed motors, which had a maximum flight time of about 10 minutes. I'm curious, as that is a modification that I would be tempted to try myself, but not if there is no significant increase in performance to justify the cost of parts and labor to do the conversion. Can they run on the original 7.4 lipo batteries, or do they also have to be upgraded to 11v batteries? Presuming the control range to remain the same with the original controller and flight control board, , is there an improvement in manuerability, control, speed, a payload increase?
     
  2. rwid

    rwid Active Member

    Well. I don't see any replies to your post so I will give you my experience with what I did. I did the brushless upgrade from the kit you can buy from the Syma store. It doesn't work as advertised for me. You are supposed to have 3 speeds that are selected by toggling the cam/video switch. Didn't work for me with the camera installed or not installed. Still have only 2 speeds that are selected by the regular speed select button. And, they are not near as powerful as the brushed motors. I have no problem lifting an action cam with my brushed motors in any speed but with the brushless motors it won't stay hovering and won't, or at best, struggle to gain altitude. Also with no camera on it and just flying it around, it'll only fly for 9 min. Then the lights start flashing fast for about 2 sec and then your X8 falls out of the sky. So, I tried to use an 11.1V battery. It won't even turn on. Must have some sort of voltage regulating diode in it that prevents 11v to work. I have another kit coming from another company that I am going to try. And also, I have some spare Bugs 2 motors that I am going to see if I can use in place of the Syma kit motors to see if that will work.
     
  3. Chuck

    Chuck Well-Known Member

    I'll be watching for your results.
     
  4. rwid

    rwid Active Member

    OK. I received my kit last week and finally installed it this past weekend. The kit, although it looked different in the pic, is the exact same kit that I bought before. I installed it anyway. This works a lot better than the other one. The other one must have something wrong in the board. I can hang my syma HD camera on it or my camera from my Bayangtoys X21 and it flies fine. Very smooth and quiet. It is sensitive to the controller I use. If I use the controller made for altitude hold, which this brushless upgrade has, it flies radically. Near impossible to land smoothly. If I use the controller for the 8XC, it flies beautifully. Much easier to land and very stable. I'll be more testing in the days to come.
     
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  5. mozquito1

    mozquito1 Well-Known Member

    I would have thought the flight controller would have to be switched to a brushless board,which consume more power.
    So the flight time would be lower, using the same lipo. Get yourself a betaflight brushless 20x20 fcb, a few can take upto 4S now. Even an old Piko for less than £20
    Just hot glue it in. Although four holes on standoffs is simple mod.
     
  6. rwid

    rwid Active Member

    I assume the board is modified for brushless since this is a complete kit. You are right about the flight time. Yesterday I used a 3000mah battery and I got over 10 min of flight time. The 2200mah only did about 6 or 7 min. I haven't tried to exhaust the battery yet to see what the flight time is with that battery.
     
  7. mozquito1

    mozquito1 Well-Known Member

    Never heard of a board doing both,
     
  8. rwid

    rwid Active Member

    If you go to the syma store and look at the brushless motor upgrade kit you can see what the board looks like. It looks like they take an x8 board and wire it to another flight controller board. There are no escs. I assume it is all in the other board.
     
  9. Jackson

    Jackson USA member at large

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  10. rwid

    rwid Active Member

    I love that x8 flimsy shell. It can fall 90 meters from the sky and nothing happens.
     
  11. Jeff Neese

    Jeff Neese Well-Known Member

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  12. Dugdog47

    Dugdog47 Well-Known Member

    Well it's good to hear someone finally had some luck upgrading their syma to brushless motors.
     
  13. Jeff Neese

    Jeff Neese Well-Known Member

    I really don't see the point in this. I have an X8C myself, and I like it very much. But why try to make it something it's not? It's basically a toy quad - a giant Syma X5-C1. Like Jackson said, for the same or even less money, you can buy a Bugs 3 and it will fly way better.
     
  14. Dugdog47

    Dugdog47 Well-Known Member

    Just tinkering around and having fun with toys. Myself, I upgraded to the bugs3.
     
  15. Dugdog47

    Dugdog47 Well-Known Member

    This thread should come with a WARNING: most people who try this end up wasting their money.
     
  16. mozquito1

    mozquito1 Well-Known Member

    Yeah I'm going with that for sure.
    Stay well clear of tomtop.
     
  17. mozquito1

    mozquito1 Well-Known Member

    Brushed motors don't need timing.
    Brushless do. As they are phased.
     
  18. rwid

    rwid Active Member

    Timing probably isn't the correct term. They are phased. If they are wired wrong, they just turn the opposite direction. The ground, or in most cases the black wire, stays where it is. Just swap the other two wires and your good to go. Bench test before putting the quad completely together.
     
  19. mozquito1

    mozquito1 Well-Known Member

    Some cases they are all black. You can cross any of them. That's old hat now because of blheli. Middle & left, right & left, left & right over middle will all make the motor turn. I just put them on neat & change direction in blheli.
     
  20. Chuck

    Chuck Well-Known Member

    On a JJRC H25 which uses essentially the same motors and battery, I've experimented with wiring to aftermarket 2500 mah lipos sold on eBay for a Syma X8 in parallel to give me a full 5000 mah. So far, it appears to have longer air time ( didn't time it), although I deleted the onboard camera to mount the second lipo under the fuselage.
     

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