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Best heat sink fan for stock motor

Discussion in 'Kraton' started by jk420, Jun 15, 2017.

  1. JvG

    JvG Well-Known Member

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    Use a splitter on the esc fan power output and cover it with heatshrink tube, works perfect!

    Link for splitter:
    Y Servo Leads (JR) Servo Y Splitter Cable For RC Models 7cm
    http://s.aliexpress.com/FjEfUBBF
    (from AliExpress Android)

    And looks like this:

    20170622_234914.jpg
     
    Voltron7 likes this.
  2. 83N

    83N Well-Known Member

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    So have I got it wrong, connecting my fan to the 'B' port on my rx?
     
    #42 83N, Jul 11, 2017
    Last edited: Jul 12, 2017
  3. jk420

    jk420 Well-Known Member

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    That's where mind plugged in and it's been working fine.
     
    83N likes this.
  4. 83N

    83N Well-Known Member

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    Thanks buddy. Mine's been working fine but I was worried I may have been overloading the port...

    Incidentally, with a 14t pinion and on 4S I'm still getting really high motor temps - even with the C4 - and a really warm battery, too. Any idea why? I'm not driving at WoT all the time and I'm out of ideas.
     
    #44 83N, Jul 15, 2017
    Last edited: Jul 15, 2017
  5. jk420

    jk420 Well-Known Member

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    If it's already hot out side it don't take much for them temps to jump up. So it may not be anything your doing wrong....or anything you can help lol. You can also eliminate what the problem is by removing the motor and checking for resistance along the drive line and such.?
    Have you check you mesh lately?
     
  6. 83N

    83N Well-Known Member

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    Thanks for the input JK!

    Yeah, checked the mesh and everything seems fine. I've also checked the drive-line and there's no binding or resistance that might be causing undue stress on the motor, either.

    I had been using a 4S (3600mAh 30-40C Turnigy) and a 14t Tekno pinion and in normal driving I'm getting high motor, ESC and battery temps. Even with the Hobbywing C4 heatsink.

    I'd never seen this before, but my battery even puffed a little and stayed hot for AGES so I know it was working hard (it has subsequently returned to normal size).

    Have I over-geared it with the 14t pinion?
     
    #46 83N, Jul 24, 2017
    Last edited: Jul 24, 2017
    jk420 likes this.
  7. jk420

    jk420 Well-Known Member

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    I'm not sure about the gearing lol. That question may need to be left for someone else but the puffing lipo is not good. It kind of sounds like your trying to pull to much power from your batteries. Do you happen to have one with a higher discharge rating you could try? Other than that I'm not sure what's going on lol.
     
  8. JvG

    JvG Well-Known Member

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    Hi @83N, i think the problem is your battery. At least 4000 45C is needed for the power system in the Kraton.
     
    jk420 and 83N like this.
  9. jk420

    jk420 Well-Known Member

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    @JvG is right. Need at least 45c. I would stop using that battery before it catches fire and burns up your rc lol.
     
    JvG likes this.
  10. 83N

    83N Well-Known Member

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    Thanks guys - I feel such a dummy!

    Just hit HobbyKing and bought 2x Basher 4000mAh 65C 6S Hardcases.

    F this 4S nonsense! :)
     
    jk420 likes this.
  11. JvG

    JvG Well-Known Member

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    Add some foam and other soft materials to the battery tray and you are ready for bashing!
    20170725_175622.jpg
     
  12. jk420

    jk420 Well-Known Member

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    That should get you going lol!
     
    83N likes this.
  13. Fishcat

    Fishcat Member

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    I was looking at that heatsink how is it holding up for you.

    How is it holding up for you so far
     
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