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  1. #1
    RC poster
    Join Date
    Aug 2013
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    15

    Thermal shut down

    I just got a new stock motor and esc courtesy of Traxxas. I am running stock 13/54 on 3s 6400mah lipos. I have a heavy finger and don't want to fry my gear, but I had a thermal shut down on my 1st run post rebuild. Since I had a heat issue previously I'm sure that nothing is binding, but I checked anyway. I know it's just how I drive. I would like to gear down to keep things cooler while bombing around. Any opinions on what pinions? 😂😂😂😂 (spurs also👌👌👌&#128077

  2. #2
    RC Competitor
    Join Date
    Dec 2020
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    87
    Mine was 200+ on the Traxxas link after burning through a 4500 mAh. So I could see it getting pretty dang hot after a 6400..

  3. #3
    RC Champion RCWilly's Avatar
    Join Date
    Feb 2019
    Location
    California Bay Area
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    1,174
    You can try adding fans and a heatsink to see if that helps. As for gearing, I am running 11/54 on my Slash 4x4 (4300kv motor; VXL diffs). The (specific) pinion that I am using is for the Hoss (5mm bore), so I don't think it will fit the VXL-3s motor (3mm bore). The spur that I am using is just the stock one.
    Everyday's a gift, thus now is called the present.

  4. #4
    RC poster
    Join Date
    Mar 2020
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    7
    Quote Originally Posted by RCWilly View Post
    You can try adding fans and a heatsink to see if that helps. As for gearing, I am running 11/54 on my Slash 4x4 (4300kv motor; VXL diffs). The (specific) pinion that I am using is for the Hoss (5mm bore), so I don't think it will fit the VXL-3s motor (3mm bore). The spur that I am using is just the stock one.
    I ran my stock slash 4x4 VXL motor for a few years @ 19/54 (stock). No issues I added fans on both motor and esc. Now run a castle motor with a mamba exc again same gearing no issues. I run pretty hard, broken lots of arms, axels ect . both 2s and 3s. Ran 15/54 for one track I used to run on. Again no issues. I agree to add fans on both. Cheap fix. Good luck

  5. #5
    RC Enthusiast
    Join Date
    Jan 2018
    Posts
    32
    Try 12/54. Worked good for me on 5000mah 3s pack. I'm now running 2.8's and went to 11/54 with no issues

  6. #6
    RC Qualifier
    Join Date
    Jun 2020
    Location
    Texas
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    362
    Just get a good fan setup. Here is mine and it has eliminated all of my thermal shutdowns or even getting close:


  7. #7
    RC Competitor
    Join Date
    Jan 2019
    Location
    Somewhere up North
    Posts
    59
    haly.gon, Are those the Yeah booster fans and how do you like them? Good air flow, good fit?

  8. #8
    RC Qualifier
    Join Date
    Jun 2020
    Location
    Texas
    Posts
    362
    Quote Originally Posted by JimmyHog View Post
    haly.gon, Are those the Yeah booster fans and how do you like them? Good air flow, good fit?
    They are YR booster fans. They work great. Haven’t had a heat issue since air installed them as they (and the aluminum brackets holding them) work as a heat sink along with the high rpm fans in them. But that to say.. a good fan on the ESC is just as important as one(s) on the motor. I went with the HR fan because it has an aluminum base that extends the heat sink on the ESC.

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