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  1. #1
    RC Enthusiast
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    Futaba S9157 Digital High-Torque Servo - thoughts on additional parts needed

    I just ordered the Futaba S9157 Digital High-Torque Servo. I have been looking through the threads on the conversion to a single servo but am still a little unsure of which parts are needed to make this work well.

    What servo horns work well for this servo?

    Is the Golden Horizons Aluminum Servo Arm Silver Revo 2.5/3.3 GHH02510 still the best choice for a single servo arm?

    Is the aluminum servo saver necessary with this much torque?

    thanks

  2. #2
    RC Enthusiast
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    This will mostly used for crawling and trail use.

  3. #3
    RC Turnbuckle Jr. JimmyNeutron's Avatar
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    My BMS 35A has 402in-oz and I still use the stock saver and arm without any issues.
    I think anything over 350in-oz is overpowering pretty much any servo saver anyway... so if you start ripping arms off the saver that is when I would upgrade.
    Whatever it is I just typed... could be wrong.

  4. #4
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    Thanks for the info - I think i will get the Hudy horn and wait on the others.

  5. #5
    RC Turnbuckle Jr. JimmyNeutron's Avatar
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    I think I should also state that I had to use some blue lock tight to keep my horn bolt to stay tight.
    Whatever it is I just typed... could be wrong.

  6. #6
    RC Competitor
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    Oct 2012
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    Perth, Western Australia
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    If you are running a separate BEC you could use these too. They are the HV version of the 9157.

    http://www.servodatabase.com/servo/futaba/bls157hv

    They are an HV servo but can be run at 6V giving 430 oz-in and 513 oz-in on 7.4V. I use three of them on the cyclics for my 800 size heli.

    Only downside is they're about $180 each compared to $150ish for the 9157.
    Last edited by Jays200; 11-20-2012 at 05:03 PM.
    Summit 11/68T 4S 2000kV
    E-Revo 14/56T 6S 2200kV

  7. #7
    RC Turnbuckle Jr. JimmyNeutron's Avatar
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    I guess I should be thrilled with the $62 shipped mine cost.
    Whatever it is I just typed... could be wrong.

  8. #8
    RC Enthusiast
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    I have an extra CCBEC but I am going to see how the 9157 does with the evx2 LVP without the BEC. I am used to a Losi comp crawler with a 300+ servo on it (with CCBEC) so it will be nice to have better steering in the summit while crawling over rocks.

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