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Thread: Another motor and ESC

  1. #1
    Join Date
    Jun 2013
    Location
    NL
    Posts
    19

    Default Another motor and ESC

    Hi guys,

    I am looking to take out the stock Dynamite 80A ESC and 1800 KV motor from my Impulse 31 V2, and to replace them by a Leopard 3674 1900 KV motor and (probably) a Hobbywing Seaking 120A V2 ESC.

    Question about the motor: the Leopard is a 4-pole motor, the stock Dynamite a 6-pole. Does this matter that much in a boat and do you think I'll notice the decrease in torque (if any)?
    Is it overall a good choice for a motor?

    Question about the ESC: the Hobbywing Seaking 120A V2 only has 2 capacitors. Will that suffice? I run primarily on 4S, planning on using the above Leopard motor, everything else stock (prop, etc.), but with occasional 6S runs as well.
    Or is it mandatory to add like 2 extra capacitors?

    Or... do you think the Seaking 180A will do a far better job in the above setup? You see, I am looking for a slightly upgraded system, but foremost an absolutely cool-running and reliable setup.

    Thanks guys!

  2. #2
    Join Date
    Mar 2013
    Location
    ny
    Posts
    367

    Default

    i have a leopard 3674 1700 kv on 5s in this boat ,only using a 40 mm carbon prop because i'm still breaking in my lipo's
    120A Seaking with external bec
    it is a lot faster then the stock motor with this set-up

    motor ,lipo ,esc and ec-5 connectors : barely warm
    caps :about 45°C

    next thing is to test a 42 carbon k-series graupner prop and a 43 mm cnc,

    would not use a 1900 Kv motor on 6s :is going to kill your hardware fast
    would not use an unbalanced stock prop either!

  3. #3
    Join Date
    Jun 2013
    Location
    NL
    Posts
    19

    Default

    What size in mm is the stock stainless prop?

    Do you run extra caps on your Seaking 120A?

  4. #4
    Join Date
    Mar 2013
    Location
    ny
    Posts
    367

    Default

    no extra caps , have used this controller with the stock 1800kv motor and a turnigy typhoon 500 outrunner on 5s , still in perfect condition

    the stock prop is a 40.6mm but with 1.6 pitch

    graupner k-series carbon props are 1.4 as the cnc prop

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