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Thread: will this combo work out mathmaticaly

  1. #1

    Question will this combo work out mathmaticaly

    36 inch mono FG
    tp power 4060 3y 1750kv(3200watts continuos, 6200 maxwatts)
    seaking 180 v3
    2 3s 6000mah 50c 100 burst

    thanks guys, I am a Newbee to FE
    Last edited by Crash; 08-04-2018 at 03:10 PM.

  2. #2

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    You KV seems very low for a 3s setup, I almost use that kv for my 6s.
    For mono I use the following KV:

    2s = 5000kv
    3s = 3400kv
    4s = 2600kv
    6s = 1600kv




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  3. #3

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    Yes you're right I meant 6's

  4. #4

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    Your continuous amp draw is rated at 144 amps which for me is a little to close for comfort for my liking with a 180 amp esc, I would run a higher amp esc just to be sure.


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  5. #5

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    High KV for 6S in a Mono ( Small Prop)
    I use 1850kv on 4S2P in my Mono


    1750kv - I would say 5S would be better


    Unless you are only going to make a couple of speed runs each time out.

    Larry
    Past NAMBA- P Mono -1 Mile Race Record holder
    Past NAMBA- P Sport -1 Mile Race Record holder
    Bump & Grind Racing Props -We Like Em Smooth & Wet

  6. #6

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    I already own this set up and the test runs going not so good. I can run about half throttle ok but when I try to go full throttle the ESC goes to half power until I bring boat in and reset the esc. It does this stone cold and hot around 160F
    should I suspect ESC is too small or is it possible My lipos are not up to the motor has to draw out of them?

  7. #7

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    Quote Originally Posted by StevenBryant View Post
    Your continuous amp draw is rated at 144 amps which for me is a little to close for comfort for my liking with a 180 amp esc, I would run a higher amp esc just to be sure.


    Sent from my iPhone using Tapatalk
    thank you

  8. #8

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    Quote Originally Posted by TRUCKPULL View Post
    High KV for 6S in a Mono ( Small Prop)
    I use 1850kv on 4S2P in my Mono


    1750kv - I would say 5S would be better


    Unless you are only going to make a couple of speed runs each time out.

    Larry
    thank you

  9. #9

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    No probs mate, my Q mono runs a 1717 castle motor 1580kv with a watercooled castle XL2 esc.


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  10. #10

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    200 amp esc be enough?

  11. #11

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    Quote Originally Posted by Crash View Post
    200 amp esc be enough?
    The 180 amp will work but does not leave much head room if you over prop the boat. I personally like to have plenty of room so I’m not pushing the esc too hard.


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  12. #12

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    the esc is shutting down at full throttle....

  13. #13
    Join Date
    Aug 2010
    Location
    uk
    Posts
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    What do you have the lvc set @, you could try lowering the lvc or turning the lvc off & see if that makes a difference. With the lvc turned off you must time your run time so as not to over discharge the batteries, it also depends on how good your batteries are with not to much voltage drop under load.

  14. #14
    Join Date
    Aug 2010
    Location
    uk
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    Their have also been known problems with some of the 180a esc in the past shutting down like this, it was talked about on this forum a while back even with the lvc turned off they were still shutting down.

  15. #15

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    Quote Originally Posted by martin View Post
    What do you have the lvc set @, you could try lowering the lvc or turning the lvc off & see if that makes a difference. With the lvc turned off you must time your run time so as not to over discharge the batteries, it also depends on how good your batteries are with not to much voltage drop under load.
    I am concerned the lipos are not up to par which is tricking the ESC to shut down , like u said
    they are RGB brand

  16. #16

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    Martin is correct the 180 sealing has known problem, I would attempt to disable the lac and set the voltage manually and see if this works. If you have no success I would spend a bit of money and get a Swordfish or MGM esc at a higher amp rate.


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  17. #17

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    Quote Originally Posted by Crash View Post
    I am concerned the lipos are not up to par which is tricking the ESC to shut down , like u said
    they are RGB brand
    Are your cells getting hot or puffing?


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  18. #18

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    ESC is at 160 F+
    motor is at 130 F+
    batteries are at 115 F + no puffing

  19. #19

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    The goal is to get to 70mph + with this set up …..
    Any prop suggestions?

  20. #20

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    Quote Originally Posted by Crash View Post
    The goal is to get to 70mph + with this set up …..
    Any prop suggestions?
    The best people to speak to are Chris Hoffman (Dasboata) or Brian Baus they will be able to prep you a prop so you can hit 70 plus. Be mindful you will have to upgrade your esc to handle the amps


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  21. #21

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    Quote Originally Posted by StevenBryant View Post
    The best people to speak to are Chris Hoffman (Dasboata) or Brian Baus they will be able to prep you a prop so you can hit 70 plus. Be mindful you will have to upgrade your esc to handle the amps


    Sent from my iPhone using Tapatalk


    UPGRADE! I did with this 180 …………….lmao ….

  22. #22

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    Quote Originally Posted by StevenBryant View Post
    The best people to speak to are Chris Hoffman (Dasboata) or Brian Baus they will be able to prep you a prop so you can hit 70 plus. Be mindful you will have to upgrade your esc to handle the amps


    Sent from my iPhone using Tapatalk
    Thanks , Just Emailed them.

  23. #23

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    You may have a dead cell in one of the batts causing lv. Worth a check if the batts are suspect.
    white geico w/2200kv 3674 leopard 53.5mph 4s2p, geico w/ 1800kv outrunner 52mph on 4s2p, genesis w/2200kv castle 53.8 on 4s2p, impulse 31 w/2200kv castle, stock p1 and ul-1

  24. #24

    Thumbs up

    Quote Originally Posted by stadiumyamaha View Post
    You may have a dead cell in one of the batts causing lv. Worth a check if the batts are suspect.
    The lipos due balance out every charge and discharge the same.

  25. #25
    Join Date
    Jan 2016
    Location
    FL
    Posts
    1,190

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    Quote Originally Posted by Crash View Post
    I am concerned the lipos are not up to par which is tricking the ESC to shut down , like u said
    they are RGB brand
    Your lipos are fine provided they hold a good charge and balance well. How old are your lipos, how many cycles and do you have anyway checking the IR(internal resistance)? You can have a lipo that balance just fine but have very high IR and thus will not give you the full power that it's suppose to give you when new or like new. You're right the temps on your esc are pretty high at 160°F. maybe causing it to shut down. BTW, what prop are you using since you haven't mentioned what prop you're using? !750KV is possible to run on 6S. Make sure you're running continuously and not stop and go as escs doesn't like that. You can fo full throttle every now and then but just make sure it's not stop and go. Also, do you have separate cooling for motor and esc? Make sure water flow is good.. .check it. One easy way is take a big gulp of water and blow from the rudder inlet or unplug the cooling line from the rudder and blow water through the cooling line and see if water is flowing out nicely and not clogged. . .do it for both esc and motor and compare. You didn't tell us what prop you're using. So before you start shutting your lvc down on your esc. . .perhaps your prop is too big to cause the high esc temp. Maybe try a smaller prop and see how that works. If it's not acting up when using a smaller prop it's not the issue that these escs have been known to do. Motor temps and battery temps are fine. If you don't have smaller props then try running 5S or 4S. Also do some fine tuning by making sure your props are balanced and sharpened as well as your turn fins and rudder blade.

  26. #26

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    I got out to test run it again.
    turned the VCO to 3.0 and took it off Auto lipo and set it to 6s it made it a little better.
    but, eventually it did go into limp mode.
    because it was running better I did push it up to 59mph on 2 passes before it shut down. That's full boogie for my prop.
    I am convinced the ESC is not up to the task of this 8HP motor.

    cliff note: I am using 2 different sets of lipos both like new
    Last edited by Crash; 08-05-2018 at 03:32 PM.

  27. #27

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    Quote Originally Posted by Crash View Post
    I got out to test run it again.
    turned the VCO to 3.0 and took it off Auto lipo and set it to 6s it made it a little better.
    but, eventually it did go into limp mode.
    because it was running better I did push it up to 59mph on 2 passes before it shut down. That's full boogie for my prop.
    I am convinced the ESC is not up to the task of this 8HP motor.

    cliff note: I am using 2 different sets of lipos both like new
    What prop are you using?


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  28. #28

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    SS x545

  29. #29

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    Quote Originally Posted by Crash View Post
    SS x545
    What make of prop?
    Has the prop been detongued?


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  30. #30

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    Quote Originally Posted by StevenBryant View Post
    What make of prop?
    Has the prop been detongued?


    Sent from my iPhone using Tapatalk
    https://www.ebay.com/itm/X543-CNC-PR...itleDesc=0%7C0

    sorry 43mm

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