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Leopard Motors ?

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Old 04-12-2017, 08:34 PM
  #26
kennethfunk
 
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Also,How would 6s do on the Turnigy 4074 1400kv..?
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Old 04-12-2017, 08:36 PM
  #27
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The Turnigy xk has a 4074,but only 1400kv,how would that do on 6s?
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Old 04-12-2017, 08:38 PM
  #28
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theres also a 1450 kv in the turnigy xk range.
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Old 04-12-2017, 09:33 PM
  #29
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I will check that out crapshooters,I want to reach high 50's to 60 on smooth water using 6s and not have the motor getting too hot: )
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Old 04-12-2017, 10:38 PM
  #30
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i would say with the lower kv motor such as the 1450 you would be able to also swing a bigger prop without the engine reving or straining too hard.
like r/c aircraft , they use lower kv motors to swing large props for various models . the idea is cool esc / cool motor and good speed. so don,t forget to work on different props aswell as you might end up with a good electric set up but the main propulsion is lacking due to the wrong prop used. i am going through the same process with my electric rigger .
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Old 04-13-2017, 03:48 AM
  #31
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Ok thanks,I will test props with new motor,hope to order one this weekend!
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Old 04-13-2017, 12:39 PM
  #32
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also do you have an esc program card ? if so find the correct timing for the motor .
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Old 04-13-2017, 12:43 PM
  #33
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yes I have program card,but still trying to figure out what timing to choose...?
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Old 04-13-2017, 02:42 PM
  #34
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timing does depend on how many poles the motor has plus maybe Y or D wind makes a difference, start with a low or standard timing going by what i have read. a guy on you-tube was running a 31 inch mono with a turnigy xk 4080 - 1450 kv / 180 esc and 6 s lipo, looked like it was in the good 60 mph range.
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Old 04-13-2017, 03:35 PM
  #35
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Ok thanks,I will be checking that out!!!.sounds good: )
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Old 04-13-2017, 05:59 PM
  #36
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The Turnigy 4074 1400 kv should work good on 6s with a m545 or m645, maybe low 50's. But if you decided to run 4s with it, I doubt it would be faster than the aquacraft if both motors are run on 4s. I do think high 50's to 60 would be more realistic on 6s with the leopard 4074 1650kv. Plus the d wind motors have a edge over the y wind motors, they will produce more torque and hold the rpm higher under load.
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Old 04-13-2017, 06:09 PM
  #37
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Patrick, what would be a good motor timing for my turnigy xk 3674 - 2200 kv 4 pole ?
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Old 04-13-2017, 07:02 PM
  #38
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Thanks Patrick 125,I didn't see the Leopard 4074 1650kv,will look for that one,and get the m545 or 645 props,been saving ones on eBay watch list!
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Old 04-14-2017, 05:09 AM
  #39
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still looking for the leopard 4074 1650kv on eBay,they only have the leopard 3674 in 1650kv,think I saw the 4074 1650kv online,will check google search: )
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Old 04-14-2017, 06:20 AM
  #40
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https://www.offshoreelectrics.com/pr...?prod=leo-4074 This is the link for the 4074 motor.
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Old 04-14-2017, 06:33 AM
  #41
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Thanks Patrick 125,saved link,great info on off: )
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Old 04-14-2017, 06:34 AM
  #42
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Ose

Last edited by kennethfunk; 04-14-2017 at 04:13 PM.
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Old 04-14-2017, 06:47 AM
  #43
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Quote:
Originally Posted by crapshooter View Post
Patrick, what would be a good motor timing for my turnigy xk 3674 - 2200 kv 4 pole ?
I don't change the timing on my esc so I don't have first hand experience know what timing is best. I have read that D wind brushless motors like low timing 0 to 5 degrees. In my experience poor connection is what attributes in a high part to motor and esc heat. I have had experiences where the solder melted of the bullet connectors and I had to keep the runtime really short to manage heat. This happen with my aquacraft 1800kv the revolt stock motor, my leopard 4092 1730 and my 4092 2080 used to had the connectors real hot. But after soldering the speed control wires to the motor, at the end of the run the speed control and motor and the wires were the same temperature at the end of the run as when I hooked up the battery. The motor had way more power because of the better connection.
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Old 04-14-2017, 07:07 AM
  #44
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With improved connection I have ran my aquacraft 1800 on 6s with the stock grim racer prop and the motor and wire temperature felt the same as when I began the run.
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Old 04-14-2017, 07:58 AM
  #45
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Ok thanks!..I will check the solder connectors and probably solder esc to motor,I put 5.5 bullet connectors on esc to battery,should I put 5.5 bullets on esc to motor or just solder them together?
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Old 04-14-2017, 08:53 AM
  #46
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my extra water pickup is working great,now need to get some water line!
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Old 04-14-2017, 12:01 PM
  #47
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I'm going to plug the hobbywing program card into esc and push reset on timing to see if it goes to default setting and see what number that is
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Old 04-14-2017, 01:14 PM
  #48
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with my new motor and esc i changed all wire connectors from the stock ones to good quality gold plated 6mm.made sure all solder joints were done well.
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Old 04-14-2017, 03:35 PM
  #49
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That's was good to do crapshooter,..I'm going to do the same since I'm getting the Leopard 4074 1650kv from Ose,and it comes with 6mm bullet connectors on motor and 3 extra to put on esc: )
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Old 04-15-2017, 04:52 PM
  #50
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I ran my Revolt and tested it with the timing on esc with program card to number 5(15.00) which is the default setting,I had it on number 4(11.25) but it got hotter,haven't check top speed difference,11.25 was getting 51 1/2 mph,I think your right on going lower,have searched a lot and see I should go lower,so will be trying out the low settings tomorrow,next I will make the connection better from esc to motor,I have 5.5 bullets I could put on,but when I get the Leopard 4074 1650kv it will have 6.0mm bullets on it and 3 extra for esc,hopefully I can order it next Saturday: )...what's the best turn fin and ride tabs you and everyone like best ? : ))
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