Who runs an Outrunner in their boats?

[RandyatBBY]

I had to go back a bit to find it. Hear ya go.
http://forums.offshoreelectrics.com/...ead.php?t=3849

[Meniscus]

I had to go back a bit to find it. Hear ya go.
http://forums.offshoreelectrics.com/...ead.php?t=3849

LMAO I was looking on your forum! I do remember that thread....at length! Thanks for posting and your efforts to dig it up.

[pmisuinas]

Hi, all, have decided to use a Scorpion 4025 (1670Kv if the South River RC Boats drop down menu is correct) outrunner on 4S-6S in my hydro--what props have proven well matched to the motor? Or at least what is a recommended starting point? Thanks...Pete M

[DISAR]

I have this motor, although the site says 1670, I received 1470kv and 8mm shaft. Have tested it with 5 and 6s in a sprintcat 34". With 6s and 645 prop draws about 120 amps, temperature about 50 C-122 F, speed about 40mph, not bad at all for 120$!! There is a big difference between 5 and 6s, the latter is far better imo.

I don't know what size is your hydro but you can start with 6s and 442-445

[pmisuinas]

Well, unfortunately South River just sent me an email saying the last one was sold and it's a custom wind they have been waiting on for 6 months, so I am now getting an 1100Kv motor. I am putting it in a 37" Aeromarine Sport 40 hull, so the question is the same: for the lower Kv motor, what would be a good starting prop on 6S? Maybe the same one (645)? Thanks...

[tharmer]

A Scorp 4035-800 on 8s runs well with a Graupner K57.
-t

[Fluid]

I run the 4025/1100 in my 6S1P SprintCat, and there is no point in using a prop smaller than an x455. In a well-set up hydro a 1655 would probably be in order. This motor takes a lot of prop even in a cat - the x455 drew under 75 amps average running a one mile course. Expect around 21,000 rpm under load.


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[ray schrauwen]

I run the 4025/1100 in my 6S1P SprintCat, and there is no point in using a prop smaller than an x455. In a well-set up hydro a 1655 would probably be in order. This motor takes a lot of prop even in a cat - the x455 drew under 75 amps average running a one mile course. Expect around 21,000 rpm under load.


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What kind of speeds do you see from your cat?

I should never have sold mine.

[Fluid]

With the Scorpion 4025/6 on 1P it's almost 50 mph. On 2P with a Neu 1527/1Y its over 60. I love the boat with both setups.



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[Mel279]

hi

I have a jollymotor 620ep which run using outrunner motor, 2185kv, does anyone know if I can use 4 cell lipo with that motor?

[ray schrauwen]

@What outrunner?? Size, make,,,

[Mel279]

@What outrunner?? Size, make,,,

Is a 28mm size outrunner with 3.17mm shaft, I have just run using another outrunner with the same size that my friend change the winding to suit for 4s, and I've change the esc using ezrun 60A esc(car esc), I remove the red wire and install an external ubec, FYI the esc is capable of running 3s max, I've tried using 4s, it works fine. One thing I like about this esc was that, when the motor overheat, it stop the boat, and in a min I can run it again and back to onshore. I also can set the punch level. Now Im going to remove the heatsink and replace with a watercool plate.