Waterproof Sensorless ESC able to handle 4S for Outrunner

[Stray]

Morning Lads.

recently I have been playing with some Outrunners, and they are pretty cool. I would really like to get a new ESC and so im after some ideas.

I am after
- An ESC that is waterproof(negotiable)
- An ESC that is 4s capable
- Must be able to handle a 12 pole motor
- MUST BE SMOOOOOOTH for sensorless outrunner.

I realise that the Mamba X is an option, I already have one of these, so for other options

COME AT ME!

thanks team.

[TheLetterJ]

I think you've already found the best solution with the MambaX. The other 4s(+) capable esc's I've run (Hobbywing WP SC8, Hobbywing SCT pro, Hobbywing XR8, Hobbywing Max10, and an old Novak) non-sensored have had piss poor start up by comparison. I'm sure others will chime in with a broader range of experiences.

[mikemcE]

SW4
That’s what JRH used on his test


Hang up and Drive

[Stray]

SW4 is great but maxes out at 3s

[durok]

Mine's running a Mamba X, personally I wouldn't use another... got to love the Aux Wire feature - that's what sells it as far as I'm concerned.

[Stray]

I've got a spektrum dx5r transmitter, and the mamba x, but never worked out how to use the auxiliary wire

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[Exiwolfman]

Originally Posted by Stray

I've got a spektrum dx5r transmitter, and the mamba x, but never worked out how to use the auxiliary wire

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With the auxiliary cable I got two drag brakes on my, one I can adjust with dual rate and other is on/off 100% all on one channel...this is with single speed.
On my two speed I get 10% high gear then low 50% and with a click of my channel I get 100%, basically race/crawler mode.
Works amazing and would have to say Mamba X is my favorite esc do to auxiliary cable.

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[Hydrocarbon92]

Originally Posted by TheLetterJ

The other 4s(+) capable esc's I've run (Hobbywing WP SC8, Hobbywing SCT pro, Hobbywing XR8, Hobbywing Max10, and an old Novak) non-sensored have had piss poor start up by comparison.

I haven't tried those, but I do have a HW 8BL150 that has a pretty outstanding low speed & start-up. It has similar start-up and low/high speed as the HW1080 & 27T (Trinity 5deg). I plan on doing some load tests with a GPS. I'm using 40% expo on a GT3C, cheap-o 1450kv 3642 outrunner, and 3S. The 27T has 54/9T gears and the 1450kv has 54/13T gears. No noticeable cogging. I can't imagine 4S being a drastic change.

Since mine is priced in-between all those you tested, either it's programming is very different or your settings need refinement (radio/esc). I only did my tests with default ESC settings, which are probably sub-par. 11.25deg timing and 5/9 punch setting. I know few ppl try expo settings, which can have a huge impact and the MambaX could be programmed to emulate expo.

Compared to the cheap stuff I first tried in my SCT racer (SC10.2), this esc is night & day. They would cog like crazy and had no low-speed to speak of. It's similar to the sensored ESC I have in it now.

[TheLetterJ]

To clarify, I have NOT tried any of those esc's with an outrunner, only your typical 4 pole 36mm inrunner. I know it's hardly fair to compare sensored/sensorless or outrunner/inrunner, but even my old Castle SCT (sensorless) had smoother startup than the 4s capable esc's I listed... but again, it can only run 3s. I'm following along here because I have similar goals as the OP, though I'll be trying my Mamba Micro X with 3s (that's all it can handle) and an outrunner before buying a new esc. I haven't ruled out the no-name 1450kv 3542's, but I think the 1800kv Revolver on 3s might get me close enough if it can pull a little taller gearing than my current 1080/27t 550.

[Hydrocarbon92]

Fair enough, I'd presume it would take less refinement to make a 14-pole outrunner vs a 4-pole inrunner. I do have an older Sidewinder v3 and a Castle 1410 inrunner I can compare it to. I initially bought this ESC to convert an Exo Terra into a 4S snow basher, but it's smoother than I thought it would be.

My goal is to make a vid showing the power/speed/smoothness difference between brushed & outrunner with GPS data & a weighted sled, but my Wraith is still under some construction.

[Stray]

I'm running the 1400kv out runner on my castle sct, sidewinder v3. It's pretty good. Just very slow and shreeks like a banshee...

It is a unique set up and I quite like it.

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