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10-13-2011, 10:25 PM
| #1 |
| Rock Crawler Join Date: Aug 2011 Location: tri cities
Posts: 582
|  outrunner?
Not really sure how they work or if they are any good. I was talkin to this guy on this other forum and he swears by outrunners. Idk why and like I said I have no clue about them. Are they a good style of motor? Is there any benifit in them?
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10-13-2011, 11:14 PM
| #2 |
| Rock Stacker Join Date: Sep 2011 Location: Oceanside
Posts: 66
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There every bit as good as InRunners. In general OutRunners are of a lower KV (RPM per volt) so they spin slower but usually create more torque. InRunners are usually much higher KV and have less torque. For crawlers OutRunners would be ideal. They work similar to an InRunner except the outer case of the motor spins while the center and backplate stay stationary. |
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10-13-2011, 11:16 PM
| #3 |
| Rock Crawler Join Date: Aug 2011 Location: tri cities
Posts: 582
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Yea that's what he was saying in a more round about way lol. I just haven't seen many people run em..
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10-13-2011, 11:33 PM
| #4 |
| Quarry Creeper Join Date: Feb 2011 Location: Vancouver, WA
Posts: 423
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I think the main reason you don't see too many outrunners being used in crawlers is that most outrunners are brushless and most crawlers use brushed motors. Holmes Hobbies does have a few though: Holmes Hobbies LLC / Holmes Bikes :: Motors :: Brushless Outrunners |
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10-14-2011, 12:03 AM
| #5 | |
| Rock Crawler Join Date: Aug 2011 Location: tri cities
Posts: 582
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10-14-2011, 12:20 AM
| #6 |
| Quarry Creeper Join Date: Feb 2011 Location: Vancouver, WA
Posts: 423
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Off the top of my head I would think the Mamba Max Pro would be a good choice. On the cheaper side of things, I run a Hobbywing EZ 80A esc in my slash that supports sensored brushless motor: HobbyWing eZRun-80A-SD ESC for 1/8th Scale RC Cars Maybe someone with more experience can chime in. |
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10-14-2011, 01:44 AM
| #7 |
| Rock Crawler Join Date: May 2009 Location: Queensland, Australia
Posts: 610
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Outrunners are generally sensorless so any sensorless brushless ESC will run it. You choices are the EZrun/Turnigy/Yeah racing brushless ESCs, Castle Creations Sidewinder or Mamba Max Pro and there are a few others out there as well. The biggest downside to a sensorless brushless is you may get a stutter/cog at very low throttle position due to the esc not knowing the exact 'phase' to fire at the eact time. Once you get it spun up over a certain point they are fine. |
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10-14-2011, 11:11 PM
| #8 |
| Pebble Pounder  Join Date: Jun 2007 Location: Sacramento
Posts: 151
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Outrunners are great for rc planes, the low end torque is great for 3d flight to be able to hover on demand. They are also great for temp control, less restrictive on holding heat because the casing. I wouldn't run in a crawler there is no protection for the motor. It's so open that anything could get into it and really destroy it.. It's basically like a skeletonized motor. |
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10-14-2011, 11:56 PM
| #9 |
| Rock Crawler Join Date: Jan 2007 Location: San Clemente, CA.
Posts: 531
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Ive got a few out runners and feel they are the shiznit. The old revolvers from holmes were the bomb I got one on a 2.2 run by a quark 33 that has been my longest lasting set up. It started out in a tlt 2.2 comper then 2.2 scaler then to an Axial Ax-10 when they first came out then to a X-Trail then to a Scx-10 that it is in now, still chugging away like new. Also Ive run 3s with this motor ESC since My first lipos 4yrs ago. Overall no other setup has been as durable. I just put an 1600KV outrunner in a Losi mini rock crawler and am very happy with it, the thing looks about the size of a dice. Outrunners have much less cogging than in runners, a sensored out runner I would imagine would have all the benefits of brushed motor with insane torque. So overall I am an Outrunner believer.
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