9Imod outrunner combo/Heat testing

Just the finale video showing the heat issues on this 9imod 2250kv outrunner
#rc #radiocontrol #rccrawler #remotecontrol #scalerc #scale

[@ChrisSnider-k7u]

Awesome video little RC brother thanks for the info on that system

[@g.b-MTB-trail-jumps3062]

great check mate🤩

[@RcDungeon]

@@g.b-MTB-trail-jumps3062 Thanks man

[@stunod-RC]

They all work harder in slow crawl, sine mode, Foc (whatever you call it).. it would help to sideways mount the esc so the heat sink can work properly in a vertical position (fins oriented up and down). And a better motor may allow the system to run more efficiently (cooler).. just some thoughts 💭

[@RcDungeon]

@@stunod-RC Thanks for the info, I'm stepping up to a better system noway it should see these kinda temps, maybe I'm pushing it to the limits in sine mode though I don't know. I really appreciate the help

[@jackawaki]

Conformal coating temp range is like 394 degrees before it fails so it should be good as far as that goes

[@leoncottrill3254]

Great review on the 9imod system, in my opinion it would be OK for a trail truck. But for the comp crawlers where you're using super slow crawl I wouldn't recommend it 👍

[@RcDungeon]

@@leoncottrill3254 I agree Rc brother. Working on it still, gotta play with the timing settings to see if that helps the heat.

[@DubVredneck]

OUCHIE thats hot but goid ta know it'll cool down still tho thats freaking hot

[@CrawlersCampRc]

The reason its building heat is cause sine mode. Either lower the time your in sine mode which sucks caise we want the slow crawl or by a team brood xl 900kv motor. That helped in my capra alot!!! I have the neebrc one which is the same. Ive thought about maybe trying to load the latest rhino firmware to it cause i know rhino is efficient but also they use different usb adapter so may not be good idea. Tempting to try though

[@RcDungeon]

Thanks for the info, I've lowered timing still having heat issues. I've basically se this aside for something a little different build wise. I got it for a budget system so just really defeats the purpose buying a different motor. I've picked up a higher end system to use on this rig now. I will be delegating this system to more of a basher type crawler as its just not going to work for my type of crawling I have in mind for this platform. The rhino definitely does not have heat issues like this. Thank you again for thr information.

[@NEO-RC]

Wow! Yeah that’s getting hot way too fast. I’ll do a quick similar test on my Holmes outrunner system and see what it’s doing temp wise. I’ve never measured the temp but it’s only been warm to the touch. Gotta watch using jb wield near IC’s, because it does contain metal, it can cause a short between pins on the ic chips. However, if it hasn’t smoked yet with Jb wield, you should be good. Also not the best for heat transfer. A dedicated thermal epoxy is best, that’s what it’s made to do, transfer heat. Adding a little fan on the heatsink will cool it down.

[@RcDungeon]

@@NEO-RC yah it should have smoked it by now with the JB weld its definitely cooling more efficiently this is not straight JB its also for high heat and said electrical safe so maybe that's why I don't know. Yah bro I still say something is wrong with how they've set this esc up. However a short burst of speed and it'll drop temps really fast.

[@NEO-RC]

@ okay didn’t know jb wield made that, very good. If you said it, I missed it, sorry.

[@RcDungeon]

@NEO-RC I'm not sure of I did or not but yes this isn't the metal reinforced JB Weld only reason I used it is because we used this to repair a c hub port on a old cell phone and it worked for about 2 years until he phone got smashed lol! Crazy how this has actually improved heat transfer. They had I guess I'm told thermal tape under it which failed miserably to be honest. I'm not electrical guru or anything, I barely have experience with these outrunners honestly. I'm hoping they all don't get hot running at these slow speeds. I've had tons of other brushless setups none ever see temps like this. Once again I'm not a comp outrunner style guy so maybe this is fairly normal 🤔. I have a Furitek 1/10 blue tooth system coming to test fingers crossed it won't have these issues because I'm not impressed with the outrunner so far compared to the simple SE 2n1.

[@NEO-RC]

@@RcDungeon I’ve only ran the Holmes hobby outrunners and esc so I’ve not ran too many myself. I do know the castle creations esc’s get kinda hot and they run fans on almost all their esc’s. The Holmes is very close in appearance to the one you have.

[@RcDungeon]

@@NEO-RC I have a fan I may have to swap some things around on this. I appreciate the help Neo, I was figuring on running into some issues making the jump into outrunners being this is cheap system and I'm now to them. But one would assume the same basic knowledge would pass on down being its a brushless setup I don't know. I just feel like others say they perform flawlessly and I can't seem to get this one to a happy margin at best for just playing around on my coarse with.

[@01XJBenjamin]

I am seeing the same thing with my 9Imod motor and ESC combo. It is the same combo you have in this video. Way too hot too fast. I am running a stock Element Enduro drive line and axles

[@RcDungeon]

@@01XJBenjamin Thank you for commenting and letting everyone know, I thought ot was just me. I am just learning the outrunner stuff

[@jackawaki]

It’s not just you like I said I glued my buddy’s down and used thermal take I believe heat sink paste and his has been fine. But idk man I think it’s just a bad design

[@RcDungeon]

I agree man absolutely noway to push this esc into technical slow crawl I have a 9T pinion on the way but I can't see 11t-9T dropping the temps that dramatically I mean I thought this video would be pretty obvious something is wrong IMO it could be dangerous because it'll just keep cooking if your not paying attention magic fire time

[@jackawaki]

@@RcDungeon no I get it man that’s way way way to 🥵 . I wonder if you could solder on new wires like ofc thicker wire ? Like maybe the wire isn’t adequate for the draw ? I’m not sure.

[@jackawaki]

The only reason I asked is because of how hot it was at the connector?

[@RcDungeon]

@@jackawaki yah I honestly wish I knew. I'm going to turn the timing down in the settings after researching to see if that helps 🤔. I'm just not really good with these outrunners and these PC style programming Esc's unfortunately, I'm trying to learn most I can at a quick pace lol!

[@jackawaki]

@@RcDungeon lol me too and I just ordered a i9 mod just so I can mess with it . I’m curious as hell now . lol I’m intrigued. Thank you for the video really got me thinking sir appreciate it .

[@kevinbreaker2683]

Interesting👍🫡

[@RcDungeon]

@@kevinbreaker2683 I try, thanks Kevin

[@twilliamrc4wd]

If you go online and look up for the PC and electronic industry thermal paste epoxy Works 100 times better than J-B Weld

[@RcDungeon]

The thermal paste literally just melted off originally, so I used what I had. It wouldn't matter because any esc getting this hot will cook I don't care what you use on the heat sink over 200 degrees is 30 seconds is to hot

[@twilliamrc4wd]

@RcDungeon that wasn't the thermal paste they call them Thermal pads that you can buy I have those on graphics cards but you got to have apply pressure to him if you don't they're not going to stick

[@twilliamrc4wd]

@RcDungeon and did you program the ESC and to the right kv of the motor or no

[@twilliamrc4wd]

When you program the ESC make sure you have the right KV and the right timing on the ESC and then calibrated

[@RcDungeon]

@twilliamrc4wd yes its all set thisnone actually came basically set from the packaging which surprised me honestly. Planning on trying a different motor eventually before just tossing this on a trail rig and calling because its actually a fairly decent system if it didn't have these heat issues on startup

[@creekcreeperrc7972]

Two problems I see. Your running to big of a motor. That things drawing 90ish amps from a 80amp esc IDK why they sell it in a combo. Secondly the big out runner's don't like to start up smoothly like a smaller can does. another thing to remember any am32 will overheat while staying in sinewave startup aka you aren't hearing anything but its spinning means you're heating the hell out of it. You need to go down on pinion size so its spinning at a speed where you hear that little ringing sound from the motor. Keep it spinning enough and you might be fine. Also check your program settings on the esc. Hopefully this helps. Oh and torque wise out runners usually produce about 3 times the torque of a equal in runner.

[@RcDungeon]

@@creekcreeperrc7972 well its definitely not gearing I'm all the way down to a 9t pinion. Settings are set as close to the KV as the firmware or whatever they call it has which is I think maybe 10 KV off from the motor its just how that manufacturer has the program setup. If these outrunners can't handle super slow crawl means they are useless to me then. Still going to try and lower timing to see of that helps. I appreciate all the info, my buddy has almost the exact same setup with his rhino as well as similar esc and he has no heat issues whatsoever so again I don't see why this combo would have these problems. I'm not comp guy but ot should be able to handle more than 20 seconds of super slow crawl before hitting 150-200 in temps

[@creekcreeperrc7972]

@RcDungeon I had the exact same issue with my rhino it would heat up just as fast. Never even got it outside. Switched to a 3532 in 1470kv and it's been running for a year no issues at all. I also noticed it needs less power to start spinning giving me much smoother startup than I had with my 3542 1850kv. I have had soso experience with 9imod products..

[@RcDungeon]

@creekcreeperrc7972 Thank you Rc brother I will definitely swap out to a lower KV and try this esc again. I appreciate the information

[@creekcreeperrc7972]

@@RcDungeon Anytime, Look for something smaller length wise,that's going to give you the best chance of it working correctly. 1850kv isn't high enough to be the issue.