motors keep overheating?

[campbellspurloc]

Unfortunately after a lot of testing I have come to the conclusion that the NEU Motor I was using is the only motor out there that can be run in a 1/8 buggy hard for 20 minutes without overheating. I keep trying different motors and they all get hot after 10 minutes(like 60 degrees hotter than my Neu after 20 minutes). Anyone had any experience with a motor that they are seriously running on a track for more than 15 minutes straight in an 1/8 buggy that is not overheating?

[LaBrother]

how hot is over heating?

[starluckrc]

It comes down to efficiency which the Neu and Plettenberg motors are known for. Lehner should do sell also, but I think the Plettenberg Maxximum with fan is the best 1/8 buggy candidate.

[cart213]

Have you tried the Feigao 540C 9L? It has cooling fins and doesn't overheat in my MT2, which at 7.7 lbs, is roughly the same weight as a 1/8 buggy.

Tcoleson uses this motor in his 1/8 buggy, and afaik, he likes its performance. Correct me if I'm wrong, tcoleson.

[tcolesen]

I have found that in the normal street driving that I do, the motor doesn't get any hotter than 140-150 degrees at the end of a run. BUT, when I was at Hot Box (a 1/8 scale track for those that don't know), my temp. gauge showed a temperature exceeding 180 degrees when the battery was finished. It may be possible that I am simply running too low of a pinion gear, since I have seen so many people using a higher gear ratio than me. FYI, my buggy uses 13/52 pinion/spur on 13/43 diff pinion/ring gears, on 4s Lipo.

[campbellspurloc]

how hot is over heating?

180 deg

[campbellspurloc]

Have you tried the Feigao 540C 9L? It has cooling fins and doesn't overheat in my MT2, which at 7.7 lbs, is roughly the same weight as a 1/8 buggy.

Tcoleson uses this motor in his 1/8 buggy, and afaik, he likes its performance. Correct me if I'm wrong, tcoleson.

I have a Feigao 9L and it is overheating along with the wanderer XL.

Tcoleson goes to the same track as me and I have seen his overheat as well.

My Neu motor is about 120-125 after 20 minutes of hard running, these other motors aren't even in the running with this. The problem is that all the controllers I have don't like the Neu motor, and have quirky problems with it.

[campbellspurloc]

It comes down to efficiency which the Neu and Plettenberg motors are known for. Lehner should do sell also, but I think the Plettenberg Maxximum with fan is the best 1/8 buggy candidate.

I agree with you Jamie, the problem is all these controller companies that you and Mike are selling don't work with 4 pole motors(ie Neu). So the result is I have a motor that will do the task, but no controller to run it properly. I wish I could get a motor and controller that would work, it doesn't seem like that tough of a task.

[campbellspurloc]

I have found that in the normal street driving that I do, the motor doesn't get any hotter than 140-150 degrees at the end of a run. BUT, when I was at Hot Box (a 1/8 scale track for those that don't know), my temp. gauge showed a temperature exceeding 180 degrees when the battery was finished. It may be possible that I am simply running too low of a pinion gear, since I have seen so many people using a higher gear ratio than me. FYI, my buggy uses 13/52 pinion/spur on 13/43 diff pinion/ring gears, on 4s Lipo.


Hey Travis,
I remember when I was with you that day @ hot box, you were letting your motor cool down because it had overheated. This is the same problem I had. It is not your gearing, it is the difference between bashing around in the street and going to a track. I can test over and over at my house and not overheat anything, but the moment I go to the track, it always overheats. You just can't mimic the stress that you put a motor and controller under @ an outdoor track, when you are in the street. It also has to do with the type of driving you are doing. If you are just cruising around the track, the motor is going to run cooler than if you are running around under race conditions for 20 minutes.

[tcolesen]

If I could afford any 2pole motor that would work, it would be a Lehner. They are high quality, and have segmented magnets (like Plettenburgs). So, that means that they should run cooler than a comparable-sized Feigao motor. Unfortunately, my budget is not nearly large enough for me to be able to afford a Lehner (let along a $150 Lipo), so unless I start making a lot of money, I can't try one out.

Once I am able to make it up to the track (this weekend?), you can try out the Mtroniks Genesis Truck. Several members on here have tested the Pro version with 4pole Plettenburg motors with great success, so the Truck should handle it just fine. The only thing that there is to worry about is the amp-handling capability of the Truck. I'm not sure how it will hold up in that respect to your Neu motor, but we can find out.

[campbellspurloc]

Cool, I am going this weekend so let me know.

[starluckrc]

Which Neu wind are you running? The Truck esc should run it, so try it out when you get a chance. Make sure the timing is advanced all the way for starters.

[campbellspurloc]

NEU is a 1515 1Y
I would like to try that controller, but do you think it would hang in there with the heat?

[tcolesen]

If it doesn't, a fan could be put over it.

[campbellspurloc]

a fan is not always a cure. I put a fan on the BK and it still went to 180deg after 10 minutes. It has more to do with the quality of the fets than the fan.

[starluckrc]

It should handle it. That motor isn't working too hard in a buggy. Doesn't take much current with it's low kt.