HH's BR/XL operating on 6s LiPo

[Jeepy84]

Ah, I was misreading or something, I thought you said you had a Trailmaster Sport, not an Expert. Glad to hear it worked.

Sent from my XT1585 using Tapatalk

 

[THE ROOKIE]

you know its one of those things ,there is always some internet genius that says it cant be done or wont work. kinda like the 11.1 volts to a servo. i have never ran nothing but 11.1 volts on any servo . have had no problems. kinda like the car amplifiers theory. the more voltage you run the more power it puts out and the less heat it puts out. as in you have 800 watts and you have 12 volts amp dosnt really put out 800 watts and it gets hot. run 14 volts to said amp and it puts out 800 all day and stays nice and cool. i have noticed on all my motors ,servos ect . the more voltage the cooler it runs ,as i think it dosnt struggle as much. i run very short motor wires 2 inches, all the esc plugs and and servo plugs i make my own out of motor wires high strand count and almost 5 times the diameter. im not a basher at all so maybe thats why my shit stays cool motor esc servo ect. maybe im just gettjng lucky but it seems to work. good luck with the 6s curious tk see how long it lasts. i imagine if you just were mild with the trigger it might last sometime

Sent from my SM-G935P using Tapatalk

 

[EeePee]

Thing is, the Traxxas motors are legit junk. Hit or miss style junk.

6S voltage into a 35 turn is gonna make the brushes bounce and kill the commutator quick.

 

[MattTheGenus]

you know its one of those things ,there is always some internet genius that says it cant be done or wont work. kinda like the 11.1 volts to a servo. i have never ran nothing but 11.1 volts on any servo . have had no problems. kinda like the car amplifiers theory. the more voltage you run the more power it puts out and the less heat it puts out. as in you have 800 watts and you have 12 volts amp dosnt really put out 800 watts and it gets hot. run 14 volts to said amp and it puts out 800 all day and stays nice and cool. i have noticed on all my motors ,servos ect . the more voltage the cooler it runs ,as i think it dosnt struggle as much. i run very short motor wires 2 inches, all the esc plugs and and servo plugs i make my own out of motor wires high strand count and almost 5 times the diameter. im not a basher at all so maybe thats why my shit stays cool motor esc servo ect. maybe im just gettjng lucky but it seems to work. good luck with the 6s curious tk see how long it lasts. i imagine if you just were mild with the trigger it might last sometime

Sent from my SM-G935P using Tapatalk

I agree, the internet is a cautious place. That said, which servos have you run 11.1v on?

 

[TacoCrawler]

Thing is, the Traxxas motors are legit junk. Hit or miss style junk.

hope I get a good one. And it lives long enough so's I can thrash it. :twisted:

6S voltage into a 35 turn is gonna make the brushes bounce and kill the commutator quick.

Why is that ?

comm is not true enough ? insufficient bearing tolerance ? soft springs ?
What is causing this brush bounce you speak of ?

I'd be more concerned about excessive motor heat and damage incurred.
But geared as I am... the motor is just becoming hand warm.
Guess I'll hafta' play a little longer duration with some extra throttle play to know more.

Thought I read somewhere that a quality built 540 motor can operate @ 2.4 v - 30.0 v ...BS claim ?

I realize that brushes (+ rebuilds) have a longer consumable life running at 12v (or less)

I'll likely smoke that 21T Titan budget motor in short order
but it's only a twenty spot wasted to find out.
If it can't handle 6s... bet it'll become hot and let me know.

if it billows smoke at plug in... there it is ;-)

I'll sacrifice both the Titan and my HH's motor just to see which survives 6s torture longer. If they smoke... oh well.

And then I'll know what I learn ;-)

 

[EeePee]

You're going to be spinning the thing faster than it's intended speed. Every time the brush goes across the slot on the comm, it moves. Amplify that to ludicrous level, and it gets worse. Put harder springs on it, and now you're just smashing the brush into the comm copper.

Thing with the Titans is the crap springs, which are just bent tabs of metal, and hard brushes.

I don't see the point of running a motor on 6S unless it's a slow duck, like the 14 turn Holmes Puller I referred to earlier, or a 55 turn.

 

[TacoCrawler]

thanks for the explanation, seems plausible.

I generally run 3s most all of the time.
this was just to see if my build would hold up to 6s use and so I had to try.

Now on occasion I have near instant super powers with a simple plug n play harness :mrgreen:

Will it hold up ? ...since consumables don't lasts forever, probably not.

btw my 1/6 12 lb slug has to pull a 4 lb trailer with an RC quad atop it.
So the more torque the merrier and too much is never enough IMO.
It's just a simple matter of driving and using some throttle control.
I rarely utilize a WFO throttle for any lengthy period, even using 3s.

I really like having this super torque capability... it's like having 600 hp - boost at yer whim.
Likely would add to anyone's grin factor.

Having this measure of success has me wanting to up the ante tho' and buy into a quality brushless system.

I'll hafta' check muh coin jar's count, to see if that possibility is getting any closer !? Lol

 

[Jeepy84]

You could always get that CEN monster truck, or really splurge on an XMAxx for grin factor, lol.

Sent from my XT1585 using Tapatalk

 

[THE ROOKIE]

I agree, the internet is a cautious place. That said, which servos have you run 11.1v on?

7950 7980 and my current protek 170tbl. that one by far is the best servo i have run . i bought 2 more for both my other cars. it currntly has 16 850mah 75c packs through it and not once has the servo even warm on a 6min 10 gate course.

Sent from my SM-G935P using Tapatalk

 

[TacoCrawler]

3s LiPo compared with 6s LiPo power...

https://youtu.be/J1BMM51y25M

realize this 1/6 scale crawler weighs in at near 12 lbs.
Add another 5 lbs when pulling the Trailer with quad atop that.

Yes it could go much faster if I geared a little taller.
But I'm after super torque at lower crawling speeds.
Not interested in its top end speed.