hobbywing 120amp problems

[jpmatrix]

Just moved over to 4wd and got my self a durango. I went and purchased the hobbywing v2.1 120amp from giantcod. Installed in the durango together with gens ace 6.5t motor.


Had punch on 4 and timing on 0 to start with. 21t pinion on a 87t spur as that is what most other people are on.


Had thermal cut off on lap 8 ( 3 and half minutes) on high grip astro.
Checked everything, no binding, drivetrain fine etc. Bodyshell has holes cut out for ventilation.


Themaling all the time so i made the mistake of disabling the thermal protection and low and behold the gens ace lets go.


So next I dropped down to a19t pinion but still thermaling.


Changed sensor lead but still thermaling. Someone mentioned gettingbigger capacitors as it only has 2. but didnt try that.


Had enough of the hobbywing so ripped it out and tried my old speed passion 2.0 lpf which has a lower rating than the hobbywing but can still handle a 5.5t.


And guess what, the car ran fine and lasted the 5 minutes without thermalling.


so what on earth is going on with this hobbywing 120a that is brand new?
Its obviously making the motors very hot. would this be a firmware issue.
Currently it has only the 10 menus unlike my lpf which has 15 with the turbo timing options although i leave that alone.




At our club, there are a few durangos running the hobbywing b ut dont have issues. Although they have updated with speed passion firmwre tith all the turbo options.


Any ideas

James

[Getpip]

James
You don't mention what firmware you have installed but if you have not updated it I suspect it needs flashing with something more up to date. (I use 119-MOD)
It should be a simple fix.
You will need the LCD programmer and a computer, or a friend with such.
They need updating out of the box to get the full range of options.
Pip

[jpmatrix]

Originally Posted by Getpip

James
You don't mention what firmware you have installed but if you have not updated it I suspect it needs flashing with something more up to date. (I use 119-MOD)
It should be a simple fix.
You will need the LCD programmer and a computer, or a friend with such.
They need updating out of the box to get the full range of options.
Pip

It was straight out the box.
How do i know what firmware its got?

[sly]

At a guess, its under geared, my hobbywing 120amp in my rango is on a 23t with a 5.5t motor it get warm but never hot.

[Getpip]

You need to plug it into the LCD box which will then read the ESC.
I am fairly certain this will be your problem.
It is well worth getting yourself the program box so you can make trackside adjustments (under £20).
You can then download the updates and install them yourself.
In the meantime if you want to see me at the track next week I will take a look, although I wont have a laptop with me.

[grimidol]

Not sure if it has been said but dont all hobbywings come with stock program not modifed ?
So you might have it on stock what is no good for a 6.5 turn i think it would over heat fast and go pop

[adon30]

Mine had the software version on the side of the box (528MOD). But I got it from the official UK importer.

I think 119MOD is the newer version (?)

[RogerM]

Originally Posted by grimidol

Not sure if it has been said but dont all hobbywings come with stock program not modifed ?
So you might have it on stock what is no good for a 6.5 turn i think it would over heat fast and go pop

If you get them from the official UK importer (Racers In Exile) they will load any firmware you ask them to .. just remember to ask.

As for other sources I would suspect they are pre-loaded with a stock profile