[Mister-T]

Hello,

I've some issue with a Mamba max pro that I intend to use on a custom short course truck on 4S lipo

About my setup:

- Mamba max pro used in sensorless only
- 4S lipo 5000 mah 20C
- Authentic Steve neu motors 1512/2D/F
- Gearing the shortest my motor mount allow (13 teeth gear)

Important : That motor have been succesfuly used in a 1/8 scale off road car with a mamba monster without issue.

My issue are with cogging when trying to go reverse , It can't start the motor and the motor cogg badly when running in reverse.
In such situation everything goes hot wire, ESC and motors.
When going forward the problem is different, the car is running OK and start up are OK 3/5 of the time but any fast change in speed (squezzing the throttle by short pulse) result into a brutal cogging/ full braking effect, almost a lock down , It's bad for the mecanic and extremly disturbing to drive

I thought it was a bad connector issue, so I redo all motor/ESC soldering job - still the same problem

I tried several software and setup, with that MMP the best (or least bad cogging situation) was with the 1.26 or the 1.32 without punch control and torque limit set to 7 (i did the kv test), but the problem remain both on backward and forward.
For backward issue, I did test by simply switching phase so a forward action would make the car go backward (checking if it's a mechnical issue). The motor then run smoothly in reverse motion but cogg If I apply a burst of acceleration( the typical forward problem)
I tried with a different battery without noticiable improvement.

In the end I just unplugged the MMP pro an tried to mount my mamba monster to run the motor (just to check the motor). I could drive the motor in forward motion flawleslly and backward does work too...

I'm seriously running out of idea, I wanted to use MMP I wonder if it's some kind of hardware damage or software issue ?