MambaMax ESC quirk

[mtucker]

3. 1/8 vehicle: basic cogging at start up.

That is the cogging I see.

The first time at the track I only saw very basic cogging from a dead start. This was during a 10 minute B-main and then during a 15 minute A-main. This is with the Mamba Max on a Neu 1512 2.5D with 4S 5AH Enerland Li-Pos. I was quite hapy with the small amount of occasional cogging since the system is in a 8.5 pound Hyper 7 1/8 buggy.

I got the idea to crank up the drag brake from 20% to 40% so I could just let off the throttle on the turns, transfer the weight to the front, and make sharp turns. At the track it wound up being a bit too much so I went to 30% drag brake. What happened though was the occasional cogging was still there, but sometimes I could not get going forward at all again unless I gave it a push. In fact, the buggy crawls backwards a bit when doing this severe cogging. I drove over to my starting place for the main race starting and stopping a few times, but when it came time for the start of the race I was left shuttering moving slightly backwards. Luckily the nearby turn marshall gave me a push with his foot and off I went.

it doens't seem like the change in drag brake should have caused this, but since I never saw that problem on my previous visit to the track it makes me wonder. It was the ONLY change I made (timing, punch.... all the same). The severe cogging happened three or four times and I only ran the 10 minute B-main. Before the drag brake change I never saw it once with over twice the amount of time at the wheel.
I set it back to 20% and hope to get to the track for some practice runs this holiday break.

Matt