hello everyone, first post here. I'am really impressed by all the builds you got here, kinda makes me not want to post mine.. but hey, here's what I got:
Board: MBS ATOM 90X
Motor: 2 Turnigy Aerodrive SK3 - 5055-430kv Brushless Outrunners
Battery: 2 Turnigy 5.0 5000mAh 6S 40-50C LiPO Packs
ESC: 2 Turnigy 85A SBEC 2-6S LiPO ESC
Radio: Hobby King GT2B 2.4Ghz 2Ch Tx & Rx
Ratio: 55/9T = 6.1 reduction
Stats: Unfortunately, current Max Speed is zero kph, running time is null too so.. I'm in serious need for advice. please help, I'd certainly appreciate it.
Symptoms:
COGGING.. when I finished assembling it I did some bench testing on it.. seemed like everything was working. Stepped on it, WOT, nothing but cogging.. motors seemed to be trying but barely moved.
Root cause: either the motors don't have enough power, the batteries don't have enough juice or the motors are losing sync with transmitter.
Notes:
Motors are spec'd to deliver up to 1750W each.
Max current draw with load (my weight) was 8Amps.
Voltage measured on the batteries was a little over 23V, batteries are brand new, never drained nor charged after received.
Calibrated throttle but didn't make much difference.
I am considering upgrading to SK3 6374s, 150A ESCs and a couple more batt packs to go 12S, but I don't know if just throwing money at it will fix it.. somehow it looks like some of you out there have been able to ride with similar set ups.
Any thoughts?