Robitronic Mantis HV truggy with 10s A123

[othello]

Update: same 11lbs truggy, new motor: Neu 1515/2Y (1100kv) with proline badlands.

After trying different pinions, this now is the crazyest setup i have ever driven. 15t pinion / 52t spur. 12t bevel / 42t bevel. Total transmission ratio: 1:12,13

Here is the video taken while driving on tarmac on a rainy day

This for sure is no reasonable gearing and is too fast for offroad. I was impressed that the electrical components took the punishment (digital driving) without breaking too much of a sweat.

Eagletree graph of the whole run

. Highest Power peak i have recorded since i started this project: 2.6KW
. Up to minute 8.5 i drove on tarmac. The rest was driven on wet gras.
. The motor reached 41°C (106°F) at the end of this run. Ambient temp: 9°C (48°F)

1 Minute on tarmac in detail

. 70-100A peaks on tarmac.
. 20A average = 555 Watts -> 330mAh per minute

Top speed passes

. 30000rpm were reached: theoretically around 42mph (67km/h). At this speed my front wheels do balloon heavily.
. After the first peak, amp draw stays at 45A with a battery voltage of 28,5V equalling 1300 Watt in to stay at top speed with badland tyres on tarmac.

Now it's time to get more reasonable and using a smaller pinion again: 13t or 14t.