Hello from France,
here's my new motor and new batteries...
The Leopard 4074 - 2.150 kV - sensored - 2.500 W
(before HobbyWing 4068 - 2.250kV - sensored - 1.250 W)
Hobby Center (Kypom) 4S / 6.500mAh / 70C
(before GensAce 4S / 5.000mAh / 40C)
Usually, I run a 20t pinion but, with this new combination, for the same top speed, I run a 18t pinion.
Temperature on the engine and the battery is much lower and the runtime is now around 10 minutes (7 minute before) !!!