my truggy (work in progress)

[Serum]

the runtime pretty much depends on your drivestyle. i would say a 8-10 minute on the track.

About your motorchoice; here is what you should do;

do some calculations on the rpm's/voltage. and aim for the 30-35000 rpm. so with a 16 cells setup, you would need a kv of about 1800 rpm. Do your gearing calculations from there.