kyosho kanai on 3s

[Semi Pro]

that sounds like a combo with problems

normaly people run smaller motors on 6cell because the highter voltage normaly draws less amps and runs cooler.

you normaly gear a race buggy for 33-40 mph depending on the size of the track.

we need your spur size to calculate your gear ratio

this may help http://www.scriptasylum.com/rc_speed/index.html

gearing it with a 17/50 would be 35mph unloaded but im pretty sure it will over heat on only 3 cell