3.5t = ~9400kV. Per the comments above that is for mod on-road racing. You’ll need a top spec ESC for that motor, it even then it would be uncontrollable in a 2WD off-road car. Lower end ESC and stock spec usually advise down to 10.5t on-road and 13.5t off-road that’s a range 2400-3400kV.