ive heard brushless is not the way to go on the one18th forum because it wont make it too much faster for the price. get the BB motor and call it good (that is what ive heard)
I actually will not make it faster, but it will make it way more efficient (close to 2x the runtime on the same batteries). Even if you get the BB version of the brushed motor it still sucks down a lot of current.
Besides - it's just fun to do it.
“Everyone has a right to be stupid; some people just abuse the privilege.”