I kind of agree there. The 6S is a very fast motor, but it does spool up all that fast, and with something like a Pro 4, you want it to spin up as fast as possible.

On top of that, mine is in a 4wd stadium truck which a) has a lot more drag on the surface, and b) is a lot heavier.

I think it would have way too much torque too - youd be facing the way you came all the time.

The 380c-6 has a stupidly high Kv rating, which would mean silly speed, and controllable acceleration (i've also heard reports of people getting their T4s to wheelie with them ;)). And you save $4.

The it's the 380c that will accelerate uncontrollably, not the 540.

well i can handle it I hope...thanks for all your help guys

i now have a 6t 380 guys and quark 80b just gotta wire it up...gonna stay with 6 cell packs since i have so many of em...also whats good for 2s lipo? from feigao?

The same motor you already have.

so a 6c woudl be good in a truck with moab 2.2's? using pede tranny and HPI NMT DIFFS?

It should work fine, as long as you gear low enough. And btw, that's not a bad thing that motor just likes to rev really high so there will be no lack of speed.