Surprised a 3s can actually move a buggy along! i'd love to see a vid of that. But i have seen videos of a 4s buggy on a 2600-2800kv motors, they look fast, don't get me wrong. I just can't help but think that maybe he's not used to the power. One more time bugman, i don't know your personal driving abilities, or how long you've owned your buggy for. But my point was that most people (not everyone) runs a similar setup to that. Now if you were running a buggy with a 1521 on 6s, i might be a little worried. But aside from that, your top end should be around what the nitros are, and just have great torque. Maybe just more driving practice? hope i am not offending you by saying that. keep in mind i have never seen your driving.