Fastest brushless setup advice

[DrKnow65]

KV is relative to voltage as to the RPM it will produce. A 5700KV at 7.4v will be slower than a 4600kv at 11.1v.

Most motors tend to run well with a top rpm of 35-40Krpm. That in mind if you want to use a 4100KV neu, you'll want to run it on 2-3S (7.4-11.1v), most guys are going with lower KV motors and higher voltage batt's. This produces the same watts of energy without the high amps that cause heat.

At some point the power you can put into the revo will exceed it's ability to remain upright. The drivetrain will need upgrades and the whole project becomes a pain to keep alive. Not bashing the revo at all, just saying at some point you can have too much power.

6S (22.2V) and a 1700KV motor (neu 1515 2.5D?) would net you more power than you can drive most of the time anyhow.

Just my 2cents :)