Making an esc better?

[nativepaul]

Ive not heard it done with castle controllers but in the SAWs (top speed record running) boat world, there isn't a speedo available that will cope with the currents of a sub 10 second runtime, some folks have taken the schultze 32/160 and stacked extra powerboards on to increase the current handeling ability, if the MM has seperate boards for the brains and power it may be possible too.

I don't belive there is any way to increse the voltage it will work with bar desoldering alll the components and replacing them with higher voltage versions(if they fit), but with the time, knowledge and expense that would take you could probably build a new controller to your specs.