Hey whats up I have a SBR and the original servo was not getting the job done so I got aluminum 5th scale mount and a Spektrum 9020 installed it and still not much better. Is there a way to get it more voltage or you cannot do that Stock ESC and running 2 11.1 batteries

that servo is amazing, stock servo saver might be loose.

You can run 8.4 volts with stock esc, but for ideal performance you need external bec

What is the Stock voltage I am running the servo at now. And I am not sure how the change the voltage setting and also when you say external bec what is that and what does it do

Stock voltage is 6 volts. If you follow esc program guide in manual you can change stock internal bec output to 8.4 volts

external bec is a separate bec circuit, and they generally have more adjustability and current rating

Pictures of bec in my super rock Rey