RE: Fuel pumps and valves
Mike,
All the engines that use a 2 cell lipo (or 3 cell A123) are using 6v valves. I believe the ECU regulates the voltage to the items (I know it does to the pump)
Even the 12V engines, such as the evoJet, use a 6v valve. The ECU regulates the voltage to the valve. (thanks for the correction Arno!)
Chad
*** Information above was corrected***