Comparing the torque output between a HW G5 torque and a G4 stator with an option rotor from G4R (1780G), so the G4 would be more like a G4R in reality. You will see the timing information in the description of the graphs. The G5 draws more current even though it is at a slightly lower timing however the stator resistance of the G5 is lower so it will by nature draw a little more current. There is a good bit of gain at the mid range while it retains the same top end.