Rotax 912S fuel pressure
Can one of you helpful folk tell me something? I want to know if the Rotax supplied 912S mechanical fuel pump (not the peirburg one, the replacement one that was free issued a few years ago), provides a constant pressure (ish) into the carb supply pipe across the engine rpm range. I know that some of you will have a fuel pressure gauge fitted and can see what is going on. I don't have one on mine.
I'm kind of interested for fuel usage and tank balancing (the return line only goes to one of the two tanks) calculations. If the fuel pressure remains constant with rpm then the return flow will be constant. If it is I'll borrow a flow meter and measure it.
Ta.