Originally Posted by two stroke mick
Hi Ian Got a 19" pitch prop last night. I never did let the engine go all the way to WOT with the 17" as it would rev past 6500. The 19" prop is good for 33-34 knots one up at 6400 revs (wot). 1 person, 53lt of petrol. I have 10 lt of petrol and a small anchor in the bow locker. I think I need more weight in it when facing a headwind?
They do feel a bit flighty without any load don't they . sounds like your much lighter wieght engine is making all the difference , I expect the tubes are completely clear of the water when you are on the plane . The etec is higher geared and you are still getting more revs than i did with a 19 pitch .
From memory unloaded mine would do 40mph at about 5800 rpm . i guess you could work out the differences there for the different rpm and gear ratios , but sounds liike you could pull an even higher pitch maybe