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Ramman
09-24-2004, 07:45 PM
Hey guys, Finally got the Z21 up and running the way it should be, and finally got the 21 pitch to work. But my RPM
s are a little low, at WOT Im barely getting 4200 out of it, with it trimmmed. So i was gonna go buy a 13 3/4 x 21, Im running a 14 3 /4 x 21 now. But I was looking into the 4 blades. Any pros or cons about running these? Good Idea or Bad? And what size 4 blade would be good? Are they the same as the 3 blades 21 pitch or do you go lower because of the 4th blade? Any help would be great!! THANKS!

Walt. H.
09-24-2004, 11:25 PM
IMHO, I'd drop down to a 3 bladed 14-1/4" dia X 19" pitch to get your rev's up to 4600-4700 :checkered

Try a loaner before buying.

Walt :wavey: