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  1993 Rage rpm and impeller pitch

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Author Topic:   1993 Rage rpm and impeller pitch
sailnphotog posted 03-24-2004 02:48 PM ET (US)   Profile for sailnphotog   Send Email to sailnphotog  
I am wondering if anyone has knowledge of the typical max rpm the 93 Rage reaches (Yamaha 50 hp), mine usually tops out around 5500. Also, the impeller was changed to a stainless model and I am wondering what the pitch should be, could pitch affect rpm?? Thanks for any help!
bradrage posted 03-24-2004 03:19 PM ET (US)     Profile for bradrage  Send Email to bradrage     
I've got a 94 rage w a 115 turbojet. Not sure about the specs for the 50 hp Yahama jet. I believe the lower the HP and Torque the greater effect pitch has on rpm. The jets are limited to impeller diameter, the greater pitch the more water you move with each rev. The more water you move with the same HP/torque the less RPMs you'll reach at WOT.
Good luck jetting

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