"I have a 21' Chris Craft
"I have a 21' Chris Craft Bowrider Limited 205HP 4.3L V6LX Mercruiser.
I have a 14 1/2 " X 19 aluminum prop and it is not getting me up on plane fast enough. But I am almost at my top RPM range which is 4400 -4800. Alao with this prop I am having either ventilation or cavitation problems, not sure which. When I turn, RPM's go up and boat speed goes down. If I trim it up a little, same thing, RPM goes up speed decreases. I had this prop on a 19' bowrider and it worked perfect. Everybody said 19 pitch is the best all around for that size boat. That does not seem to be the case for this boat. And no one can tell me what the perfect pitch is for the 21' chris craft.
Can anyone help?"
"I have a 21' Chris Craft Bowrider Limited 205HP 4.3L V6LX Mercruiser.
I have a 14 1/2 " X 19 aluminum prop and it is not getting me up on plane fast enough. But I am almost at my top RPM range which is 4400 -4800. Alao with this prop I am having either ventilation or cavitation problems, not sure which. When I turn, RPM's go up and boat speed goes down. If I trim it up a little, same thing, RPM goes up speed decreases. I had this prop on a 19' bowrider and it worked perfect. Everybody said 19 pitch is the best all around for that size boat. That does not seem to be the case for this boat. And no one can tell me what the perfect pitch is for the 21' chris craft.
Can anyone help?"