Sorry, sport cruiser guy here.. original vs best fit prop for overall performance
08-27-2021, 07:19 AM
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Sorry, sport cruiser guy here.. original vs best fit prop for overall performance
Hello,
I had this long detailed message and it vanished.
I am from Lake St Clair in Michigan.
I was browsing the internet for propeller help with my 2002 SeaRay 290 Sun Sport. I saw that a dealer in upstate NY had a list of "best fit" propellers for searays similar to mine and was wondering if you guys could suggest a best overall propeller for my boat.
The boat is a 2002 Sea Ray Sun Sport with twin 350 mag / bravo 1 / (regular) mirage 14.75 x 21 p propellers.
I've owned the boat for 2 seasons. It seems to cavitate more than I would expect coming up on plane.
Top gps speed yesterday is 48mph at 4800 RPM, 4000 / 40mph 3200 / 30mph and doesn't slip,so it seems to run well once on plane.
I have a little vibration that I think could be propeller related.
Either way, I have been planning on replacing the propellers.
If you gys can and would help, I would really appreciate any help with prop selection. I am not out trying to race anyone or anything like that, but would like a good performing boat both bottom end and top.
Please and thank you for any suggestions that you might have.
I had this long detailed message and it vanished.
I am from Lake St Clair in Michigan.
I was browsing the internet for propeller help with my 2002 SeaRay 290 Sun Sport. I saw that a dealer in upstate NY had a list of "best fit" propellers for searays similar to mine and was wondering if you guys could suggest a best overall propeller for my boat.
The boat is a 2002 Sea Ray Sun Sport with twin 350 mag / bravo 1 / (regular) mirage 14.75 x 21 p propellers.
I've owned the boat for 2 seasons. It seems to cavitate more than I would expect coming up on plane.
Top gps speed yesterday is 48mph at 4800 RPM, 4000 / 40mph 3200 / 30mph and doesn't slip,so it seems to run well once on plane.
I have a little vibration that I think could be propeller related.
Either way, I have been planning on replacing the propellers.
If you gys can and would help, I would really appreciate any help with prop selection. I am not out trying to race anyone or anything like that, but would like a good performing boat both bottom end and top.
Please and thank you for any suggestions that you might have.
08-27-2021, 08:37 AM
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Mercury prop selector: (based on 21p/4800/48mph - Express cruiser/ B1 1.5 ratio (guessed)
08-28-2021, 07:35 AM
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Thank you for that information. I am asking which of those propellers would someone with a little more knowledge than me select. What are the advantages and disadvantages of four blades, etc.
08-28-2021, 08:07 AM
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