coolings
New Member
Okay, I have decided to upgrade from an aluminum prop to SS. So I went to my local prop shop. My boat came stock with a 14.125 x 21p. RPMs would get about 4600 and speed would get about 46mph via GPS. I would fall off plane about 18mph.
The guy at the prop shop let me test a 13.875 x 21p prop. The prop was a Michigan with a cup. With a full tank of gas, light load and just myself, WOT RPM was at the high range, 4800. I could get about 49mph. A decent improvement. Holeshot was about four seconds. I could stay on plane about 16mph.
I tested a second prop. A Mercury Mirage Plus. Diameter was huge, 15.125 I think. Pitch was 19. WOT Rpm was too low, at 4200. Max speed was 45. Holeshot was two seconds. I could stay on plane at 13mph. Other than a very low WOT RPM, this was the perfect prop for watersports and traveling in choppy water.
The prop shop did not seem to have much of a selection for what I was looking for. So I did some research. Mercury recommended several props for my boat.
I want more of a cruising prop. I decided to purchase a Mercury Enertia, 13.5x22p. This will be the first vented prop I have used. I bought the prop outright on ebay for $400. I figured if it spins to fast, I will have a cup put in it. Also, if it does not perform well, I will just have to list it for sale and purchase something else. From everything I could find, I think this will be the prop for me. I want to clear 50mph. Four seconds on the holeshot is okay with me. I will post the performance after I receive. Oh, I hope I am right.
The guy at the prop shop let me test a 13.875 x 21p prop. The prop was a Michigan with a cup. With a full tank of gas, light load and just myself, WOT RPM was at the high range, 4800. I could get about 49mph. A decent improvement. Holeshot was about four seconds. I could stay on plane about 16mph.
I tested a second prop. A Mercury Mirage Plus. Diameter was huge, 15.125 I think. Pitch was 19. WOT Rpm was too low, at 4200. Max speed was 45. Holeshot was two seconds. I could stay on plane at 13mph. Other than a very low WOT RPM, this was the perfect prop for watersports and traveling in choppy water.
The prop shop did not seem to have much of a selection for what I was looking for. So I did some research. Mercury recommended several props for my boat.
I want more of a cruising prop. I decided to purchase a Mercury Enertia, 13.5x22p. This will be the first vented prop I have used. I bought the prop outright on ebay for $400. I figured if it spins to fast, I will have a cup put in it. Also, if it does not perform well, I will just have to list it for sale and purchase something else. From everything I could find, I think this will be the prop for me. I want to clear 50mph. Four seconds on the holeshot is okay with me. I will post the performance after I receive. Oh, I hope I am right.