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Happy to hear it worked out. I have a lot of respect for performance marine
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Originally Posted by minxguy
(Post 4493244)
Mark, your wife back in the boat with you?
Ken |
Originally Posted by snave8
(Post 4492893)
I gained 4-5 MPH by adding the shorty to my non-ho 496.......But, that's comparing what I was seeing on the stock Livorsi water speedo to what I'm seeing now on GPS....I know, I know, I should've GPS'd it before installing the shorty.
I'm not sure whether the stock water speedo's typically read higher or lower than actual speed. I was turning the Bravo 1 26P around 4500-4600 RPM. With the shorty I'm turning 4900-4950 RPM From a seat of the pants feel.......The boat fly's now, Mark A stock 26p B1 prop is about the same pitch as a stock 25p Rev 4. We are seeing about the same slip/efficiency. As for a pressure driven Livorsi speedo, if liquid filled and using pito in the drive, they are pretty accurate. At least the one I had in my 280 Velocity and the one a bud had in his 29 Fountain were on the money... |
To quote you.......Better in every respect. No downside whatsoever
Glad to hear. Ken |
Originally Posted by Pat McPherson
(Post 4493393)
My numbers are nearly identical with stock drive and 25p Rev 4. From last Thursday, I saw 71.2mph on my phone GPS @ 4900rpm.
A stock 26p B1 prop is about the same pitch as a stock 25p Rev 4. We are seeing about the same slip/efficiency. As for a pressure driven Livorsi speedo, if liquid filled and using pito in the drive, they are pretty accurate. At least the one I had in my 280 Velocity and the one a bud had in his 29 Fountain were on the money... Mark |
Nice numbers for non ho boat @ altitude!
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Mark, I have a 2004 40th anniversary? That is what I have
Peter |
Is that what you have?
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Originally Posted by Pdm
(Post 4568946)
Is that what you have?
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