Third Child 29 Fountain
08-10-2022, 09:31 AM
#81
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Many people online state that these boats run 75-80 MPH from the factory with this prop, Some switch to a 26P to get more midrange and plane speed, but they still are able to get 74-75.
08-10-2022, 09:38 AM
#82
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The boat runs great and I have no issues with it, but when people keep telling me it should go 10mph faster is makes me think there is potentially something wrong with it is all and it has me curious.
08-10-2022, 10:37 AM
#83
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Im not drinkin the 80 mph kool-aid.....
.......Ill see if I have the 555 plug for my scanner, what does the obd connection look like ?
.......Ill see if I have the 555 plug for my scanner, what does the obd connection look like ?
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cheech (08-10-2022)
08-10-2022, 11:12 AM
#84
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08-10-2022, 11:19 AM
#85
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Ive got the 555 adapter for my scanner, we can scan if you want to pull it to my place, run it on the hose and check things
08-10-2022, 12:40 PM
#86
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Prop is a 28P Bravo
I am able to hit about 4900-5000 without trimming the drive, once I start trimming I have seen 5200 on the gauge.
Its a Bravo XR so should be 1.50 ratio, I have not taken anything apart to confirm for sure.
I typically get on plane and without any drive trim get to 60-62 MPH. Then I will start trimming until I start shaving off speed and cant seem to get anything over 68.
I am able to hit about 4900-5000 without trimming the drive, once I start trimming I have seen 5200 on the gauge.
Its a Bravo XR so should be 1.50 ratio, I have not taken anything apart to confirm for sure.
I typically get on plane and without any drive trim get to 60-62 MPH. Then I will start trimming until I start shaving off speed and cant seem to get anything over 68.
Try a good known prop would be my first try. You never know what people do to props.
Had a buddy that bought a boat and it was a POS to get on plane, we checked the props that came with it and someone had cut diameter down for whatever reason.
08-10-2022, 12:56 PM
#87
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That is a lot of slip even at 4900 its over 21%.
Try a good known prop would be my first try. You never know what people do to props.
Had a buddy that bought a boat and it was a POS to get on plane, we checked the props that came with it and someone had cut diameter down for whatever reason.
Try a good known prop would be my first try. You never know what people do to props.
Had a buddy that bought a boat and it was a POS to get on plane, we checked the props that came with it and someone had cut diameter down for whatever reason.
08-10-2022, 02:14 PM
#88
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My friend had a 1998 29’ fountain with a single 500hp. The boat ran best with a 24 lh hydromotive. We routinely saw 74gps
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Padraig (08-10-2022)
08-10-2022, 03:01 PM
#90
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Perfect, This is getting me excited. I know this prop has a small ding in it, but nothing crazy. Ill test the 27 since it is what I have access to and go from there.
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Wildman_grafix (08-11-2022)
