Drive spacer or not?
#11
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Joined: Jan 2009
Posts: 684
Likes: 177
From: Finland
Have done some testing
Hydro p5x 24", good bow lift, feels smooth, planes nicely, still very little ability to trim at lower speeds, porpoising only at full throttle.
3000rpm, 35mph, 23% slip
3500rpm, 42mph, 21% slip
4500rpm, 60mph, 12% slip
4800rpm, 64mph, 12% slip
Bravo 24", good bow lift at lower speeds, planes nicely, feels loose, can feel some vibration at docking speeds, almost zero ability to trim at any speed. Scary at full throttle, at 5000rpm it looses bite complitely, maybe too much stern lift, dont know.
3000rpm, 32mph, 27% slip
3500rpm, 42mph, 18% slip
4000rpm, 48mph, 18% slip
5000rpm, 60mph, 18% slip
Next test with powertech ofx 24" 4blade.
Hydro p5x 24", good bow lift, feels smooth, planes nicely, still very little ability to trim at lower speeds, porpoising only at full throttle.
3000rpm, 35mph, 23% slip
3500rpm, 42mph, 21% slip
4500rpm, 60mph, 12% slip
4800rpm, 64mph, 12% slip
Bravo 24", good bow lift at lower speeds, planes nicely, feels loose, can feel some vibration at docking speeds, almost zero ability to trim at any speed. Scary at full throttle, at 5000rpm it looses bite complitely, maybe too much stern lift, dont know.
3000rpm, 32mph, 27% slip
3500rpm, 42mph, 18% slip
4000rpm, 48mph, 18% slip
5000rpm, 60mph, 18% slip
Next test with powertech ofx 24" 4blade.
#12
Have done some testing
Hydro p5x 24", good bow lift, feels smooth, planes nicely, still very little ability to trim at lower speeds, porpoising only at full throttle.
3000rpm, 35mph, 23% slip
3500rpm, 42mph, 21% slip
4500rpm, 60mph, 12% slip
4800rpm, 64mph, 12% slip
Bravo 24", good bow lift at lower speeds, planes nicely, feels loose, can feel some vibration at docking speeds, almost zero ability to trim at any speed. Scary at full throttle, at 5000rpm it looses bite complitely, maybe too much stern lift, dont know.
3000rpm, 32mph, 27% slip
3500rpm, 42mph, 18% slip
4000rpm, 48mph, 18% slip
5000rpm, 60mph, 18% slip
Next test with powertech ofx 24" 4blade.
Hydro p5x 24", good bow lift, feels smooth, planes nicely, still very little ability to trim at lower speeds, porpoising only at full throttle.
3000rpm, 35mph, 23% slip
3500rpm, 42mph, 21% slip
4500rpm, 60mph, 12% slip
4800rpm, 64mph, 12% slip
Bravo 24", good bow lift at lower speeds, planes nicely, feels loose, can feel some vibration at docking speeds, almost zero ability to trim at any speed. Scary at full throttle, at 5000rpm it looses bite complitely, maybe too much stern lift, dont know.
3000rpm, 32mph, 27% slip
3500rpm, 42mph, 18% slip
4000rpm, 48mph, 18% slip
5000rpm, 60mph, 18% slip
Next test with powertech ofx 24" 4blade.
No offense meant at all... but you're a bit ignorant with your shared methodology. You may find benefit to including someone who is well versed in regard to setting up a boat similar to yours. Again, please don't take this the wrong way.... I am more than ignorant in many areas.... finding someone who isn't is always a good idea. *Generally, if you don't need trim and the boat is running bow proud at zero or negative trim, you need a spacer. Not sure about your application.
#13
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Joined: Jan 2009
Posts: 684
Likes: 177
From: Finland
No offense meant at all... but you're a bit ignorant with your shared methodology. You may find benefit to including someone who is well versed in regard to setting up a boat similar to yours. Again, please don't take this the wrong way.... I am more than ignorant in many areas.... finding someone who isn't is always a good idea. *Generally, if you don't need trim and the boat is running bow proud at zero or negative trim, you need a spacer. Not sure about your application.
#14
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Joined: Jan 2009
Posts: 684
Likes: 177
From: Finland
#15
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Joined: Jan 2009
Posts: 684
Likes: 177
From: Finland
Last edited by JaniH; 09-23-2022 at 06:03 AM.
#17
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Joined: Jan 2009
Posts: 684
Likes: 177
From: Finland
The bottom is blueprinted complitely, there was a sligth hook but not anymore. No trim tabs.





