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  #1  
Old 05-14-2019, 09:26 PM
Generalist Generalist is offline
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Default 23 twins engine height help

My new 23 with twins arrives in July. Test drive on a demo 23 twins boat had the cavitation plates way buried below the water when up on plane. Motors were set to lowest position from the factory. I think I am going to have mine moved up a hole before I take final delivery to minimize bow rise upon planing and maximize overall performance and efficiency. Anyone have a recent model 23 with twins they have made adjustments on motor height? thanks all
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  #2  
Old 05-15-2019, 11:28 AM
heatme heatme is offline
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hate to piggy back on your post, but i have a 2000 23 Reg with yamaha 300 hpdi on the rear. my 300 is all the way down and thinking of moving engine up 1 mounting hole. anyone with same set up and if so, what hole is your engine mounted....???
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  #3  
Old 05-15-2019, 12:31 PM
BlueChip BlueChip is offline
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Quote:
Originally Posted by heatme View Post
hate to piggy back on your post, but i have a 2000 23 Reg with yamaha 300 hpdi on the rear. my 300 is all the way down and thinking of moving engine up 1 mounting hole. anyone with same set up and if so, what hole is your engine mounted....???
Totally different boat (bracket vs non bracketed)

HeatMe - 100% move it up.
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  #4  
Old 05-15-2019, 06:43 PM
23bullwinkle 23bullwinkle is offline
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I have a 23 classic with an F300. I will be down at the boat tomorrow and let you know where she is set.
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  #5  
Old 05-17-2019, 08:57 AM
heatme heatme is offline
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thanks Bluechip. Engine sits way low but gonna move up 1 hole and see how she does and go from there. also adding a rev4-18 per the folks at Propgods.
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  #6  
Old 05-17-2019, 11:08 AM
23bullwinkle 23bullwinkle is offline
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My sinle F300 is mounted one hole from the top
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  #7  
Old 05-17-2019, 06:02 PM
Jbreeze Jbreeze is offline
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Location: Nassau County, NY
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Quote:
Originally Posted by 23bullwinkle View Post
My sinle F300 is mounted one hole from the top
Can someone explain what the significance of moving the engine up 1 hole plz? I have a 23 classic w a Yami F350 and it came rigged like that from Regulator factory w the top 2 holes on engine bracket. Mine has 2 on each side of engine bracket bolted thru through the transom. What exactly is the right measurement to take other than where the holes in the engine bracket go. I am contemplating doing same but want to understand the engineering, i don't want to mess with perfection as the engine bracket fits snugly on the transom as is. Thx for any input.

Last edited by Jbreeze; 05-17-2019 at 06:08 PM.
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Old 05-17-2019, 06:17 PM
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Big Dinghy Big Dinghy is offline
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It all depends on where your ventilation plate is when you are on a plane. You want it to barely skim the top of the water.
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Old 05-17-2019, 08:45 PM
heatme heatme is offline
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thanks 23Bull and Bluechip. raising engine on monday and new prop on way
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  #10  
Old 05-18-2019, 05:52 AM
Jamevar Jamevar is offline
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When you raise the motor one hole or more the top of the motor bracket is against the
aluminum L and slightly away from the transom. Doesn’t seem right. Is this normal or
should the aluminum L be modified or bracket be shimmed.
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