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Author Topic: Engine flotation bracket comes with problems...  (Read 1052 times)

July 28, 2008, 09:53:26 PM
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CKP

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Engine flotation bracket comes with problems...
« on: July 28, 2008, 09:53:26 PM »
ok here goes...

went with dual 140 fourstrokes and Aluminum Flotation bracket on the closed transom 246CCP.  Moved the new center console 6 inches forward. I have no coffin box in the front and just that small hatch.


Did a few sea trials and the bow rode high and engines were positioned on the bottom holes.. re-rigged and raised the engines to the highest engine bolt pattern and that diminshed the amazing rooster tails.  Tucked the engines in and still to much high bow. The bow rides at 10 TO 15 degrees.


In Texas we like to push the nose down enough to ride just on top the waves heading out.

On my fourth sea trial I placed 180 lbs of sandbags in the forward Bow compartmentand the boat rode nice. Problem was my engines had to work a little bit harder 4500 rpm versus the normal 3500 rpm.

When you head back after a days fishing in a following sea if your bow is heavy one could have a sporty situation by spearing right thru the back of the next wave and potentially swap the boat. Just unnaceptable.

Here are my options or any you might recommend:

1. Trim Tabs tucked in but not very fuel efficient. Tuck them in heading out and plane them out riding back in on a following sea.
2. I want to glass in deep front deck fishboxes for storage..could balance the center of gravity issue.
3. Run Bow high always..too slow going out in the mornings.
4. Load up with ice and keep it up front.
5. ?



July 29, 2008, 12:10:36 AM
Reply #1

Marcq

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« Reply #1 on: July 29, 2008, 12:10:36 AM »
Wow man, you have a lot of weight there, and on a bracket !!

Marc..
1979 170 Aquasport 70hp Evinrude

July 29, 2008, 08:28:33 AM
Reply #2

LilRichard

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« Reply #2 on: July 29, 2008, 08:28:33 AM »
That boat *should* be able to handle those motors... what is the setback on the bracket?

Do you know if your stringers are soaked?  That could be adding some extra weight.  

I would add some tabs, only because I like having tabs on any boat and it cannot hurt.  I would stay away from adding more weight if possible...

July 29, 2008, 09:54:31 AM
Reply #3

Mad Dog

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« Reply #3 on: July 29, 2008, 09:54:31 AM »
Any way you can move the fuel tank forward?  More fuel on the way out less on the way home.  In my rebuild I closed the transom and will add 30" of bracket for a single.  I moved my fuel tank forward about 18" and moved the the console forward about 6".  I'm not sure about the balance yet but I should have dry scuppers.  

I agree with LR, trim tabs are good to have no matter what.

MD  :wink:

July 29, 2008, 04:32:52 PM
Reply #4

GoneFission

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« Reply #4 on: July 29, 2008, 04:32:52 PM »
Lotta weight way back...

Where are your batteries?  Under the console?  It would be difficult to move the gas tank, but moving the batteries up could help.
Cap'n John
1980 22-2 CCP
Mercury 200 Optimax 
ASPA0345M80I
"Gone Fission"
ClassicAquasport Member #209


July 29, 2008, 07:30:23 PM
Reply #5

DOCREED

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« Reply #5 on: July 29, 2008, 07:30:23 PM »
Trim tabs do the trick on my 89 250CCP.
Same setup as your boat basically.


89 250 CCP
full transom
Twin Merc 150\'s......thirsty?  YES they are.


July 30, 2008, 09:25:56 AM
Reply #6

John Jones

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« Reply #6 on: July 30, 2008, 09:25:56 AM »
Trim tabs.  I'll probably get flamed for saying this but a small amount of tab down on my 22-2 CCP actually DECREASES fuel consumption, increases speed at the same throttle setting, as well as improving the ride.  (I'll gladly prove this to anyone that wants to buy the gas ;) )  I have a fuel flow meter and flow will drop 1-2 gph with the right amount of tab.  Yes, too much tab will increase consumption and decrease speed.
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