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The 250/225, based on the 3.3L version of the same block, is 4 lbs lighter than the 300. |
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deck - penske/coosa board is the best choice tank size: 125-130g should be ideal motor size: 250 yamaha 4 stroke - more than enough power hull weight: not sure... |
Thank you you guys are alot of help! I will post some pics as i get the job done.
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You might want to check out what some guys get for performance numbers with 175-225HP outboards, like Bigshrimpin. The lower weight on the transom is a plus for seakeeping. I have to think the mileage is good, too. The 25 foot seacraft seafari only came with 105 gallons of fuel capacity, so you might rethink what 1000lb of fuel would do to the handling of a 23 footer, and the lack of that 1000 lb when the boat is empty.
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With a 1996 Johnson Ocean Runner 225on out 1984 cc we top out at 38kts lightly loaded and cruise at about 4400 rpm doing roughly 25kts. The boat has no t-top and an open transom. We have the 144 gallon tank and dont ever really need that much fuel, but when its full you can really feel it, the boat turns into an absolute tank!
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I have a 77 Scepter with a 250 Suzuki 4s on a 30inch transom .Cruise in the low to mid 30s top end around 45mph. New 110 gal tank gives me plenty of range.Fish from Sandyhook NJ and run to the mudhole,gloryhole and further and burn only 40 to 60 gal. round trip.
Boat has stock deck and I have no problems with self bailing. |
I haven't burned more than 40gallons in a trip yet fishing all day long. To me 80 gallons is a perfect size. The drop down inside the console will fit 4 old school Gott 5 gallon tanks perfectly. That's an extra 20 in a pinch out of the way. If you plan on fishing offshore (Bahamas, the canyons, georges bank, or some distant land) then you might want 100+, but for most folks 80 - 100 is more than enough.
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I've got a '73 23 I'm reworking orig I/o cc that came with two 50 go tanks I had one 100 made and a 2nd 30gl tank made so don't think you can't have two different sized tanks made
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Like a couple of responses so far, I went with two tanks 55 each, pushed them both forward about two feet. Have only used the forward tank, but fish the same waters as Bigshrimpin and like him, have never needed more than 40 gals. Love the way it sits in the water and the way it rides. I moved it forward because I added a minimal flotation bracket.
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