1983 23ft seacraft cc Questions????

[Bushwacker]

Originally Posted by mrobertson

. . . A 150 gallon tank isn't going to weigh that much more than a 100 gallon tank to make a difference, empty. Just because you have 150 doesnt mean you have to fill it. Better to have the capacity and not need it, that need it and not have it . . .

Maybe consider 2 tanks. A big tank, but not kept full, will tend to accumulate water through condensation, which could be a problem if you run e-10 gas. With 2 tanks, you could keep the forward tank full and only put gas in the second tank when you need the extra range.

[Bushwacker]

Originally Posted by PharmD2B31

Here are the comparison specs.

Mercury 350 SCI ..... 667 lbs
Mercury 300 Pro ..... 20" ... 635 lbs (website notated lightest model, so Im assuming the 20" shaft)
Mercury Verado 300 ..... 20"...635 lbs (website notated lightest model, so Im assuming the 20" shaft)
Yamaha F350..... 25".. 804 lbs......30".. 822 lbs
Yamaha F300..... 25".. 562 lbs......30".. 571 lbs
Suzuki 300 ...... 25".. 604 lbs ..... 30" .. 615 lbs.

The Yamaha IS actually lighter than the Suzuki.

If weight is a consideration, don't forget about the E-Tec! It's lighter than ANY of the listed motors, at 528/534 lbs for the 25"/30" 3.4L 300!

The 250/225, based on the 3.3L version of the same block, is 4 lbs lighter than the 300.

[pelican]

Originally Posted by boatless23

Hi i have some Questions about my project boat it is a 1983 23ft seacraft I have taken the gas tank out and all the foam cleaned out the bilge and installed a bulkhead then used bildge coat on the inside of the hull. Ready to start rebuilding!

1)what size gas tank should i get it came with a 144 gal ?Im thinking a 100 gal tank.

2)what size outboard motor? new one. Im thinking a 300 four stroke suzuki.

3)How much does my hull weigh?

4)I am replacing the deck any suggestions how it should be done and if i should raise it up a few inches?

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...

[boatless23]

Thank you you guys are alot of help! I will post some pics as i get the job done.

[FishStretcher]

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.

[Boatboy6]

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!

[riptide]

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.

[Bigshrimpin]

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.

[wattaway2]

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

[Cheg]

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.