22-2 CCP questions, fuel burn on tiwns and extra fuel capacity.

[Midcap]

Hello All,

   I just bought a 1984 22-2 CCP and I had a few questions that I hope you guys would be able to answer. Does any of you folks run twins? What fuel burn #'s are you seeing. Also, does any one know how much more below deck fuel you can add? My front floor needs to be replaced so I was going to add another tank while it was out.

[Capt. Bob]

I ran a single on my 84 so no help there.

Here is what the forward area of the hull has to offer space wise.

http://classicaquasport.com/smf/index.php?topic=9506.0

I'd guess you could frame in a tank close to or greater in quantity to the original (85 gal.) if you wanted all that weight forward. There is some room on the outside of the stringers aft but you would probably need a custom build tank to fit in those slots. They would probably balance the hull better than the forward tank though.

Not much help, just thoughts.

[Midcap]

I ran a single on my 84 so no help there.

Here is what the forward area of the hull has to offer space wise.

http://classicaquasport.com/smf/index.php?topic=9506.0

I'd guess you could frame in a tank close to or greater in quantity to the original (85 gal.) if you wanted all that weight forward. There is some room on the outside of the stringers aft but you would probably need a custom build tank to fit in those slots. They would probably balance the hull better than the forward tank though.

Not much help, just thoughts.

thanks for the link to the pics. It looks like that I would have more than enough space for another 40 gallons or so right forward of the 85 gallon tank. Only issue I can see is I may have to custom make flush access hatches so the coffin box sits flush.

[Capt. Bob]

IIRC some of the larger models (245/250) did away with the coffin and had hatches for below deck storage at that point.

Personally, I liked the coffin but yes, you would need to construct a flush hatch if you wish to keep the it. Sounds very doable since you are replacing the deck in that area. If you do go that route, please post pics of your project.
Should be interesting and helpful.

Good luck and thanks.

[fitz73222]

Hi Midcap,
I have a 12 degree 22-2 1973, so Im a little lighter and a little less deadrise but running twin 115 Mercs, I cruise at 2.5 mpg. 3500 rpm @29 mph. I have a 71 gallon tank which is plenty for what I do.   

[Midcap]

IIRC some of the larger models (245/250) did away with the coffin and had hatches for below deck storage at that point.

Personally, I liked the coffin but yes, you would need to construct a flush hatch if you wish to keep the it. Sounds very doable since you are replacing the deck in that area. If you do go that route, please post pics of your project.
Should be interesting and helpful.

Good luck and thanks.

The coffin box is actually one of the things I like most about the hull. So, I'll just have to make the hatch which wont be an issue.

[Midcap]

Hi Midcap,
I have a 12 degree 22-2 1973, so Im a little lighter and a little less deadrise but running twin 115 Mercs, I cruise at 2.5 mpg. 3500 rpm @29 mph. I have a 71 gallon tank which is plenty for what I do.   

Thanks for the info. Those are carbed 115's?

I plan on closing in the transom and putting new 4 stroke or Direct injected 2 stroke 115's on the bracket. If you are getting 2.5, then I should be at least 2.5 gph with the new tech at cruise.

Thanks!

[fitz73222]

These are carb'd in-line 4 cylinder loopers. You should do better than these with todays technology I'm sure.

[Midcap]

These are carb'd in-line 4 cylinder loopers. You should do better than these with todays technology I'm sure.

good to know. I should be closer to 3 mpg at cruise. Which if that holds true, I will have more range than needed with the extra fuel, which is a good thing.

[fitz73222]

That should be a nice rig with twin "new tech" 115's. And should something happen to one of them, I can run 31 mph WOT on one of them @4900 rpm. Cruise at 24 mph at 3800 rpm! So you could actually get home and get on  plane with one of those.

[Midcap]

That should be a nice rig with twin "new tech" 115's. And should something happen to one of them, I can run 31 mph WOT on one of them @4900 rpm. Cruise at 24 mph at 3800 rpm! So you could actually get home and get on  plane with one of those.

that's what I was hoping that I could plane off with a single engine. I will keep spare props with a lower pitch just in case. I wanted to go 150hp's but I feel the extra weight and cost wasn't justifiable.

[jdupree]

I would go with those twin 115's for your hull.  You would need a pretty hefty four stroke to push that hull.  I am sure that you have the original deck scupper setup like I once had, and the weight of a big four stroke might put the scuppers under water.

I would guess that you would need a 200 four stroke to push that hull??  I have often wondered how a 200 four stroke would push that hull???

[fitz73222]

With respect to the deck drains on your boat, I read a very clever idea about how to midigate it to a certain degree that made perfect sense to me assuming your drains are still above water at rest and that was to criss cross the drain hoses from the deck to the outboard gunnel drains. This allows for someone standing at the stern, say on the port side to have the port scupper go underwater but water won't come in because the list raises the starboard scupper above the water which the port deck drain is connected to it. So it allows for extra weight on one side that is typical like when fighting a fish to not allow the water to enter the deck on the heavy side. The boat will drain normally when at level attitude while running or at rest. I thought this was brilliant.

[Midcap]

 

I would go with those twin 115's for your hull.  You would need a pretty hefty four stroke to push that hull.  I am sure that you have the original deck scupper setup like I once had, and the weight of a big four stroke might put the scuppers under water.

I would guess that you would need a 200 four stroke to push that hull??  I have often wondered how a 200 four stroke would push that hull???

The twin 115 route makes the most sense. Right now I'm going to run a single 225 evinride direct injected 2 stroke. Then after this season, I'll do the twin conversion.

[Midcap]

With respect to the deck drains on your boat, I read a very clever idea about how to midigate it to a certain degree that made perfect sense to me assuming your drains are still above water at rest and that was to criss cross the drain hoses from the deck to the outboard gunnel drains. This allows for someone standing at the stern, say on the port side to have the port scupper go underwater but water won't come in because the list raises the starboard scupper above the water which the port deck drain is connected to it. So it allows for extra weight on one side that is typical like when fighting a fish to not allow the water to enter the deck on the heavy side. The boat will drain normally when at level attitude while running or at rest. I thought this was brilliant.

That sounds like a great idea