Hull extension
 

Has a hull extension been done on a V20 before? How would adding three feet affect the handling? Opinions?

Jason, this isn't on of our V's BUT this is an EPIC thread.... GOBS AND GOBS of knowledge here..... Get a COMFY chair and a few sodas and settle in for a LOOOOONG night or several nights.
http://forums.iboats.com/boat-restor...cs-234392.html

I just read the first page and learned a ton! I would only add two feet if I did do it. 22 is a lucky number for me, my bday is on the 22nd of July. Thanks for the link Smoke, I am going to spend some time and read it. Just based on rough guessing a two foot hull extension would add around 500lbs of flotation. This is really alot to think on. Lots of modification but I cannot think of a better time or better hull to modify.

a friend of mine that used to make glass work boats(Diamond Boats) would stretch hulls all the time, he had the mold for the 27 Aquasport and would make a 30 out of it with no problem, he had the mold so it was easier for him, but on ones that he didn't have the mold, he would use the back 4 feet of the hull as the plug, make a mold off of it, use the mold to make the extension and section it in.

I saw Dale Earnhardt Sr.'s boat at Palmer Johnson having the 30 feet added to it, he had to make his bigger than Rusty Wallace's

Wow...that's something I've always wanted to do w/a V20...and while underway, beef it up enough to handle 250 HP....I hope you'll do this and post pics along the way and when finished...wet tests and all...my vote?...GO FOR IT...if I lived closer, I'd come help free!

Just a thought...these boats, to me have forever seemed butt-heavy...occurred to me, you might wanna leave the fuel tank in the front as you extent aft to help offset some of the weight on the stern...especially if yer gonna go up in HP...

Thanks for the encouragement Smoke, Spare, and Reel. It seems building the mold and getting it lined up is the hardest part. If I do the hull extension I will still do the outrigger bracket which takes some stress of the extension. Good thinking on the fuel tank, Reel. Do yall think additional stringers may be needed? Such a modification will have to be done using epoxy for the most strength. I will need help though. Another question, is regarding title. Will I have a 2013 Wellcraft V22?

only if you decide to title it as home built... then it would be a 2013 or 2014 JCPF v22

Stringer would have to be extended to tie in with the transom, you can sister them in place to the existing stringers. Epoxy is good, but not neccesary

She is getting new stringers so that is covered. I plan to use epoxy on the extension and bracket just for my own piece of mind. Still undecided on the extension. At this point I do not care how long it takes I just want to do it right. The hull bottom is 3/8 - 1/2" thick right at where the cuddy starts. Is it the same all the way?

you know, the easiest way would be to find a stripped out derelict v20 hull and graft the two together, look around, you could probably fine one. Check with Lanier Marine Salvage. If you find an I/O boat to cut the back off, it would be an easy bracket job from there

Spare I will keep a look out. But will this be as strong as if I laid new glass for the two foot filler? Its a long shot but I will check the 18 Fisherman I have at the house. I think it does not have the deadrise ? of a V20 though.

If I do decide to register it home built, do I need to go thru Coast Guard? And who determines max HP? I need a 300 HP rating at least. Also what about the HIN? Does it need to disappear?

You probably don't wanna do home built BUT if you do it will be through your state title office... you will turn in receipts and title/hin number of parts boats used and you will be issued a new number and title.... hp rating is determined by whichever is more restrictive a formula (length beam freeboard deadrise hull style etc) from the coast guard site and by the builder (you)

Jason I have an old Hull Stretcher in the garage, very easy to use. I'll sell it for $500. Just MoneyPak me the money:sly:

its on!
 

Sorry I dont have the cash. I propose a trade. I will trade it for my 16 ton hydraulic nail unbender, a meglinating variable intensity multifunction power tool, 18 volt cordless hammer, and a 7 function multitool (has meat thermometer, gaydar, and a paternity test). :haha: and i might throw in a bucket of propwash too.

with some quick reading it looks like rated hull capacities are regulated by law on hulls UNDER 20' .... if that's true then u are clear to go ... ehem.... buck wild!

:beer: Fantastic!!!! Trade works well!!!! Hold on while I put my Bargainin Britches on........ I'll do it for the MVIMP tool(mine has a broke torque rotation awl....), hmm...I like the multitool though I own a Garden Center so I have the best Gaydar money can buy.......but the paternity test could come in handy.......the hammer would end up on Ebay. Tell you what....throw in a generator for the nailbender and we'll call it a deal!!!

Hmmm. You drive a hard bargain. I have a smoke and fume generator that will work but I use it to keep mosquitos away. How about a combination extension cord water hose? It would be perfect for your garden center!

Your right. And further more, the Coast Guard ratings are mostly for weight not speed. So what happens if I hang a 200 Honda on a V20? That thing weighs like a 300 2 stroke.
My goal is to have twin 2.5L Mercs. I will probably never see WOT but I will have the advantages of twins. I believe with an extension and a bracket I will get approved for 300Hp. The bracket is built into the boat so strength is not an issue.

Didn't read if you already have trim tabs, but if you don't - adding them will make a big, make that a HUGE difference in the ride !!!

I speculate that without tabs, making the boat longer will still require tabs to get the best ride.

Yep I got a set of hydraulic tabs.

I think a donor hull might not be the best way to extend a hull. Hull stretcher 100% easier.

You are right Ridge. Which reminds me. My meglinating variable intesity multifunction power tool is the LIMITED EDITION! The bearings are lubricated by wax from Chuck Norris' ears. GUARANTEED FOREVER!

Now I KNOW you're full of chit.... Wax would be far too afraid to ever form in Chuck Norris' ears..... Ur sellin unicorns!!!!!

Build you a rack to put your boat in just like the thread. Then screw melamine or a F.R.P to the outside the boat then spray a pva release wax. Build the thickness up with heavy woven and csm alternating layers. Then return the cloth progressively about 3 or 4 foot into the hull on both sides of the patch. Let it kick then remove your out mold boards then progressively do the same layup as you did the inside. I would think that would git er done!!!! Add new stringers. Sounds simple...... But that's a lot of work!!

Boat lengthener .....extender..... " how to "

1. Chain saw the boat across the marked line approx 2' ahead of the stern.
Just cut the darn boat in half there.

2. Cut 5' sections for the floor, and two sides.
A. Slather on a complete coating of 5200.
B. Fit these sections into place, with 1' overlap on each side.
C. Then drill holes every 6" and run stainless bolts with washers, and more 5200.
Run em' right through the hull, don't be bashful about it.

3. Tighten it all up, then coat the outer and inner hull with epoxy and gel coat.

4. Let dry, then wet sand and polish if that's important to you.

Then take your new V24 out on the ocean and have fun.

Total time for the job - figure 4 hours.

You didn't mention any duct tape? Or a piece of foil off a chewing gum wrapper. Both mentioned must must have some structual integrity to build.

Come on man - this is the " get er done " instructional.

Cut, insert, glue, bolt, coat.

Two hour job if you're in a hurry. Four if you want to be fussy about it.

Yall are hilarious. Kracker no jokes its a ton of work. Your idea would have the most strength as it has layers built up on the hull on inside and outside. That would require flipping the V. Anybody know what just a V hull weighs? There are no scales nearby. Unless I go buy five bathroom scales and weigh the trailer with and without the boat.

I believe my 20CC is 1800lbs, hull only....

Here is what wellcraft lists it at 1,920# also 60 gal gas, and 200 hp max power http://www.wellcraftv20.com/gallery/cat_1983/A4

This is what you guys are looking for I am sure!! here is what wellcraft did in 1983 :

http://www.wellcraftv20.com/gallery/cat_1983/A7

Thanks MJ and ssiredfish. Now I wonder if my current trailer can handle all the extra weight if I extend the hull. It needs new springs right now, maybe I can get higher rated springs and axles? I can only go another foot forward with the winch post and I still have to figure in possibly 800lbs hanging 30" of the transom. While we are on the weight subject how much do yall think the actual hull itself no cap weighs?

12-15

Wellcraft says a center console is 1750, cuddy 1920, thats with no motor or gas or anything.

Ok so the cap is around 500 I think. So hull weight is 14-15. Smoke was right. I really do not have any help on this project, so I want to make sure I have the mechanical means to flip the hull if need be. I do not want to get in over my head on this. The hardest part i see is the actual mold itself.

No need to flip hull.... Mold is just a few pieces of board screwed to outside of the separated halves.... Touch up gell coat work if needed can be done from underneath with a paintbrush. Sand smooth after.

This is a mod. that appears to have crossed a lot of our minds. How do you guys think a V23-24 would compare to a seacraft/albemarle in same length as far as ride,dryness and overall performance? By the way are there any of the original V23's around?

I'm thinking it would ride similar to the 21' in that trim tabs would be important.
Longer boat means spanning the waves better, ultimately means less pitching but this is just a couple of feet longer. So, " the hull is the hull " and would still likely pound in a head sea without trim tabs.

Our albemarle is 7200 pound dry weight with a 24 degree deadrise. I hate to say it but you can't compare the 2 hulls its like comparing apples to oranges. Even if the v was 24 foot long.

Come to think of it, the 250 Sportsman was a little heavy. But it would blast thru waves that would cause you to throttle back on a V. I wonder if that was weight or length? Or both? This concerns me because I plan on 75 mile trips to the oil rigs. Not to mention runs to the Edge, Steps, and the Nipple ranging from 25-45 miles offshore. I like to fish SKA Tourneys so speed in rough crap is important.