I/O to Outboard: 22ft. Sylvan offshore from 3.0liter OMC to Suzuki DF140

[WeldZilla]

Re: 22ft. Sylvan offshore from 3.0liter OMC to Suzuk iDF140

Re: 22ft. Sylvan offshore from 3.0liter OMC to Suzuk iDF140

Thanks again, you know I should say that this Suzuki DF140 is the extra long shaft. Yes its a 25 inch leg which allowed to set the bracket that much higher. As you can see by the pics its about 6 inches out of the water had it been shorter when taking off the lip under the platform would have actually been dragging in the water. Once on plane that would have been alright but at low speeds it would be a water churner. The other benefit to the higher bracket and longer leg on the engine is that it allows engine to be tilted completely out of the water. This is what I wanted when it spends a few days here and there moored at the bay. It won't be soaking in the salt water

WZ

 

[jasoutside]

Re: 22ft. Sylvan offshore from 3.0liter OMC to Suzuk iDF140

Re: 22ft. Sylvan offshore from 3.0liter OMC to Suzuk iDF140

Hey zilla, I was talking with a buddy about your bracket, and I'm just wondering...

I know you ran alum. Any reason a fella wouldn't want to build out of stainless instead? Weight? Cost?

Just chewing the fat is all

 

[WeldZilla]

Re: 22ft. Sylvan offshore from 3.0liter OMC to Suzuk iDF140

Re: 22ft. Sylvan offshore from 3.0liter OMC to Suzuk iDF140

Stainless would have been waaaaaay too heavy. Aluminum is light, strong, not too expensive.

Aluminum is the only way to go. 5052 aluminum is also very resistant to the effects of salt water.

I am going to add some zincs to my project next. As to the question no problem here with any questions!

I do metal for a living.

WZ

 

[jasoutside]

Re: 22ft. Sylvan offshore from 3.0liter OMC to Suzuk iDF140

Re: 22ft. Sylvan offshore from 3.0liter OMC to Suzuk iDF140

I do metal for a living.

WZ

I figured as much, that is why I asked Your handle (username) tipped me off on that

 

[WeldZilla]

Re: 22ft. Sylvan offshore from 3.0liter OMC to Suzuk iDF140

Re: 22ft. Sylvan offshore from 3.0liter OMC to Suzuk iDF140

I did a little figuring. My project weighs in at approximately 122 pounds. the same project made from stainless steel would have come in at around 370 pounds.

a piece of stainless 12in x 12in. x 1/8 in. thick, a square foot. weighs right at 5.04 pounds

The same size piece of 5052 marine grade aluminum weighs in at 1.746 pounds

That helped to make aluminum the choice for my project.

Here is a picture of the stern of my boat the day I bought it..

WZ

 

[Teamster]

Re: 22ft. Sylvan offshore from 3.0liter OMC to Suzuk iDF140

Re: 22ft. Sylvan offshore from 3.0liter OMC to Suzuk iDF140

I'm not sure, But I would think stainless would prone to cracking whereas the aluminum should sort of flex a bit to avoid that,..

Or am I wrong in that thinking???

 

[oops!]

Re: 22ft. Sylvan offshore from 3.0liter OMC to Suzuk iDF140

Re: 22ft. Sylvan offshore from 3.0liter OMC to Suzuk iDF140

hi zilla.......congrats on the successful conversion.....
and it looks like you do great work....

about the boat......how does it handle?....are there any major differences from the way it was before?

the reason im asking is that most after most conversions are done, the owners rarely like the results. your boat seems successful. im wondering if the shaft length is a factor.

 

[jasoutside]

Re: 22ft. Sylvan offshore from 3.0liter OMC to Suzuk iDF140

Re: 22ft. Sylvan offshore from 3.0liter OMC to Suzuk iDF140

I did a little figuring. My project weighs in at approximately 122 pounds. the same project made from stainless steel would have come in at around 370 pounds.

I knew alum would be a lot lighter but I didn't know it would be quite that much. Triple the weight, wow.

 

[Sprky]

Your doing it all wrong!

Your doing it all wrong!

Lets see.............

Same Hp, Planes faster, Planes at a lower speed, most likely better top end and better fuel consumption, more usefull space.

Another failed conversion.....

I Justs love it when siht don't work.......Nice job Zilla!

 

[WeldZilla]

Re: Your doing it all wrong!

Re: Your doing it all wrong!

Another failed conversion.....

I Justs love it when siht don't work.......!

Thanks I appreciate it!! Hey the one crucial element that made this workout other than my skill!!

OK the real key is the EXTRA long shaft on the Suzuki DF140

(So Sweet) and make no mistake its light weight helps too.

If you look at the pics I posted, even though I had to shrink them. Look at the pic of the original boat save it to your computer. Zoom in on the Starboard stern Notice the rivet about 6 inches out of the water. Then count the rivets around on the Stbd side down from that rivet. The 4th one is just in the water then go to the pics I took Sunday save and zoom you will note the 4th rivet is now out of the water about 1 inch. that is the result of the 200 pound weight reduction in the stern of the boat. The new motor and bracket come in at about 200 pounds light that the inboard/outboard. The boat went from a 140 hp IO to a 140 hp OB and the top speed went from 30 to 40! I hit redline so fast that it is crazy. I am going to go to a 14 x 22 stainless not because I want to run 47 but I would like to cruise from 27 to 32 a lot more economically.
I will try to get to a nearby lake this week and and have the wife video me from the shore. I will do some flyby's and some hard cornering and hey if its real nice maybe even a couple barrel rolls!! Then I will get them posted up and linked so all can see them.. I am in the process of building an arch for radar crab davit GPS antenna and maybe some rocket launchers I will post those pics here as I go

Again thanks for all the interest in this project.

Really this is for anyone who don't like this conversion

WZ

 

[ezmobee]

Re: Your doing it all wrong!

Re: Your doing it all wrong!

Video will be cool.

 

[GLG fishing]

Re: Your doing it all wrong!

Re: Your doing it all wrong!

Interested in how your boat is a the dock now that you have done the conversion. Do you find that you have as much control in reverse as you did with the O/D. Not sure if you do any trolling but if you do is there any changes that you have noticed? Does it track better or worse than before?
GLG

 

[WeldZilla]

Re: Your doing it all wrong!

Re: Your doing it all wrong!

You know that is a good question and yes it is more responsive to steering input from either direction. And it tracks better than ever. I can point it and let go of the wheel and it goes perfect till I turn the wheel again.
There is not one thing about this project that was not an improvement on my boat. I got to tell you it never crossed my mind that this would not be a total success. I am glad I did not know that so many have talked it, tried it and results were not so good. It might have made me second guess myself. I am here to tell you it can work perfectly. I will say I have to wonder if the results can be as good with a glass boat simply do to the more overall weight.
I would have to do some figuring. With the right motor confiration you would be losing weight overall so it should work out. But again I think weight is the key to my success. By keeping the overall weight a full 200 pounds less I think I pretty much guarenteed my success. It also gave me enough weight loss to build in my fish boxes and cooler into the stern of the boat and still remain light. I will keep posting as I finish this project this winter

 

[Sprky]

Re: Your doing it all wrong!

Re: Your doing it all wrong!

I have seen more than a handfull of conversions, they all were an improvement of one sort or another.

I have even seen conversions that looked like they were done with a chainsaw and a pair of vise-grips and still worked better than the origional version.

I am sure there are failures out there but I bet you gotta work hard to be one of those failures.

 

[HotRod9mm]

Re: Your doing it all wrong!

Re: Your doing it all wrong!

Very Nicely done W.Zilla. Was thinking of building an extension for my newly acquired 220v before
I saw this thread and started reading your results. This just might be the ticket for me also even
though mine is already OB.

 

[WeldZilla]

Re: Your doing it all wrong!

Re: Your doing it all wrong!

Building an extension may well be a good idea. you don't have to go the 29in. offset I did. But if you do I would advise going with the extra-long shaft engine. Why don't you start a thread with some pics so your idea could be better visualized

WZ

 

[oops!]

Re: Your doing it all wrong!

Re: Your doing it all wrong!

You know that is a good question and yes it is more responsive to steering input from either direction. And it tracks better than ever. I can point it and let go of the wheel and it goes perfect till I turn the wheel again.
There is not one thing about this project that was not an improvement on my boat. I got to tell you it never crossed my mind that this would not be a total success. I am glad I did not know that so many have talked it, tried it and results were not so good. It might have made me second guess myself. I am here to tell you it can work perfectly. I will say I have to wonder if the results can be as good with a glass boat simply do to the more overall weight.
I would have to do some figuring. With the right motor confiration you would be losing weight overall so it should work out. But again I think weight is the key to my success. By keeping the overall weight a full 200 pounds less I think I pretty much guarenteed my success. It also gave me enough weight loss to build in my fish boxes and cooler into the stern of the boat and still remain light. I will keep posting as I finish this project this winter

zilla........again......i have seen a ton of these things (conversions, mostly glass boats) and the owner never really liked the results.....almost never......i attribute the success to your skill....and possibly the long shaft......but mostly your skill.......

again ......good job bud......congrats !

 

[WeldZilla]

Re: Your doing it all wrong!

Re: Your doing it all wrong!

Well thankyou oops I appreciate your high praise. I have more to do to complete the overall project but this first phase has been a great success.
I plan on shooting more video hoping to capture not only quick launches but some maneuvers as well. I Started on what will eventually be my radar arch / crab davit / rocket launchers just today in my shop. I will post up that journey as well. I still need to buy a 4 x 8 sheet of 3/16 aluminum for my stern project store and a couple coolers, oh and maybe a little reinforcing strength thrown in for the transom at the same time not so much that I think it is needed but it will occur naturally as a consequence of the storage I am building.
Say oops I see you are just up to the north of me. I am in Vancouver U.S.A.

Stay tuned.....

WZ

 

[oops!]

Re: Your doing it all wrong!

Re: Your doing it all wrong!

Well thankyou oops I appreciate your high praise. I have more to do to complete the overall project but this first phase has been a great success.
I plan on shooting more video hoping to capture not only quick launches but some maneuvers as well. I Started on what will eventually be my radar arch / crab davit / rocket launchers just today in my shop. I will post up that journey as well. I still need to buy a 4 x 8 sheet of 3/16 aluminum for my stern project store and a couple coolers, oh and maybe a little reinforcing strength thrown in for the transom at the same time not so much that I think it is needed but it will occur naturally as a consequence of the storage I am building.
Say oops I see you are just up to the north of me. I am in Vancouver U.S.A.

Stay tuned.....

WZ

when we get an iboats north get togeather up here.......i expect to see that tinny on our water bud.......we will race....lol

 

[WeldZilla]

Re: Your doing it all wrong!

Re: Your doing it all wrong!

Well I don't know about the racing part but I started my radar arch and davit assembly today. you know it will probably be next year
before I can afford the radar unit..(Bummer) Btu thats ok I will sure be ready. Today I did some cutting and welding. I mounted it up just to see
how it was going to look. I cut it to tip back at 20 degrees. I think its right on the money there. So oops I can't keep up with you but I will stalk you
with my radar. (hehehehe) You can run but you can't hide. you know when it comes to aluminum a skilsaw with a carbide tipped blade a miter saw with a carbide tipped blade
and a grinder with a flap disc and you can cut and prep a lot of aluminum. Then any good welder (220V and up) and a good spoolgun and some rolls of ER5356 aluminum wire
and some pure argon gas and your good to go. I use .023, .030, & .035 wires today I extended the legs on the arch I used .030 wire to but weld the legs together.
When I welded the arch down and the support on I used .035 the .023 will flat weld 1/8in and less all day and not burn through!! Well unless you really screw up.
Well anyway I probably will be awhile before I get too much more done. Not too long though so stay tuned there is a lot to do on this boat.. ( I just Love it )

WZ