phantom 21 inboard

[bor]

the engine arrived brand new ,have maked a plan to upgrade it whit forged rottation assembly and a good cam so we can reach the 500 hp maybe a little more.

also did some thinking about the deck and gonna pull it off,much easier for the work on the hull and know for sure it will hold at 80!

 

[jw.]

An interesting project, bor. You have a lot of work to do!

 

[Scand]

Looks like a good project. How heavy do you think you engine and drive will be?
We had an old phantom 21.5 that we put a strait 5 Volkswagen marine diesel in with a surface drive and loads of measurement equipment. Worked really well at speed but was quite to low in the water rest. The old 21.5 was 1.56 meter between the chines.

 

[bor]

Looks like a good project. How heavy do you think you engine and drive will be?
We had an old phantom 21.5 that we put a strait 5 Volkswagen marine diesel in with a surface drive and loads of measurement equipment. Worked really well at speed but was quite to low in the water rest. The old 21.5 was 1.56 meter between the chines.

good to talk to some one who has doen it!
what power deliverd that engine and what brand surface drive you added to it ?
I was also looking at a surface drive but are realy expensive so know using a brand new bravo 1X drive (old style) weights 70kg and the engine I guess would be somewhere around the 230 whit all acc.also build cloosed cooling on it so the drive line is arround the 300 kg mine hull is 1.67 meters
what kind of speed reached yours?

thx bor

 

[dazza]

There is a Bernico in either Belgium or Holland which has an outboard motor inside it right at the back, its a V8 all covered in and its very fast! its classed as an F2! Dad must have some pictures i will ask him 2day!

 

[dbe1]

You mean this one with the Johnson outboard inboard

 

[dazza]

Yeah thats the one, i thought you had some of the inside as well

 

[bor]

There is a Bernico in either Belgium or Holland which has an outboard motor inside it right at the back, its a V8 all covered in and its very fast! its classed as an F2! Dad must have some pictures i will ask him 2day!

You mean this one with the Johnson outboard inboard

Yeah thats the one, i thought you had some of the inside as well

yeah youre right it s also for sale at the site http://www.bernico.be/ very nice looking boat ! the clame a top speed of 145km/h 88mph!

if I reach that I am very happy

 

[Toffy]

The #32 was originally classed in F3, it was a fantastic project within regulation limits back then... It was the fasted F3 boat around... Due to regulation changes it's not in F3 anymore...

I've seen/heard it running last august @ manage. This is a real beast ! 145km/h is genuine, I was told while towing a skier ! The sound it produces is amazing, it's very high revin', should produce +400hp. Fuel consumption of this tuned OMC V8 must be towering high though...

You can see it running on youtube btw :

start 00:30 ; flyby 01:30 ;...

on topic: good luck with your project Bor ! Looks promising !

Greets, T.

 

[Scand]

good to talk to some one who has doen it!
what power deliverd that engine and what brand surface drive you added to it ?
I was also looking at a surface drive but are realy expensive so know using a brand new bravo 1X drive (old style) weights 70kg and the engine I guess would be somewhere around the 230 whit all acc.also build cloosed cooling on it so the drive line is arround the 300 kg mine hull is 1.67 meters
what kind of speed reached yours?

thx bor

I think the combined engine/drive equipment was about 590 kg.
Top speed was just shy of 50mph.

 

[bor]

I think the combined engine/drive equipment was about 590 kg.
Top speed was just shy of 50mph.

nice pics looks much more than 50mph,what kind of hp was it s engine ?

what surface drive you used on it ?

when mine is ready (I hope this summer)I will post some pics and spec s!

 

[bor]

update

So after 2,5 years I picked up the project There was another project coming up but know it's coming together !
I seperate the deck and hull and ripped all wood out,and put it up side down to repair all little damage and repaint the hull .
after that I maked new stringers and a transom from marine plywood and put them in whit epoxy glue and after that laminate them whit 7 layers of glass from side to side starting whit chopped 450 gr/m folowed whit woven 600gr/m and that 3 times .
Then I maked a bulkhead in the front and put in the first floors and laminated them in 3 layers of glass.
After some measurements we discovered that the engine came higher then we want even whit the 2" shorty so looking for options we found the surface which was to expensive ,the next option was the Blackhawk drive where I found 2 of them right here in holland so that's wat we gonna try .
After putting in the cockpit floor I started whit the deck ,maked some reinforcements in the dash and sides and maked the backside closed where normaly the outboard is fitted .
Now it's time to get the hull and deck back together and laminate them together whit 6 layers of glass ,and after that we are now bussy whit making the backside in shape and togehther .

 

[bor]

update engine

Today I was at the engine shop to build the close cooling sytem on the engine ,the engine is totally upgraded and stroked to 403 cid whit forged rottation assembly and converted to dry sump .
Hope to dyno it whitin a week or so to see what the power will be ,the guess is 550 hp and 750 nm tq . after the dyno it will be painted to avoid corrosion and mach the rest of the boat .

 

[bor]

Today I was at the engine shop to build the close cooling sytem on the engine ,the engine is totally upgraded and stroked to 403 cid whit forged rottation assembly and converted to dry sump .
Hope to dyno it whitin a week or so to see what the power will be ,the guess is 550 hp and 750 nm tq . after the dyno it will be painted to avoid corrosion and mach the rest of the boat .

got the engine back whit the dyno results ,we found 557 hp@6200 RPM and tq curve whit's is real long and flat start at 600+nm @3400 to drop @ 6400 under the 600 nm again ,max tq is 740 nm . know get al the hoses ,belt and intake off to paint the engine . here a few pics

 

[Matt]

Awesome!

 

[Silversurfer]

looking good!

 

[Scand]

very nice!

 

[bor]

dyno sheet

thanks guy's ,here the dyno sheets ,

 

[bor]

update

finaly got to the paint shop for the primer now just one time sanding and then we can go rigging !!

 

[bor]

painted !!

so it's ready for rigging whitin a few days after the paint hadend out