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TOPIC: The V12 Project

The V12 Project 1 month 2 weeks ago #138404

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After many hours of research, planning, engineering and cussing, I have managed to fabricate an adapter that converts my 1947 American-LaFrance V12 J engine to a Velvet Drive transmission. I had to go with a Crusader aluminum bellhousing in order to get the starter high and to the rear...wouldn't fit against the block. Everything had to be ultra-precise. Incredibly, it is! There's still a lot of work to be done to finish the engine but the hard part is done. Now all I need is a boat for it. Unless a good candidate comes along, I may just drop it into the 1951 Chris Craft sedan.

I've decided not to go the high stack/6 carb route. I found a pair of NOS ALF carbs on Ebay (don't you just love it) so I'll go with the stock set-up. However, with just a 7.2 compression ratio, this engine is begging for a supercharger. Wouldn't you know it...I just happen to have a vintage McCulloch VS-57 sitting on the shelf. Stay tuned.....





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Mentor to the unenlightened!

"Never allow logic to interfere with a boat purchase." - J. S. Hadley
"Vintage quality beats new junk every time." - J. S. Hadley
"Anything supposed to do two things does both of them half-assed." - J. S. Hadley
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The V12 Project 1 month 2 weeks ago #138406

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You and the V12 have my full attention! What might be your top 2 or 3 boat candidates?

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Dr.Go!

The V12 Project 1 month 2 weeks ago #138407

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#1 Ideally, a mahogany "longdeck"...engine in front, driver in back.
#2 A utility that I could convert to a racer
#3 The 1951 CC sedan I already own

It will probably end up in the sedan.

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Mentor to the unenlightened!

"Never allow logic to interfere with a boat purchase." - J. S. Hadley
"Vintage quality beats new junk every time." - J. S. Hadley
"Anything supposed to do two things does both of them half-assed." - J. S. Hadley
"Success makes...

The V12 Project 1 month 2 weeks ago #138408

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Remarkable,itsa work of art,,dont waste iton just any boat,,Id leave it show room for a while great job Bill

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The V12 Project 1 month 1 week ago #138409

Probably a dumb question, but... How are you going to watercool the exhaust manifold?
Best,
Larry

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The V12 Project 1 month 1 week ago #138410

I have no words.... You are brilliant ! Your vision must come from those big green eyes !
That is one beautiful motor, and I'm sure the boat will be even better !
You set the bar so high, the Empire State Building doesn't have to duck to get under it !
I am not worthy !

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The V12 Project 1 month 1 week ago #138411

Probably dumb questions, but... How are you going to watercool the exhaust manifold? That's a one-to-one ratio transmission, what is the rpm range of the engine?
Best,
Larry

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The V12 Project 1 month 1 week ago #138412

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Simple solution...I'm not going to water cool the manifolds but I'll run water into the exhaust pipes right after the manifolds. The engine will be out in the open; no cover/too pretty. The max RPM is 3600 which is similar to a Chris Craft Model M engine but the V12 has 215 HP plus a whole lot more torque. A supercharger will increase HP substantially. I'll have to experiment with prop pitch to maximize cruise speed at 3,000 RPM.

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Mentor to the unenlightened!

"Never allow logic to interfere with a boat purchase." - J. S. Hadley
"Vintage quality beats new junk every time." - J. S. Hadley
"Anything supposed to do two things does both of them half-assed." - J. S. Hadley
"Success makes...

The V12 Project 1 month 1 week ago #138414

Awesome!!!!!!!!!!!!!

Bob

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The V12 Project 1 week 5 days ago #138584

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that would fit really nice in a volksboat!!!!

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Golden Rule number one; While working in the bilge, absolutely under no circumstances, NO FARTING!!!! Captn Shake aka Joe.

The V12 Project 4 days 2 hours ago #138614

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Making some progress. I've added the McCulloch supercharger and an electric fuel pump. Still waiting to receive the spark plug pipes I sent off to be re-chromed so I can complete the wiring/timing. I'm using a Sherwood raw water pump from a Mercruiser big block and I've added a (chrome) 140 amp alternator to supplement the original generator. A few sub-assemblies are holding things up but I should have everything (except the spark plug pipes) by the end of the week. This puppy has 24 spark plugs and takes 12 quarts of oil...I'm going broke!





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Mentor to the unenlightened!

"Never allow logic to interfere with a boat purchase." - J. S. Hadley
"Vintage quality beats new junk every time." - J. S. Hadley
"Anything supposed to do two things does both of them half-assed." - J. S. Hadley
"Success makes...

The V12 Project 4 days 1 hour ago #138615

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Sweet!! You did increase the fuel pump to put out 26 gallons p/minute wot right?
Does it take av gas? How about a video of her running on the stands when your finished. That would be a treat.
Nice wirk Jan.

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The V12 Project 3 days 21 hours ago #138617

Outstanding as usual! I'm with Call, let's hear that puppy when you fire it up!!!!!!!!!!!!!!!!

Bob

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The V12 Project 3 days 17 hours ago #138618

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You guys think I'll actually be able to make it RUN? I thought it was just an "engine stand queen." Well OK...I'll see what I can do but I'll need another month. This is a spare time project. I just spent an hour figuring out what size belt I need for the supercharger. All I had to go by was the original LaFrance Gates V belts...with an obsolete number. I need one 10" smaller. I finally found one listed under belts for a bus!

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Mentor to the unenlightened!

"Never allow logic to interfere with a boat purchase." - J. S. Hadley
"Vintage quality beats new junk every time." - J. S. Hadley
"Anything supposed to do two things does both of them half-assed." - J. S. Hadley
"Success makes...

The V12 Project 3 days 8 hours ago #138619

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Should have asked me. I have a parts warehouse that more than likely has what you need.
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