anyone know how to couple two engines nose too tail?

[bob]

I've always thought that a twin engine t-bucker hot rod would be kind of nice and rather unique,
the only real question I have is
how do your effectivly connect the front engines crank to the front of the rear engine
so that minor diferances in firing timing,
and crank alignment wont cause problems
and still transmit the power from both engines to the rear wheels?

 

[joegagan]

great question!

my son sean, a mech engineering student and i were asking this as well.

 

[grumpyvette]

http://www.kenlowe.com.au/driveshafts_c ... covers.htm

http://www.kraftpower.com/pdfs/KFBD_SKF ... on_Eng.pdf

http://www.youtube.com/watch?v=jM0wN0zRhgk

http://www.youtube.com/watch?v=hSprOTA-X8M

http://www.youtube.com/watch?v=VfswVtaZJHU

http://www.hotrod.com/featuredvehicles/ ... nsion.html

http://www.sirecustomperformance.com/Ga ... apism.html

http://www.youtube.com/watch?v=vto1-J_C ... B0wmz4laHU

http://www.hayescouplings.com/

viewtopic.php?f=81&t=2617&p=6756&hilit=poly+mounts#p6756

http://www.mercstuff.com/couplers.htm

http://www.wholesalemarine.com/p/SIE-18-2323/

http://www.grainger.com/Grainger/chain- ... ?op=search

HERES ONE ROUTE

"There are two sprockets in this photo. The only way they are connected is via the dual roller timing chain. On our digger (and most of the other inline twins), one sprocket was connected to the back of the flywheel on the front engine, and the other sprocket was connected to the nose of the crank on the back engine. The engines were mounted close enough together so that a single chain (like the one shown) wrapped around both sprockets."

connecting TWIN ENGINES nose too tail
Take a look at the photo I put up on this. Now, picture in your mind, two separate sprockets. There is NO connection between the two sprockets, they are completly independent of one another. One of the sprockets is attached to the front of the crankshaft of the back engine, the other sprocket is attached to the rear of the crankshaft of the front engine. The engines are mounted in the chassis so that the two sprockets are about 1/2-inch apart. So far so good?

Now, picture a dual-roller timing chain. It's a single width chain but the chain is designed to fit over two separate sprockets. This is the ONLY means of connecting the two sprockets, and hence, the two engines.

Go back and look at the photo again. The diameter of the sprockets is not important, as long as both of them are the same diameter.

This is a dual-roller timing chain. Note the dual sprockets just to the right of the timing chain (forget about the fact that there are two different sizes, that is not important). Now, instead of having dual sprockets as one piece, as they are in this photo, imagine two SEPARATE sprockets mounted that close together."
__________________

 

[grumpyvette]

 

[87vette81big]

Grumpy those 2 Pontiac Engines coupled together I believe are from Mickey Thompsons 4 engine Challenger 1.
Original mockup of Donated Ray Nichols NASCAR Engines. Definate pair of 1958 370 Ci Pontiac V8 engines.
I recognize the cylinder heads.
I have a single 1958 370Ci. Pontiac head put away.

 

[87vette81big]

The early Pontiac P/8 Starter motor is present to Grumpy.
Bolts to the Trans bellhousing instead of engine block.
Used from 1955-'64 . 1St to use block mounted starter wad 1964 Pontiac GTO & 1964 Pontiac Hrandi Prix.

 

[87vette81big]

Have a few 1959-64 Pontiac full size starter motors put away also. Now hard to find.

 

[grumpyvette]

this looks interesting

 

[Indycars]

Looks like you would have to run fuel injection on that setup?

 

[87vette81big]

I would love to build a T-bucket like Ricks.
But Pontiac Twin Engined powered.

 

[Strictly Attitude]

What about coil per cylinder fired as v16 linked cranks custom cams?

 

[Loves302Chevy]

Grumpy those 2 Pontiac Engines coupled together I believe are from Mickey Thompsons 4 engine Challenger 1.
Original mockup of Donated Ray Nichols NASCAR Engines. Definite pair of 1958 370 Ci Pontiac V8 engines.
I recognize the cylinder heads.
I have a single 1958 370Ci. Pontiac head put away.

You are too young to know about all of this OLD stuff.
You must have the DeLorean time machine from Back to the Future in your garage
and visit the past quite often.

 

[87vette81big]

You are too young to know about all of this OLD stuff.
You must have the DeLorean time machine from Back to the Future in your garage
and visit the past quite often.

I am a Die Hard Pontiac guy Loves 302.
My late bud Bill was an old timer like Grumpy.
Older. Taught me all.

 

[rlphvac]

NEVER question Brian on Pontiac trivia