if you have a look dodgeman one of the engines is turned around. i can tell by the side of the inlet manifolds, the bolts on the heads are in different positions and so are the cam gears so there you have it now they will spin both the same way and run off one center crank. and the block looks different so that has been swapped around
all that just from observation

is that plate at the back for the bellhousing?

yea i have a better foto sumwhere but i cant find it. There is a whole bunch of hole drilled in it to pick up the bellhousing bolts. I really do have to try and get hold of the guy who is building it and have a really good chat. build cost was apparantly around 20k. sounds expensive but compared to a 70k motor from a name brand for this speedway class its relativly cheap....

if u would look closely the engines ARE opposite directions if they were the same way the throttles would be on one side, so this will work fine.

Kegs is right. There are two engines here & in order for the induction to be in the middle, & exhaust to be on the outside of this newly created powerplant, it is necessary to have one engine mounted the opposite way to the other, & this is what has been done.

This means that when you look at the crankshafts from one end [any end] they will rotate in opposite directions, as I had writen in my previous post.
If a shaft is laid down the middle, as it looks like it will be, it can not recieve drive, either gear or chain drive, from both cranks as they are running in opposite direction.

Each of these engines has an output end of the crank, & in this design, it has one of these at each end of the composite engine. [see photo] If the output end of one crankshaft is given a 1 to 1 gear drive to this central shaft, & the other end is given a 1 to 1 chain drive, then it will work, but the chain needs to be kept free of slack, & some carefull phasing to ensure that all cylinders fire an equal rotational distance apart will be desirable.

With this system you could make the common shaft [the flywheel shaft?] rotate in either direction depending on which end has the gear drive.

4 gears is all that is required to spin the centre crankshaft off both motors. It can all be set up at the same end of the V8.
No chain drives required. Although a chain drive isnt exactly technical - these 2 motors run accurate cam timming by chain, Same with the A series.

Yes there must be a plan for a center crank. And i would imagine this would be gear driven from the 2 motorbike cranks

So in total 3 gears with the center crank spinning the opposite way if that makes sense

If the left side rotates, lets say, anti clockwise, then an imaginary flywheel would be rising on the part closest to the centerline of this engine.
The right engine would rotate the other way with the imaginary flywheel also rising nearest the centerline of this engine.

If these 'flywheels' were instead, equal sized gears, then they could be linked directly to each other.
If a driveshaft was coupled to just ONE of these two crankshafts, then it would provide an output that just might work. It would be an asymetric output, but an output none the less.

Judging by the common crankcase, it looks like he has something else in mind.

They guy is claiming around 300 horses on a rough tune at around 11000 with redline at 13500. It is two seprate crankshafts which drive onto a common shaft then out to a gbox. dunno what box he is gna use. I only spoke to him for a little while. It is an awesome little motor tho. the engineering is superb.

He should have made better use of the space that he has with the manifold.

I think they look like totally stock carbs/manifolds, so on the bike they have to be tucked up like that.

I'd be interested to see the crankshaft setup. It certainly is a good piece of engineering.

How does he plan to couple the two cranks to a common shaft since, as the two engines are facing opposite ends, they will be rotating in opposite directions?

actually no ive confused myself