How to run two engines side by side on one car

Not trying to beat a dead horse or anything, but this topic really interests me. Anyone know anything else about this?

 

Tommy Ivo's slingshot that is at Garlits museum of Drag Racing has two side-by-side Buick nailheads. They are both tilted towards the outside and are connected (believe it or not) by the flywheels. One engine runs backwards so the torque is neautralized. The two flywheels are doubled as gears. You run one transmission and the third member in the rear sits off-set.The exhaust pipes are pointed right at the drivers face up the middle of the car.

 

this thing (Invader) made it to the cover of hot rod magazine back in the 69 or 70 I think, I can't remember how or if it was a true twin powered setup.

 

Good point about the Torque Rumble Del! "One engine runs backwards so the torque is neautralized." Someone posted a video of Tommy Ivo, watch it. It is full of good info.

 

yeah, but no one seems to be reading it.

 

There's a picture of it on here...2 Trannies, 2 Jag IRS Pumpkins (similar to Roth's Mysterion minus the IRS part)

 

Not true. There are many Jag V12s running around with manual transmissions (retrofitted by the owners). These are heavy cars and the rears DO NOT BREAK! Including the stock Jag rear in the twin-supercharged V12 Jag XJ-S I mentioned in an ealrier reply. That car had a 6 speed and the stock Hag rear took all the abuse without failure.

Now, what CAN happen with a stock Jag rear is that the rubber cage mounts can break.. I know a guy who had a nitrous XJ-S. From dumping the clutch he ripped out the stock cage mounts. There are ways of addressing this in a high powered Jaguar but that is off topic for this forum. Suffice it to say that the rear ends do not break.

 

Here are some pics from Big Daddy Don Garlits museum in Ocala FL.

 

In the Showboat video Tom explains that the exhaust up the middle keeps the tire smoke away so the driver can see down the track.

 

I can't argue with that. But here's the stub axle from an XJS powered by a 355 and 10lbs of boost through a 5 speed. How the stick trans is shifted means a lot, of course. This happened on the street with radials.

They are just Dana 44s after all.

 

yeah...there's the car! Absolutely one of the most amazing and beautiful dragsters of all time!

 

Cancel: Solution already given.

 

Dude check out monster garage, there was an episode where they did a tractor pull competition using an old army Jeep. Another source is Bugatti, the veyron has 2 crankshaft output shaft and the tranny uses a twin clutch system. I did have some ideas myself to make something like this for a college project. U could do this, 2 engines side-by-side config, make an engine face plate (depending on the engine ur using) with a single shaft in between the engines and use a belt drive system. Machine a tranny faceplate to mate the engine to the tranny. Well that's what I'll do. This was a Baja EV vw beetle, u could use the motor mount concept for ur project mate.

 

Here is another solution using mainly stock GM parts. Early Toronado and Eldorado used engines from 425 to 500 cu in driving thru a 400 TurboHydramatic. But, the trans was turned sideways, set beside the engine, and driven by a Morse chain. These have proven very reliable, and well capable of 100MPH or more.

Now here is the idea. Make an adapter plate that connects the back of both engines. Each engine has a Toronado torque converter with chain sprocket. We use a modified Turbo 400 transmission with 2 sprockets, driven by 2 chains.

One unusual feature was that the trans in the Toronado ran backwards because it was turned around. So, you would have to use the casing or front part of the Toro trans with conventional insides. I believe it is possible to beef up a TurboHydro 400 to take any amount of power your rear tires can hold. You would end up with a conventional trans, with the Toro front on it to mate to the sprockets.

Some fabricating would be necessary but I think this would be the simplest and most practical solution.



Here is the Toronado power train. To be clear, I am calling for 2 of the Toronado bellhousing and torque converters, 2 chains, and 1 conventional, rear drive Turbo 400 trans modified to accept the chain drive, using parts from the Toronado transmission. Hope this is clear.

 

Now that I think about it lots of engines in FWD vehicles have similar torque converter and chain drive setups even though they have transverse engines. So, you could use nearly any engine(s) with stock torque converters, bellhousings and drive sprockets, if you had a RWD trans suitably modified.

 

Those where built so you would have two engines when pulling heavy loads up steep grades. there was a version that ran the main engine with a stick trans. and a straight 8 buick and auto trans was used when the extra pull was necessary.

 

Great stuff here

Thanks everyone

 

In a non-HAMB vehicle I run an LS3 through a 6L80E trans set back to front in the chassis. I then use a Nissan transfer case to turn the drive around by driving the rear off the front output flange.

This is transmitting 440ftlb of torque through a 4:1 1st gear, so 1,600ftlb of torque through a chain drive.

I have 2,000 miles on it and no problems to date.

Traction is taken care of by M/T 12"wide tyres.

 

Matey's check this website out...might be useful....http://www.thextremexperience.com/cars/a-w-16-engine-with-1200-horsepower-and-its-not-a-bugatti/

 

Would like to see more of that "trick" transfer case. As shown, it's just a machined plate joining the engines.

A suggestion for combining engines that rotate the same;
SilentSync toothed belts
Each engine could have a belt that runs to a common shaft then to a transmission.
OR,
The engines could be belted together, with one engine having the clutch & input to a transmission
The 14mm pitch belts are available in various widths. The pulleys don't need flanges.
Not cheap by any means, but would more efficient and much quieter than chain drive.

A question about the dual Jag rear- end setup.
Evidently this setup works, but.... What keeps the common stub shaft between them from turning?
Do the Jag differentials use a Torsen spool?

 

This might help
http://jonam58.blogspot.my/2014/11/eco-motihtmlh-motor-splits-dual-fuel.html
http://www.hotrodders.com/forum/running-dual-engines-192366.html
But the hotrod uses chain...dudes ur better of using belts and pulleys

 

And a disi that works in the opposite direction, and an oil pump that works in the opposite direction, and in engines with offset wristpins you'll need to reverse the pistons (or have new ones made)....

 

The common stub shaft turns freely.
If you imagine the assembly with both the wheels turning at exactly the same speed, then all 3 shafts will be turning at the same speed. The only problem would come if they were both open diffs and one of the transmissions seized as the outer shaft on that side would try to turn backwards.

 

You have to lock one diff.

 

This is not going to help much here but interesting none the less. The link was posted on the p15-d24 forum. Chrysler A57 multi-bank tank engine. Five 251 c.i. flat heads.

https://oldmachinepress.com/2012/10/05/chrysler-a57-multibank-tank-engine/


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This one was at Pete and Jakes open house