Found this on Youtube Today !!!!

[5 Horse Fan]

homemade twin cylinder briggs & stratton engine - YouTube

 

[bandit 40]

Very slick:thumbsup:

 

[5 Horse Fan]

Yeah, I like how they are synchronized.:thumbsup:
This may work well on a minibike if a jackshaft setup was integrated...

 

[murrayeliminator]

I don't see any advantage to that. then just running two complete engines together with a chain & sprockets... :shrug:

 

[5 Horse Fan]

I see what your saying when a new Briggs Animal is rated at 10hp out of the box.
When you consider that running two synchronized engines 180 degrees apart, you get 1 piston firing every revolution.

 

[65ShelbyClone]

It sounds cool. It would sound even cooler if the engines fired 180° apart like the old Honda CL/CB72s and 77s. :wink:

A few concerns, though: the tensioner is on the wrong side of the chain. It should be on the slack side, not the tension side. I also wonder if the engines are phased correctly at 360° apart. That guy will find out either way once he puts a load on it. :scared:

 

[5 Horse Fan]

Just think about it ......2 Terminators would make close to 100HP.
We're talkin serious 1/4 mile times..... and a $15,000 minibike.

 

[65ShelbyClone]

And for less than $1,000 I can get a 110+hp, 14,000rpm pump gas crotch rocket engine with a six-speed gearbox. :wink:

 

[KB2ROCKET]

Interesting but no advantage

 

[Gibson]

I myself never did see advantage of 2 motors no faster 'i dont think' could be wrong, if they were 180 off hmm sound better but never the less kool conception of the imagination.

 

[The Restore Kid]

It actually is bolt on double the torque.. They turn the same speed, but accelerates twice as fast, PLUS gives you more power to make top end speed with from gearing..

 

[5 Horse Fan]

Well, I'm inspired.:drinkup:

This is the way I wanted to run my setup.
Direct-drive basically simulates a 2 cylinder engine.

May start looking for materials soon.......

 

[Modding_out]

We talked about this already people...a big long thread
Long story short it's been proven to work and work well, but the engine in front has to have a 15 degree lead on the 2 engine other wise there just gonna fight eachother, break chains, shear keys. And all the like.

 

[jeep2003]

It sounds cool. It would sound even cooler if the engines fired 180° apart like the old Honda CL/CB72s and 77s. :wink:

A few concerns, though: the tensioner is on the wrong side of the chain. It should be on the slack side, not the tension side. I also wonder if the engines are phased correctly at 360° apart. That guy will find out either way once he puts a load on it. :scared:

it is on the slack side. depends how you look at it really. either way will work on that setup

 

[Confused1985]

What you want is one of these!
http://www.youtube.com/watch?v=tpL5gynFIsM
http://www.youtube.com/watch?v=wtXGKwRJvjo

 

[Jeff Clark]

I think the kendick special was the iconic of all multi engine builds in the 60's (excluding auto)

Vintage Kendick Dragster at Medford, OR - YouTube