[udu56]

Silly question, but what is the biggest (in displacement) one-cylinder engine you know?

[poncho62]

Don't know, but those old John Deere tractors had the deisel 2 cylinder and those pistons were huge.....They might of had a 1 cyl.

[CrashFarmer2]

I would guess the largest one cylinder engine would be one of those hit and miss engines.

Here is a link to an eight horsepower engine that displaces 297 cubic inches Goold, Shapley & Muir Co. Limited

Here is another with several hit and miss engines the largest is 6 horsepower with a 5 3/4 bore X 8 stroke 4 Cycle Hit & Miss

And here is a page with some really big ones. I bet the displacement on that 60 horsepower one is immense. Commercial Engine Company Los Angeles, California

Poncho, those old two cylinder deeres did have huge pistons and they were gasoline and diesel. One of the largest diesel models the R had a was 416 cid with a 5.75 X 8 bore and stroke.

[61bone]

Are we talking internal combustion or all engines? I saw a Corliss steamer that had a two' bore and about 6' stroke.

[udu56]

Hey, lots of info on those links. I never thought these things were so Big. And run so slow.
So I would like to add one more category to specs (1 cyl, big, gas), revs at least 1500. Whole idea is to find an Alternative powerplant for show wehicle. Those motorcycle singles are not having enough torque.

[smoke]

I know of a guy that builds 500cc 2stroke motors that put out right at 100hp on alcohol. Honda based trx motors for quads. I will try and find the link for his page.

[smoke]

http://saberracing.com/

[Blazin72]

Yeah, some of those steamers were pretty darn big. Those old steam locomotives had some pretty giant cylinders.

The cylinders on this Steam Locomotive displace over 11,000 ci.

Speaking of single cylinders and Honda TRX engines, what are the 450s capable of? My friend just bought one and he's never had a quad before. That should turn out rather interesting...

[smoke]

I know guys that are getting a good 60 hp with alot of mods to the motor. Mostly sand drag bikes. That is a great bike he got. Handles very well and has good power for a stocker. There are many things he can do to it if he wants. Just like cars the sky and checkbook is the limit.LOL.
If your friend is on the net he should check out this site.

http://www.planetsand.com/ubbthreads...eads.php/Cat/0

[malc]

Kohler reckons they have the biggest single cylinder

[61bone]

Originally Posted by malc

Kohler reckons they have the biggest single cylinder

Not even close I found a flickinger gas engine circa 1910 that has a 15.5" bore x 20" stroke produced 40 Hp @ 750rpm.
Your not going to find a large displacement single with much rpm as the weight of the piston will make the rod awful long if it gets up any speed.
If you want a different engine put a 450 hp flat 8 Continental in it.

[willowbilly3]

Those old Ajax oil field engines were quite large. They were hit and miss too, with about a 6' flywheel. Fired once every few seconds.
I have owned at least 5 Suzuki 500 quadracers. I don't think 2 strokes come much larger. Lots of fun.

[malc]

This one is steam and had a 12´stroke and 12´bore.
Could´nt find any more info or pics on this one.

[2-manytoyzs]

I was in Jarome Arizona at the Antique Mining and Truck museum last spring. They have a single cyl hit and miss engine with a 12' cylinder on site. They also had a very old 3 cyl hit and miss that is 3 stories high and for $20 they will start it up for you! Absolutely unbelievable! They have hundreds of antique rare old trucks, boat motors, motorcycles, etc. on the property. My favorite was an old 2 wd tote goat. Most of it slowly rusting in the Arizona desert. It a little out of the way (south of I-40 near Sedona) but if your into old engines and equipment it a great place to visit.

[CrashFarmer2]

Originally Posted by 2-manytoyzs

I was in Jarome Arizona at the Antique Mining and Truck museum last spring. They have a single cyl hit and miss engine with a 12' cylinder on site. They also had a very old 3 cyl hit and miss that is 3 stories high and for $20 they will start it up for you! Absolutely unbelievable! They have hundreds of antique rare old trucks, boat motors, motorcycles, etc. on the property. My favorite was an old 2 wd tote goat. Most of it slowly rusting in the Arizona desert. It a little out of the way (south of I-40 near Sedona) but if your into old engines and equipment it a great place to visit.

That looks like a place I would like to visit, I found the link Goldking Gold Mine and Ghost Town.

2-manytoyzs, did you see that strange looking old cabover, picture number 13 when you were there? I'm thinking it looks like a Dodge.

I found a little information on that 3 cylinder engine. It is 10,154 cid and the flywheel weighs 13,000 pounds, WOW.

I wonder how many cubic inches the 12 foot one cylinder is.