2-Stroke V-8...

[BUTCH1]

Sounds like it wants to rev!, will be interesting when they put it in a boat or race car..https://www.youtube.com/watch?v=EmnsXTMLzCE

 

[Ketchup]

That was pretty weird. At first it sounded pretty normal, but when he revved it, sounded like a bunch of weed eaters in sync.

Now, as some of the commenters on the video mention, I have no idea why one would build such a thing.

 

[Jumpem]

A two-stroke road car would be awesome. It's too bad most everything two-stroke has become illegal.

As a kid, I much preferred my two-stroke four wheeler to four-strokes.

 

[BUTCH1]

A two-stroke road car would be awesome. It's too bad most everything two-stroke has become illegal.

As a kid, I much preferred my two-stroke four wheeler to four-strokes.

Yea, there's always good arguments both for and against 2-strokes but IMO on dirt-bikes, boats, their power to weight advantage seem to make the most sense although 4-stroke weed-wacker's are now common. Let's hope they don't go totally bat-shit crazy and start making fuel-injected weed-wackers..

 

[unokitty]

Back in the day, had a couple of two strokes. Picture of my favorite above.

Really fun around town. Not much for gas mileage. Then again, when gas was 35 cents a gallon that wasn't much of an issue.

Uno

 

[Meghan54]

That engine in the video was a production engine by OMC (Evinrude/Johnson). 3.6L, 275hp.

From an R&T article about the engine and video in the OP:

In 1985, Outboard Marine Corporation (OMC), parent company of Evinrude and Johnson, released a new carbureted 3.6-liter two-stroke V8 engine. The 3.6 GT and 3.6 XP twins were officially 275-hp engines, but lore suggests that the engines made at least 300 hp at the prop at 6250 rpm. Like all two-strokes, they liked a lot of fuel—91 octane in this case—and they liked to run wide-open, making them unsuited for most recreational users. What they were good for was speed.


Also like all two-strokes, the 275 responded well to tuning, and in 1989, a 10,000-rpm, alcohol-burning 3.5-liter version set a 176.556-mph world record for outboards—a record that still stands a quarter-century later. In 1988, the 275s were enlarged to become the 4.0-liter GT and XP 300 V8s, which were produced through 1995, along with occasional 275 and 250 variants. The V8 two-stroke was killed for a bunch of reasons, the most significant being the introduction of fuel injection, which made the same power possible from a much smaller V6, as Mercury soon proved.

http://www.roadandtrack.com/car-videos/latest/video-insane-evinrude-johnson-two-stroke-v8-startup

 

[BUTCH1]

That engine in the video was a production engine by OMC (Evinrude/Johnson). 3.6L, 275hp.

From an R&T article about the engine and video in the OP:




http://www.roadandtrack.com/car-videos/latest/video-insane-evinrude-johnson-two-stroke-v8-startup

Thanks, more interesting 2-stroke stuff..

 

[mmntech]

A two-stroke road car would be awesome. It's too bad most everything two-stroke has become illegal.

As a kid, I much preferred my two-stroke four wheeler to four-strokes.

Not sure I'd want a two stroke road car. You can get high horsepower and RPM from smaller displacements, but you get less torque. The latter of which is the more important number for road vehicles. It doesn't matter much on aircraft or boats, or small power sport setups that don't have a lot of weight to move. Though most are transitioning to four stroke because it's quieter and more fuel efficient. Plus you don't usually need to mix oil with the fuel.

You do see a lot of diesel two stroke being used as stationary engines. Usually turning a generator in a ship or locomotive. I'm not sure what the advantage is. Though if coupled directly to the prop on a ship, a two stroke diesel can run in forward or reverse without a complex transmission.

 

[BUTCH1]

Not sure I'd want a two stroke road car. You can get high horsepower and RPM from smaller displacements, but you get less torque. The latter of which is the more important number for road vehicles. It doesn't matter much on aircraft or boats, or small power sport setups that don't have a lot of weight to move. Though most are transitioning to four stroke because it's quieter and more fuel efficient. Plus you don't usually need to mix oil with the fuel.

You do see a lot of diesel two stroke being used as stationary engines. Usually turning a generator in a ship or locomotive. I'm not sure what the advantage is. Though if coupled directly to the prop on a ship, a two stroke diesel can run in forward or reverse without a complex transmission.

Most all 2-stroke engines have been oil-injected for some time now so the old days of mixing are long gone, the torque problem though is still there.

 

[RLGL]

That piece if crap is at least 15 years old. They were known to blow up with as little as 2 or 3 hours on them