Hemmings Motor News Blog Blog

Hemmings Motor News Blog

Hemmings Motor News has been around since 1954. We're proud of our heritage, but we're also more than the Hemmings full of classifieds that your father subscribed to. Aside from new editorial content every month in Hemmings, we have three monthly magazines: Hemmings Muscle Machines, Hemmings Classic Car and Hemmings Sports and Exotic Car.

While our editors traverse the country to find the best content for those magazines, we find other oddities related to the old-car hobby that we really had no place for - until now. With this blog, we're giving you a behind-the-scenes look at what we see and what we do during the course of putting out some of the finest automotive magazines you'll ever read.

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Saving the World Two Strokes at a Time

Posted January 18, 2011 8:00 AM by dstrohl

Oh look, it's EcoMotors International, some new greenie-car startup company with a "revolutionary" engine design. I bet it'll save all the polar bears while running on a blend of hemp oil, wildflowers and moonbeams. So what automotive genius is running this company? Let me guess: Al Gore? Ed Begley Jr? Henry David Thoreau?

Uh, well as it turns out the President and COO of EcoMotors is John Coletti (image at left), former director of Ford's skunkworks performance division, SVT. Coletti is the guy who pushed for the Mustang to stay a rear-drive V-8 performance machine instead of becoming the forgettable front-drive that Ford sold as the unfortunately named Probe.

So if you think it's nuts that a guy like Coletti has signed on with an outfit called EcoMotors, you're really not going to believe the engine they hope to bring to market. It's called OPOC (Opposed Piston Opposed Cylinder), and it's a turbocharged two-stroke, two-cylinder, with four pistons, two in each cylinder, that will run on gasoline, diesel or ethanol. The two pistons, inside a single cylinder, pump toward and away from each other, thus allowing a cycle to be completed twice as quickly as a conventional engine.

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#1

Re: Saving the World Two Strokes at a Time

01/18/2011 1:29 PM

There is a cutaway of the engine in the article; too bad it isn't animated à la yesyen.

100 MPG? Is it not a little early for this sort of claim?

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#2

Re: Saving the World Two Strokes at a Time

01/18/2011 11:37 PM

Didn't the EPA just ban all two stroke engines in the US?

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#3
In reply to #2

Re: Saving the World Two Strokes at a Time

01/19/2011 5:52 AM

I'd assume that applies to "traditional" two-strokes. Don't know enough about these OPOC things - depends how they're lubricated.

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#4

Re: Saving the World Two Strokes at a Time

01/19/2011 7:11 AM

This type of engine is not new, I have seen three different boat engines of the same design way back in the 1960s, and one stationary engine that was built in the 1930s, these are the original "Boxer" engines, think about it?

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#5

Re: Saving the World Two Strokes at a Time

01/19/2011 10:37 AM

Here is some more hype about this engine from "The Engineer"- but they call it a "Scuderi Split-Cycle" engine...

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#6

Re: Saving the World Two Strokes at a Time

01/19/2011 6:48 PM

Seems to remind me of the old cross compound engines from the late 1800's and early 1900's era.

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