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executives say the new 2.0-liter Skyactiv-X powerplant will still take some time to arrive to the North American market. The Skyactiv-X is a high-compression gasoline engine, and its 16:1 compression ratio is comparable to that of a
engine.
“We have a lot of technology. And we are introducing each technology in each region when the time is right,” said Mazda North America CEO Masahiro Moro at the SAE International WCX Conference,
. Moro stated that while the Skyactiv-X can indeed pass
emissions regulations, it’s not in the immediate pipeline for U.S-bound Mazdas; the slightly less hardcore Skyactiv-G will be amended first.
The launch-spec 2.5-liter Skyactiv-G engine in the new
will reportedly be supplemented by a 2.0-liter Skyactiv-G, which also has a bold compression ratio: according to Mazda, its ratio of 14:1 is the highest of any production gasoline engine. However, Moro didn’t state the exact timeline for that Skyactiv-G’s arrival, either. The compression ratio of the 2.5-liter “big block”
is 13:1.
In the 2019 model-year Miata roadster, the 2.0-liter Skyactiv-G makes 181 horsepower, and
an earlier Slovakian Euro-spec leak
mentioned the 2.0-liter 3’s power figure at 164hp. The bottom line is thermal efficiency through being able to extract more energy out of gasoline, and moving from G to X would improve
by 20-30 percent while giving more power. If the Slovakian specifications are to be believed, the Skyactiv-X would make 178h p and 164 lb-ft in the
.
from Autoblog http://bit.ly/2ITMpIz