Archive for June, 2012

Mazda to run Skyactiv-D diesel engine in 2013 Grand Am GX class

Published by Mazda Blogs on June 4th, 2012

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Mazda Racing Skyactiv-D Diesel Engine

Race teams in the Grand Am GX class can now get their hands on a new diesel powerplant. Mazda has announced the company will supply the new Skyactiv-D for the 2013 season. The race engines will use a stock 2.2-liter block with a two-stage turbo, just like the production version. Redline sits at a relatively lofty 5,200 rpm and the engine uses a very low 14:1 compression ratio. If you’re keeping track, that’s the lowest diesel compression ratio in the world.

Mazda says the Skyactiv-D is a full 10 percent lighter than the outgoing 2.2-liter MZR-CD diesel and that it generates up to 20 percent better fuel economy, as well. That’s partially thanks to a 20 percent reduction in internal friction.

The Grand AM GX class is just for advanced and clean drivetrain technologies. So far, Mazda hasn’t released any information on how much power race teams can expect to glean from the diesel mill, but the standard production unit is good for 173 horsepower at 4,500 rpm and 310 pound-feet of torque and a gloriously-low 2,000 rpm. Check out the full press release for yourself. If you need us, we’ll be busily daydreaming about a diesel-powered MX-5 Miata.

Continue reading Mazda to run Skyactiv-D diesel engine in 2013 Grand Am GX class

Mazda to run Skyactiv-D diesel engine in 2013 Grand Am GX class originally appeared on Autoblog on Mon, 04 Jun 2012 10:57:00 EST. Please see our terms for use of feeds.

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Mazda debuts supercharged MX-5 Miata Yusho concept in Leipzig

Published by Mazda Blogs on June 4th, 2012

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Mazda MX-5 Miata Yusho Concept - white, front three-quarter view

Mazda has unveiled a pair of special MX-5 Miata models just for the 2012 Leipzig Motor Show, including a supercharged version of everyone’s favorite roadster. For the latter showcar, dubbed “Yusho,” Mazda has turned to our friends at Flyin’ Miata for a supercharger kit to boost the machine’s grunt to around 241 horsepower. As you may recall, that’s the same blower that powered our Targa Newfoundland racer. Mazda also threw in a new engine management system paired with a set of new fuel injectors and a free-flowing exhaust. The powerplant also benefits from beefier Cosworth pistons and connecting rods, while a sport clutch handles dumping all that power onto the six-speed manual gearbox.

A set of 4.10 gears in the rear differential also helps the Yusho sprint from corner to corner. With a set of Bilstein shocks, Eibach lowering springs and semi-slick Toyo tires, this is likely the most fun you can have with your top down. While the Yusho is merely a concept, Mazda is also debuting a limited-production special edition MX-5 Miata as well.

At Just 200 units, the Senshu MX-5 Roadster Coupe comes with a retractable hard top, sportline interior and a Bilstein sports suspension. Designers applied a unique racing stripe, and a set of 17-inch alloy wheels give the machine a little more menace. Mazda will only produce 200 of the Senshu Miata models, and each one will cost European buyers €1,280 – about $1,600 USD – over the base price. Check out both press releasesfor yourself by scrolling down.

Continue reading Mazda debuts supercharged MX-5 Miata Yusho concept in Leipzig

Mazda debuts supercharged MX-5 Miata Yusho concept in Leipzig originally appeared on Autoblog on Mon, 04 Jun 2012 15:44:00 EST. Please see our terms for use of feeds.

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