Posts Tagged ‘grand am’

Mazda Skyactiv-D racer first diesel to run at Indy in 60 years

Published by Mazda Blogs on July 26th, 2013

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While it may not be touting the old “Win on Sunday, sell on Monday” axiom we all know and love, Mazda recognizes that racing can only improve its cars. And so it’s no surprise that the Japanese automaker is testing and refining its Skyactiv-D diesel engine by sending it out on various race tracks around the country – notably being the first diesel ever to compete at Daytona and the first to notch a Grand Am win at Road Atlanta.

Next up? Indy. It has been over 60 years since a diesel-powered machine ran at the Indianapolis Motor Speedway, and the Cummins-powered racer that competed in the 1952 Indy 500 with a 6.6-liter inline-six-cylinder oil-burner was a fast and brutal machine that set a new lap record in qualifying leading up to the race. Though that car was withdrawn with turbocharger failure 71 laps in, its diesel powerplant left an indelible impression on the racing community, and that’s something Mazda hopes to accomplish once again.

Mazda says that the diesel engine in its race car is pretty darn close to stock – 51 percent stock by parts count, and 63 percent stock by weight – which means the way it performs in competition is at least a somewhat meaningful way to the stock engine’s durability in the real world. Check out the image of the Mazda6 Skyactiv-D racer posing alongside the 1952 Cummins above (click to enlarge) and feel free to peruse the press release below for the rest of the details.

Continue reading Mazda Skyactiv-D racer first diesel to run at Indy in 60 years

Mazda Skyactiv-D racer first diesel to run at Indy in 60 years originally appeared on Autoblog on Thu, 25 Jul 2013 18:30:00 EST. Please see our terms for use of feeds.

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The 2013 Rolex 24-hour race at Daytona comes down to the last hour [spoilers, w/video]

Published by Mazda Blogs on January 28th, 2013

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It took 24 hours to run the race, but it was the last one was stuffed with the high action as four cars were still trying to figure out how to gain victory on the track and in the pits. Along with the obligatory crashes, spins, mechanical issues and retirements had come numerous penalties, a double-digit number of full-course yellows and two hours of fog that turned early Sunday morning into a stretch of parade laps.

The final hour would make up for the morning – drivers who might have been happy just to get on the podium had a shot at victory as the end of the race approached, and that turned into a few gambles that paid off, and at least one that didn’t…

Continue reading The 2013 Rolex 24-hour race at Daytona comes down to the last hour [spoilers, w/video]

The 2013 Rolex 24-hour race at Daytona comes down to the last hour [spoilers, w/video] originally appeared on Autoblog on Mon, 28 Jan 2013 17:01:00 EST. Please see our terms for use of feeds.

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Diesel-powered Mazda6 going racing in Grand-Am Series

Published by Mazda Blogs on November 30th, 2012

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Diesel-powered Mazda6 Grand-Am Series racer - artist's rendering

The diesel version of the 2014 Mazda6 won’t be hitting North American showrooms until the middle of next year, but we won’t have to wait that long to see the car in action. Mazda will enter its midsize sedan in the new Grand-Am GX class with a Skyactiv-D clean diesel engine under the hood, and the car will make its racing debut at the Rolex 24 at Daytona on January 26. This will be the first time in the race’s 60-year history that a diesel-powered car has competed in the 24-hour race.

We first heard about the 2.2-liter turbocharged Skyactiv-D race engine back in June, but we now know it will used in the Mazda6 and we have a little bit better of an idea of power output. Developed in conjunction with SpeedSource, the clean diesel racer is said to produce more than 400 horsepower using many of the same components that will be found on the passenger version of the car.

The newly created GX class will race against the Daytona Prototypes and GT class cars, and its goal is to provide a race class for alternative fuels and technologies. In addition to the Mazda6, the Lotus Evora GX will also compete in the this class, which will be composed of 13 models from 12 automakers – including Audi, Hyundai, Ford and Scion.

Scroll down for Mazda’s press release, and be sure to check out the Grand-Am link for more information.

Continue reading Diesel-powered Mazda6 going racing in Grand-Am Series

Diesel-powered Mazda6 going racing in Grand-Am Series originally appeared on Autoblog on Fri, 30 Nov 2012 16:30:00 EST. Please see our terms for use of feeds.

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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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