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The Mazda team successfully built their new engines on the basis of improving compression rations. The significant boost of up to 14:1 from the previous 11:1 within a 2.9 liter is a smart and innovative way to gain more work from the power stroke of a piston. Doing so is a double edged sword as it has the potential to create work problems when the engine starts to heat up so to combat this possible scenario, Mazda has decided to use high length 4-2-1 exhaust headers, which are designed to prevent hot exhaust gas from entering the intake stroke of the following cylinder. The custom modifications on the Sky series has made it longitudinal, making it a challenge to fit this current engine model... [Read more...]

A deep look into the future of diesel engines with Mazda’s new fuel-efficient line  Automotive enthusiasts and engineers from around the world have been in constant pursuit of the next big thing when it comes to fuel-efficiency and more technologically innovative engine design. Mazda is racing through the lines with its launch of a brand new group in four cylinder engines called Sky-G and Sky-D set to revolutionize how fours provide engine power to most of Mazda’s franchise. A lot of testers have shown considerable favor over the new engine family as it competes with both speed and fuel economy when compared with other favorite Mazda engine types. The Sky-G with a 2.0-Liter version is set... [Read more...]

The Dempsey Racing, co-owned by actor Patrick Dempsey, has intentions to become the first team to gain access and be able to utilize the SKYACTIV-D in next year’s LMP2. Dempsey and his co-driver and race partner Joe Foster have raced in the GT Category of the Le Mans 24 Hours and are clearly excited to go back in 2013 to race at the LMP2 class with the utilization of this particular diesel fuelled engine by Mazda. The Dempsey Racing Team had their operations duly expanded in order to compete in the LMP2 and LMPC classes of the American Le Mans Series in 2013. Dempsey Racing, a team who has campaigned for the Mazda RX-8 since 2007 at the GRAND-AM GT class, has generated impressive results, particularly... [Read more...]

It has been recently announced that Mazda Motorsports will be supplying their race tuned and diesel fuelled SKYACTIV-D engines to the various teams who will compete in the Le Mans Prototype 2 class. This engine is set to make its debut at the Dempsey Racing in 2013. Mazda, currently the only car maker from Asia that has won in this endurance race, plans to develop a version of the 2.2 liter SKYACTIV-D race tuned and diesel fuelled engine for the various teams who will compete in the 2013 GRAND-AM Championship’s Advanced Technology GX Class. According to Jay Amestoy, the Vice President for Mazda Motorsports, the company has provided engines that have won international races and plans to have... [Read more...]