03 Mazda Mazdaspeed on 2040-cars

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2021 Mazda3 to gain a turbocharged engine, finally, probably

Buckle up, Mazda fans. The Mazda3 turbo might really be happening, says a report from Jalopnik. Some details from Mazda’s dealership extranet system observed by Jalopnik suggest weÂ’ll see a 2021 Mazda3 turbo in both sedan and hatchback form. We donÂ’t have eyes on the documents ourselves, but the report says both the sedan and hatchback versions will be all-wheel-drive only with no option for front-wheel drive. In addition to that, it looks like the turbo models will be exclusively automatic, as theyÂ’re both only listed as “6A” in MazdaÂ’s system. Sorry to break the hearts of those who were hoping for a manual turbo. The hatchback manual with the naturally aspirated 2.5-liter from the modelÂ’s first two years appears to be sticking around for a third, in case you were worried. There is one minor mystery that's a possible glimmer of hope for someone wanting more performance, though. The report says that a “MAZDA3 HB PP TURBO” is listed in the docs. Our hearts are yearning for the PP to stand for Performance Package, but it probably stands for “Premium Package.” ThatÂ’s the name of MazdaÂ’s highest trim Mazda3 right now, and itÂ’d make sense to offer the turbo engine on the upmarket model. The last we heard on this front was from a report published over a year ago. It suggested MazdaÂ’s 2.5-liter turbocharged four-cylinder as a possible drop-in. That motor makes 250 horsepower and 310 pound-feet of torque on premium fuel and would be a big upgrade to the 186 horsepower and 186 pound-feet of torque made by the naturally aspirated 2.5-liter under the hood now. Without a manual, the obvious transmission would be MazdaÂ’s traditional six-speed automatic. ItÂ’s a solid transmission for cars like the Mazda6 and CX-5, but itÂ’s not meant for sports cars, as we recently found in the automatic Miata RF. So no, this Mazda3 turbo wonÂ’t be a Mazdaspeed. It would simply be a quicker Mazda3, and while we can still pine for a true Mazdaspeed, this will be a welcome addition to the lineup. ThereÂ’s even more ancillary news in the report, too. The docs that Jalopnik saw say weÂ’ll be getting a Mazda3 with a 2.0-liter four-cylinder in 2021. That one has to be the Skyactiv-X engine weÂ’ve been patiently waiting for. It has already launched in Europe, but was delayed in the U.S. Those 100th Anniversary Edition Mazdas get a callout, too. The Mazda3 version of that is reportedly set to be equipped with the turbo engine, making that particular model even more enticing.

How Mazda got Skyactiv-X to work is incredible

"Take everything you know about engines and turn it around," Mazda North America Vehicle Development Engineer Dave Coleman says, patiently and with a look of benevolent pity, as he's quizzed about the particulars of the company's new engine. The Skyactiv-X engine is enigmatic — and deceptively simple in operation. And the bottom line for American consumers is that they'll be able to buy a car (or crossover; we don't know yet what vehicle will first get it) by late 2019 that provides diesel-like fuel economy but runs on regular old gasoline. In between diesel and spark ignition, but it's neither To truly understand it, you have to dive into the contradictions. Take that regular old gasoline: Contrary to common sense, the lower the octane, the better it works. In the lab, the Skyactiv-X engine loves 80 octane. The lowest Americans get is 87, so the engine is tuned for that octane. Go higher and you lose some low-end torque. Coleman was right. It's hard to wrap your head around an engine that thrives just at the point when most gas engines would aggressively self-destruct. It uses a supercharger to pump additional air — but not additional fuel. It uses spark plugs to start a combustion cycle that normally doesn't need a spark. And, quixotically, it's not displacing Mazda's own American-market diesel engine, currently languishing in a seemingly endless hell of regulatory approval. More bizarre: Mazda is a tiny automaker facing real existential headwinds, and gasoline compression ignition is a massive challenge. GM and Hyundai announced compression ignition, or HCCI, projects (full name, homogeneous charge compression ignition) to great fanfare, but they never amounted to a production hill of beans, crippled by reliability issues or horrible vibrations. Worse, they only worked at an unusably narrow range — low RPMs and low loads. HCCI research improved direct-injection gas and diesel engine technologies for these companies, but HCCI itself remains untamed. The benefits of lean combustion Why even try to tame HCCI? The answer is much better fuel economy and lower emissions. Less burned carbon-based fuel, less carbon dioxide released. That's simple. But there are some thermodynamic reasons for the lean combustion you can achieve with compression ignition that are worth explaining. The ideal amount of fuel for a conventional engine to burn is about a 14:1 air-to-fuel ratio. That lets every molecule burn nicely, in theory.

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

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.