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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 CX-5 updates bring nav to more trim levels

The refreshed 2016 Mazda CX-5 is already one of our favorite crossovers of its size for the model's engaging driving experience, upscale interior, and slick infotainment system. For a new 2016.5 model year upgrade that arrives in January, Mazda gives customers even more standard features to enjoy, but prices also tick upward. The Japanese automaker just gave the 2016 CX-5 light upgrades like LED signature lights and an update to the Mazda Connect infotainment system. The 2016.5 updates add a backup camera on every version except for the base front-wheel drive Sport with the six-speed manual. For buyers considering higher trims, all Touring and Grand Touring models get the welcome inclusion of standard navigation, and the Touring now comes with heated front seats, too. The extra tech comes with a jump in cost. As of Dec. 15 Mazda increases its delivery and destination charge from $820 to $900 for crossovers and $835 for cars. The change brings the base price of the front-wheel drive 2016.5 CX-5 with a manual gearbox to $22,695, and the top-spec all-wheel drive Grand Touring now retails for $30,770. 2016.5 Mazda CX-5 Adds More Standard Features to Best-Selling Compact Crossover - Backup Camera Now Standard on Most Trim Levels, Navigation Added to CX-5 Touring and Grand Touring - IRVINE, Calif., Dec. 18, 2015 /PRNewswire/ -- Just in time for Christmas, Mazda North American Operations (MNAO) has announced pricing and packaging for the 2016.5 Mazda CX-5 compact crossover, adding value and reducing complexity in CX-5's trim level structure. 2016.5 Mazda CX-5 Adds More Standard Features to Best-Selling Compact Crossover New for the mid-model year, a backup camera is now standard on all trim levels equipped with Mazda's SKYACTIV-Drive six-speed automatic transmission. CX-5 Touring models gain standard navigation and heated front seats. CX-5 Grand Touring models also add navigation as standard equipment. "The added content in 2016.5 CX-5 reflects our customers' tastes toward premium features in a compelling, fun-to-drive, stylish crossover," said Robert Davis, Senior VP of U.S. Operations, MNAO. "CX-5 buyers are educated, upwardly mobile, active-lifestyle individuals. With these updates, we aim to provide them with an even greater ownership experience." Previously, CX-5's backup camera was part of the Rear View Camera Package on the CX-5 Sport trim level. Navigation was available in the CX-5 Touring and Grand Touring Technology Packages.

Britain's BBR already promising 2016 Mazda MX-5 Miata with 200+ horsepower

The 2016 Mazda MX-5 Miata is one of Autoblog's most anticipated cars to drive this year, and with good reason. Thanks to svelte, angular styling, the promise of less weight, the possibility of more power and all at a fairly affordable price, it represents pure, automotive enjoyment. Mazda is still not saying exactly how much power the new Miata's 2.0-liter Skyactiv four-cylinder engine will make, but that isn't keeping British tuner BBR from already working out how to squeeze even more ponies from the mill – potentially as much as 200 horsepower with natural aspiration. The company bought a Mazda3 for access to its 2.0-liter Skyactiv and went to work on it. "Our objective with the all-new MX-5 is to achieve the same 200 bhp output that we can easily enjoy with simple bolt-on components on the current 2.0-litre NC model, before building on further power upgrades using forced induction," said Neil McKay of BBR in the company's release. The 3's version of the engine is rated at 155 hp and 150 pound-feet of torque but is expected to be tuned for additional grunt for the droptop. Still, it gives BBR something to experiment with before the real thing is available. The tuner also got the opportunity to take a look at a pre-production 2016 Miata and is already developing "subtle bodywork alterations" for the upcoming convertible. You can get a taste for the company's plans with the rendering above. It sports tinted lights, a front lip spoiler, lower side sills and a tiny rear spoiler. Scroll down to read more about BBR's plans in the official announcement. BBR UNVEILS STUNNING 200 BHP ALL-NEW MAZDA MX-5 CONCEPT Despite deliveries not scheduled to begin until July, legendary Mazda performance tuner BBR is making great progress with both its visual concept and powertrain development for the all-new MX-5. "A program of detailed performance enhancements has already commenced at our Brackley base," says BBR's Neil Mckay, "thanks to our investment in a 2.0-litre Skyactiv powered Mazda 3. Our objective with the all-new MX-5 is to achieve the same 200 bhp output that we can easily enjoy with simple bolt-on components on the current 2.0-litre NC model, before building on further power upgrades using forced induction." Having viewed a pre-production version of the car BBR is also working hard on visual enhancements to add more presence to the svelte lines of the all-new MX-5.