1990 Mazda Miata on 2040-cars

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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.

The Miata gives me a new perspective on the world

The Miata: making everything a new experience and turning low-beam headlights into high-beams since 1989. That's what happens when you're basically sitting on the ground, something I've become intimately familiar with when driving our long-term 2016 MX-5 Club. I am not a tall person. Far from it. In most cars I drive, I crank the seat height up close to maximum as soon as I get in. That's easy in the Miata because there's no height adjustment at all. Couple that with the facts that the seat is thin and the car barely hovers off of the pavement, and my eyes end up sitting at the height of most car's exhaust systems. That results in a lot of examining other cars' bumpers in traffic. And one day recently, it almost led to me missing my exit from Interstate 94, part of the route I take every day to work. Everything just looks different from down here – it is quite literally a different point of view from what I'm used to. And then there's the issue of night driving. When you're this low down and stuck in traffic, the headlights of cars following look extremely bright (and incredibly close). They're not, of course, you're just lower than every other driver on the road so it seems like you're staring down high-beams in the rearview mirror. I still love the Miata. It's just not the best commuter vehicle, which should come as a surprise to precisely no one. But when a hole opens up in traffic, the Miata and I are the first to fill it. I just hope the other cars see me. Related Video: Mazda Long-Term Garage Convertible Lightweight Vehicles Performance

Mazda's new Mexican plant capacity rises to 230,000

After the turmoil of last year, 2013 is getting off to a much better start for Mazda. The company has issued a release indicating that the forthcoming plant in Salamanca, Mexico has had its production capacity raised even though it isn't scheduled to go online until March 2014. The original plans called for a 140,000-unit capacity, 90,000 of that allotted for the Mazda2 and Mazda3, the remaining 50,000 for a small car Mazda would build for Toyota that would be based on the Mazda2. The new plans call for raising that by 90,000 units to a total of 230,000 units within two years, by the end of March 2016, and it looks like it will all go toward Mazda production to satisfy growing demand for Skyactiv vehciles. The Mexican plant's opening will be the return of Mazda manufacturing to North America, after Mazda6 production was moved back to Japan last year.
More good news for the company is that it projects 10 billion yen ($114 million) in net income for the financial year that will end in March. That would be a welcome turnaround from the 100-billion-yen loss in the previous financial year, part of a series of three annual losses in a four-year span.
You'll find the press release with the factory update below.