2005 Mazda Mpv Es Mini Passenger Van 4-door 3.0l 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.

Junkyard Gem: 1990 Mazda 929 S

In the late 1980s, Toyota, Nissan, and Honda were cleaning up in the American market with the Cressida, Maxima, and Legend, respectively. Mazda wanted some of those dollars, so the HC-series Mazda Luce was modified for the US market and sold here as the 929. It had rear-wheel drive, a powerful V6 engine, and lots of luxury features, but not many were sold. Here's a rare '90 that I spotted in a San Francisco Bay Area self-service yard. In 1990, the sporty 929S version got 190 horsepower from its DOHC 3.0-liter V6. Unfortunately for Mazda, American buyers associated the marque with sensible econoboxes and screaming rotary engines, not luxury machinery, at the time. For the 1990 model year, American-market cars were required to have either a driver's-side airbag or automatic seat belts. The 929 had the automatic belts, the less said about the better. The Luce-based 929 became the Sentia-based 929 for the 1992 model year. Meanwhile, the new luxury brands from Honda, Nissan, and Toyota were kicking the crap out of 929 sales; Mazda had planned to launch the Amati brand in the United States, but didn't have the resources to follow through. The last 929s were sold in the United States for the 1995 model year. Related Video: Featured Gallery Junked 1990 Mazda 929 S View 16 Photos Auto News Mazda

2017 Mazda CX-9 offers three rows of turbocharged style in LA

With the introduction of the second-generation Mazda CX-9 at the Los Angeles Auto Show, the Japanese brand now has a stylish, modern crossover to fit just about any buyer's size requirements. And it's more than just a pretty face, thanks to a new 2.5-liter turbocharged engine under the hood. The latest CX-9 has all the styling traits of a modern Mazda with its shield-like grille and narrow headlights. The design execution lacks some of the curvaceous lines of models like the Mazda3, but the CUV gains a tougher look thanks to extra embellishment around its fenders. The interior looks equally attractive with brown Nappa leather and a combination of black and metallic trim. The CX-9 also introduces Mazda's Skyactiv-G 2.5T turbocharged four-cylinder that makes 250 horsepower and 310 pound-feet of torque. Power gets to the road via a six-speed automatic gearbox, and the CUV is available with the company's i-Activ all-wheel-drive system. Customers can also order an array of assistance tech, including adaptive cruise control, lane-keep assist, blind spot monitoring, and more. The CX-9 arrives this spring, but you can get a good look now in the gallery from LA. Related Video: All-New Mazda CX-9 Three-Row Crossover Debuts at 2015 Los Angeles Auto Show - CX-9 offers elevated experience with innovative technologies, new SKYACTIV-G 2.5T engine and premium, authentic materials - When the Mazda CX-9 made its world debut back in 2006, it was an epiphany: A midsize three-row crossover SUV that defied the conventional design cues and cumbersome driving experience expected of vehicles in its class. Despite being a large vehicle, CX-9 is, after all, still a Mazda. CX-9 quickly captivated the automotive industry, winning numerous accolades. Now comes the encore: the latest, grandest expression of KODO—Soul of Motion design yet and the high-end model of Mazda's new-generation lineup. Its cachet is elevated with a proud front fascia that cascades into crisp lines that flow to the rear. Its interior is nothing short of breathtaking, with available Auburn-colored Nappa leather, Japanese rosewood and aluminum. The focus was on authenticity; an experience rather than simply another commodity conveyance. With the new CX-9, engineers sought to instill driving dynamics befitting of a Mazda—agile handling, tight steering and a responsive, controllable powertrain. To do this, they found smart solutions to keep CX-9's structure light, yet rigid, with SKYACTIV Technology.