Silver Stone Metallic 1990 Mazda Miata Mx5 Convertable Automatic Ac on 2040-cars

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Mazda files patents for a sequential twin-turbo setup

Mazda has a history of interesting engine technologies, from yesterday's rotary engine to tomorrow's compression ignition engine, and new patents show it still may have some internal combustion tricks up its sleeve. The one on display in these patents isn't especially new in concept, though. A sequential twin-turbocharger setup is something Mazda itself used on the third-generation RX-7. But it's something we haven't seen much of lately. It looks like it could have some possible advantages over older sequential systems, and it has some potential advantages for enthusiasts. First a quick and dirty primer for what makes a sequential twin-turbo system distinct from other twin-turbo systems. In many twin-turbo engines, there are simply two turbos that work together as one bigger turbo. They're the same size, and they spool up at the same time. With a sequential setup, at low rpm, a smaller turbocharger is spooled up first at low-rpm for quicker throttle response, and as the rpm and exhaust pressure increases, a valve opens up that allows a larger turbocharger to also spool up and provide high-rpm boost. That's basically how the Mazda design shown above functions. A big flap blocks off the larger turbocharger exhaust inlet, channeling all the exhaust to the smaller turbo. When more exhaust is available at high rpm, it looks like that flap opens up to spool up the big turbo, too. What's interesting here is that the way the turbochargers are packaged takes up less space than past systems. It looks like both turbos are contained in one unit that shares the same exhaust outlet, meaning the exhaust manifold could be kept simple and compact. In fact, the piping for compressed intake air could also be shared, reducing the amount of piping, which would further decrease the amount of materials and possible failure points. There are a number advantages of making this system smaller. The potential applications of the system are much greater, since it could fit in smaller cars with smaller engine bays. Making the system smaller also means that there won't be as much weight, which is important from both fuel economy and performance standpoints. Finally, the smaller setup likely uses fewer materials, which could make the system cheaper and thus easier to offer on a wider range of vehicles, or at least more profitable for Mazda.

2014 Mazda6: July/August 2013

Our newest long-termer - the Soul Red 2014 Mazda6 seen here - arrived in my driveway at the end of June. Without hesitation, I immediately put it to work as a daily driver, carpool bus and family vacation sled, and it accomplished all of those tasks with aplomb. Now, more than 4,000 miles down the road, I am left convinced that Mazda's latest midsize sedan is one of the best in its segment.
During the past 60 days, I have subjected the Mazda6 to scorching travel across Southwestern deserts, wheezing climbs over 8,000-foot-high Sierra Nevada mountain passes and basking in the cool ocean breezes of Malibu. It traveled with four passengers and a full load of luggage from Los Angeles to Lake Tahoe, and it braved the bumper-to-bumper freeway congestion on a weekday trip down to San Diego. It accomplished everything that was asked of while hardly skipping a beat - it has only required a regular sip of unleaded fuel to keep it moving forward.

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.