1985 Mazda Rx-7 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 Skyactiv-D Wagon

This was sort of a quirky surprise drive opportunity. I've been over here in Italy for a while now, and Mazda Italia contacted me seemingly out of the blue to drive test some version of the Mazda6 with a diesel engine. Supremo. The Mazda6 is a sexy everyday beast and I have been digging their SkyActiv-D engines for a while now. Very spirited units.
My contact phones me the day of, and says he can come by with the car, and then we'll head off to some sort of special spot for dynamics testing and technical conversation. Nice deal, say I.
My guy Ernesto pulls up outside of the house and - lo and behold - it's a dang Mazda6 station wagon with the very most recent 2.2-liter SkyActiv-D motor good for 148 horsepower and healthy 280 pound-feet of torque. The wee four-banger with 14.0:1 compression ratio hauls this 3,260-pound wagon around with the best of them. A decent 0-to-60-mph time of 8.7 seconds, too.

2020 Mazda CX-30 Review & Buying Guide | The new sporty

Is it a sporty crossover? Is it a tall hatchback? However you want to view it, the new 2020 Mazda CX-30 is a compelling new entry that delivers the sort of engaging driving experience and premium cabin environment you get in the company's 3 hatchback, but with the higher seating position of a crossover. Basically, if that Mazda3 had a child with the bigger CX-5, this is pretty much what you'd get, and we have to say it's a pretty good kid.   In terms of size, the CX-30 fits into a niche of in-betweener SUVs that slots between compact models like the CX-5 (plus the Honda CR-V, Toyota RAV4, etc.) and sub-compact ones like the Mazda CX-3 (plus the Honda HR-V, Hyundai Kona, etc.). If you don't have small children, and the car seats and strollers that come with them, it's a size that should make sense. The price is compelling too, especially when you consider the CX-30's high-end cabin and just how terrific it is to drive. With its tautly tuned chassis, communicative steering and sharp throttle response, the best words to describe it are "budget Porsche." Now, we should note that the Mazda3 is even better to drive and pretty much offers the same cabin space, design and quality. We also think it looks better. Nevertheless, people like sitting up high, and the CX-30 definitely satisfies that requirement. What's new for 2020? The Mazda CX-30 is an all-new model. What's the CX-30's interior and in-car technology like? Like the Mazda3 with which it shares so much, the CX-30's cabin makes you go "wow" considering its price and the vehicles with which it competes. Whatever trim level you're considering, the key to this wow factor is how Mazda's new dash design scheme removes visual clutter by reducing switchgear and effectively hiding air vents and door handles. It's then augmented by standard two- or three-tone color schemes – cars with cloth or leatherette vinyl upholstery are accented with black and blue dash/door trim, while those with leather get black and brown. For a car in the $20,000-$30,000 range, it looks and feels special. It's also of a high quality and quite functional. The steering wheel, which looks sensational, is an absolute treat to hold and has intelligently designed buttons/switches for the infotainment and cruise controls. There's considerable center console space, including a configurable under-armrest bin, and a decently sized forward bin for a smartphone.