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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.

2019 Mazda CX-5 Turbo Drivers' Notes Review | More power, more love

The second-gen Mazda CX-5 has been on sale since 2017, but the big news for this year is the addition of a new turbocharged 2.5-liter inline-four. The engine — dubbed Skyactiv-G — is shared with the Mazda6 and the Mazda CX-9 three-row crossover and makes 227 horsepower and 310 pound-feet of torque on regular gas and up to 250 hp when running premium fuel. Fuel economy for the new engine is rated at 22 mpg city, 27 mpg highway and 24 mpg combined. The engine is only available with all-wheel drive, but the extra grunt means fuel economy is down from the naturally-aspirated 2.5-liter inline-four (24 city, 30 highway and 26 combined). The new engine is wrapped in the same familiar package we've seen for the past couple of years, but is exclusive to the range-topping Grand Touring Reserve and Signature trim levels. This particular test car was a Signature, which starts at $37,935 before options. For reference, a base, front-wheel drive CX-5 Sport starts at $25,395. Standard features on the CX-5 Signature include 19-inch wheels, LED lighting, rain-sensing wipers, leather seating, heated front and rear seats, a heated steering wheel, adaptive cruise control, proximity entry and push-button start, and a Bose audio system. Options on this Soul Red ($595) model are restricted to accessory items: $70 for a cargo mat, $125 for all-weather floor mats, $400 for illuminated door sills, $125 for a rear-bumper guard and $250 for a retractable cargo cover. The final MSRP comes in just below $40,000. Our contributor Ben Hsu had high praise for the CX-5 turbo in our recent first-drive review. Now the rest of us have had a crack at it. Editor-in-Chief Greg Migliore: I love the CX-5's looks and driving dynamics. It's a sporty Mazda tailored to the crossover segment. This one, done up in Soul Red Crystal Metallic (what a name) and Signature trim with smokey 19-inch wheels, looks great. The Skyactiv-G four-cylinder with 227 hp (on 87 octane) and 310 pound-feet of torque makes for a brisk driving experience. In Sport mode, it's almost more eager than I want it to be. The main downside is the interior. The materials are just fine, and the infotainment is a little clunky to use. It takes a few more moves than I'd like to change the radio station. Also, major demerits for not being able to put a rear-facing car seat in the middle. Considering young families are a target market for this, that is not ideal.

Mazda Miata livery design contest in Forza Horizon 2

If you're into video games, creativity, the Mazda MX-5 Miata and South by Southwest, then there's a contest in Forza Horizon 2 you'll want to know about. Called the Livery Design Contest, your job is to head to Xbox Live sometime before midnight on January 4, 2015 and design a paint job for the 1994 Miata in the game. A panel of judges will evaluate designs for originality, aesthetic design and technical proficiency, and settle on up to five semifinalists who will regroup in the next round, which is public voting. Come January 26, the public can begin voting on its favorite design until February 12, to narrow the semifinal pool down to two. Those two will be flown to South by Southwest in Austin, TX – which happens from March 13-22 – and one of them will be crowned the winner. Said winner will lumber away from the event with $3,500 worth of prizes, including a 55-inch curved-screen television, and their livery will be free to all of the minions playing Forza Horizon 2. There's also a Mazda hub on Xbox Live for everyone to take an in-depth look at the 2016 Miata, if you just like to watch, in which case you may also want to see the related videos joining the press release below. MAZDA TEAMS UP WITH XBOX TO LAUNCH 2016 MX-5 - Mazda MX-5 Livery Design Contest Now Live in Forza Horizon 2 - - Branded hub allows Xbox users to virtually tour 2016 MX-5 and enter MX-5 design contest - Winning design to be featured in Forza Horizon 2 and gifted to all players IRVINE, Calif. (December 4, 2014) – For the second consecutive year, Mazda North American Operations (MNAO) is teaming up with Xbox, this time to promote the launch of the 2016 Mazda MX-5 and give Forza Horizon 2 players the chance to enter the Mazda MX-5 Livery Design Contest. An interactive experience with the 2016 Mazda MX-5 and information on the design contest will be available through the Mazda branded hub on Xbox 360 and Xbox One. The Mazda MX-5 Livery Design Contest, which is now live through January 4, 2015, will give Forza Horizon 2 players the opportunity to design the livery for the 1994 Mazda MX-5 currently available in-game. Two finalists will be awarded a trip in March to South by Southwest 2015 for the final design showdown. The winner will walk away with a new 55-inch curved TV, audio music system, Xbox One Kinect console and one MadCatz Racing Wheel estimated at $3,499.95.