1983 Mazda Rx-7 Racecar Fb Autocross Hillclimb Drift Project With 13b Turbo on 2040-cars

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Mazda Skyactiv-X Review | The revolution begins with a squeeze-bang

The matte black Skyactiv-X prototype looks like a rough Mazda3, perhaps reconstructed after a bad wreck by an over-enthusiastic owner of a spot welder and lots of gaffers' tape. Ribbed ducts poke out of the dash sending two breaths of conditioned air to no one in particular. Even its revolutionary engine, the thing we're here to experience, is entombed in a massive, nondescript cover to mask its unseemly noises. It's a wild, strange way to meet a very unconventional vehicle that promises diesel-like fuel economy, a wide torque band, and an exotic method for burning less gas than ever before. It takes a few hours for Mazda's engineers to explain the fundamental principles of operation. For more detail, read our Skyactiv-X Spark Controlled Compression Ignition explainer, but here's a very brief overview. Skyactiv-X marries some traditional gasoline engine characteristics with a novel form of compression ignition called SPCCI. The key for Skyactiv-X is to use very high compression in the cylinder and an extremely lean fuel-air mixture. Squeezed right to the cusp of getting hot enough to blow up all on its own (which is very hard to predict), a squirt of extra gas and a spark interject to cross that compression-ignition threshold in a controlled and predictable manner. See the animation below: That takes a few essential components to get just right. One is a massive amount of computer processing power and some pressure sensors in the individual cylinders, because the ambient conditions change how and when these things happen. Skyactiv-X uses a clutched supercharger to pump in additional air when needed to nail the mixture precisely, and high-pressure injectors to get the low ratios of fuel to disperse properly in the chamber. And since it operates like a conventional gasoline engine sometimes, it uses valve timing to lower the very high compression ratio so it doesn't reach combustion ignition in that mode. In practice, the Skyactiv-X runs in compression ignition mode most of the time. In practical terms, that means it drives like a torquey gasoline Skyactiv engine. The torque curve is broad and flat — diesel-like in that respect. That also means it can get away with using a six-speed transmission and a lower final drive for better response. There's enough grunt and economy together that Mazda can let the engine spin faster — at 60 mph, it's running at roughly 1,000 more RPM than a similar gas engine, with greater efficiency.

Meet our new long-term 2016 Mazda MX-5 Miata Club!

We have a new Miata! For a year! And yeah, we're excited about it. This adorable roadster was added to our fleet over a month ago, but we've just now stopped driving it long enough to tell you about it. You can watch our unboxing video for this new long-termer above. (Spoiler alert: The car in the box is a Miata.) Then read a little more about which options and features we chose and why. What we got We chose the mid-line Club model because it's the only way to get the suspension with Bilstein shocks, the limited-slip differential, and a shock-tower brace. Club also includes an appearance package with a front air dam, side sill extensions, a rear bumper skirt, and a ip spoiler for the trunk. We chose Ceramic Metallic paint because it's white and silver and awesome all at once. The only option we chose is the Brembo/BBS Package. In addition to the upgraded brake system and 17-inch wheels alluded to by the title, this package adds Mazda's advanced keyless entry – you can unlock the doors and start the car without taking the key-thing out of your pocket. The MSRP for the car is $32,835. What we skipped The Grand Touring trim (too fancy), the automatic transmission (too few pedals), and extra-cost red paint (not ceramic enough). Grand Touring adds lots of convenience stuff like rain-sensing wipers and auto climate, some active safety systems, and leather. We wanted the upgraded chassis instead, and we' were trying to save some (hypothetical) money. Why we got it Because it's a Miata, and we like fun. The plan is to drive the bleep out of it for a year and report on the experience along the way. We'll take it to a track or two, keep the top down as far into winter as possible, and then slap some snow tires on it to continue . Maybe at a slight angle relative to straight-ahead at times. We'll see. If you have questions about this car, leave them in the comments below and we'll address as many as we can during the coming months. Miata! Related Video:

Live pics of 2014 Mazda3 from NYC, sedan on its way

Here it is, ladies and gentlemen, straight from the memory cards of our own cameras. As you can see, the only version of the 2014 Mazda3 that the automaker is showing off at the moment is the hatchback, but we've gotten confirmation from Mazda that the sedan version will be shown sometime within the next five weeks.
So far, Mazda isn't commenting on whether or not we can expect a higher-performance Mazdaspeed3 version of the car, but we've got our fingers crossed. In any case, we're quite drawn to the appearance of this new hatchback from Mazda, with its flowing lines and character creases setting it apart from the rest of the compact segment in which it competes.
We also appreciate the sound engineering that went into the new 3. Despite boasting a wheelbase that's longer than the car it replaces, we're pleased to see that Mazda has kept its exterior size in check - it's actually shorter overall than the last-gen model - while also reducing weight by about 200 pounds. That's bound to be good for the new 3's dynamic properties.