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Watch what happens inside a rotary engine

Since it looks like Mazda may very well revive the Wankel rotary engine as a range extender for electric cars, there's no better time to become reacquainted with the quirky internal-combustion engine. And there's hardly a better way to become reacquainted than by peering into a running rotary engine, which you can do with the video above. The video comes to us from the YouTube channel Warped Perception. The channel has already shown what happens inside a conventional internal-combustion piston engine by putting a clear cylinder head on top of a flathead engine. This new video shows off the rotary engine by adding a clear side to a tiny model-airplane engine, something that we weren't aware existed and are glad to know about now. Despite the tiny size, the engine is functionally almost exactly like the bigger versions you'll find in Mazdas from about 1967 to 2012. It has intake and exhaust ports on the edges of the rotor housing, and the triangular rotor swings about in a peanut-shaped housing. For maximum effect, jump to right around the 7:40 timestamp. This is the point at which a bit of acetylene is added to the air-fuel mix for a brighter flame. It's at this point that you can really see when the mixture combusts and how the pressure of the flame pushes the rotor to produce rotational motion. Each stage of the video does slow things down to make everything as clear as possible. Even if you already knew how rotary engines worked, it's still fascinating to watch, first because it's something you don't get to see usually, and also because of the engine's elegant simplicity. Related Video: Image Credit: YouTube / Warped Perception Weird Car News Mazda Technology Videos rotary rotary engine

Mazda brings slick sports-car concept to Tokyo

Mazda teased a slick spots-car concept Wednesday that will debut at the 2015 Tokyo Motor Show. The as-yet unnamed concept promises to blend elements from the company's heritage with a sleek and modern shape. It apparently takes the form of a front-engine, two-door coupe – always a favorite configuration – with a sloping roofline and classic hood-to-greenhouse ratio. It'll be displayed alongside the Koeru concept (which returns home for its Japanese debut), a handful of MX-5 Miatas, and a classic 1967 Cosmo Sport 110S – the marque's original, rotary-powered sports car. We have a good feeling that it's the latter from which the new concept principally draws its inspiration, albeit with different dimensions than the long-tailed original - and hopefully a little RX-7 thrown in for good measure. We'll have to hold on a while longer to find out, but we're looking forward to seeing the finished product. Mazda to Unveil New Sports Car Concept at Tokyo Motor Show -- Japan-debut of Mazda KOERU and racing-spec Mazda Roadsters among fourteen models on display -- HIROSHIMA, Japan, Sept. 29, 2015 /PRNewswire/ -- Mazda Motor Corporation will hold the world premiere of a new sports car concept model at the 2015 Tokyo Motor Show, which runs from October 30 through November 8.*1 A total of 14 models will be on display at the Mazda stand, including crossover concept Mazda KOERU making its first appearance in Japan, two racing-spec Mazda Roadsters (known as Mazda MX-5 outside Japan) and the Cosmo Sport (110S outside Japan), first introduced in 1967. The design of the sports car concept to be unveiled in Tokyo is modern but maintains a sense of lineage and authenticity, appearing almost to condense Mazda's entire history of sports car development into a single model. In line with the company's theme for the Tokyo Motor Show this year, "Accelerate toward our dreams," Mazda will make an appeal for the brand's unique approach to driving pleasure. In addition to the sports car concept, Mazda KOERU will be on display along with new-generation models featuring SKYACTIV Technologies and KODO—Soul of Motion design. A motor sports exhibit will feature racing-spec Roadsters and the Cosmo Sport will complement a heritage display showing Mazda's history of convention-defying engineering.

Cedar Rocket is the fastest all-electric log car in the world

An electric turbine manufacturer, a mechanic, and a log house builder walk into a bar. No, wait. The three are standing around at Barrett-Jackson a few years ago, talking about the world. What's the eventual punchline? An all-electric vehicle mash-up of a Mazda RX-8 and a giant piece of wood. One that was just awarded a Guinness World Record for "fastest motorized log." "Truly, what else would you think of?" - Bryan Reid, Sr. Bryan Reid, Sr., star of the reality show Timber Kings, is the log house builder in the set-up above, and he's now the proud owner of Cedar Rocket. He told AutoblogGreen that a log-based EV is the natural result of the three guys chatting. "Truly, what else would you think of?" he said. "I mean, really? There has to be something to come out of it other than girls. It was crazy, but it's a good story and nobody gets hurt. It's hard to make the news when everything's positive." Idea in hand, Reid and his friend set off to actually build the car. Gerald Overton, the mechanic, turned the Mazda into a welcoming recipient, working on the disc brakes, axles, frame, differential, and suspension. While the presence of a television producer kept things moving, Reid said that it still took almost two years. "It started out, not as a joke, but as something very light," he said. "You put a log on a couple of axles and 'ha ha.' It ended up taking many thousands of hours. We don't do anything halfway." In the end, Reid and the team took the Cedar Rocket to the Wild Horse Pass Motorsports Park in Chandler, Arizona and managed two runs of 55 miles per hour within an hour (that's what Guinness required to hand out the official record). The Rocket is incredibly stable – heavy batteries help there – and Reid pointed out that because the EV uses electric turbines, it's not a quarter-mile car. "It's more like a salt-flat car," he said, because the "turbines that take a while to spin up." Given the right conditions, Reid said the team thinks the Cedar Rocket could go 120-130 mph. "It's crazy because it's different." But the point of this car isn't to just go fast. The builders will bring the car to Barrett-Jackson and auction it off next year, but before that it will make the rounds at places like SEMA and a number of unexpected events, like golf shows. The point is to get attention and raise money and awareness for veterans groups. "I believe it's for the best cause in North America," he said.