2004 Mazdaspeed Miata Factory Turbo Limited Edition on 2040-cars

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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

1993 Mazda RX-7 Retro Review | A '90s hero turns 25

Boom times build interesting cars. In the late 1980s, Japan was flush with capital, and automakers spent like the party was never going to end. Suddenly building the third-generation RX-7 — the world's most advanced twin-turbo rotary sports car — seemed like the most natural thing a small car company hailing from Hiroshima could do. On this side of the Pacific, however, there was no context for the sudden influx of unusually tricked-out Japanese hardware flooding American dealerships. And none of the Japanese sports cars of the era was more unusual than the FD-generation Mazda RX-7, imported from 1993 to 1995 (and continuing on in Japan until 2002). Although the island nation's economy was headed on a downward spiral by the end of 1990, Mazda was in no position to pull back and walk away from the development dollars that had already been spent on its latest RX-7. As a result, Americans were able to briefly bask in the glow of one of the most unique engineering experiments ever unleashed on unsuspecting buyers. For its time, the Mazda RX-7 was a spaceship. With fluid lines that screamed "exotic," it joined the NSX in showing that supercars didn't have to have European blue blood running in their cooling systems to elegantly snag eyeballs. The twin-rotor, 1.3-liter 13B-REW situated behind the RX-7's front axle revved all the way to 8,000 rpm on its quest to produce 255 horsepower and 217 pound-feet of torque, with a pair of sequential turbos handing boost duties back and forth around the 4,500 rpm mark. A five-speed manual gearbox was standard with the FD (a four-speed automatic was optional), as was a curb weight in the neighborhood of 2,800 pounds — nearly 500 lbs less than the contemporary Toyota Supra. Significant figures for the era, to be sure. While they might pale in comparison to the average sports car today, slide into the RX-7's cockpit and drive the car, rather than just crunch the numbers. You'll quickly discover what can be accomplished when the company that engineered the Miata pulls a full John Hammond and "spares no expense" developing a world-beating sports car platform. The 1993 Mazda RX-7 I've been loaned from Mazda's classic collection is an R1 car, which means tighter suspension tuning, a few cosmetic upgrades, and a Competition Yellow paint job.

2019 Mazda MX-5 Miata Drivers' Notes Review | A little power goes to our heads

The Mazda MX-5 Miata is nearly 30 years old. The current car — dubbed the ND — is in its fourth iteration and packs a number of updates for 2019, most notably a bump of 26 horsepower and 3 pound-feet over the 2018 model. The car now makes 181 horsepower at 7,000 rpm while redline has been raised to 7,500. That might not sound like a lot, but when you're moving fewer than 2,400 pounds of steel, aluminum and plastic, it feels plenty strong. Our test car was a Soul Red roadster with a brown top, an odd but striking combination. A power-retractable top is available as the Miata RF. This top-tier Grand Touring trim comes with features like automatic climate control, heated seats and leather seats. It might not be the most practical or versatile car on the road, but it might just be the most fun for the money. Senior Editor, Green, John Beltz Snyder: I was excited when I woke up to the Miata covered in snow in my driveway. After all, this tester came equipped with Bridgestone Blizzak winter tires. By the time I could pry myself away from my work and take the car for a spin, though, the snow had mostly melted. I still had fun flinging this around on the cold, wet roads. The first thing I noticed was actually what I didn't notice ... I wasn't wishing for just a little more power, for once. Chalk it up to the conditions, or to the extra 26 horsepower Mazda added for 2019, but this felt appropriately potent. If anything, it's just enough to help get the rear end to wiggle a bit and the tires to more readily chirp in second gear. The Miata, fresh from the factory, has learned to do the cha-cha. Oddly enough, though, my wife, who has been salivating over this generation of MX-5 since the first time I brought one home, has cooled on it a little bit. We went out on a date night, and she was hyper aware of the noise and bumps, and I was, too, frankly. Something about bundling up under an icy soft top can kill the mood of this convertible. In the summer, the sound of the engine and telegraphic feel of the road beneath you blend with the warmth of the sun and the tug of the wind in automotive harmony. It's still fun to drive in the cold, but it doesn't quite turn on the charm like it normally does. Associate Editor Reese Counts: I've spent a lot of time behind the wheel of various NDs over the past few years. The weekend I got married, my wife and I drove a Soul Red roadster from Los Angeles to San Francisco for a brief honeymoon.