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Mazda rotary engine returning in 2019 as EV range extender, exec says

It seems that a range-extended Mazda electric car with a rotary engine is for real, and coming sooner than expected. An automotive news outlet from the Netherlands called AutoRAI spoke with Mazda's European vice president for sales and customer service. He told the outlet that Mazda has an electric car coming In 2019, and it will be available with a rotary engine as a generator. Among the details about this car and its powertrain, he said it would be similar in size to the Mazda3, and it might even be a crossover. It will also be based on Mazda's upcoming modular small car platform. The rotary engine will only generate electricity and will only have one rotor. Not only that, it will be mounted horizontally. This is particularly unusual as every rotary Mazda has had the engine mounted upright. We've reached out to Mazda representatives in the U.S. and Europe. An American representative couldn't comment on what type of range-extender options may be coming in the future. We say this specifically because Mazda has confirmed previously that an EV with an available range extender is coming in 2019. We have not heard back from a European representative at the time of publishing. Despite this, a return of the rotary as a range extender looks probable. Besides the dates fitting with Mazda's electric plans, there are other tidbits from the past that support the idea. Mazda has been experimenting with the idea for years, and even created a functioning Mazda2 EV with a rotary range-extender. The company has also filed patents in the U.S. for the setup as recently as last year, and there have been other recent rumors. Related Video: Featured Gallery Mazda RX-Vision Concept: Tokyo 2015 View 11 Photos Image Credit: Autoblog Auto News Green Rumormill Mazda Technology Emerging Technologies Electric Mazda rotary mazda ev rotary range extender

Mazda engineer wants new rotary to be turbocharged

Hope springs eternal for Mazda to revive the high-revving Wankel engine for a new sports car, and the company keeps feeding that thirst with hints that it could happen. To make the possibility even more tantalizing, Mazda drivetrain and powertrain assistant manager Tetsushi Marutani tells Motoring that he wants the updated mill to pack a turbocharger. "Personally, I think that a rotary with some turbo or compressor would be good," Marutani said to Motoring. "Because a rotary, in my opinion, they require more [torque at] low speed, low down torque. So if we have some small compressor or turbo it would help." Mazda hasn't sold a rotary-powered model since the RX-8 and hasn't had a turbocharged one since the third-generation RX-7. However, the recent RX-Vision concept (above) at least hinted at a possible Wankel revival, and Mazda officials confirmed that its engineers continued to develop the engine since the RX-8's demise. The RX-Vision used a next-gen rotary called the Skyactiv-R, but Mazda didn't officially confirm any details about it. Rumors suggested the engine had a two-rotor layout with a total displacement of 1.6 liters. A two-stage electric turbo and hybrid powertrain would allegedly boost the total output of around 450 horsepower. The electric assistance could also counter the Wankel's lack of torque at low revs and poor fuel economy. Those rumored specs sound fantastic, but we still take the rotary's return with a grain of salt. Mazda CEO Masamichi Kogai is adamant that it's not worth the company's limited resources to develop a niche sports coupe instead of better selling vehicles. Related Video:

Confirmed: Mazda Miata gets more power, higher redline, telescoping wheel

Our friend over at Road & Track, Bozi Tatarevic, has a keen nose for stuff just like today's Miata news, and he spotted an article by the Japanese car magazine Car Watch that details Mazda's upcoming updates. Car Watch actually got to drive the car, too. There's a lot to go through, but the highlight has to be confirmation of what we told you earlier this year about a significant power bump: The Miata will indeed get an increase of 26 horsepower, from 155 to 181. But the power's not the whole story. Mazda has increased the redline from 6,800 RPM to 7,500. It's not clear at this point where torque and power peaks are in the rev range, or how these changes affect low-speed drivability, but more revs are almost always a good thing and aren't likely to detract from the roadster's fundamental goodness. Car Watch reports that lighter pistons and connecting rods are fitted to help reduce rotational mass in the 2.0-liter inline-four. Some valvetrain changes were needed to support the higher redline, mainly stiffer valvesprings to prevent valve float. Mazda also changed the shape of the valves and optimized the intake ports to breathe better at higher RPM. The inner diameter of the exhaust ports were increased to flow better through a new muffler better tuned to the engine's new operating range. This confirms and gives a little more detail to what we reported earlier based on a leaked document from Mazda Canada. Car Watch also confirms that the revised Miata will get a low-inertia dual-mass flywheel, which should help absorb some vibration, noise and harshness from the higher-revving engine without losing too much of the directness that a single-mass flywheel provides. Mazda usually gets stuff like this right, so while we won't know until we get a chance to drive it whether the DMF feels "right," we're not too worried about it. There's also a telescopic steering wheel, a first in any Miata, which has a range of about 1.1 inches. That doesn't sound like much, but it should help folks with longer legs reach the wheel without having to crank the seat forward. Interestingly, Car Watch reports that the telescoping wheel was opposed by some in the company seeking to save every fraction of an ounce of weight, and to get it through, the company apparently had to change some of the material in the upper steering column from steel to aluminum to satisfy the weight-conscious. Little details like these are fantastic.