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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:

Mazda's new turbo four fits in both the 6 and the 3

Despite the size differences, the Mazda CX-9 shares a lot with its smaller car-based siblings, the Mazda6 and Mazda3. That could allow Mazda to slot its full-sizer's new 2.5-liter, turbocharged four-cylinder engine under the hood of its smaller offerings. Pardon us while we do a happy dance. "[The 2.5-liter turbo] fits in a lot of our cars, and where we're actually going to put it is another question," Mazda North America vehicle development engineer Dave Coleman told Australia's Car Advice. Coleman specified that the turbocharged engine will fit in all the same applications that can accommodate the company's 2.5-liter gas and diesel engines. "Basically, that big space we used for the bundle of snakes exhaust manifold, the turbo is in that space too. They're all packaged to occupy the same space. It's exactly the same clearance as the exhaust manifold of the other engines." This kind of logic – if Engine A is the same size as Engine B, then both should fit in Car C – is what's lead us to imagine a turbocharged Mazda6 since the new engine was announced. In short, it's great news. Mazda's 2.5-liter turbo is a hell of an engine in the CX-9, and it's hard to imagine it'd be worse in a lighter vehicle. But just because it works from an engineering standpoint doesn't mean it's going to happen. At least, not soon. "It fits. I'm not a product planner so I don't get to make that call," Coleman told Car Advice. "It's up to the product planners to decide what they're going to put it in." The most obvious application for a turbocharged engine in the 3 or 6 is as a reborn Mazdaspeed model. But don't get too excited – Coleman said Mazda hasn't even gotten as far as building an engineering prototype with this engine. We're still firmly at the theoretical stage. And that's bad news, because it gels with what we've been reporting – that Mazda will wait a generation for future Mazdaspeed models. We just stopped doing our happy dance. Related Video:

Mazda creates reproduction parts program for North American MX-5 Miata

In 2017 Mazda announced a restoration program for the MX-5 Miata in Japan. The good news was that owners of Miatas that looked like they'd been thoroughly enjoyed for decades could get their convertibles returned to as-new condition. The bad news is that the program was a trial for "quality verification," and only open to the Japanese market. At the time, Mazda Japan said it was "considering re-supply of parts that became discontinued" for the first-gen NA series produced from 1989 to 1997. In February this year, the carmaker's then-CEO revealed that "Our fans can be reassured that additional parts, identified by owners and specialty shops, will become available by June of this year." The time has come, Mazda North America announcing a reproduction parts program for first-gen Miatas with a catalog of more than 1,100 new and legacy components.  The automaker says it spoke to Miata clubs and shops to determine which parts were needed most. Among this first salvo will be a fabric soft top using the same rear screen material from the NA series, roller mechanism for the side windows, brake calipers, and a set of aluminum Enkei wheels in the original design that are lighter and boast a better finish. Perhaps even better are the arcane OEM parts that can be desperately hard to source for era-appropriate restorations, like grommets, bolts, gas shocks and the "Roadster" badge that's an eBay go-to (called a "Mascot" on the parts list). Each piece has been redeveloped to take advantage of modern materials and build techniques while maintaining the look of the period-correct original.  The parts list PDF runs to 42 pages. Anyone with a TLC-starved Miata in the garage, the love your jinba ittai droptop has been waiting for is here.