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Patent application suggests Mazda rotary return

A recent patent application by Mazda reveals that the Japanese automaker is still working on the rotary engine. This could in fact be the Skyactiv-R engine found in the RX-Vision concept from the 2015 Tokyo Motor Show. As with anything Wankel-related, nothing is certain until Mazda makes a production commitment. But this filing suggests that serious development is happening in Hiroshima. The 2011 Mazda RX-8 was the last rotary-powered car you could buy in America. Slow sales, poor fuel economy, and tighter emissions standards prevented Mazda from committing to a follow-up. But the fundamental principles of the rotary - compact size and light weight - perfectly fit Mazda's Skyactiv ethos. (For an explanation of how rotaries work, click here.) In this new engine the intake port sits at the bottom of the engine with the exhaust port on top instead of the other way around. That allows for lower mounting, which improves a car's center of gravity. This rotary is also turbocharged. Putting the turbo up high helps ensure it doesn't get in the way of any body or chassis crossmembers. The implication of those claims is that somebody is thinking about how to put this engine in a car. There are other benefits as well. The short path from the exhaust port to the turbo ensures minimal turbo lag. It also allows for a close-mounted catalyst on top of the enigne, which will help emissions. Another innovation in this new engine is a triangle-shaped rotor that covers part of the exhaust port. This allows for different exhaust flow characteristics. The filing claims that that two of the four orientations allow for less airflow resistance in the exhaust port. As in previous Mazda rotaries, there are two spark plugs to manage ignition timing and combustion. But unlike in the 16X concept, Mazda's last public display of such an engine, the new rotary uses port fuel injection. Keep in mind this is only a patent application. A Mazda spokesperson refused to comment on future product, but commented "As we stated at the Tokyo motor show, Mazda is doing all that it can to bring a rotary to the market." In the meantime, keep your RX-7 prayer candles lit and hope for the return of the rotary before the end of the decade. You can bide your time by reading the entire application here. Related Video: Related Gallery Mazda RX-Vision Concept: Tokyo 2015 View 11 Photos News Source: USPTO via autoevolution Rumormill Mazda Performance rotary mazda rx7

Petrolicious lets a 1971 Mazda RX-2 howl

Rotary engines scream to the heavens in the best way possible. To hear a wonderful example of the Wankel's battle cry, turn up your speakers and watch Petrolicious highlight an immaculately clean 1971 Mazda RX-2 in Australia. Owner Jason Humble took three years to build his RX-2 from a bare shell, and he started competing with it in vintage racing in 2005. The little coupe's class pits it on track against Mustangs and Camaros, but Humble claims that he's regularly near the top of the pack thanks to the Mazda's communicative chassis. We don't get to see the RX-2 mixing things up on track in the Petrolicious video, but Humble does treat us to a drive through the Australian countryside. He's happy to let the coupe's rotary rev, and the little engine is capable of making a wonderful noise. It's great to see Petrolicious continue to give the spotlight to these sometimes overlooked classic Japanese sports cars.

Refreshed 2017 Mazda 3 and 6 get G-Vectoring Control

Back in June, we told you about Mazda's G-Vectoring Control system, which is an additional layer of unobtrusive cornering assistance to help maintain traction at the limits of adhesion. It's subtle to the point of being hard for a human being to detect, even a Mazda engineer, as we found out driving a G-VC equipped Mazda 6 around Mazda Raceway Laguna Seca. We knew then that the G-VC system would make it to the 2017 Mazda 3 and 6, but now all the details of both mildly refreshed cars are available. Let's start with the Mazda 3, which has a few more changes than its larger stablemate. As is standard industry practice, a mild facelift includes available LED headlights and taillights, a new grille, and a monochrome rear bumper. Inside, the slightly recontoured steering wheel now has available heating and the manual handbrake has been replaced by an electronic one. Fans of handbrake turns will frown, but those handles take up an immense amount of room (relatively speaking) inside the center console. The redesigned center storage bin takes better advantage of that newly freed-up space. Lastly, Mazda claims the 3 is quieter thanks to improved insulation and weatherstripping. The Mazda 6 was just refreshed last year, so the list of changes is even shorter. The larger sedan benefits from similar sound-reducing tweaks as the 3, and the entry-level 6 with a manual transmission now comes with the Mazda Connect infotainment system, a real upgrade from the older non-touchscreen system. One thing that both share is an available full color head-up display, which replaces a functional but ancient-looking monochrome unit. If you've been in a Mazda currently on sale with this old-looking system, you'll really appreciate the way this new one looks. We can't wait to try it out. Both new Mazdas go on sale in September. Pricing isn't available at this time. Related Video: Featured Gallery 2017 Mazda3 Unveiling View 15 Photos Related Gallery 2017 Mazda6 Unveiling View 14 Photos Related Gallery 2017 Mazda3 View 36 Photos Related Gallery 2017 Mazda 6 View 33 Photos Image Credit: Live photos copyright 2016 Drew Phillips / Autoblog.com Mazda Hatchback Sedan mazda 3