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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

Mazda rolls out unlimited mileage warranty in Canada

Cold weather might be starting to grip parts of Canada, but our neighbors to the north are going to be able to drive their 2015 Mazda cars and utilities from Vancouver to Montreal with a little more peace of mind. That's because Mazda Canada is instituting an unlimited mileage warranty for its new models.
The updated plan starts with all 2015 model year vehicles (even those already sold), and the scheme simply removes that distance limit on everything but the emissions defect coverage. That means that the Mazdas have one year of service adjustments, three years of new vehicle coverage, five years on the powertrain, seven years against corrosion and three years of roadside assistance for as many kilometers as the owner drives.
The change removes at least one, tiny piece of anxiety about buying a new vehicle because it's easy to know when the coverage ends. "By offering our customers an Unlimited Mileage Warranty, we believe it will enhance their ownership experience by alleviating concerns such as kilometre limitations, repair costs and resale value," Kory Koreeda, president of Mazda Canada, in the automaker's announcement.

Mazda 767B crashes during Goodwood, suffers heavy damage [UPDATE]

Update: Autoblog has learned that the Mazda 767B wrecked at Goodwood was being driven by Seniji Hoshino. He was not seriously harmed and was able to walk away from the crash. Hoshino's car was chassis 001 and scored a win in the GTP class of the 1989 24 Hours of Le Mans. A Mazda 767B Group C racer suffered a crash the Goodwood Festival of Speed that tore off the rear wing and did some fairly serious looking front end damage. According to Jalopnik, the racer was taking a timed run during the event's famous hillclimb when it went into the hay bales. The driver is reportedly okay, though. We've reached out to Mazda and Goodwood sources to identify the pilot in question, with no luck so far. Look for an updated post later in the day if we get any answers on that front. Images of the sad wreck seem to be populating on Twitter feeds as we write this. The racing Mazda clearly suffered a big hit today; painful to look at even after the fact. But we're not sure if the damage is beyond the abilities of skilled factory workmen to fix. Our collective fingers are crossed. Mazda has a major presence at Goodwood this year, including the event's art installation. Among all of its vehicles, there are two privately owned 767Bs. These racers have a four-rotor engine, said to be good for more than 600 horsepower in racing trim, and are predecessors to the famous 787B that scored an overall win in the 1991 24 Hours of Le Mans. This content is hosted by a third party. To view it, please update your privacy preferences. Manage Settings.