1993 Mazda Rx-7 Touring Roller No Engine Or Trans on 2040-cars

Auto blog

Mazda patents show rotary engine for range-extended EV

Two years ago, Mazda introduced a fascinating range-extended electric car called the Mazda2 RE Range-Extender. It took an electric Mazda2, and dropped in an itty-bitty 330cc rotary engine. It wasn't the rotary-powered sports car we had hoped for, but it seemed like a unique way to keep the quirky engine alive and kicking. But not long after the car's reveal, it seemed to disappear. Now the basic idea has resurfaced with a few modern updates in a couple of US patents. The first patent is pretty straightforward and describes a range-extended EV similar to the BMW i3. At the front is an electric motor driving the front wheels. At the back is an internal combustion engine that powers an electric generator. In the middle is a lithium-ion battery for storing and delivering electricity. It's the same set-up as that Mazda2. The second patent is for an engine start-and-stop system, but specifically for rotary engines. The system is designed to shut off a rotary engine when not needed, much as modern piston engines do. It also stops the rotor in a position that closes the intake port to ensure no fuel or exhaust emissions slip out through the intake tract. This is necessary since there are no valves in a rotary, and air and exhaust come through ports that are "opened" and "closed" by the rotor itself. The patent also describes the possibility of firing a spark plug after the fuel has been cut to eliminate any leftover fuel emissions. This system would theoretically improve a rotary engine's fuel economy and emissions significantly, which would be a boon as those are two of the rotary's major weaknesses. The rotary-engine patent also includes the same range-extended powertrain drawing as the first patent. It's there as a description of a possible application. And in such an application, where the rotary wouldn't have to run all the time, the system could take advantage of the rotary's inherent strengths. Weight can be kept low thanks to the engine's small dimensions, which should help in keeping the car sprightly and efficient. Rotaries are renowned for smoothness, too, so it shouldn't need too much refining and sound deadening, the latter of which adds more weight. The small size would also help with packaging, leaving more space for people, cargo, or possibly batteries. And since it has been patented, the company may be looking to bring the system to market.

Mazda Raceway gets first new MX-5 Cup as pace car

Mazda's motorsports department officially finished the first example of its new MX-5 Cup racer. But while the rest of the fleet will be used in the Global MX-5 Cup championship, this initial unit has been designated for another purpose. It's been dedicated to serve as the new pace car for Mazda Raceway Laguna Seca. Based on the latest ND-generation MX-5, the Cup racer was previewed in racing spec this past November ahead of its debut at the SEMA show. Though we've still yet to see the final spec sheet, it clearly benefits from key upgrades to the rolling stock, not to mention the added roll cage, racing buckets, and more. The pace car also features emergency lighting and a livery designed by Mazda and applied by Sticky Fingers Design out of Huntington Beach, CA. The beefed-up little roadster will join a cadre of pace cars used at the legendary Northern California circuit. Other pace cars in the fleet include a Mazda6, RX-8, CX-5, and the previous Miata. The season is winding to a close at Laguna Seca, with the Pirelli World Challenge finale and Mazda Road to Indy still set to take to the track next month. Related Video: MAZDA RACEWAY IS READY TO PACE THE FUTURE MONTEREY, Calif. (August 13, 2015) – Mazda Motorsports used the annual car-fest known as the Rolex Monterey Motorsports Reunion to roll out the first production 2016 Mazda MX-5 Cup race car. This particular vehicle is guaranteed to lead races as it will be the newest pace car in the Mazda Raceway Laguna Seca fleet of Mazda safety vehicles. The 2016 Mazda MX-5 Cup race car follows a 26-year history of the MX-5 Miata in motorsports. The first race cars to be sold to customers will be used in the 2016 Global MX-5 Cup, known in the U.S. as the Battery Tender Mazda MX-5 Cup. With the 2016 racing season still many months away, placing the first production race car into pace car duty allows Mazda to gather additional durability data while showcasing it in front of one of the most influential motorsports crowds of the year. "For Mazda, this weekend is the perfect blend of past, present, and future," noted John Doonan, director of motorsports for Mazda North American Operations. "We are celebrating our motorsports heritage on the track with our vintage race cars.

2017 Mazda CX-9 packs turbo power, fresh style

After nearly a decade of sales, Mazda finally introduces the second-generation CX-9 crossover. It delivers a comprehensive interior and exterior overhaul, blessing the CX-9 with a powerful, efficient Skyactiv powertrain, and instilling even more of the sporting character that makes Mazdas so darn charming. Like every other vehicle in Mazda's catalog, the CX-9 now wears the handsome, suave stylings of the company's Kodo design language. We think it looks great, but feel free to disagree in Comments. The second-generation CX-9 is the perfect example of Mazda's growing interior design prowess. As is so often the case, it's not so much the style but the choice of materials that stands out. Nappa leather can be paired with real Japanese rosewood and aluminum accents to craft a cabin that feels far more expensive than what you might expect from Mazda. The quality is impressive, even on the pre-pre-production prototypes we tested (drive impressions coming soon). The other headline, aside from the gorgeous interior, is the powertrain. The heart and soul of the operation is a new 2.5-liter, turbocharged Skyactiv engine. Although it only produces a modest 250 horsepower, that figure is complemented by a whopping 310 pound-feet of torque. Importantly, torque is easy to access in the lower part of the rev range, with peak twist coming in at just 2,000 rpm. It drops off rather suddenly north of 4,000 rpm, but as Mazda tells it, most consumers rarely venture above that figure. Mazda expects the CX-9's core market to be perfectly happy with the robust low-end output. A six-speed automatic is responsible for doling out that grunt, and is meant to play nicely with the same i-Activ predictive all-wheel-drive system found in the CX-5 (although the two cars don't share any AWD components). Using 22 different sensors, the system measures road conditions 200 times every second and will even send up to half the engine's power to the rear axle. The entire car, meanwhile, rides on the same Skyactiv architecture as the CX-5 and Mazda6, meaning a multi-link rear suspension has been paired with MacPherson struts up front. Eighteen-inch wheels will be standard, although 20s will also be on offer. You can expect to hear much more on just what the new CX-9 is like to drive next week. Until then, enjoy the official images from Mazda, and keep an eye open for live shots from the LA debut, headed your way soon.