Tag: Wankel

By on April 25, 2014

01 - 1979 Mazda RX-7 Down On the Junkyard - Picture courtesy of Murilee MartinFirst-gen RX-7s aren’t uncommon in wrecking yards in the western part of the country, as demonstrated by this ’79, this ’80 with incredibly of-its-time custom paint, and this fairly solid ’85. In fact, I don’t bother to photograph most of the examples I see. Today’s ’79, with its brown-and-beige tape stripes, seemed worthy of inclusion in the Junkyard Find series, though. (Read More…)

By on November 19, 2013

Wankel-1

Plans for a ressurected rotary engine appear to have hit a snag with Mazda CEO Masa-michi Kogai claiming that the required volumes for commercial viability are unrealistic.

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By on September 18, 2013

06 - 1979 Mazda RX-7 Down On the Junkyard - Picture courtesy of Murilee MartinFirst-gen Mazda RX-7s aren’t difficult to find in self-service wrecking yards (we just saw this ’80 with Flashdance-grade custom paint and this fairly solid ’85), and so most of them don’t make it into this series. During my recent trip to California for the biggest 24 Hours of LeMons race in history, I stopped at one of my favorite East Bay wrecking yards and found this utterly rust-free example of one of the few bright spots of the Malaise Era. (Read More…)

By on November 20, 2012

First-generation RX-7s aren’t uncommon Junkyard Finds, even though the youngest ones are 27 years old now. However, not many full-on early-to-mid-80s custom paint jobs show up at junkyards these days. Here’s one I found in Denver last week. (Read More…)

By on August 29, 2012

The rotary engine and Mazda have had a tumultuus, on-and-off relationship that rivals an Old Hollywood marriage. Market conditions and government regulations have made mass production of the rotary a constant challenge, and the death of the Mazda RX-8 looked like the final nail in the Wankel’s coffin.

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By on August 16, 2012

Back when I reviewed the final Mazda RX-8, I ranted on at some length about my envy of my RX-7-driving college classmates who were the rich sons of high-ranking South Vietnamese military officers and government officials. Still, except when I was shopping for a Mazda rear end for my 20R Sprite Hell Project, I haven’t paid much attention to the many RX-7s I’ve seen in wrecking yards over the years. First-gen examples aren’t uncommon even today; here’s an ’85 I found in a Denver yard last week. (Read More…)

By on June 26, 2012

Mazda is set to build the final RX-8, bringing a temporary end to the rotary engine, which powered its flagship sports cars for 45 years.

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By on October 7, 2011

Mazda confirmed what the world had known for more than a year: Its iconic, Wankel-powered RX8 is going to die. “Mazda RX-8 production will end in June 2012 ,” says a Mazda statement. Mazda celebrates the end of an era in style.  The Hiroshima company lays on a Mazda RX-8 SPIRIT R special edition that will keep the spirit alive after the RX8 has given up its ghost.

Whither the Wankel? (Read More…)

By on August 8, 2011

Though the next-generation of Mazda’s rotary engine has been in development since 2007, and has been the subject of several TTAC Wild-Ass Rumors, WardsAuto reports that the unique engine design could well be reaching the end of its life.

Kiyoshi Fujiwara, Mazda executive officer-product planning and powertrain development, says there is “huge discussion” within the Hiroshima, Japan-based company whether to continue on with a rotary engine.

Fujiwara says economic hardship has some top brass looking for programs to cut, and that the engine program is on the list.

Continuing development of the rotary has been halted for now, but he hopes it will resume in the future, noting the technology is a part of Mazda’s DNA.

Without identifying what exactly they are, Fujiwara says three major problems were identified with the current generation of rotary engine, but that two of the three have been overcome. Still, Mazda says that only one thing will save the rotary engine at this point: success with Mazda’s new suite of SKYACTIV technologies. If these fuel-saving measures spark new interest in the Mazda brand, says Fujiwara, then Mazda might have enough cash to invest in its rotary engine. Alternatively, a Mazda-developed Wankel engine could be used as an electric range-extender. In any case, don’t expect a new Mazda rotary before 2017… if ever. Here’s hoping Mazda is able to keep this unique, distinctive drivetrain alive for future generations of enthusiast drivers.

By on June 27, 2011

Having seen its RX-8 banned from Europe for flunking emissions tests, Mazda may be going to extreme lengths to improve the efficiency of its next-gen rotary engine (codenamed 16x) which has been in development since 2007. Autocar reports

The 16X’s capacity has been raised from 1304cc to 1600cc, and it is also physically smaller and partly built from aluminium. The changes are designed to improve two of the biggest issues with rotary engine performance: fuel economy and torque delivery.

The Mazda source said the new engine “needed a smaller hole on the wall [of the combustion chamber]” as a result of eliminating the space-hungry normal spark plug. He also admitted to Autocar that the use of laser ignition “was absolutely possible”.

Recent advances in Japan have created high-power lasers made from ceramics that measure just 9mm in diameter and 11mm in length, easily small enough to fit into a car engine.

Not only would laser ignition allow the 16x to burn leaner, it would also allow more precise control of ignition points and timing. More importantly, it would cement the Wankel rotary’s status as the least-necessary, most overly-complex and thoroughly awesome engine ever created. And they say emissions standards always make cars less interesting…

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