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REPORT: Mazda's next-generation rotary needs more work

Though the rotary engine certainly has its fair share of detractors, many who find themselves behind the wheel of a Wankel-powered machine from Mazda fall in love with the engine's zippy and rev-happy characteristics... including this particular blogger, who purchased a new RX-8 back in 2004. Regardless, nobody can deny that the rotary has always been a thirsty little bugger, especially when compared to powerplants with similarly rated displacements.

We've been hearing for the last few years – and seemingly every other time a new rendition of the Wankel engine came to market – that the next version of Mazda's rotary would address complaints about its high fuel consumption and emissions. Perhaps the early projections about the so-called 16X engine were a wee bit premature. According to Seita Kanai, head of R&D at Mazda:
The 16X demonstrated the possibility, but that performance is not good enough. We are doing R&D which will incorporate more new technology... The 16X is more a profile of a rotary still in our concept stage. It needs more evolution.That really doesn't sound all that confidence inspiring to us. At this point, only time will tell if the 16X will actually be ready for prime time when the long-rumored next-gen rotary-powered car from Mazda hits the scene in 2012 or so.

posted : 11/1/2009 @3:14:40 PM
In the Autoblog Garage: 2009 Mazda RX-8 R3, return of the "hummer"

Hard as it may be to believe, the word "hummer" didn't always bring up visions of obnoxious, polarizing SUVs. In fact, there was a time not so very long ago that uttering that word evoked something entirely different, namely cars powered by Wankel rotary engines. For the past three decades, the world's sole purveyor of rotary-powered automobiles has been Mazda. The "Zoom-Zoom" brand has always been a little different from its compatriots. Back in 1963, a young Kenichi Yamamoto was heading up the research department at Mazda and latched on to the concept developed a decade earlier by Felix Wankel. Just as two-stroke engines were all the rage for a time in the early 1990s and fuel cells in the middle of this decade, the Wankel rotary seemed to be the next big thing in the 1960s and early '70s. For a time it seemed every major automaker had licensed the design from Wankel and was trying to commercialize it. Some like NSU did build rotaries while General Motors and Daimler Benz built an assortment of concept cars. By the mid-'70s, all had given up except Yamamoto-san and Mazda. From the original 1967 Cosmo, Mazda has built an unbroken string of hummers culminating with the recently updated 2009 RX-8 R3. The pony-keg sized power plant isn't the only unique element of the RX-8.
posted : 10/15/2008 @6:51:48 PM

UK to get updated RX-8 starting in late August

Buyers in the U.K. are about to get their first crack at the revised 2009 Mazda RX-8, as the quad-door sportscar officially goes on sale in late August. All RX-8's destined for the U.K. will get the full body-kit that's optional in other markets. We've already seen all the images of the only rotary-powered mass market car in the world that we can stand, so lets move on to what's changed under the skin. Shorter final drive gearing combined with a steeper (numerically lower) sixth gear will allow the high-strung engine to reach its power-band earlier in gears one through five while still maintaining reasonable revs when cruising in sixth. New Recaro sport seats spice up the cabin and 19-inch rims with rotor-shaped spokes add some flair to the exterior.

Though power levels remain unchanged, the Renesis rotary engine sees minor revisions as well, with improved cooling as one main feature. Also updated are the oil metering pump -- all rotary engines ingest oil during normal operation -- and computer software which limits high-speed operation until the velvety-smooth powerplant has reached a proper operating temperature, likely to improve reliability somewhat. All in all, the '09 update of the sports coupe is pretty thorough, though the result is still instantly recognizable as an RX-8.

posted : 7/15/2008 @1:37:12 AM

More proof that Mazda RX-8 owners want to be Ferrari owners

Thanks to an astute reader, we now have further proof that owners of Mazda's rotary powered RX-8 wish they were driving a Ferrari instead. Not that we blame them or anything, as the Prancing Horse has been plastered on many of the finest sportscars that this world has ever seen. What we don't recommend, however, is actually attempting to replicate a Ferrari of your own with a Mazda RX-8, as the owner of said car seen in our gallery has done. It's not that the car is an RX-8, a fine vehicle in its own right,– but a Ferrari it is not. The rotary is a fun engine to wring out on the way to its 9,000 RPM redline, but it just doesn't quite match the aural pleasure that a fine Italian V12 is able to deliver.

This particular Mazda-rrari was caught at a mall in Denton, Texas, and we believe it's probably the only one in existence. Before you get real upset about all that's been done to it though, remember that it could be worse. Much, much worse. Just don't tell the guys in Maranello, they tend to get rather upset about this kind of thing.

posted : 6/15/2008 @2:35:01 PM

Mazda extends rotary warranty on RX-8 to 100k miles

You've got to hand it to Mazda for its perseverance with the Wankel rotary engine design. Ever since it's engineers managed to make it semi-reliable, the turbine-like smoothness of the quick-spinning lump has seen duty in numerous Mazda-branded vehicles, and even a few others as well. Still, despite constant engineering work and updates to the basic rotary engine design, there is a lingering question about the reliability of the design. Most owners seem happy with the engines in their RX, that is, until a seal blows or they forget to keep the oil supply topped up and it fails to restart. Or it floods in the winter, needing a tow. Alright... so there may be a few problems.

To ease the minds of RX-8 owners and owners-to-be, Mazda has reportedly decided to extend the warranty coverage for the 2004-2008 Renesis rotary engine for a period of eight years or 100,000 miles. Mazda even goes so far as to offer reimbursement to those who've spent money on engine repairs before 100,000 miles. This seems like a nice measure made in good faith on Mazda's part. After all, most educated owners of the rotary-powered cars knew what they were getting when these purchases were made, and the engine was already covered under the same basic warranty that comes standard with all Mazda vehicles. Nice work, Mazda.

posted : 6/5/2008 @6:52:15 PM
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