1999 Mazda Miata Manual Transmission Runs Great No Rese on 2040-cars

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Mazda hard at work on Skyactiv 2 engine technology

As Mazda continues the current rollout of its still-new Skyactiv technology, the automaker is already looking at improving its family of engines for even better fuel economy and emissions reductions. Automotive News reports that with stricter fuel economy and emissions regulations planned for 2020 and 2025 in Europe, Mazda will likely release engines with next-generation Skyactiv 2 technology by the end of this decade, and Skyactiv 3 units just five years later.
The latter is expected to focus on improved engine cooling and lessening energy losses, but the big news in AN's report is that the next-gen Skyactiv 2 engines will use Homogeneous Charge Compression Ignition, or HCCI. This type of ignition is very similar to how a diesel engine operates (with high compression and using the compression stroke for fuel combustion rather than spark plugs), a method said to provide a cleaner and more efficient fuel burn - to the tune of a 30-percent improvement in fuel economy compared to current Skyactiv engines. Other automakers, including Hyundai, have already announced they are developing HCCI powerplants with similar technology and characteristics, so Mazda likely won't be a lone wolf here.
Equipped with HCCI technology, Mazda figures to be able to compete with larger automakers in terms of fuel economy and emissions without resorting to hybrid powertrains, continuously variable transmissions or automatics relying on more forward gears (eight or more) for optimal efficiency. Some of the challenges of HCCI, according to AN, include the need for better engine cooling, risk of misfire at high and low rpm and uneven engine performance based on fuel properties.

Junkyard Gem: 1991 Mercury Capri XR2

Just a year after the Mazda MX-5 Miata first went on sale in the United States, Ford's Mercury Division began selling a similarly-priced two-seat convertible here. This was the 1991-1994 Mercury Capri, and I've found an example of the hot-rod turbocharged version in a northeastern Colorado car graveyard. The Capri name has an illustrious history within the Ford Empire. First used on a Lincoln in 1952, it went on to serve as the name for a hardtop version of the early-1960s Ford Consul in the UK, then as the designation for a low-end trim level on the 1966-1967 Mercury Comet. Starting in the 1969 model year in Europe (1970 in North America), Ford began selling the best-known Capri of all: a sporty coupe based on the Cortina, sold through Mercury dealers in the United States but never badged as a Mercury here. Sales of that Capri halted here after 1978 (they continued through 1986 in Europe), but the Mercury Division then moved the name over to its version of the 1979-1986 Ford Mustang. After that, Ford Australia took the Capri name for a new Mazda 323-based sports car beginning in 1989. Then Dearborn decided that an Americanized version of the Australian Capri would be a success on this side of the Pacific, and left-hand-drive Capris began showing up in American Mercury showrooms in late 1990. Today's Junkyard Gem is one of those first-model-year cars, and it's the very rare turbocharged XR2 version. While this car was intended to be a competitor for the Miata, it's really that car's Mazda cousin. Both cars got their power from 1.6-liter versions of Mazda's versatile B engine, though the Capri had the same front-wheel-drive setup as its 323/Protege (and Escort/Tracer) platform siblings. At the same time, Ford was selling Kia-built Mazdas with Festiva (and, a bit later, Aspire) badging, alongside Mazda MX-6s with Probe badges. Just to make things interesting, American Mazda dealers were selling Ford Explorers as Mazda Navajos, while Rangers with Mazda badges followed starting in 1994. The 1990s were Mazda-riffic times at Ford! This car wasn't the first Australian-designed, Mazda-based Ford product sold in the United States. That honor belongs to the 1988-1989 Mercury Tracer, which was based on the same Mazda 323 platform as the Capri and built in Mexico. Later on, the Tracer remained a member of the 323 chassis family but was a nearly identical twin to its Ford Escort sibling.

Mazda's next-gen SkyActiv engines will drop spark plugs in favor of high compression

Homogeneous charge compression ignition, or HCCI, is the black art of internal combustion engines that aims to produce diesel-like fuel efficiency for the cost of gasoline. Although some of its competitors have developed and subsequently given up on the tech, Mazda confirmed that the next-generation of SkyActiv engines will employ HCCI technology, improving fuel economy by 30 percent and at the same time reducing exhaust emissions. According to Nikkei, a new SkyActiv family of engines is set to debut under the hood of the next-gen Mazda3 sometime in 2018 before making its way into other vehicles. In simple terms, an engine that uses HCCI burns the air/fuel mix using pressure instead of with spark plugs, just like a diesel. At 14:1, Mazda's gasoline engines already have some of the highest compression ratios out there, but a move to HCCI means cranking up the compression to 18:1. While the tech sounds relatively straightforward, using HCCI means dealing with a number of side issues. It's one of those "on paper" ideas that compounds problems when put into practice. Heat, revs, and fuel must all be carefully managed as gasoline doesn't burn the same way as diesel. Mazda is mum on details, but the automaker seems confident that the issues have been sorted. If the new engines do indeed make it to market with HCCI, Mazda will have out-engineered GM, Daimler, and Hyundai, all of which have tried and failed to develop HCCI engines in a cost-effective package. With the market moving towards electrification, it's interesting to see Mazda still focusing so heavily on traditional internal combustion gasoline engines. It's an indication of where they see the market heading for the next few years. Although the automaker has been hesitant to move forward with hybrid and electric powertrains, Nikkei also reports that Mazda will begin mass production of EVs in 2019. Related Video: