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Ford finds flex-fuel engine design plays big role in emissions output

How bad is ethanol for your engine? There's been a lot of debate on this issue as the US considers upping the biofuel content in the national gasoline supply from 10 percent (E10) to 15 percent (E15). The ethanol industry and some scientists say higher ethanol blends show no "meaningful differences" in new engines while the oil industry says ethanol creates health risks. Researchers working at the Ford Research and Innovation Center decided to take a closer look at how a wide range of gas-ethanol blends - E0, E10, E20, E30, E40, E55 and E80 - affected the emissions coming out of a flex-fuel 2006 Mercury Grand Marquis. To see the full report, printed in the journal Environmental Science & Technology, requires payment, but there is an abstract and Green Car Congress has some more details. The gist is that, "with increasing ethanol content in the fuel, the tailpipe emissions of ethanol, acetaldehyde, formaldehyde, methane, and ammonia increased." At least NOx and NMHC emissions decreased. The researchers say that the effects are due to the fuel and "are expected for all FFVs," but that the way that a manufacturer calibrates the engine will affect NOx, THC, and NMOG emissions. It's this last bit that's important, since the researchers found, "Higher ethanol content in gasoline affects several fundamental fuel properties that can impact emissions. ... These changes can have positive or negative effects that can depend on engine design, hardware, and control strategy. In addition to direct emissions impacts, higher ethanol content fuel can also provide more efficient combustion and overall engine operation under part-load conditions and under knock-limited higher-load conditions." So, as we head towards more ethanol in our fuel supply (maybe), manufacturers are going to need to learn how to burn it most efficiently.

Report: GM struggling to market turbo technology

In the automotive realm, marketing can sometimes prove just as important as the actual product. Take, for instance, Ford's well regarded EcoBoost technology, which couples turbocharging with direct injection to produce more horsepower and reduce fuel consumption. Would it surprise you to hear that General Motors has had similar technology on the market for over three years?
It's true. GM's first turbocharged, direct injected powerplants hit the market for the 2007 model. The 2.0-liter Ecotec mills put down an impressive 260 horsepower and a matching 260 pound-feet of torque, and they were lauded by the press in the engine bays of the Pontiac Solstice, Saturn Sky, Chevrolet Cobalt SS and Chevrolet HHR SS. But few people outside a core group of enthusiasts actually remember this fact.
Says Uwe Grebe, executive director of GM's global advanced engineering, "We didn't have a badge and say, 'This is the most important thing we will put on all our brochures.'" Ford, however, did just that, and it's EcoBoost engines are right at the tips of all our tongues when we discuss today's most advanced powerplants. So, how does The General fix its mistake?

Ford builds Lightweight Concept with Fusion shell [w/video]

It's a fairly well known fact that removing weight from a car is essentially a panacea for many of the modern automobiles problems. Does it handle like crap? Remove weight. Underpowered? Don't add power; trim the fat. Need to improve fuel economy? It's diet time.
Actually executing a major weight reduction program, though, much like with human beings, is no easy task. Unlike you or I, where motivation is the issue, the prohibitive measure in trimming a car's waistline is money. Lightweight materials are expensive, with carbon fiber and carbon-fiber reinforced plastic still primarily in the domain of higher end vehicles. Even aluminum construction, pioneered on a mass-produced level by Audi and Jaguar, is only now starting to make its way into the mainstream, thanks to the upcoming Ford F-150.
With this concept, though, Ford is attempting to show that a mass-produced, lightweight vehicle isn't too far off. This is the Lightweight Concept, and while it may look like a Fusion, it weighs as much as a Fiesta. For reference, the lightest Fusion available to the public is the 3,323-pound, 2.5-liter model with a manual transmission. A manually equipped, 1.6-liter Fiesta, meanwhile, is just 2,537 pounds.