1988 Ford Thunderbird on 2040-cars

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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.

Next Lincoln Navigator to drop V8 in favor of V6, but Ford Expedition might get both

A great many buyers fled from full-size body-on-frame SUVs to car-based crossovers in large measure to save fuel. But that doesn't mean there's still not a buying audience for more traditional truck-based utility vehicles, and those consumers doubtlessly wouldn't mind saving some dollars at the pump, too. According to Motor Trend, those shoppers might be in luck.
That's because the magazine has confirmed that Ford isn't walking away from the full-size SUV segment, and it's poised to do something about its offerings' economy ratings, too. According to MT, global Lincoln director Matt VanDyke has hinted that the next Navigator may drop two cylinders and go with a V6 model - the current model gets just 14 miles per gallon in the city and 20 on the highway from its 5.4-liter V8. The obvious fitment would be Ford's 3.5-liter twin-turbo EcoBoost V6, an engine that has spread like kudzu throughout the rest of the Blue Oval's large vehicle lineup.
Downsized turbocharged engines like Ford's EcoBoost franchise have come under fire as of late for not delivering their EPA fuel economy ratings, but their benefits extend beyond consumption - the 3.5L offers superior power and a better torque curve than the naturally aspirated V8. MT also suggests that Ford's 3.7-liter V6 could form the base engine for the next Navi - it has similar horsepower but a lot less torque than the current 5.4L. That may be less of a problem with the next generation tipped to go on a diet, which could level the playing field somewhat.

Project Ugly Horse: Part V

The Slippery Slope
I've had a healthy appreciation for cars that stop since one truly unfortunate incident with a runaway 1971 Lincoln Continental.
It's funny how quickly a party can turn from, "We're all having blast" to "What happened to the front of the house, and how many stitches do you think this is going to take?" Standing in a Mustang salvage shop in Kodak, Tennessee, I couldn't help but feel I had strayed into the latter territory with Ugly Horse. There was a supercharged 5.4-liter V8 plucked from a rear-ended Cobra sitting off to my left. The shelves were lined with second-hand Roush and SVT components galore, but I couldn't stop staring at a set of rotors with the approximate diameter of my chest.