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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.

1979 Dodge Li'l Red Express in Generation Gap showdown with 1933 Ford Pickup

Auto enthusiasts love a good debate, whether it's Mustang versus Camaro or Ferrari against Lamborghini. But how about a battle between two very different vintages of classic pickup trucks? In this case, the fight is between a 1979 Dodge Li'l Red Express and a 1933 Ford Model 46 truck with a flathead V8.
The shootout comes courtesy of the internet series Generation Gap, and its concept is super-simple. One guy prefers classics, and the other likes newer rides. They choose a category, pick two vehicles and put them head to head. In this case, neither is exactly modern, though. The Ford is more than old enough to receive Social Security checks, and the Dodge is hardly a young whippersnapper.
Other than both being pickups, these two models were made to serve very different functions. The Li'l Red Express was basically the progenitor of today's muscle trucks, with a big V8 that made it one of the quickest new models in its day (admittedly, 1979 was a rough time for automotive performance). On the other hand, the '33 Ford was just meant to work, with little pretense for anything else. One of the hosts describes it as "the simplest, most difficult" vehicle he's driven because of the tricky double clutchwork necessary to shift gears. Scroll down to watch the video and try to decide which of these two American classics you would rather have in your garage.

Ken Block shows us around his Ford F-150 RaptorTrax

From his Fiesta HFHV to his '65 Mustang Hoonicorn, the inimitable Ken Block has some awesome machinery at his disposal. But arguably the coolest of the bunch is the RaptorTrax. Based on the previous-gen Ford F-150 SVT Raptor - the one with the steel frame and V8 engine - Block's back country snowmobile on steroids packs a set of tracks at each corner, a full roll cage, equipment rack, lighting, jump seats, survival gear... everything he could need for a trip off road. The Gymkhana master showcased the beast a couple of months ago on the slopes of Baldface in Nelson, BC, but now he's followed up with a less eye-popping but more informative clip in which he shows us everything his RaptorTrax has to offer. Related Video: