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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.

Ford Fiesta ST customs get wild at SEMA

The massive 57-car SEMA showcase by Ford ranges from obvious aftermarket-friendly models like the Mustang, to the not so obvious ones, like the Transit Connect and cute-as-an-explosive-button Fiesta ST. Ford plucked several Fiesta STs for SEMA duty, and we were on the show floor today to get a closer look at some of them.
First up is the striking COBB Tuning and Tanner Foust Racing Fiesta ST (above) finished in a black-and-gray digital camouflage, much like that used in the military, and is meant to raise awareness for the Pat Tillman Foundation. COBB also fitted a three-inch exhaust and a cold-air intake. A new shift knob, carbon-fiber hood and a Kicker stereo round out the mix of upgrades.
MRT got its hands on a Fiesta ST and created a car inspired by Forza Motorsport 5 (below, left). Featuring a two-tone paint job and more performance upgrades than you can shake a stick at, this Fiesta ST is one of the cooler compacts at Ford's stand. A high-performance exhaust system, along with a complimentary COBB induction system, allows the ST to breathe better, while an H&R coil over suspension and Steeda brakes help it stop and turn better than stock.

Ford Focus RS ready to make our hot hatch dreams real

Ford's current hot hatch siblings the Fiesta ST and Focus ST are already two pretty great entries into the segment, but there's always a desire for a little more. Thankfully, it looks like the Blue Oval is ready to satiate that need because it's continuing to test the even more powerful Focus RS around Europe. According to our spy shooters, these shots come from near the Nürburgring.
As with previous photos, Ford engineers continue to heavily camouflage the front end of the RS prototypes, but there's a big difference here. Unlike earlier ones, this example appears to have a closer-to-production-ready front bumper rather than just a horizontal strip for the license plate. That may point to development getting somewhat closer to wrapping up. Although, this one lacks the larger rear wing from prior testers, and the exhaust also appears to be a work in progress with the rear diffuser covered in mesh in these latest shots.
The RS is rumored to be using the 2.3-liter turbocharged four-cylinder from the 2015 Mustang, but power is reportedly turned up from 310 horsepower in the 'Stang to somewhere between 325 hp and 350 hp for the Focus. Routing all that just through the front wheels could be a recipe for serious torque steer, and all-wheel drive is potentially being used for better traction.