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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 readying dozen+ Mustang models for SEMA

Ford is unsurprisingly bringing a herd of its new 2015 Mustang models to next month's SEMA show in Las Vegas. Over a dozen of them are arriving from top aftermarket outfits like Galpin Auto Sports, Steeda, Roush and others. The Blue Oval isn't just shining a spotlight on the V8 model, though. The new EcoBoost 2.3-liter version with 310 horsepower and 320 pound-feet of torque is also getting its time in the sun.
Among the shined-up ponies will be a showcar helping Galpin celebrate the Mustang's golden anniversary, with the car is covered in the precious metal. The black paint over the body has gold flecks in it, and the wheels, side sills, brake calipers and badges all match, as well. However, it takes more than something shiny to truly impress at SEMA, and Galpin's Mustang also packs a Whipple supercharger for the 5.0-liter V8, boosting the bottom line to 725 horsepower. Take that, Hellcat. There's even a window in the hood to look through, not unlike a Chevrolet Corvette ZR1. The coupe also wears new headlights with LED turn signals that activate in sequence, just like the taillights, and the interior features black-and-gold Recaro seats.
Also set for its SEMA debut is an MRT showcar that takes the EcoBoost Mustang for a gallop with its TKO treatment. The black and orange two-tone car has been designed to incorporate select road racing elements. Mechanical upgrades include 14-inch brake rotors with new ducts, a Vortech air-to-air intercooler and an Air Lift suspension. The Mustang also shows off the company's products for added style and performance including a hood with integrated heat extractors and a unique front splitter.

Submit your questions for Autoblog Podcast #317 LIVE!

We record Autoblog Podcast #317 tonight, and you can drop us your questions and comments regarding the rest of the week's news via our Q&A module below. Subscribe to the Autoblog Podcast in iTunes if you haven't already done so, and if you want to take it all in live, tune in to our UStream (audio only) channel at 10:00 PM Eastern tonight.
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