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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.

2015 Hennessey VelociRaptor 600 fills an F-150 Raptor-sized void

Ford is rumored to possibly debut a new F-150 Raptor at the upcoming Detroit Auto Show in January, but whether that's the case or not, Hennessey Performance is ready to fill the muscle truck niche now with its latest VelociRaptor 600 Supercharged based on the 2015 F-150. The fantastically named VelociRaptor package has been available on the regular Raptor for the past few years, taking power up to 600 horsepower or more, depending on what the buyer desired. With the latest one, the performance truck is now based on the aluminum-bodied F-150, specifically the FX4 Super Crew model with the 5.0-liter V8. "Having Ford's world-class new truck design, with a weight savings of nearly 700 pounds, our VelociRaptor 600 Supercharged will have an even greater level of performance and driving excitement," said founder John Hennessey in the company's release. The heart of VelociRaptor is the Roots-type supercharger running at 8 psi on the V8. With help from upgraded fuel injectors, a proprietary engine management system and stainless steel exhaust, it boosts grunt from a stock 385 horsepower to over 600 hp. To make sure that power gets to the road, the package also includes 33-inch BFGoodrich mounted on 17-inch Hennessey wheels. For buyers in need of more, the company offers optional parts including an off-road coilover suspension, different front and rear bumpers, a winch, LED light bar and Brembo brakes. Speaking to Autoblog, Hennessey said he feels confident that the latest VelociRaptor could do high-four-second sprints to 60 miles per hour, compared to the outgoing model in the low-five-second range. Prices for the VelociRaptor start at $73,500, which includes the donor F-150, and orders are open now. Actual deliveries should start by March at the latest, according to Hennessey. The company also plans to offer a similar package for EcoBoost F-150s later. Scroll down to read the full announcement about this muscle truck. Introducing the 2015 Hennessey VelociRaptor 600 Supercharged Texas tuner adds power and improved off-road capabilities to Ford's all-new aluminum bodied pick-up trucks December 16, 2014-For immediate release Sealy, Texas-For the past five years, Ford F-150 truck enthusiasts have had the special opportunity to own the SVT Raptor. With 411 hp and baja pre-runner capabilities, the Ford Raptor was one of the most capable 4x4's ever built. Sadly, Ford Raptor production has ended, leaving a void in the market for 2015.

Submit your questions for Autoblog Podcast #319 LIVE!

We record Autoblog Podcast #319 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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