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Car Club USA: Louisiana Mudfest

There's nothing quite like mudding. Big tires, huge power, and crazy-wild gearheads that like to throw down on a mud pit almost as much as a thirty rack of Coors. In the latest, and some might argue greatest yet episode of Car Club USA, we head to Louisiana to throw some dirt at Mudfest. As Louisiana's one and only Mouth of the South puts it, "If you don't mud ride... go to Texas I guess." Joining The Mouth and friendly rivals The Most Hated Mud Sluts, we dive in. Beyond the obvious V8 blasting and tractor-tire spinning, those who know best describe Mudfest as, "Good cooking, good friends, good fun, and a lot of partying." It's a motorsport spectacle unlike any you're likely to find up North or out West, though no less impressive to behold. Follow along with the fun, the impromptu drag racing, the trash talking, and the mechanical madness. And find out why, at Mudfest, "if we don't tear it up, we ain't done it right." Each Car Club USA episode features a different car club or event from across the US, where passionate owner communities gather to share automotive experiences and embark on incredible adventures. From Main Street cruises to off-road trails, catch all the latest car club activity on Autoblog. Chevrolet Ford Jeep RAM Truck Off-Road Vehicles Car Club USA Videos autoblog black

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 Ford F-Series Super Duty is class-leading once again

Time for everyone to feign surprise - Ford has just announced that it has the increased horsepower and torque levels of its 6.7-liter Power Stroke turbodiesel V8 engine for 2015. As you'd expect, the Blue Oval is claiming class-leading figures of 440 hp (up from 400) and 860 pound-feet (up from 800), and that's enough to enable Ford's F-450 Super Duty model to tow as much as 31,200 pounds, which, again, the automaker claims is class leading.
Now, it should be noted that the max rating quoted above is achieved with the Ford F-450. The 2015 F-350, which is perhaps a better comparison to the Ram 3500 HD pickup that claimed the towing crown in 2013 at an even 30,000 pounds, is capped at 26,500 pounds, either with a gooseneck or when towing a fifth-wheel trailer. In any case, it's going to take a load the size of Godzilla to make any of the current crop of fullsize heavy-duty pickup trucks break into a sweat. For those keeping track, Chevy rates its 2015 Silverado HD at a maximum of 23,200 pounds.
Ford's newfound pulling power comes courtesy of a larger turbocharger for its in-house Power Stroke engine, new fuel injector tips and, we'd assume, retuned computer controls. Besides the engine enhancements, the F-350 gets a wider front track for 2015 and new front springs, while the F-450 gains commercial-grade 19.5-inch wheels and tires, new rear U-joints, leaf springs, stabilizer bars and shocks. The steering and brake systems have also been upgraded.