2005 Ford F-350 4x4 Powerstroke Diesel on 2040-cars

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Diesel Power finds the ultimate modified oil-burner

For nine years, Diesel Power magazine has run the Diesel Power Challenge, this year's grindfest being "a week-long torture test that features seven events, nine trucks, 8,000 horsepower, and nearly 15,000 pound-feet of torque." The road to being crowned "the most powerful truck" starts with a dyno run, and then continues through the completion of a CDL-style obstacle course, an eighth-of-a-mile drag race while towing a 10,000-pound trailer, a quarter-mile drag race without a trailer, a fuel economy test in the mountains and finally a sled-pulling test through a 300-foot-long packed-mud pit.
What kind of trucks get into such a fight? Last year's winner, for instance - who upgraded his truck this year to prove he didn't "luck into the win" - drives a 2008 Ford F-250 Super Duty with a 6.4-liter Power Stroke V8 upgraded with a custom intake, Elite Diesel triple turbos and a two-stage nitrous system. Another competitor has a 2005 Dodge Ram 2500 powered by a 5.9-liter Cummins inline-six, upgraded with Garrett turbos, dual-stage nitrous, a seven-inch exhaust stack and twin fans built into the bed to cool the Sun Coast Omega transmission. The numbers on that truck: 1,255 horsepower, and 2,063 pound-feet of torque at the wheels. Naturally, as the image above might suggest, things don't always end well.
You'll find all five videos covering this years challenge below. A scene in the dyno video sums it all up perfectly: a competitor leaves his nitrous on too long and the crew is treated to some ominous poppings, he leans out the window, throws both hands up and shouts, "Amer'ca!"

EPA says fuel economy test for hybrids is accurate

The EPA says it stands behind its fuel economy test for hybrid vehicles following controversy about the testing process after Ford C-Max Hybrid customers and automotive journalists alike struggled to achieve 47 miles per gallon, the advertised mpg number, Automotive News reports. Ford responded to the issue almost two weeks ago by claiming that a 1970s-era EPA general label rule was responsible for the inaccurate mileage numbers, rerating the C-Max Hybrid's mpg numbers and offering customers rebates. Ford later said it didn't overstate the C-Max Hybrid's fuel economy and that it was surprised by the low numbers.
Ford technically didn't do anything wrong because it was following the general label rule, but agency regulator Christopher Grundler says the automaker was exploiting a loophole when it came up with the hybrid C-Max numbers, and that the testing process remains accurate. The general label rule allows vehicles that use the same engine and transmission and are in the same weight class to share fuel economy numbers, but it doesn't take into account other factors such as aerodynamic efficiency, which affects hybrids more drastically than non-hybrid vehicles. Ford originally used the Fusion Hybrid economy figures for the C-Max Hybrid and claimed the engineers didn't realize that its aerodynamic efficiency would affect fuel economy as much as it did.

Ford Explorer, Expedition next to go aluminum?

Ford made some serious waves when it unveiled the latest F-150. Instead of making its bodywork out of steel, like just about every other truck on the market, Ford went with aluminum. And you can bet the F-150 won't be the last Ford model to go with the lightweight alloy construction, either.
Our compatriots at Edmunds report that Dearborn is considering replacing two of its most popular SUVs with aluminum versions. One candidate is the Expedition, which would make sense considering that the current model (like the two preceding generations and the fullsize Bronco before it) is based on the F-150's underpinnings. Another is the Explorer, which was traditionally based on the Ranger pickup but went with a car-like unibody chassis in its current iteration. If the Explorer does go the way of aluminum, don't expect it to be a part of its very next update, which is likely due too soon for such major changes.
It would stand to reason that, if the Expedition were to go aluminum, so would the next-generation Lincoln Navigator. Ditto the MKT together with the Explorer. But those aren't likely to be the only models in contention for aluminum construction. Like any other automaker, Ford is under pressure to steadily reduce its carbon emissions and improve its fuel economy figures, prompting it to look at a whole range of measures - including more efficient engines, lower rolling-resistance tires, active aerodynamics and lightweight construction. Expect aluminum to play a big part in that equation moving forward.