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2015 Ford Expedition stays the course, adds EcoBoost power

The era of the body-on-frame, fullsize SUV is rapidly vanishing in favor of smaller, unibody crossovers. However, Ford still sees life in the segment with the reveal of the updated 2015 Expedition, now available (solely) with the company's 3.5-liter EcoBoost V6. The new truck will make its public debut at the 2014 DFW Auto Show in Dallas on February 19.
The loss of the previous 5.4-liter V8 in favor of Ford's 3.5-liter, direct-injected, twin-turbocharged V6 engine might rankle some of the Expedition's fans, but Ford claims that the change gives the SUV better fuel economy, more power and increased low-end torque than before. Unfortunately, official engine specifications won't be released until later this year, but Ford says engine output will be similar to the 365 horsepower and 360 pound-feet of torque that this powerplant produces in other applications. The EcoBoost is mated to a six-speed automatic transmission, and the SUV now uses electrically assisted power steering, for an even greater fuel economy advantage. Ford claims this also allows for better maneuverability at low speeds and better feel at high speeds.
Exterior styling is basically unchanged for 2015. The front end has the same three-bar chrome grille and headlight design, but the lower air dam gets added chrome and LED lamps. The rear gets more brightwork on the hatch, and there's a chrome-tipped exhaust pipe. As before, Ford is offering the Expedition in two wheelbase lengths - 119 inches and 131 inches. A new, optional, continuously controlled damping system alters suspension settings constantly based on 46 parameters and offers comfort, normal and sport modes (just like the Expedition's sister, the recently refreshed and decidedly less-attractive Lincoln Navigator).

A cool boost to turbocharger performance

Since the advent of the forced-induction engine, we have been looking for ways to get every drop of performance we can. There are many approaches to getting additional power using better intercooling, water injection, or even adding nitrous oxide. One take on a short instant burst of power is being researched by Mahle and involves providing supercooled air to an engine, which allows it to burn a leaner fuel mixture and produce more power. The supercooling idea is not new and was examined by Ford in 1993 on the Mustang Mach III concept car, then brought up again in 2003 with the SVT F-150 Lightning concept. Ford called its system the SuperCooler; it was designed to work with any turbocharged or supercharged engine equipped with a water-to-air intercooler. The system on the Lightning concept used a small tank of antifreeze that was hooked up to the truck air conditioning compressor. The air conditioning compressor cooled the antifreeze down to about 30 degrees. The other side of the tank was hooked up to the air-to-water intercooler, which usually had a temperature over 100 degrees. Once the antifreeze was circulated from the tank into the intercooler, it would lower the intercooler temperature and provide for a cooler, denser air charge into the engine; the result was around 50 extra horsepower for a burst of about 30 seconds to a minute, depending on the size of the tank. The system for the Lightning was to be offered as a $750 option and would have been targeted towards drag racers and the like, as it could be used for a run down the drag strip and then re-cooled by the time the truck was back in line. The system was fairly non-intrusive – it only weighed about 25 pounds and did not require a new compressor or intercooler. But as with many concepts, it was ultimately scrapped. The technology was always stuck in the back of my mind, but with larger and more powerful engines being produced it could not find its place. With the advent of new fuel economy standards, we have seen small-displacement turbocharged engines pop up and they seem like the perfect candidate for this type of technology. Ford's EcoBoost 1.0-liter three-cylinder turbocharged engine, as used in the Fiesta and Focus, is one such candidate for this technology. It would add a negligent amount of weight but could provide a boost of 10 to 20 horsepower when needed, like merging onto the highway or catching up to traffic.

Ford lowers MPG ratings on six vehicles

Ford has announced that it will be lowering the fuel economy ratings on a number of its 2013 and 2014 model year vehicles after an error was discovered in the company's internal testing data. The EPA has been notified.
Worryingly for Ford, the vast majority of the vehicles affected are hybrids, including the C-Max, Fusion and MKZ in both hybrid and plug-in varieties (where applicable). Also covered as part of the rerating is the entire lineup of 2014 Fiesta engines, with the exception of the ST, including the turbocharged, three-cylinder EcoBoost.
The C-Max was originally rated at 47/47/47 mpg, but dropped to 43/45/40 last year and now to 40/42/37.