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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.

NHTSA investigating 250k F-150s for possible power brake failure

The National Highway Traffic Safety Administration is opening a preliminary evaluation into the 2011-2012 Ford F-150 with the 3.5-liter EcoBoost V6 because of potential failure of the power braking assist. If a recall is required, it could affect an estimated 250,000 of the trucks. This investigation is prompted by NHTSA receiving 32 complaints about the electric vacuum assist pump allegedly failing in these trucks, which then causes the power braking assist to stop working. Drivers claim having no warning beforehand. There are also two reports of crashes that are purportedly linked to the problem, but the government agency lists no injuries. According to NHTSA, the issue may be getting worse because 60 percent of these allegations are from the past nine months. A preliminary evaluation doesn't necessarily lead to a recall, though. NHTSA uses them "to assess the cause, scope and frequency of the alleged defect." Ford spokesperson Kelli Felker tells Autoblog: "We will cooperate with NHTSA on this investigation, as we always do." Related Video: INVESTIGATION Subject : Brake Vacuum Pump Failure Date Investigation Opened: JUN 22, 2015 Date Investigation Closed: Open NHTSA Action Number: PE15026 Component(s): SERVICE BRAKES, ELECTRIC , SERVICE BRAKES, HYDRAULIC All Products Associated with this Investigation Vehicle Make Model Model Year(s) FORD F-150 2011-2012 Details Manufacturer: Ford Motor Company SUMMARY: The Office of Defects Investigation (ODI) has identified 32 complaints alleging electric vacuum assist pump failures resulting in loss of brake power assist and increased brake pedal effort in model year (MY) 2011-2012 Ford F-150 full-size pickup trucks equipped with 3.5L GTDI engine. None of the complaints reported any warning indicators to alert the driver of brake power assist loss or the potential of increased stopping distance. Two reports alleged crashes due to increased brake pedal effort required to stop or slow the vehicle. The complaints show an apparent increasing trend, with approximately 60 percent of complaints received within the past nine months. A Preliminary Evaluation has been opened to assess the cause, scope and frequency of the alleged defect.

Ford Focus ST checks into Jay Leno's Garage

In a change of pace from the high-end vehicles that often appear in Jay Leno's Garage, Ford sends its hottest hatchback (in the US, at least), the 252-horsepower Focus ST, to be featured on Leno's show. Accompanying the five-door hatch is its chief engineer, Jamal Hameedi.
Riding on stylish 18-inch wheels with summer tires and with a spoiler that doubles as a lunch tray, Hameedi and Leno walk us through the finer points of what makes the ST special, which also includes bigger brakes, torque vectoring, a manual transmission and, of course, 252 hp and 270 pound-feet of torque from the 2.0-liter EcoBoost four-cylinder engine, which is made possible by 21 psi of turbocharged boost.
Watch the video below to see what Leno thinks of the global Focus ST.