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Ford GT dominates Le Mans qualifying, gets slapped with performance adjustment

Fifty years after Bruce McLaren and Chris Amon drove the Ford GT40 to victory at the 24 Hours of Le Mans, Ford is poised for a historic return to the Circuit de la Sarthe. The new Ford GT took the top two qualifying positions in the LMGTE Pro class, and four of the top five. Ferrari's 488 filled in the rest of the spots in the top seven, the first two from AF Corse. In other words, we're primed for a reboot of the classic Ford-Ferrari feud at this year's race. Or not, as the ACO, which organizes the 24 Hours of Le Mans, announced sweeping pre-race Balance of Performance (BOP) adjustments this morning that make this year's GT class anybody's race. In LMP1, last year's overall winner Porsche locked up the top two spots with the 919 Hybrid and will lead the entire field at race start. Toyota's two-car factory effort followed with qualifying times 1.004 and 2.170 seconds behind the pole lap. Audi rounds out the manufacturer-backed LMP1 class in fifth and sixth. Full qualifying results can be found here. The storyline for the GT cars is perfect - some say too perfect. Ford's class-leading times came after BOP adjustment to the Corvette Racing C7.R before qualifying. BOP is intended to level the playing field in the class by adjusting power, ballast, and fuel capacity. (Check out this explainer video for more, or even just if you love French accents.) But the process is riddled with unknowns and ripe for accusations of sandbagging. That is, if the Ford cars were intentionally slow in practice they could hope for BOP adjustment to improve their race chances. On the Corvette side, last year's GTE Pro winner went from the top of the field to the bottom, barely improving from practice to qualifying. If you think Le Mans is as rigged at the NBA Playoffs, well, it's not that simple. Because if Ford and Ferrari held back until qualifying - the eighth-place Porsche 911 RSR is three-and-a-half seconds off the class pole time - it was a pretty dumb strategy. This morning, the ACO tried to put things back in order by limiting the boost in the Ford GT's twin-turbo V6 and adding 11 pounds of ballast. Ferrari was also given extra weight but allowed more fuel capacity. The Corvette and Aston Martin teams were both given breaks on their air restrictors, which will allow their engines to make more power. Both Ford and Porsche also received extra fuel capacity.

GM investing $439 million in Corvette plant

General Motors is slowly trickling out announcements about its $5.4 billion in US plant upgrades over the next three years. The latest one is something that fans of one of America's most beloved sports car will be happy about. The Bowling Green, KY, factory that assembles the Chevrolet Corvette is receiving $439 million of those funds to build a new paint shop. Covering 450,000 square-feet, the site will make painting the 'Vette more efficient and environmentally friendly. The upgrades there include robots that use paint more effectively, technology to eliminate sludge water, LED lighting to improve inspections, and less energy-intensive baking ovens. While the groundbreaking is already complete for the building, full construction is expected to begin this summer and take two years. This is the biggest upgrade for the Kentucky factory in a few years. In preparation for the latest Corvette, the Bowling Green plant received $131 million in 2011 for upgrades and to add more workers there. Related Video: Chevrolet Corvette Plant Gets $439 Million in Upgrades New, environment-friendly paint shop drives efficient production, retains 150 jobs 2015-05-21 BOWLING GREEN, Ky. – Torch Red, Shark Gray Metallic and Laguna Blue Tintcoat, three popular palate choices on the 2015 Corvette, kept the marketers who make up names working late. Now they can dream about more painstakingly precise pigments, thanks to a new paint shop that is among $439 million being invested at the only plant in the world that builds Chevrolet's iconic sports car. General Motors announced the moves today that include retaining 150 jobs and building the 450,000 square-foot paint shop that is almost half the size of the entire current production facility. The investment builds on approximately $135 million GM has invested in the plant over the last four years for the new Corvette Stingray and Performance Build Center. The announcement was followed by a groundbreaking event for the new paint shop. "The Corvette is one of Kentucky's most-cherished icons," said. Lt. Gov. Crit Luallen. "Such a significant expansion of the Bowling Green Assembly Plant will help the company remain competitive in the region and around the world." Construction of the new paint shop, which includes substantial technology upgrades, is planned to begin this summer and take approximately two years to complete. Corvette production schedules will be unaffected by the construction.

Chevy's 6.6-liter Duramax is pretty much all new

To say there's a heated battle in heavy-duty pickups is an understatement, with Chevrolet, Ford, and Ram constantly trading blows of increased torque, horsepower, and towing capacity. The latest salvo is the revised, more powerful turbo diesel 6.6-liter Duramax V8 in the 2017 Chevy Silverado. It has 910 pound-feet of torque, an increase of 145, putting it nearly level with the Ford Super Duty. Here's a closer look at where those gains come from. How exactly did Chevrolet add all that torque plus 48 horsepower? The automaker essentially took a fine-tooth comb to the entire engine. Chevy says it changed 90 percent of the V8, and the cumulative effect of those small changes adds up to big increases. As you might guess, the turbocharger is updated. The larger unit features electric actuation of the variable nozzle turbine (VNT), and what Chevy calls a double axle cartridge mechanism that separates the VNT moving parts from the housing. That helps with heat performance as well, with a claim that the exhaust side of the turbo can run continuously up to 1,436 degrees Fahrenheit. Helping that cause are six exhaust gaskets made of Inconel - an nickel alloy that contains chromium and iron – and upgraded stainless steel for the exhaust manifold. Despite having the same cast iron cylinder block, albeit with some minor enhancements, the engine has new cylinder heads, pistons, piston pins, connecting rods, and crankshaft, which have all been upgraded to handle 20 percent higher cylinder pressures. Alongside the increase in pressure, Chevrolet also increased the cylinder head's structure with a honeycomb design. The pattern features high-strength aluminum with dual layer water jackets that not only improve strength, but also optimize water flow for better cooling. For 2017, the cylinder head also benefits from integrated plenum that aids the engine in getting more air under heavy loads. The cylinder head isn't the only component to get a minor update, as the pistons have a larger diameter pin for improved oil flow. The same detailed improvements has been bestowed to the humble connecting rods (second in our hearts only to the inanimate carbon rod). The new design has the bolts oriented roughly 45-degrees to the rod instead of parallel. The angle split design, as it's called allows for easier passage through the cylinder.