What's the secret to Ford's 2015 Power Stroke's horsepower and torque success? Apparently, according to a press release, it's the shape of the exhaust down pipe that has a vague resemblance to the head of a king cobra snake when it's ready to strike.
The new Power Stroke engine is the undisputed leader in the horsepower and torque war in the heavy-duty pickup truck segment, with a Society of Automotive Engineers-rated 440 hp and 860 pounds-feet of torque from the 6.7-liter compacted graphite V-8 block. Although there were many changes to the 2015 turbo-diesel, one of the biggest changes responsible for those big numbers came from the 90-degree bend at the turbo-exhaust outlet. This, the engineers tell us, is one of the biggest reasons the horsepower and torque numbers climbed so dramatically from the previous 400/800 ratings.
Whether this means we'll see more animal- or reptile-shaped engine parts from Ford remains to be seen. However, if advance fluid dynamics computer modeling theories indicate that such designs get more torque and fuel economy from turbo-diesel engines, we don't have a problem with an air cleaner box that looks like an armadillo.