This story appears in the June 29 print edition of Transport Topics. Old habits are hard to break, but engine parts that are tightened beyond specifications can be easy to break. For many engine ...

Torque-to-yield (TTY) bolts, also known as angle torque or stretch bolts, are fasteners designed to be tightened beyond their elastic range and into a controlled yield zone. Their job is to apply a ...

Still can't figure out the difference between horsepower and torque? Here's the simplest, plain-English guide to engine power you’ll ever read. "The Aston Martin Vanquish produces 824 horsepower and ...

When your foot is blue and your motor is reaching for the moon, we know what you're thinking: It's a good thing this engine's rock solid. At least we hope that's true. And as important as good-quality ...

Combining ECM calibration with a diesel delete kit removes the EGR and DPF systems entirely, allowing the tune to operate ...

Torque is a word freely bandied about by car manufacturers, advertisers and car reviewers, and it's every bit as important as the other headline figures you'll come across, such as horsepower, mpg and ...