To begin, we know that both intake and exhaust systems operate with un-steady, pulsing flow. On the intake side, by comparison, this is probably more important to consider since (particularly when ...

In the simplest terms, torque represents how strong an engine is. It's the rotational force that translates into acceleration and, ultimately, speed. Torque determines how quickly a car launches off ...

Where the 4.0-liter made peak power at 8300 rpm, the 3.0-liter makes peak power at 5500 rpm. Although the new twin-turbo six-cylinder doesn't have the stratospheric revs as the previous V-8, it makes ...

Turbocharged engines make big torque at low rpm, but those two numbers, peak torque and its corresponding rpm, don’t tell the full story, as boost pressure isn’t solely a function of engine speed. A ...

Volvo's new XE13 and Eco-Torque powertrain packages will make a big difference to drivers in ways they will never know — and a few they will. What a difference a little extra engine torque makes. I ...

Try this for kicks. The next time you’re surrounded by your gearhead buddies, ask them to explain the difference between horsepower and torque. The participants will immediately divide into “pro ...

In a recent article, I wrote about step-motor system performance emphasizing key concepts that all engineers need to understand about this widely-used electro-magnetic-mechanical digital actuator. As ...