Ever since Nads got his car back with the new Toda internals, he's been nothing but Persian smiles. That is, until his motor made an unnatural clunking noise not much different than a really wet fart.

No matter how well-tuned it is, your race engine is a grumbling beast. Consider that there are four controlled explosions with every turn of the crankshaft in a V-8 engine. At 7,000 rpm, the spark ...

The use of underdrive pulleys became common to the public in the 1970s, although the origin of the use of underdriven pulleys dates back to the earliest days of automotive racing. With constant ...

The 5.9L Cummins diesel engine is best known for its time when it powered Dodge trucks beginning in 1989, and it's an engine that certainly helped propel the Ram into being one of the top pickup truck ...

Horsepower and torque are the primary measurements of a drivetrain's power. Horsepower, for whatever reason, gets the notoriety and establishes the bragging rights. Yes, more horses mean more power, ...

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 ...

What do you brag about when you talk about your high-performance car? Most likely, you’ll talk about the engine displacement, number of cylinders, and the overall horsepower. Torque tends to take a ...

Which is better? Here’s how you quash that bar-night debate. Yogi Berra, never known to dwell on engine particulars, would have concluded that torque and horsepower are the same thing, only different.

Classic muscle cars were the pinnacle of U.S. automotive engineering of the time, with their massive big-block engines producing boatloads of horsepower and torque while still being affordable ...