Diesel engines need two things to make power: air and fuel. We know that's grossly oversimplified, but it's true. If you increase the engine's ability to ingest air, you can add more fuel and thus ...

In a diesel engine, adding more fuel will almost always result in more horsepower, and last month, that's exactly what we did in our "Fuel It Up!" article. There are drawbacks to making power in this ...

As good as the 5.9-liter Cummins engine is, it could do with the nicer variable geometry turbo from the newer 6.7-liter. Is it possible to do that?

With over 180,000 miles on the clock, the original 327-cubic-inch engine in the El Camino had gone through just about all the rebuilds and use that any engine can reasonably be expected to endure; but ...

Already a proven global workhorse, Ford adds 3.2-liter five-cylinder turbo diesel to fuel-efficient North American lineup in all-new Transit commercial van range DEARBORN, Mich., Dec. 10, 2012 – ...