Your truck's factory settings are holding back more power than you'd expect.

Tuning a carburetor-equipped engine to perform its best with the reformulated unleaded gasoline of today can prove to be a challenge for many kit car owners and builders. Back in the days of leaded ...

When people talk about the air/fuel ratio of their engine, do you get confused? Do they really know what they're talking about, or did they just hear someone mention it in another conversation?

Think you can't have a small-block that lays down 556 hp, 512 lb-ft of torque, 120-mph trap speeds, and 21 mpg on the highway without dropping three grand on a slick EFI setup? Think again. The secret ...

While we like to think of 2002 as being part of a high-tech age, our beloved internal combustion engine hasn't really changed much in the last 50 years. We're still using pushrods and overhead valves, ...

Accelleron and HD HMS (HD Hyundai Marine Solution) have conducted Engine Part Load Optimization (EPLO) projects on two ...

Fork out a few hundred quid on a little black tuning box and you could unleash a healthy dollop of extra power and torque from your tractor. Sounds tempting, doesn’t it? But what are the risks? Will ...