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 ...

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

Usually you'll only modify your engine's computer to achieve higher engine output, but with recent gas prices it's worth looking at your ECU to see what kind of gains in economy you can get. Since the ...

Ignition timing is easily the single most important tuning adjustment on an internal-combustion engine, yet the concept of ignition curves continues to be elusive for many enthusiasts. All it takes to ...