Too many 4.0L Wrangler owners have a Fifth gear (or overdrive gear) that is collecting dust, not having been used since the Jeep had stock tires. Adding bigger tires, axles, and body armor can all ...

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 ...

"What do you mean the turbo is in the back?" This was a question posed by a hot rodder while hanging in the Fuddruckers parking lot. When we popped the hood and nothing but an STS Turbo decal and a ...

Air goes in, things go bang, and the air goes out. Sounds simple, doesn't it? The process of an engine working can actually be broken down to that simple concept. The internal combustion engine is ...