There's an old saying in engine tuning that when adjusting the mixture of your engine you can be too rich a bunch of times, but only too lean once. With that in mind, determining the air-fuel ratio ...

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, ...

If you consider your spark plugs little more than disposable engine parts to be replaced for every event or two, you're missing out on a valuable engine-tuning tool. Not only can the correct plug ...

After having a proper platform with improved brakes, suspension, and transmission, the car is now ready to receive a better heart so it can move as great as it looks. But do that smart, and you'll get ...

The Toyota 2JZ engine is more than just a power plant; it has become a symbol of automotive tuning culture, revered by ...

Whether basic bolt-ons or forced-induction, gearheads can’t help but modify their rides. With the rise of handheld and PC-based ECU tuners, folks have an easier time than ever making big power from ...

Whether it’s a lawn mower, leaf blower, or chainsaw, a tuned carburetor can restore smooth running and dependable power. Learning the right cleaning and adjustment steps saves money and keeps your ...

The range of aftermarket engine tuning available to enthusiasts is incredibly wide, and we all have our own favorite car mods. When it comes to engine computer software, modern fuel injection has made ...