Videos

When you are building your project engine, there's a lot of math involved. One of the biggest calculations is compression height. That's especially true when...

California has approved the nation's first efficiency standards for replacement tires, but the new rules do not ban the tires already on...

When you want to modify your car, there are many engine mods to choose from. Some of these parts can help performance and gas...

Your Buick Park Avenue TPS is otherwise known as the throttle position sensor. It's primary job is to read the angle of your throttle...

Over time one or more of the Corolla Fuel Injector in your sedan can become clogged or even fail. When this happens your 1.6 liter...

Automotive PWM circuits rapidly switch power or ground to control components. Learn how duty cycle works and how to test it correctly.

If your Acura RSX starts and then immediately stalls, check the immobilizer, fuel pressure, throttle body, vacuum system, sensor data and idle learning before replacing parts.

Project SRT4 is back in action, recently putting down 383 horses to the front wheels on our Dynojet 448X. We are using a ACT...