The active exhaust system gives Mustang owners the ability to change the tone of their exhaust. Here's how it works and if ...

To help build out a working filtration system, [Fab] needed some valves, so set about printing some of his own. [Fab] went with a simple butterfly valve design, similar to the throttle valve in ...

To help build out a working filtration system, [Fab] needed some valves, so set about printing some of his own. [Fab] went with a simple butterfly valve design, similar to the throttle valve in ...

It has a pivoting butterfly valve or throttle plate to control the airflow to the intake manifold and combustion chambers. Pressing on the gas pedal opens the butterfly valve to allow more air ...

Figure 1 shows how this can be done. A butterfly valve has a hollow stem conducting outside air into a number of small holes and dispersing the air into the water. This can only be done if the vapor ...