Having run hundreds of tests on the. effect of 2-valve throttle body upgrades on everything from stock to supercharged combinations. (both centrifugal and positive displacement), it is safe to say that throttle body upgrades on the 2-. valve motors are a worthwhile endeavor.
VDC may refer to: In technology: Virtual design and construction, modeling software and techniques to design and evaluate possible construction processes; Volts of direct current; Video display controller, a computer graphics chip; Vehicle Dynamics Control, a means of increasing vehicle stability through a combination of throttle restriction and braking
Virtual Directory. Definition - What does Virtual Directory mean? A virtual directory is a path or alias within a website that refers users to another directory where the actual data is hosted. The referred directory can be a physical directory on a local server's hard drive or a directory on another server (network share). The home directory is the root while other directories are virtual directories and are associated with it through aliases.