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
What Is Nissan Vehicle Dynamic Control? Nissan Vehicle Dynamic Control (or VDC) is the name of the stability control system found on Nissan's vehicles. The system can help prevent under and oversteer by reducing engine speed and applying the brakes individually on specific wheels. The VDC system may need to be disabled in order to get the vehicle unstuck from mud or snow, but is better left on in most other cases.