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
getting off track. So Vrms, Vdc, Vac -- Actually only the Vrms in this case is specific. Vac - is a generic ( ambiguous ) term for Voltage of an Alternating Current Waveform - the Current term is misleading as well - but that is what the world has settled on! -- V ac does not define how this is measured.