A pressurized manifold will further improve the efficiency of the PRV engine. A throttle plate works against the turbo in order to regulate the air intake during partial throttle. A PRV, by contrast, works with the turbo to deliver a well-mixed charge into the engine with minimal pressure and efficiency loss.

PRV improves engine fuel economy because the pressure immediately before the intake valve is restored during the compression and exhaust phases of a four-stroke engine. The pressure profile within each cylinder is enhanced by the pressure recovery attribute of the Venturi. A pintle-regulated Venturi is the most streamlined flow device imaginable because flow is unregulated until the very end of the intake cycle.