BorgWarner suggests Valve-Event Modulated Boost system can offer 6-17% fuel economy benefit over already downsized and turbocharged engines
Green Car Congress
MAY 9, 2012
BorgWarner says that its Valve-Event Modulated Boost (VEMB) system can offer a total possible fuel economy improvement of 6% at low speeds to 17% at high speeds over already downsized and turbocharged engines by separating the exhaust event into an early blow-down phase directed toward the turbo and a late scavenge phase directed toward the EGR system. to 2 ratio points and maintain the same knock limit for an additional 3-4% improvement in fuel economy.