•  There are two intake ports and two exhaust ports for each cylinder. A total of 16 valves are directly driven by two camshafts.

•  A variable valve timing mechanism, which insures the best valve timing depending on the driving conditions by constantly changing the phase of the intake port side camshaft. (See VARIABLE VALVE TIMING MECHANISM OUTLINE [L3 Turbo].) (See VARIABLE VALVE TIMING MECHANISM FUNCTION [L3 Turbo].) (See VARIABLE VALVE TIMING MECHANISM CONSTRUCTION [L3 Turbo].) (See VARIABLE VALVE TIMING MECHANISM OPERATION [L3 Turbo].)