The optional 3.0 - liter V6 gets a variable valve timing system that uses camshaft torque to move the hydraulic fluid that changes
the valve opening profile.
Not exact matches
«Soft - landing» cam
profiles prevent excessive noise, harshness or wear, and the slight «loft» (where the cam throws the
valve farther
open at high speed) actually improves breathing a bit more at redline.
From this point on, the
valves open and close according to the high - lift
profile, which
opens the
valve further and for a longer time.
For low - rpm torque, the solenoid
valve is
opened near the end of the cam
profile, leading to early intake
valve closing.
Gen V Cams feature four different lobe
profiles to both create AFM compatibility and optimize intake and exhaust
valve opening / closing events.
The Australian factory service manual provides camshaft measurements which do not match any of the known USDM or EDM camshaft
profiles, the FSM states the exhaust
valve has an
open duration of 252 degrees, but the specified
opening and closing angles add up to 258 degrees.