Engine, Cooling and Exhaust: Specifications
15 Valve Train
While the 3.8 liter engine retains the same valve lift and the same diameters for the intake and exhaust ports, the timing has been duly adapted to the modified gas exchange. This enables high torque and power output combined with a smooth torque curve.
Timing in retarded setting at 1 mm valve lift and zero play:
Intake opening, large stroke 9° after TDC
Intake closing, large stroke 61° after BDC
Intake opening, small stroke 39° after TDC
Intake closing, small stroke 19° after BDC
Exhaust opening 50° before TDC
Exhaust closing 4° before TDC