This paper describes the design and function of the all new AJV8 engine. The engine is deployed in both naturally aspirated and supercharged form. The 90 degree four valve per cylinder V8, is of all aluminum design and employs a new spray guided direct injection combustion system, with the injectors located centrally within the chamber for more precise fuel control. Intake and exhaust valve timing is varied via four cam torque actuated variable cam timing units.
The naturally aspirated derivative employs both two stage inlet valve lift control and two stage inlet manifold tuning to provide excellent low speed torque. This results in superior vehicle dynamic response and fuel economy.
The supercharged derivative uses Twin Vortex supercharging technology in combination with the optimized high pressure die cast, deep skirt block structure to deliver a class leading balance of performance and refinement.