1 "Sick" 5, -165,which apparently is the correct term though ive never really heard anyone actually say it.
Then you get stuff like T-VIS on the earlier engines, Toyota Variable Induction System.Then you had ACIS (Acoustically Controlled Intake System) come in.
Breakthrough Engine with Advanced Mechanism System is a proper daft acronym,though if anyone asks and you tell them youve got a Beams engine,you normally get a weird look.It has the VVTi system that the later model guys will recognise, Variable Valve Timing with Intelligence.