Indeed a very very costly mistake, however I suppose the engine block / head / crank / direct injection system etc will all stay in place, instead a single tiny (possibly a variable geometry one) will be used instead of the twin charge system, so I guess a significant part of the investment cost would not be completely lost.
If one study the twin charge system specifications, the super charger is effective around 1,500~3,000 rpm, and the turbo comes in around 3,000~4,000 rpm range which is an extremely narrow band in modern day standard. Today a small turbo will easily have optimum efficiency ranging from 1,800~4,500 rpm, (a variable geometry one can push the effective range even higher in the upper rpm range), provide that the boost strategy is geared towards fuel efficiency and torque rather than pure HP. |
