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i didn't mean to imply that a turbo feeds one group of three cylinders. what i was thinking was since the turbos feed a common "rail", if one is producing no boost then the other will be pressuring the inlet tract but at some point the air will force its way back out the side which isn't doing any work.
i accept your point on the timing. so does the ecu advance it even more "ahead" of tdc? this, presumably, allows more time for the compressed charge to drive down the piston on the power stroke. the ecu then takes knock sensor input to avoid pinking?
think i'm going off thread somewhat now.
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