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I suspect that if we identify a proper sized split scroll turbo and divorce both sides from each other we will see an improvement in performance and I now understand better why.
Of course a fully split system would be the best. That being a twin turbo system.
A split turbine turbo on an equal length would also be a best of the best system and easer for most of us to obtain.
Following this further and working toward divorcing the two sides of a 911 motor could generate several new products opportunities.
By just modifying one's old B&B style headers one would be able to fully eliminate the 'overlapping of exhaust events' for a potentially solid bump in performance.
Even the stock J pipe 930 system. If we replaced just the J pipe with separate tubes and waste gates to the split turbine turbo we would also be eliminating the overlapping exhaust events issue.
I suspect even on a stock 3.2 NA Carrera converting from a joined to a split system, including muffler, could make for a bump in performance.
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