The problem is that the VE of the engine is not fixed at a given RPM/Boost level anymore because it will also depend on the vanes, thats my objection.
Now obviously in theory the vanes should always do the same thing at any given rpm/boost level, but in reality i suspect that the different time to go up through the gears will result in a slightly different response at any given load site from the vanes, especially as they are not instantaneous to react.


However, If you measure exhaust back pressure then thats cool, you just need some sort of feedback in terms of what the vanes are doing so you can use that to alter the fuelling, then you dont need an airflow meter signal, that was just one suggestion on how to react to the vanes.