Here are some results ….
Firstly, it is interesting to see , that keeping the same turbo , same wastegate with same spring (0.8b) , the " before and after " MAP curves exhibits a little difference.
This turbo provided about 0.85 b of boost pressure into the previous setup ( little increase along the rpm), now the boost pressure is totally flat and is around 0.79 b only.
As can be seen either, even with new larger cams & larger intake, the turbo reach 0.8 b at nearly the same RPM . ( Maybe 100 or 200 RPM higher only)
Here is one comparison between with and without "CIS controller" . In both case , there is no extra boost ( wastegate regulation @ 0.8b only ). As said before, the car is fitted with the FVD advance timing plate + RPM switch which allow me to add 3° or 6° on the stock timing. In this example, the curve with stock CIS ( no CIS controller) was made with 6° more below 4200 RPM , 3° more between 4200 and 5600 RPM, and 6° more at upper RPM. The curve with the CIS controller was made with + 6° everywhere.
So far, without the CIS controller it is too fat everywhere ! ( but it’s normal, I have 044 fuel pump in front )
The benefit of the CIS controller + 3° more advanced timing ( in the range 4200-5600 only ) can be seen !
My datalogger estimated power & torque are a bit pessimist. Actually , with this same adjustment ( 0.8b only) , 430 HP have been obtained during the dyno session.
