the ecu uses the last break point in the axis for any iq after the 70mm3 that ? the maximum value of IQ in axis oriper all ? 3 maps...
then you do not need to change anything in the maps n75....
if you want to tap in breck point relative to the maximum iq, and high rpm you can lower the Dc of a 7-8% in order to avoid that due to the diesel in most injected the vgt a p? more open to prevent the press turbo up to unwanted values..
however, I have done car with 100mm3 of diesel followed perfectly what is set in the map turbo without the need to touch the maps DC n75....