Hello, I need help calibrating SOI and duration maps for a 1.9 PD 105 hp with V10 injectors fitted. Is there any tutorial or an EXCELL to help me do the math?

Do a search on Wiki S4 , they have a very rich information about how to scale new injectors

Start by exporting durations from the same engine where you got the injectors. There are 4 types of V10, which ones do you have? They are mostly 2 types, PDE1.1 and PDE1.4, so different BIP also.