Not trying to be a PITA, but do you know which specific Nissan SR20 it cam from there were a few different turbos. for example;
S13 SR20DET: T-25, 60 trim 56mm BCI-1 compressor, 53.8mm 62 trim
T-25 turbine, .64 A/R turbine housing. Journal
bearings.
S14 SR20DET: T-28, 60 trim 60 mm BCI-1...