I’m thinking of getting this turbo it says Garrett AirResearch on the compressor housing and I took a caliper and measured it’s inlet/outlet sizes. I tried to get the measurements as close as possible, it might be out by 0.5mm the most:
no internal/integral wastegate
T3 flange: 42mm X 56mm
Compressor inlet: 53.5mm (2.11 inches)
Compressor outlet: 34mm (1.33 inches)
Turbine outlet: 56mm (2.20 inches)
thanks in advance for your help!