24-02-2013, 08:01 PM
This is one of the confusions of the old T series to GT series naming scheme - it's a T series centre cartridge, GT series Turbine, but a T series compressor. Though the turbine is actually quite rare as it's a GT series turbine with a 6.0mm shaft, most GTs from GT15-25 frame are 5.0mm.
Which means it's a 6 blade 52.10mm compressor, it is essentially a "T25" wheel - i.e. Saab 900 style compressor, though they're a 54mm 5 blade, though same generation etc.
The 38 in GT2538C comes from the compressor INDUCER size (38.8mm inducer, 52.10mm exducer).
If you go by the new generation naming it's a GT2552C.
Which means it's a 6 blade 52.10mm compressor, it is essentially a "T25" wheel - i.e. Saab 900 style compressor, though they're a 54mm 5 blade, though same generation etc.
The 38 in GT2538C comes from the compressor INDUCER size (38.8mm inducer, 52.10mm exducer).
If you go by the new generation naming it's a GT2552C.
