Is there any difference between a T28 from a black top sr20det and a T28 from a GTiR? like A/R or possibly flange type
please post what you know.
thanx
GOOGLE damnit, in 30 seconds I found this.
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 compressor in T-04B housing,
62 trim 53.8mm T-25 turbine. .64 A/R turbine housing.
Ball bearing center section.
S15 SR20DET: Same as S14, but with Inco turbine wheel (instead of
GMR), cast divider wall between turbine discharge and
wastegate.
Pulsar GTi-R: T-28, 60 trim 60 mm BCI-1 compressor in standard T-3
housing. 79 trim 53.8mm Inco T-250 turbine wheel .86
A/R turbine housing. Journal bearings.
GTi-R T-28 is a really good turbo. I think that it is better if you lose
the T-3 compressor housing and get a housing off of the S14. This is a big
improvement. With the T-04B compressor housing, the GTi-R turbo can support about 16 psi and 280+ wheel hp. Makes pretty good boost by 3500 RPM, too.
sorry forgot about google, instinct was to come here … thanx