MT detectives, help me ID my old POS turbo
#1
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Was puttering around in the garage, found my old quick-spooling turbo. It's some species of T3/T04B I think, but I'm not sure exactly what size because none of the measurements I've taken match any known compressor wheel sizes. I figure I'm either measuring wrong or I'm retarded or something.
Anyway, here goes:
Compressor:
8 blades at inducer, x2 at exducer
inducer diameter: 47.59mm
exducer diameter: 67.93mm
Turbine:
11 blades
about 2.1" at exducer
says GARRETT on the back of the turbine with
M-4
PT-2
AR.48
on the inlet of the housing
Don't really care much about the turbine housing, mainly curious what compressor this is.
Here is a picture of me measuring the exducer diameter of the compressor.
Anyway, here goes:
Compressor:
8 blades at inducer, x2 at exducer
inducer diameter: 47.59mm
exducer diameter: 67.93mm
Turbine:
11 blades
about 2.1" at exducer
says GARRETT on the back of the turbine with
M-4
PT-2
AR.48
on the inlet of the housing
Don't really care much about the turbine housing, mainly curious what compressor this is.
Here is a picture of me measuring the exducer diameter of the compressor.
![](https://www.miataturbo.net/attachments/diy-turbo-discussion-14/150539-mt-detectives-help-me-id-my-old-pos-turbo-80-img_1684_resize_2a9559353df73ec3d01d5ef1ab945f8121ea0932.jpg?dateline=1442782911)
#3
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There are a number of compressor wheels with specs in that range. See this chart.
Turbo Compressor Chart
Edit: Also, post some pics of the whole turbo.
Turbo Compressor Chart
Edit: Also, post some pics of the whole turbo.
#4
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Yeah, I'm aware there are many turbos that are close to that size. That's my problem. My measurements don't actually match anything and it's so close to so many plausible turbos I have no idea what I'm looking at.
There aren't any markings on the turbo besides A letter C on the compressor outlet and the text I described above. The center section is an unremarkable oil cooled, journal bearing center section. The turbine housing is a typical 5 bolt internal wastegated housing with a T3 flange.
There aren't any markings on the turbo besides A letter C on the compressor outlet and the text I described above. The center section is an unremarkable oil cooled, journal bearing center section. The turbine housing is a typical 5 bolt internal wastegated housing with a T3 flange.
Last edited by AlwaysBroken; 09-21-2015 at 02:54 AM.
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