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T2 Turbo Classification/alternate parts list

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Old 10-07-07, 09:37 AM
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T2 Turbo Classification/alternate parts list

It seems that no one is able to answer this kind of question so I figure I'd ask it here:

The Hotside from the turboII I have has some pretty nasty cracks in the inside of the housing. I would like to replace that housing with a brand spanking new housing from an aftermarket turbo place (such as atpturbo.com) but i'm not sure of the classification of the turbo, or which turbo will work with it. I was told by certain persons that it's a T3/T4 Hybrid, but i'm not sure how much I trust that information.

What other turbo components will work with the stock turbo from an 86-91 Turbo?
Compression housings?
Turbine Housings?
Intermediate adapters (for oil and water)?
Any other modifications that could be done to the stock turbo.

(extra information: the compression housing i have on here now is a Garrett with the part number:409080-5009. I'll do some more research regarding that part number and see what turbos it fits--maybe that will point me in the right direction for the turbine housing?)
Old 10-14-07, 10:04 PM
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Possible compatible turbos

Based upon measurements of the turbo inducer and exducer (on the hotside, warning it is not extremely accurate!) here are a list of possible compatible turbos to try out--this is according to the information provided here.

For the inducer I measured a little less than 2.9375 in (dia). This means that the hotside can likely support:
T04R
GT40
T78 (unsure)
T88 (unsure)

Anyone confirm or deny?
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