So I decided to replace the bad turbocharger on the Spirit R/T I recently acquired on eBay. I wrestled the turbo off yesterday and today I start dismantling it because I was bored.
Right away I noticed that the compressor housing says, "Nissan Motor" on it. There is no indication of A/R or any other part # on the housing, but it looks about the same size as a Garrett TIII compressor housing. I haven't removed the compressor housing from the center section yet but the compressor wheel looks larger than stock. Then I removed the TIII turbine housing and the turbine wheel is waay bigger than a stage-I wheel and the housing has obviously been machined out to fit it. There is a tag on the center section that says "TBO339". Anybody have any idea what this turbo might have come from?
I'm not sure if it's rebuildable though. When I removed the turbine housing a bunch of black carbon looking stuff fell out from under the cap that is under the turbine wheel. It doesn't have much side play, but it does have about 1/8" of in/out play. The housings don't look like they were damaged much, if at all. The compressor wheel will need to be replaced, but the turbine wheel still looks OK.