z31 turbo mystery
#1
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So on craigslist, there's a "t25 from a z31" in my price range, so I did some research...
There's so much conflicting info out there I'm not sure which way is up. I know for sure that late 300zx's came with a "t25" turbo, while the earlier ones had T3s. There was this really helpful thread here where a t25 turbo with a T3 flange came off a 300zx. I've heard that flange mismatch is the case from some other place, but that doesn't jive with what I know about turbo names...
Anyway. To the questions.
I don't mind using a T3 flange since I'm building my own manifold, but with a lack of turbine maps, how can I be sure my 1.6 will spin it?
Lets say I want to add a ton more boost. Could I use the CHRA from a GT2560R to make a sweet BB hybrid? I'm worried that I'll be stuck with a T3 flange and I'll have no options for making power under 6000rpm.
here's that thread https://www.miataturbo.net/diy-turbo...n-turbo-33468/
Brain knew about the turbo the first time, so lets see if I can summon him
There's so much conflicting info out there I'm not sure which way is up. I know for sure that late 300zx's came with a "t25" turbo, while the earlier ones had T3s. There was this really helpful thread here where a t25 turbo with a T3 flange came off a 300zx. I've heard that flange mismatch is the case from some other place, but that doesn't jive with what I know about turbo names...
Anyway. To the questions.
I don't mind using a T3 flange since I'm building my own manifold, but with a lack of turbine maps, how can I be sure my 1.6 will spin it?
Lets say I want to add a ton more boost. Could I use the CHRA from a GT2560R to make a sweet BB hybrid? I'm worried that I'll be stuck with a T3 flange and I'll have no options for making power under 6000rpm.
here's that thread https://www.miataturbo.net/diy-turbo...n-turbo-33468/
Brain knew about the turbo the first time, so lets see if I can summon him
![](https://www.miataturbo.net/attachments/diy-turbo-discussion-14/161708-z31-turbo-mystery-fullsizerender-2_zpsu4jb7x13.jpg?dateline=1455044868)
#4
mkturbo.com
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Try using searchtempest.com and searching all over the US. May be able to find one on there that someone would be willing to ship. I paid $100 for my SR20 T25 back in 07/08, I then paid the same price in 2013, and again in 2014 for more. Sadly I don't have any spare ones on hand that I could let go.
#7
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Boom. As soon as I complain, one shows up. Maybe you guys can help me get this girl I like to go out with me this Sunday
Does this look like it'll clean up ok? I'm not 100% what to look for. It has some shaft play, so I'm expecting a rebuild. It doesn't look like the fins hit the housings, which is basically all that matters right? Looks like some studs are missing too, what do people usually use?
![](https://www.miataturbo.net/attachments/diy-turbo-discussion-14/161787-z31-turbo-mystery-0209161458_zpsdq6tbdgk.jpg?dateline=1455078036)
![](https://www.miataturbo.net/attachments/diy-turbo-discussion-14/161788-z31-turbo-mystery-0209161458b_zpsxl8esdxz.jpg?dateline=1455078036)
![](https://www.miataturbo.net/attachments/diy-turbo-discussion-14/161789-z31-turbo-mystery-0209161458c_zpswmuwlxbn.jpg?dateline=1455078036)
![](https://www.miataturbo.net/attachments/diy-turbo-discussion-14/161790-z31-turbo-mystery-0209161458a_zpsmziqtcqm.jpg?dateline=1455078036)
Does this look like it'll clean up ok? I'm not 100% what to look for. It has some shaft play, so I'm expecting a rebuild. It doesn't look like the fins hit the housings, which is basically all that matters right? Looks like some studs are missing too, what do people usually use?
![](https://www.miataturbo.net/attachments/diy-turbo-discussion-14/161787-z31-turbo-mystery-0209161458_zpsdq6tbdgk.jpg?dateline=1455078036)
![](https://www.miataturbo.net/attachments/diy-turbo-discussion-14/161788-z31-turbo-mystery-0209161458b_zpsxl8esdxz.jpg?dateline=1455078036)
![](https://www.miataturbo.net/attachments/diy-turbo-discussion-14/161789-z31-turbo-mystery-0209161458c_zpswmuwlxbn.jpg?dateline=1455078036)
![](https://www.miataturbo.net/attachments/diy-turbo-discussion-14/161790-z31-turbo-mystery-0209161458a_zpsmziqtcqm.jpg?dateline=1455078036)
![](https://www.miataturbo.net/attachments/diy-turbo-discussion-14/161791-z31-turbo-mystery-0209161458d_zpsvlbkrs5d.jpg?dateline=1455078036)
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