DIY Turbo Discussion greddy on a 1.8? homebrew kit?

t25/t28 turbine housing

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Old 10-22-2020, 07:29 PM
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Default t25/t28 turbine housing

For all of you fellow sr20 turbo bois. I have a t28 turbo off a 180sx, now I bought this turbo originally thinking it was a t25 however it turns out it's not. It has a .80 a/r compressor and .64 turbine I can provide more detail if you want to verify. Now my issue is with the turbine housing. Apparently the t25 and t28 have a different bolt pattern or differ slightly from each other, meaning I can't bolt up my downpipe outlet from kraken as it's made for a t25. I was wondering if it's possible to swap a t25 turbine housing onto my turbo allowing proper fitment. Any help would be appreciated.
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Old 10-22-2020, 11:59 PM
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that sounds more like a RB25 turbo. Do you have pictures of it?
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Old 10-23-2020, 12:05 AM
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Old 10-23-2020, 12:50 AM
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Well I looked up the tag# and it is indeed a t25 from a SR20DET.

How close are the turbine bolt holes? You could open them up a little bit and it should fit. Iirc they are really close
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Old 10-23-2020, 12:51 AM
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That's what I thought too, so I'm puzzled on my weird fitment
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Old 10-23-2020, 12:53 AM
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Originally Posted by wealthymayor
That's what I thought too, so I'm puzzled on my weird fitment
How close is it to fitting? You could open up the bolt holes on the turbine outlet from kraken a little and it may fit.
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Old 10-23-2020, 01:00 AM
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Yea I was thinking about that, it's pretty close. I'm also wondering though. One of my threads is damaged and I can't get a stud in there. I'm probably going to have to tap it again but how bad would the exhaust leak be if I just used 4

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Old 10-23-2020, 01:05 AM
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Originally Posted by wealthymayor
Yea I was thinking about that, it's pretty close. I'm also wondering though. One of my threads is damaged and I can't get a stud in there. I'm probably going to have to tap it again but how bad would the exhaust leak be if I just used 4

It's not ideal but tbh you probably wouldn't Leak at all. I've had to make due with 3 before when my studs broke and you'll be fine
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