# T25 Compressor wheel and S14 T28 compressor wheel...the same?

**URL:** <https://forums.speedlife.net/t/t25-compressor-wheel-and-s14-t28-compressor-wheel-the-same/154478>\
**Category:** SON240sx Automotive\
**Created:** [May 4, 2010, 9:41pm UTC](https://forums.speedlife.net/t/t25-compressor-wheel-and-s14-t28-compressor-wheel-the-same/154478 "2010-05-04T21:41:11Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![Martino](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/martino/32/5674_2.png) [@Martino](https://forums.speedlife.net/u/Martino)\
**Post date:** [May 4, 2010, 9:41pm UTC](https://forums.speedlife.net/t/t25-compressor-wheel-and-s14-t28-compressor-wheel-the-same/154478/1 "2010-05-04T21:41:11Z")

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Is the compressor wheel off a stock t25 turbo the same as the S14 T28? Exact same size and everything?

Also, the T28’s that came off the S14 sr’s were journal bearing or ball bearing?

I’ve googled the specs but every other site I’ve gone to says the opposite of each other.

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**Author:** ![Singh](https://avatars.discourse-cdn.com/v4/letter/s/43a26b/32.png) [@Singh](https://forums.speedlife.net/u/Singh)\
**Post date:** [May 10, 2010, 4:22pm UTC](https://forums.speedlife.net/t/t25-compressor-wheel-and-s14-t28-compressor-wheel-the-same/154478/2 "2010-05-10T16:22:03Z")

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> [@Martino"](#):
>
> Also, the T28’s that came off the S14 sr’s were journal bearing or ball bearing?

up to a certain spec of s14, the sr20det had the journal, and somewhere along the line they became ball bearing.

So to answer your question, they were both journal and ball bearing. Look at stampings to figure out which it is.

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**Author:** ![Martino](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/martino/32/5674_2.png) [@Martino](https://forums.speedlife.net/u/Martino)\
**Post date:** [May 10, 2010, 4:23pm UTC](https://forums.speedlife.net/t/t25-compressor-wheel-and-s14-t28-compressor-wheel-the-same/154478/3 "2010-05-10T16:23:32Z")

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How can you tell the diff?

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**Author:** ![Singh](https://avatars.discourse-cdn.com/v4/letter/s/43a26b/32.png) [@Singh](https://forums.speedlife.net/u/Singh)\
**Post date:** [May 10, 2010, 4:25pm UTC](https://forums.speedlife.net/t/t25-compressor-wheel-and-s14-t28-compressor-wheel-the-same/154478/4 "2010-05-10T16:25:19Z")

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> **[T28 Ball Bearing And Non Ball Bearing Turbo - Engine](http://www.silviawa.com/forums/index.php?showtopic=5954)**
>
> T28 Ball Bearing And Non Ball Bearing Turbo - posted in Engine: I came accross and interesting article earlier that might solve the BB/nonBB dilemma. Ive heard different stories from people and read many things and still am not sure which models had...

according to that, it was pretty rare for them to be ball bearing.

Under the assumption that aussie stuff is the same as what we got.

That link has part numbers for stampings on the housing.

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**Author:** ![Martino](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/martino/32/5674_2.png) [@Martino](https://forums.speedlife.net/u/Martino)\
**Post date:** [May 10, 2010, 11:02pm UTC](https://forums.speedlife.net/t/t25-compressor-wheel-and-s14-t28-compressor-wheel-the-same/154478/5 "2010-05-10T23:02:45Z")

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> [@Gyani](#):
>
> [http://www.silviawa.com/forums/index.php?showtopic=5954](http://www.silviawa.com/forums/index.php?showtopic=5954)
> 
> according to that, it was pretty rare for them to be ball bearing.
> 
> Under the assumption that aussie stuff is the same as what we got.
> 
> That link has part numbers for stampings on the housing.

According to that, the JDM ones can be bb.

> So auspec S14/15 = None BB T28. JDM = of course.