# T28 compressor wheel size?

**URL:** <https://forums.speedlife.net/t/t28-compressor-wheel-size/158914>\
**Category:** SON240sx Automotive\
**Created:** [August 9, 2010, 7:14pm UTC](https://forums.speedlife.net/t/t28-compressor-wheel-size/158914 "2010-08-09T19:14:13Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![240sex](https://avatars.discourse-cdn.com/v4/letter/2/22d042/32.png) [@240sex](https://forums.speedlife.net/u/240sex)\
**Post date:** [August 9, 2010, 7:14pm UTC](https://forums.speedlife.net/t/t28-compressor-wheel-size/158914/1 "2010-08-09T19:14:13Z")

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does anybody know the compressor wheel size on a s14 sr t28? i’ve searched but seem to find different answers and it’s just annoying me. i need one so i can rid myself of my blown t25 haha.

any help is appreciated. thanks.

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**Author:** ![derass](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/derass/32/5691_2.png) [@derass](https://forums.speedlife.net/u/derass)\
**Post date:** [August 11, 2010, 12:47pm UTC](https://forums.speedlife.net/t/t28-compressor-wheel-size/158914/2 "2010-08-11T12:47:14Z")

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Compressor: T-28, 60 trim 60mm BCI-1 compressor in T-04B housing

> **[SR20DET Specs](https://www.dcautoparts.com/pages/sr20det-specs)**
>
> SR20DET Specs - Specifications for the SR20DET engines found in the S13, S14 and S15 cars.

google. first site. that info is everywhere.

60mm refers to the exducer (larger) wheel diameter

inducer size can be derrived from the given trim of 60.

trim=(inducer^2/exducer^2)\*100

60=(inducer^2/60^2)\*100

2160=inducer^2

46.48mm = inducer diameter

[http://www.turbobygarrett.com/turbobygarrett/tech\_center/turbo\_tech102.html](http://www.turbobygarrett.com/turbobygarrett/tech_center/turbo_tech102.html)

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**Author:** ![simplemind7](https://avatars.discourse-cdn.com/v4/letter/s/0ea827/32.png) [@simplemind7](https://forums.speedlife.net/u/simplemind7)\
**Post date:** [August 11, 2010, 1:14pm UTC](https://forums.speedlife.net/t/t28-compressor-wheel-size/158914/3 "2010-08-11T13:14:04Z")

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Holy fuck, there’s someone knowledgeable and helpful on SON.

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<div class="post-metadata">

**Author:** ![derass](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/derass/32/5691_2.png) [@derass](https://forums.speedlife.net/u/derass)\
**Post date:** [August 11, 2010, 1:16pm UTC](https://forums.speedlife.net/t/t28-compressor-wheel-size/158914/4 "2010-08-11T13:16:43Z")

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i hope that helped…post count bump lol