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Old 12-20-2010, 11:06 PM   #1
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Default What Turbo do I have?

I was told it is a t-28, but that is it. I know there are many variations of the T-28 but I donít know which one I have. Here is what I know:
The turbo came off an early FM kit, but I was told the turbo was upgraded.

Compressor
Says A/R 48
Inducer diameter = 40.97mm
Exducer diameter = 50.98mm
=64.6 trim

Turbine
Says A/R 64
Inducer diameter = 52.7mm
Exducer diameter = 42.09mm
=63.5 trim

Iím trying to see what the power potential of this turbo is.
I can add pics if necessary.
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Old 12-20-2010, 11:13 PM   #2
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Sorry, posted in the wrong area. Mods please move to DIY Turbo Discussion. Thanks.
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Old 12-20-2010, 11:42 PM   #3
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Does it have a tag on the CHRA?
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Old 12-21-2010, 01:48 AM   #4
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No.
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Old 12-21-2010, 01:56 AM   #5
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If it helps.
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Old 12-21-2010, 02:01 AM   #6
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smaller than a 2650, i think!

There is only 4 bolts that hold the turbine housing to the CHRA, i only see 4. My 2560 had 6 (wait no, my 2860 has 6.....FAWK idk.) I dont know **** about AR and all that crap...
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Old 12-21-2010, 02:28 AM   #7
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Your compressor wheel measurements are a hair smaller than a 2554, and also those currently have a .80 A/R. I believe the .48 compressors were common on the small T25s used on the 300ZX but don't quote me on that. The turbine side sounds close to a 2554 or 2560 but again yours has a more puny compressor. Maybe good for 200 whp? Just a guess.
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Old 12-21-2010, 02:40 AM   #8
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Doesn't match up directly with anything here.

http://www.turbobygarrett.com/turbob...ison_sheet.htm

C
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Old 12-21-2010, 09:08 AM   #9
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looks like the comp is close to a GT2252 good for 180-260 is what garrett says on there sit so proby max 220
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Old 12-21-2010, 09:41 AM   #10
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was the compressor measurement supposed to say 60mm? Cause then it would make sense as a T28 with a 50 trim compressor wheel.

Last edited by Braineack; 12-21-2010 at 10:37 AM.
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Old 12-21-2010, 10:34 AM   #11
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kinda looks like a nissan ca18 turbo and they are both .48 too.
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Old 12-21-2010, 11:51 AM   #12
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Quote:
Originally Posted by 91rps13 View Post
kinda looks like a nissan ca18 turbo and they are both .48 too.
I don't think its a nissan S13 1.8 turbo, cause it doesnt look like this:
http://cgi.ebay.com/ebaymotors/Turbo...Q5fAccessories

Last edited by elderc; 12-21-2010 at 12:02 PM.
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Old 12-21-2010, 01:07 PM   #13
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Could it be a hybrid?
T25 cold side
T28 hot side
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Old 12-21-2010, 01:26 PM   #14
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Thought it looked like the tb2525, but now I'm not so sure anymore
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Old 12-21-2010, 01:28 PM   #15
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more like T25 hotside, T20 "cold"side
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Old 12-21-2010, 02:03 PM   #16
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Quote:
Originally Posted by elderc View Post
I don't think its a nissan S13 1.8 turbo, cause it doesnt look like this:
http://cgi.ebay.com/ebaymotors/Turbo...Q5fAccessories
was thinking more like a ca18et (not sure if its the same as the one above though)

http://cgi.ebay.com/ebaymotors/Nissa...item33638faca7

the image sucks so its hard to tell.

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Old 12-21-2010, 02:26 PM   #17
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Looks exactly the same as a sr20 stock turbo t25......Exept for the compressor ind. and exd. fittings.....

Last edited by lazyguy; 12-21-2010 at 04:40 PM.
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Old 12-21-2010, 06:14 PM   #18
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Quote:
Originally Posted by lazyguy View Post
Looks exactly the same as a sr20 stock turbo t25......Exept for the compressor ind. and exd. fittings.....
Looks pretty much identical to my SR20 T25... I'll have to double check to see if my A/R's are the same though.
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Old 12-21-2010, 10:12 PM   #19
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Del. Already mentioned.
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Old 12-21-2010, 10:54 PM   #20
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Quote:
Originally Posted by Rennkafer View Post
Looks pretty much identical to my SR20 T25... I'll have to double check to see if my A/R's are the same though.

sr20 T25 is 52.5mm exducer compressor wheel.
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