2nd Generation Specific (1986-1992) 1986-1992 Discussion including performance modifications and technical support sections.

which trim compressor wheel is this?

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Old Jun 16, 2011 | 11:58 AM
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which trim compressor wheel is this?

After reading Hypertek's thread about building a hybrid turbo, and my own turbo starting to go out on me; I've decided to build my own hybrid.

I've got a spare s4 turbocharger sitting around, and a full t3 rebuild kit on the way from gpop.... so I need a backing plate, the housing and a compressor wheel. I found this wheel for sale from a supplier, it says to4b to4e... but doesn't specify a trim. Any clues?
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Old Jun 16, 2011 | 12:00 PM
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Haha, here's the link, sorry.

http://baeturbosystems.com/compresso...1-1-1-2-2.aspx
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Old Jun 16, 2011 | 12:14 PM
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Comes very close to a v-trim. FC3Spro has a very thorough guide. http://www.fc3spro.com/TECH/TURBO/tmodels.html
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Old Jun 16, 2011 | 12:35 PM
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Awesome, thanks!
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Old Jun 16, 2011 | 01:21 PM
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S- trim.

Rotary Rocket posted this in my thread a little while ago. I found it very useful.

8 Blade T04B:
409179-0021, 70x48.36 mm, 48 trim, S trim (37 lbs/min)
409179-0022, 70x49.50 mm, 50 trim
409179-0023, 70x51.61 mm, 54 trim
409179-0024, 70x54.00 mm, 60 trim, U trim
409179-0025, 70x55.37 mm, 63 trim, V trim (48 lbs/min)
6 blade T04B
409826-0006, 70x48.35 mm, 48 trim
409826-0012, 70x52.85 mm, 57 trim
409826-0014, 70x55.30 mm, 62 trim, V trim (48 lbs/min)
409826-0015, 70x58.40 mm, 70 trim, H trim (49 lbs/min)

Turbonetics 60-1, 76.2x59.0 mm (57 lbs/min)
Turbonetics 62-1 (60 lbs/min)
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Old Jun 16, 2011 | 01:58 PM
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^correct s-trim. Sorry, I misread the chart I linked to. Glad some people are paying attention.
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Old Jun 16, 2011 | 02:14 PM
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I wouldn't waste my time with an S-trim wheel. That'll barely outflow the stock compressor.

Also, it's much easier to just find a complete used T04b to steal parts from. A matching compressor cover can be very difficult to find by itself, and new ones go for over $200 from Turbonetics. Garrett provides almost no info on old model parts like T04b stuff.

Last edited by RotaryRocket88; Jun 16, 2011 at 02:17 PM.
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Old Jun 16, 2011 | 03:59 PM
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www.turbocharged.com has good prices on turbonetics stuff. a brand new 60-1 wheel, hi-fi cover, and a matching backing plate is under $200 shipped. this would bolt up to stock turbo center
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Old Jun 16, 2011 | 05:23 PM
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Yea, I'm looking for a V-trim wheel. Thanks for the help and the links!
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Old Jun 16, 2011 | 05:29 PM
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Anybody have a used to4b with a v-trim around for sale? lol...
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Old Jun 17, 2011 | 10:04 AM
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I JUST bought one of these. I sucked a nut in my t04b hybrid.

http://cgi.ebay.com/ebaymotors/Turbo...item415acab06c
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