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need help with a turbo upgrade

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Old Nov 17, 2004
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need help with a turbo upgrade

I need to find a ball bearing T28 turbo to upgrade a used TSI T25 kit i may be getting. I'm a boost n00b. I want to easily just bolt on a T28. Any help would be wonderful!
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Old Nov 17, 2004
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Any garrett T28 will work. If you want a real nice turbo, a garrett GT28RS is a pretty nice one.
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Old Nov 17, 2004
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/\/\that's the exact one i was looking at! Would this one just simply bolt on to the TSI exhaust manifold, wastegate housing and downpipe?
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Old Nov 17, 2004
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another thing that has me stumbling is the inductor side of most of these T28 and GT28's i'm finding. They look different! Here's a pic of the inductor side of a Garrett T25 that comes with the TSI kit:

Then here's a Garret GT28 inductor side:



It's different!
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Old Nov 17, 2004
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Here's a "hi fi" Garrett T28 (makes 25% more power than the standard T28)

i think this one would work:
http://216.105.48.137/index.asp?Page...ROD&ProdID=317

opinions?
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Old Nov 17, 2004
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/\/\i don't think its ball bearing but oh well.
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Old Nov 17, 2004
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Here's a nice GT28R for $900 but the entrance to the charge pipe is different from the T25
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Old Nov 17, 2004
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i believe and garrett turbo will bolt on to the manifold. only b.c thats what you started with.
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Old Nov 17, 2004
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Any garrett with a T25 flange will bolt onto the manifold.

The GT28RS is available with different compressor housings, for instance:



This is one from the cheapturbo.com store.

I would recommend this one, with a bit smaller turbine A/R.


You can buy adapters that bolt to the turbo to convert it to the normal pipe and silicone hose.
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Old Nov 17, 2004
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if you opt against the t28 route, you could always use a DSM 16g, they still spool quick and create great boost, you can ussually find them on dsmtrader.com, just a thought
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Old Nov 17, 2004
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edit: double post

Last edited by EternalBlue_Vic; Nov 17, 2004 at 11:40 PM.
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Old Nov 17, 2004
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hey 4drcivic2k1,

what ya think of this one:
Garrett GT28 (Ball Bearing)
www.hpautoworks.com/garrettgt28.html
i don't understand how to read the a/r stuff, so yeah, would this spool around 3k?
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Old Nov 17, 2004
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That turbo would be decent for your application. Its hard to pinpoint the exact boost threshold but 3k would be a good estimate.
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Old Nov 17, 2004
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/\/\okay, awesome! I might go for this
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Old Nov 18, 2004
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i have a garret T28 ball bearing .48 a/r and .53 a/r. It works great...the only thing id get over than a T28 on a honda is a T3.
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Old Nov 18, 2004
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/\/\Yeah, i might even upgrade to that further down the road. Rev hard T3 manifold, T3 or GT30. I plan on keeping the civic for a very very long time.

So you got 233whp and 214lb ft @12psi on a T28bb?
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