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Old 11-02-2005, 08:46 AM   #1
jamp555
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Join Date: Feb 2005
Location: Sheffield Uni / N Wales, UK
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Default EJ16 Oil-free Turbo Project - Which turbo to use?

Hi All

I'm doing a uni project looking into oil-free turbochargers using foil bearings. Nasa have already done some work on this here.

I'd like to convert an existing turbo to use a foil bearing and test it, on a rig first then hopefully in my own car, so which turbo should I use? Preferably something cheap to get hold of in the UK (i.e. something the WRX guys usually upgrade from). My car is a 95 Impreza 1.6GL AWD with dual port exhausts and N3 ECU. I believe it's virtually identical to the EJ18. I have an Apexi S-AFC2 waiting to go in when I get the funds to have it dyno mapped (N/A to start with), what timing controller should I get when I go turbo or should I get an EManage and sell the SAFC?

The primary requirement of the car will be to test this turbo bearing, but obviously I'd like to make as much reliable power as poss. Ideally I'd like to just get it turbo'd at first for minimal expense, then do heads etc as funds allow (student!) I know the EJ16 was turbo'd by the dealers in Greece as their tax laws make bigger engines impractical, they reach 180hp so hopefully that's not an unrealistic figure to aim for. I'll be using a FMIC as I want stealth

Anyways that's a lot of waffle for a fairly simple question! In summary, which turbo and how much boost is suitable for use on the EJ16?

Cheers,

Ben

Last edited by jamp555; 11-02-2005 at 09:09 AM.
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Old 11-02-2005, 12:32 PM   #2
White 2.5rs
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Hydra+HMist+PPG+35R=DEATH

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good luck on this, sounds interesting, however I myself would not even want to spend my time on this
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Old 11-03-2005, 03:36 PM   #3
jamp555
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Thanks Why wouldn't you want to spend your time on it though? Do you mean it's not worth turboing an EJ16, or such a project just isn't your thing?

After some searching all I can see is EJ18 turbo projects using TD04s, but they seem to use 6psi of boost instead of the standard 8psi, is this correct?

Cheers.
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Old 11-03-2005, 05:43 PM   #4
White 2.5rs
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Hydra+HMist+PPG+35R=DEATH

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because the work i did on my car was "a project" enough
id rather stick w/ something that i know will last, not having to worry about the bearings fail

good luck though
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Old 11-03-2005, 05:54 PM   #5
ai42
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TD04 is a nice turbo should work well if an EJ16 is anything like the EJ18. However, I don't quite understand how you are going to fabricate your own foil bearings. I mean it sounds really cool and I've heard of air pressure bearings being researched for this kind of purpose as well (not simply turbo air pressure but like 50+ psi).
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