Engine/Power - EJ20T (pre-2006 WRX and JDM) There is replacement for displacement, it is forced induction - OEM 2.0 liter turbo engines in the USDM WRX. 90-94 Legacy Turbo EJ22 turbo engines can also be discussed here.

I'm running catless and now I see lower boost?

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Old Dec 7, 2003 | 10:07 PM
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I'm running catless and now I see lower boost?

Before the guage was a little above .9 bar. Now it's at around .85 bar.

Is this normal? If so, does this mean I can now raise my boost controller an additional .5 bar?
Old Dec 8, 2003 | 12:47 AM
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i got more boost when i went catless. but if you do raise your boost, make sure you raise it .05 bar. .5 bar would be too much
Old Dec 8, 2003 | 02:02 AM
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lol whoops...

er so I have heard somewhere someone saying "you'll get less boost b/c the turbo operates on backpressure and catless means less" although I didn't think this made sense until I looked at my boost guage. Strange...
Old Dec 8, 2003 | 12:57 PM
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so why am I getting .85 bar? Speculations?
Old Dec 8, 2003 | 01:01 PM
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leak?
Old Dec 8, 2003 | 02:40 PM
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how do I get tested for an exhaust leak?

Car sounds fine... pretty quiet except for the turbo whine and muffler
Old Dec 8, 2003 | 02:53 PM
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verc, did you change out anything else at the same time as the catless?

--
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Old Dec 8, 2003 | 03:51 PM
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um, Gruppe-S changed the axleback, and catless plus gaskets...
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