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

Streight true exaust line

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Old Dec 29, 2003 | 08:50 PM
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From: Sherbrooke,QC,Canada
Streight true exaust line

I ordered a streight true exaust line + muffler with no cats (I live in Canada, with no emission control).

If i port the wastegate to the limit of the s4 wastegate flap, will i overboost and hit the fuel cut ?

Or i'll be able to regulate it with my boost controler ?

It will be my only mod for now.
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Old Dec 29, 2003 | 08:58 PM
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From: Sherbrooke,QC,Canada
btw, the exaust line is 3"
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Old Dec 29, 2003 | 09:29 PM
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From: Directly above the center of the earth (York, PA)
the stock wastegate, even ported the whole way out, won't keep up with your 3" exhaust, I don't think you'll be able to stop the boost from hitting 8.6 psi...
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Old Dec 30, 2003 | 12:34 AM
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From: Auckland, New Zealand
Re: Streight true exaust line

Originally posted by hugo20
I ordered a streight true exaust line...
Huh?
If i port the wastegate to the limit of the s4 wastegate flap, will i overboost and hit the fuel cut ?
Probably. You should get a bigger wastegate flap fitted so you can port the wastegate bigger.
Or i'll be able to regulate it with my boost controler ?
Boost controllers cannot lower boost, they can only raise it. Do not fit a boost controller until your wastegate can control boost on it's own.

Last edited by NZConvertible; Dec 30, 2003 at 12:40 AM.
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Old Dec 30, 2003 | 09:31 PM
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From: Sherbrooke,QC,Canada
my english is not real good but im sure that you understanded real good what i wanted to say. tnx
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