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Safe (max) psi on s4 with stock setup?

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Old Aug 28, 2003 | 07:45 PM
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Safe (max) psi on s4 with stock setup?
What is the safe max boost pressure i can run on an s4 with a stock setup meaning stock (engine, ports, turbo, ic, etc.....)

Thanks,


Calvin
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Old Aug 28, 2003 | 07:50 PM
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10psi w/ a fcd
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Old Aug 28, 2003 | 08:00 PM
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I wouldn't even run 10 without atleast a fuel pump or rewire.

I also woudln't try to push 10psi through the stock cats and intake. you are just making more heat in the engine.
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Old Aug 28, 2003 | 08:02 PM
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I saw a grassroots article where they test the stock fuel system, said at 11psi it was maxed out, so I think 10 is the safe zone...
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Old Aug 28, 2003 | 08:06 PM
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im thinkin bout running round 8 psi....i think thats okay without fcd correct?
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Old Aug 28, 2003 | 08:41 PM
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Even with the FCD, I believe 8PSI is a good safe zone.
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Old Aug 28, 2003 | 08:43 PM
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Originally posted by 1Revvin7
I saw a grassroots article where they test the stock fuel system, said at 11psi it was maxed out, so I think 10 is the safe zone...
ya 13 years ago when everything was brand new
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Old Aug 28, 2003 | 10:39 PM
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i hit 9 at redline but i have a home depot intake and a strait pipe with stock mufler for a exsaust. i am planing on rewiring. just a thought.


ej
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Old Aug 29, 2003 | 01:26 AM
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Sorry if this is dumb question but is the a how to on what you guys call "rewiring" or are you just talking about grounding it correctly?

How are you guess increasing the boost?
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Old Aug 29, 2003 | 01:28 AM
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I hit 16 PSI on the stock fueling... Dont know how the motor survived, but it did.

Jarrett
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Old Aug 29, 2003 | 02:22 AM
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Originally posted by Avatar
Sorry if this is dumb question but is the a how to on what you guys call "rewiring" or are you just talking about grounding it correctly?

How are you guess increasing the boost?

http://www.1300cc.com/howto/how2/rewire.htm

My fuel pump is running out at 9psi above 6,000 rpms. I am sure I need to rewire it.
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Old Aug 29, 2003 | 05:09 AM
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RXM307
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How does this rewiring howto differ in a TI?
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Old Aug 29, 2003 | 11:42 AM
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Originally posted by RXM307
How does this rewiring howto differ in a TI?
TI ???
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