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

power limits with CAT? (TII)

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Old Oct 20, 2007 | 06:38 PM
  #1  
$P€€DD€VIL's Avatar
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Schnitzel
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From: Austria
power limits with CAT? (TII)

I have an old turboback Racingbeat exhaust on my S4 TII with the catalytic converter welded in.


the cat is like this:




3" Pipe direct welded on the cat




I'm running 0,5 Bar (7,25PSI) right now, I don't know how much power it has, but I was wondering what the limits WITH a stock or at least Legal Cat are, how much HP and boost pressure.
In my country I would get ALOT of problems if they find out that I have no cat.

so what is possible WITH Catalytic Converter?
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Old Oct 21, 2007 | 12:10 AM
  #2  
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From: Mesquite, TX
Chris Ott from Rotary Performance in Garland Texas (www.RX7.com) made over 400 to the wheel with a catalytic converter. I think it might have been running a haltech but I'm not sure. I do know it's black...and it's freaking sweet!
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Old Oct 21, 2007 | 11:59 AM
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I had a S4 mazda reman (stock port) haltech, To4e 57 trim made 288@10psi RWHP pump gas
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Old Oct 21, 2007 | 01:58 PM
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bigger cat would be better!
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