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Performance by year?

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Old 03-30-2008, 02:06 PM
  #31  
PorKen
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The Excell chart is nice, but maybe reduce the font to 8, so you can fit more on the screen?

85-86 32V engines have 35mm intake, and 32mm exhaust valves (smaller, shorter, and lighter than the S4/GT 37/33 ). The idle speed is 680 ±40.

Old 03-31-2008, 03:25 AM
  #32  
TheoJ
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Hi,
The service info manual states the S4 (1987 onwards) have 37/34 mm valves. How contradicting )
Theo
Old 03-31-2008, 04:20 AM
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Vilhuer
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Originally Posted by TheoJ
The service info manual states the S4 (1987 onwards) have 37/34 mm valves.
This is perfect example of false data in Porsche factory literature. 33mm is real diameter.



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