997 Turbo / GT2 2006–2012 Turbo discussion on the 997 model Porsche 911 Twin Turbo.
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PSI question.

Old Sep 14, 2011 | 05:31 PM
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PSI question.

Hey Fellas, How much PSI do these VTG turbos produce? I have upgraded VTGs(65mm) and see only 1.0 BAR on my dash when boosting wide open throttle. Does the screen only indicate 1.0 Bar untill the sport button is pushed and then it will indicate 1.2 BAR? What is the max BAR/PSI a VTG can produce before I start checking for boost leaks. Thanks in advanced!
 
Old Sep 15, 2011 | 07:51 AM
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The display will not show past 18psi(1.2 Bar) and the map sensor will not read past 2550mb.
Best to log to see actual boost.
 
Old Sep 15, 2011 | 03:48 PM
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VTGs can boost pretty high. As Venkat said, you need to get a datalogger and read out the pressure to get an accurate number.
 
Old Sep 15, 2011 | 03:56 PM
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What do they boost to? 25 PSI has them pegged?
 
Old Sep 15, 2011 | 10:42 PM
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Originally Posted by salerno713
What do they boost to? 25 PSI has them pegged?
Milou has measured 26-27 psi on his 63.5 mm.
 
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