997 Turbo / GT2 2006–2012 Turbo discussion on the 997 model Porsche 911 Twin Turbo.
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Boost gauge on TTS, stock

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Old May 7, 2014 | 04:48 PM
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COBB Datalog... Yes that what I'm thinking, only reads 15 psi
 
Old May 7, 2014 | 04:52 PM
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Originally Posted by webcarconnection
COBB Datalog... Yes that what I'm thinking, only reads 15 psi
Very cool. That makes sense then. I wonder if I view it in "bars" if it will read higher?
 
Old May 7, 2014 | 05:00 PM
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14.7 psi it's 1 bar
 
Old May 8, 2014 | 05:22 AM
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Originally Posted by CodeBlue911

Also, I noticed when you're at max throttle the boost pops up to 18-ish, but then goes down as the rpms build. Then, it's switches gears, boost peaks to 18-ish, and then it goes down as the rpms build, etc.
Is that normal?

Thanks!
My boost doesn't back down until i get off the throttle.

started at 2nd gear, 3rd, 4th and 5th has constant boost across the rev range.

 
Old May 8, 2014 | 09:50 PM
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Do you have a 997.2? And if so, is that with sport chrono?

Just want to clarify....does my 997.2 Turbo S have 15 psi peak boost all the time?

Thanks!


Originally Posted by maverickdxb
My boost doesn't back down until i get off the throttle.

started at 2nd gear, 3rd, 4th and 5th has constant boost across the rev range.

 
Old May 8, 2014 | 11:35 PM
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Originally Posted by CodeBlue911
Do you have a 997.2? And if so, is that with sport chrono?

Just want to clarify....does my 997.2 Turbo S have 15 psi peak boost all the time?

Thanks!
Mine is a 997.1 and it has sport chrono, when i recorded this, the SC was off.

With SC on, it goes higher with the little up arrow at the end of the bar. The 997.2 should also have peak boost like 997.1 but i don't know if its 15psi.
 
Old May 9, 2014 | 07:46 AM
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Below is a pic from my 2011 Turbo S instruction manual. It says the Turbo S max boost is 17psi.
Is that incorrect/typo?? I've read here and on other locations on the web that the 997.2 over boost on the Turbo and constant boost on the Turbo S is 14.5.

Also, the readout on my center display goes to 18psi. The horizontal bar actually has: 0,9,18.
 
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Last edited by CodeBlue911; May 9, 2014 at 07:48 AM.
Old May 9, 2014 | 08:18 AM
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yes with the SC on, you will have max boost @ 17psi. The boost gauge is a fancy little thing. It is not an accurate measurement on our vehicles. With my ECU tuned, i have more boost now on the car and it doesn't reflect accurately on my gauge. Do a forum search, there is info on boost gauge readings.
 
Old May 9, 2014 | 09:08 AM
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All 997.2 that I know only read 15psi on there gauge
 
Old May 9, 2014 | 01:52 PM
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Originally Posted by webcarconnection
all 997.2 that i know only read 15psi on there gauge
here's mine...
 
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Last edited by CodeBlue911; May 9, 2014 at 01:55 PM.
Old May 9, 2014 | 02:03 PM
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So does a car equipped with Sport Chrono have more boost? If I want max performance should I put the car in Sport Chrono (stopwatch) and Sport Plus mode?

My car has a GIAC tune so not sure any of this would make a difference.
 
Old May 9, 2014 | 04:25 PM
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Originally Posted by CodeBlue911
here's mine...
Also read 18psi in numeric mode?
 
Old May 9, 2014 | 04:26 PM
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Originally Posted by alevine
So does a car equipped with Sport Chrono have more boost? If I want max performance should I put the car in Sport Chrono (stopwatch) and Sport Plus mode?

My car has a GIAC tune so not sure any of this would make a difference.
If you want the best out of the car run it with the sport plus bottom on, thats it
 
Old May 9, 2014 | 04:32 PM
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I've seen 23 psi on my numeric display recently. Blips during part throttle but def see over 15psi displayed.
 
Old May 9, 2014 | 06:34 PM
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Well, I believe I saw my friends on stock form lol... I have to check mine because doesn't pass 15 psi

23PSI it's serious boost... that's on 100oct gas or 93/91 oct pump gas?
 


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