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 Post subject: 9-3 stage 1 boost 2.0t
PostPosted: Fri Jan 13, 2017 7:49 am 
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Joined: Sun Dec 11, 2016 8:55 am
Posts: 33
Car Model: 9-3 2.0t vector
Hi, ive got a 93 thats had stage 1 noobtune map, shortly after i fried a coilpack (to be expected at 108k) ive put new plugs and another genuine coil pack on the car. This seems to have cured it.

I believe my car should make 16psi with a stage one map, after taking in on a road test it only made 16psi in 3rd gear, should it not be consistant throughout? 2nd gear made 12psi.

I was using torque app to measure the boost pressure.

Also it was on -21.7 on the vacuum gauge when my foot was off the pedal, would that indicate a boost leak?

It did feel good to drive though ......


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PostPosted: Fri Jan 13, 2017 12:44 pm 
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Joined: Sat Feb 15, 2014 12:52 am
Posts: 2859
Location: Newcastle/Washington (UK)
Car Model: '07 9-3ss Aero
You'll make whatever boost it needs to in order to make the airmass that leads to the torque request that the ECU has at the time. Breathing mods mean you might make this torque with slightly less boost for instance, also easier in the winter when the air is roughly 10% colder/denser than summer.

the -21.7 is correct, probably about -14 to -18 on idle, also normal.

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Dan
'06 9-3ss 2.8 Aero


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PostPosted: Fri Jan 13, 2017 2:29 pm 
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Joined: Sun Dec 11, 2016 8:55 am
Posts: 33
Car Model: 9-3 2.0t vector
Thanks for that, i never checked before it bust a coil and i took the cone fikter off and put the standard back on so maybe its a trick of the mind?


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PostPosted: Fri Jan 13, 2017 4:44 pm 
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Joined: Mon Jul 06, 2009 12:54 pm
Posts: 6245
Location: Saabworld - where everything smells of thinners
Car Model: 9-5 - The dark dame
-21.7 will be mmHg (mm of mercury). The torque app has an annoying feature of using mm of mercury to show pressures less than atmospheric (what car people term vacuum) and switching to PSI or Bar when pressures go above atmospheric i.e. boost.

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9-5 - She's a dame but she sure ain't no lady!

saabnoobtune@gmail.com
Now with added Tech2


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