08-10 SS Turbocharged General Discussion Discuss the 2008 - 2009 Chevy Cobalt SS Turbocharged. On sale since the second quarter of 2008.

Cobalt ss/tc 09 boost question

Old Mar 28, 2018 | 11:54 AM
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Ian Maddox's Avatar
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Cobalt ss/tc 09 boost question

Alright this might sound like a stupid question but hear me out, I have an 09 ss/tc and when I floor it I ramp up to 25. Lbs of boost, is this the normal amount or is it higher. As far as I know all it has is the gm stage 1 turbo upgrade
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Old Mar 28, 2018 | 01:08 PM
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seems high for your altitude and temperature
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Old Mar 28, 2018 | 01:26 PM
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Yeah thats high. Sounds like it has an aftermarket tune. but you say it has the GM 3 bar sensors right? They are blue and 1 is located on the intake manifold
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Old Mar 28, 2018 | 04:37 PM
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Like 25lbs spike or consistent 25lbs? I put gms1 on mine last week and while driving it over the weekend I saw go up and spike just for a sec at 24/25 a couple times but immediately went down to about 20/21 during a 3rd gear pulls. It was pretty high humidity out and about 60*
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Old Mar 29, 2018 | 09:01 AM
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Originally Posted by Kolt
Like 25lbs spike or consistent 25lbs? I put gms1 on mine last week and while driving it over the weekend I saw go up and spike just for a sec at 24/25 a couple times but immediately went down to about 20/21 during a 3rd gear pulls. It was pretty high humidity out and about 60*
it is a consistent 25 lbs no matter what gear and it's almost instant
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Old Mar 29, 2018 | 09:02 AM
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Originally Posted by leemanfor
Yeah thats high. Sounds like it has an aftermarket tune. but you say it has the GM 3 bar sensors right? They are blue and 1 is located on the intake manifold
I will have to check on the 3 bar sensors if they are on it I am not aware
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Old Mar 29, 2018 | 10:02 AM
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I had gms 1 at one point and can tell you you should not be at 25lbs consistently. Your car has got a different tune in it.
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Old Mar 30, 2018 | 08:24 PM
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Originally Posted by 63 Nova SS
I had gms 1 at one point and can tell you you should not be at 25lbs consistently. Your car has got a different tune in it.
alright thank you I wondered
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