Only showing 10-10.5 psi on guage...
Hi PhantomTA, I know you from the f-body sites 
As far as your PSI, how many miles do you have on it? If you just got it, you may not hit full boost for a few hundred miles. Just redline it in 3rd, you’ll hit 12

As far as your PSI, how many miles do you have on it? If you just got it, you may not hit full boost for a few hundred miles. Just redline it in 3rd, you’ll hit 12
Originally Posted by JonyyB
Hi PhantomTA, I know you from the f-body sites 
As far as your PSI, how many miles do you have on it? If you just got it, you may not hit full boost for a few hundred miles. Just redline it in 3rd, youll hit 12

As far as your PSI, how many miles do you have on it? If you just got it, you may not hit full boost for a few hundred miles. Just redline it in 3rd, youll hit 12
i had 10k miles on my car and didnt see the full 12 psi until i gutted my airbox. im not sure if thats what did it, but that would be one heck of a coincidence, because now i see all 12psi when flooring it in 2nd.
Originally Posted by JonyyB
Hi PhantomTA, I know you from the f-body sites 
As far as your PSI, how many miles do you have on it? If you just got it, you may not hit full boost for a few hundred miles. Just redline it in 3rd, youll hit 12

As far as your PSI, how many miles do you have on it? If you just got it, you may not hit full boost for a few hundred miles. Just redline it in 3rd, youll hit 12
Must be your elevation. I know you guys are from the same state but just being uphill can make a difference. I would take it back, tell them you want a new one. Your entitled to the same car everyone else has.
Originally Posted by BLKSS
Must be your elevation. I know you guys are from the same state but just being uphill can make a difference. I would take it back, tell them you want a new one. Your entitled to the same car everyone else has.
Originally Posted by thunderbalt73
i just rolled over 1400 and i hit 12 every time why do these cars all act differently some not till they get a few miles sum all the time?
PhantomTA..........You still have the bird for sale?
Mine didn't show full PSi either til I got around 3500 miles, I put 4000 miles on it in 2 1/2 weeks. Geez. Just keep an eye on it. If it doesn't change, take it to the dealer?
What color Cobalt you have?
Mine didn't show full PSi either til I got around 3500 miles, I put 4000 miles on it in 2 1/2 weeks. Geez. Just keep an eye on it. If it doesn't change, take it to the dealer?
What color Cobalt you have?
I'm at around 800ft asl and only get 11psi at most , i have 3700 miles and a k&n drop in . I'm wondering if the guage isnt showing full boost , or if the bypass butterfly isnt adjusted right . Might take it back to the dealer and see whats up , at 800ft asl this thing shouldnt be effected by elevation
I didn't really see above 10 psi until after about 3000 miles. Of course I took it real easy on the car till I got about 3000 miles on it, too. Now with stage 2 I see 12.5 at WOT somewhere around 3500 RPM, then somewhere after about 5000 RPM it climbs and hits max 15 somewhere above 6000 RPM. Since I'm driving I dont' really have time to look at the guage and the tach at the same time, so I have to guess as to what the RPMs are at. Once of these days I'll get someone to Video it while I'm driving so I can see it all for myself.
You also have to remember that the stock boost guage isn't really 100% accurate, so don't put a lot of trust into what it says.
You also have to remember that the stock boost guage isn't really 100% accurate, so don't put a lot of trust into what it says.
Originally Posted by Blackbirdws6zzz
PhantomTA..........You still have the bird for sale?
Mine didn't show full PSi either til I got around 3500 miles, I put 4000 miles on it in 2 1/2 weeks. Geez. Just keep an eye on it. If it doesn't change, take it to the dealer?
What color Cobalt you have?
Mine didn't show full PSi either til I got around 3500 miles, I put 4000 miles on it in 2 1/2 weeks. Geez. Just keep an eye on it. If it doesn't change, take it to the dealer?
What color Cobalt you have?
Sunburst Orange...
Originally Posted by PhantomTA
Yep... Hoepfully will be gone soon tho.
Sunburst Orange...
Sunburst Orange...
Good luck on the sale Dave, let me know when you get all your stuff so we can tune the cobalt.
my car also only hits 10 psi and just recently hit 10.5. I just put the k&n filter in it and its still the same. It only has 1500 miles on it so hopefully it will go up or im gonna get pissed.
Originally Posted by PhantomTA
Any thoughts? Car is completely factory stock.
Originally Posted by ENUFPWR
Traitor... LOL
Good luck on the sale Dave, let me know when you get all your stuff so we can tune the cobalt.
Good luck on the sale Dave, let me know when you get all your stuff so we can tune the cobalt.
way to Bash him ENUFPWR!...wont even help the guy out eh!!!


