Now that I have my car back up and running I have been driving it lately and noticing the extra power it was from stock, but with a 2.8 I should be boosting 17-18 psi right? Well I am only seeing a max of like 13.6 to 14 at wot and this is with my scan gauge and manual gauge, so any help or suggestions are welcome...

also my iat's got up to about 140* and went down but that was the highest but i wasnt running back to back at all...

2007 Chevy Balt ss/sc
mods in sig...

 

Blown rings? Bad bypass solenoid? /fail on boost bypass in tune? Intake manifold gasket bad?

 

im goin with bypass valve opening dumpiing boost

 

ok so your saying i either have a tune limiting my boost or my engine is blown right?

 

ok so i can fix this thru my hptuners right? or do I have to buy another one..

 

If you have HP Tuners and you didn't modify the boost limit tables, then you are stuck at near stock boost, yes. If you are unsure of what to do, you should always ask first. Don't just plow into it because you could really screw some things up when modifying the PCM. Also, get some new tires before the sidewalls on one of your blow out and you die.

 

hpt shoud do the trick.......does the car smoke at all?

 

um first off if you read my sig it says OTTP tuned not self tuned...OK..and 2nd of all these tires have been doing nicely for me and this is my first time with Nexen's but the ride quality is amazing and 3rd of all thx for the help...
yea it should...and when i first started her up it did, but it went away...and now it doesnt

 

bump

 

mine did that when i went to a 2.8.. my tuner had to load the stage 2 (with fuel trims for 60's, of course) into car car, do a couple pulls, then load in my 2.8 tune. do that a few times. he said he pretty much changed small things in the tune until i saw full boost again.

it's an 07 thing.

you could PM 1badBlueberrySC or SCblkRL. they're my tuners.

 

oh coo man thx..

 

sending PM

 

PM Sent

 

What's the normal coolant temp for a stage 2 cobalt?

 

That isn't coolant temp... that is IAT temps!

Normal coolant temps range from 170*-190ish*

A 140* IAT2 is HIGH

 

Your tuners sound like they don't really know whats going on if they are loading in a Stage 2 tune (for a car that isn't stage 2, also the stage 2 tune is a HORRIBLE tune), then modifying it, then modifying it, then again, just to get your boost where it should be.

 

don't get too far ahead of yourself there.....stage tune was the original tune pulled from the car, changes were made to the tune based on the modifications to the car....there is nothing in that tune that is part of the stage tune...the boost is where it should be....just a small quirk of the 07 OS

 

I've never seen that "quirk" in the 07 lol. Must just be something about the cars you work on.

 

ok guys i will be doing what you said when i get home..thx alot and will update when its fixed