boost on a 2.8
boost on a 2.8
What's up guys, I bought an 06 balt ss/sc and the only mod it has is a zzp 2.8 pulley, idk how much increase in boost I'm supposed to get but I don't hit more than like12-13 is that normal? What's a stock pulley size anyway on these? Thanks.
well if you see a 2.8 pulley, and only 13psi then you most likely have injectors as well along with a tune ofcourse. try and take a pic of the fuel rail where we can see the top of the injectors so we can tell you if there stock or not.
stock injectors+2.8 =boom any second
stock injectors+2.8 =boom any second
Last edited by dtec; Aug 16, 2013 at 01:09 PM. Reason: Automerged Doublepost
I like how the sc looks on that blue..but we are unable to see the injectors with those pics..you need to take one right between the sc and the fuel rail so we can see what the top of the injectors look like
or if you see under the fue rail 4 lime green injectors the there stock if there black or any other color that means there upgraded
or if you see under the fue rail 4 lime green injectors the there stock if there black or any other color that means there upgraded
dtec921's Library | Photobucket added 4 more hopefully these are good
dtec921's Library | Photobucket
is this ok?
dtec921's Library | Photobucket
is this ok?
Last edited by dtec; Aug 16, 2013 at 01:31 PM. Reason: Automerged Doublepost
Joined: 12-30-07
Posts: 14,079
Likes: 197
From: NEPA
I see a stock exhaust manifold and stock downpipe.
With those two parts in place you should see much higher than 12-13 psi due to the restriction they produce on a smaller pulley like the 2.8.
You boost by pass maybe shot, and bleeding boost off when it shouldnt be.
With those two parts in place you should see much higher than 12-13 psi due to the restriction they produce on a smaller pulley like the 2.8.
You boost by pass maybe shot, and bleeding boost off when it shouldnt be.
Joined: 05-18-11
Posts: 39,564
Likes: 87
From: West Chicago, IL
I see green under that fuel rail :/ stock injectors... thats not good.
looks like a stock manifold too, is the downpipe and catback stock too? does it have a catalytic converter?
you should be seeing 15-18 psi dude so something isn't right, may well be the tune on stock injectors.
on a sidenote that engine bay looks awesome with those colors
looks like a stock manifold too, is the downpipe and catback stock too? does it have a catalytic converter?
you should be seeing 15-18 psi dude so something isn't right, may well be the tune on stock injectors.
on a sidenote that engine bay looks awesome with those colors
Am on a 2.8 with stock header & dp and i see 15psi max
there are a bunch of people on long island dude. GO HERE https://www.cobaltss.net/forums/nort.../index610.html
and let us know where you are, we might be meeting today somewhere
and let us know where you are, we might be meeting today somewhere
Last edited by jonathan923; Aug 16, 2013 at 01:40 PM. Reason: Automerged Doublepost
I was into hondas before this so I know nothing about these cars haha, do you guys ever have meets around here? im near the border of nassau and queens, and im pretty sure exhaust is all stock @riceburner
Am on a 2.8 with stock header & dp and i see 15psi max
there are a bunch of people on long island dude. GO HERE https://www.cobaltss.net/forums/nort.../index610.html
and let us know where you are, we might be meeting today somewhere
there are a bunch of people on long island dude. GO HERE https://www.cobaltss.net/forums/nort.../index610.html
and let us know where you are, we might be meeting today somewhere
Hopefully for dudes sake it has a bad boost bypass because those injectors appear to be stock. He needs someone with HPT asap.
Joined: 12-30-07
Posts: 14,079
Likes: 197
From: NEPA
I see green under that fuel rail :/ stock injectors... thats not good.
looks like a stock manifold too, is the downpipe and catback stock too? does it have a catalytic converter?
you should be seeing 15-18 psi dude so something isn't right, may well be the tune on stock injectors.
on a sidenote that engine bay looks awesome with those colors
looks like a stock manifold too, is the downpipe and catback stock too? does it have a catalytic converter?
you should be seeing 15-18 psi dude so something isn't right, may well be the tune on stock injectors.
on a sidenote that engine bay looks awesome with those colors
Rice, post the pic u saw green under the fuel rail. I just looked through all the photos, and did not see it.



