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

Bnr k04-gt28

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Old 02-01-2011, 09:51 AM
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Ah...okay cool.
Old 02-01-2011, 10:00 AM
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if you guys need a new k04 turbo, I have one left

https://www.cobaltss.net/forums/part...-turbo-223401/
Old 02-01-2011, 12:02 PM
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Yeah, I wondered if I could just keep my stocker and ask him to keep the core charge.
Old 02-01-2011, 12:15 PM
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Originally Posted by HHRSSouth
Hey Paul.
Call me before you come. These LNF's are about to hit. I don't know how many will be in stock if they will be. I have 5 of the 2860's sold right now.
As for core, I need a core returned. I can't supply turbos without cores.
Looking forward to meeting you.
Bryan@BNR

Spoken for and sold to me are 2 different things. But I guess people could have purchased them and not recieved them yet, yes thats feasible.

As far as me getting one, well I'm not ripping my turbo out of my HHR SS if I don't have an exact turn around time. I don't want my SS sitting in my garage for weeks on end.
Personally, if I say "I have x sold," I mean it's spoken for. If I say "I sold x," I mean it's gone.

I'm not ripping out mine either 'til I have it and I've driven out to get it tuned!
Old 02-01-2011, 12:26 PM
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^^^ Ditto. I need to have the new one ready to go the day I pull mine off.
Old 02-01-2011, 12:55 PM
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Between those two, 11psi. I'd go with 8psi actually.
Old 02-01-2011, 12:56 PM
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If you're going to use the factory boost control, go with the 8. If you're going to run a MBC, go with the 11.
Old 02-01-2011, 01:08 PM
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You will get alot of bov flutter with an 11 or 12 with the factory boost control. I have an 8 and it still not sounding perfect.
Old 02-01-2011, 01:16 PM
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I thought we were talking WG spring, Im sorry. I just browsed across quick and didn't read back, that's my fault
Old 02-01-2011, 02:13 PM
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Ok so I talked to BNR yesterday and im about to buy the stage 2 turbo upgrade so with the wastegate spring I will only be able to run 8psi? Because the stage 2 u need to run an aftermarket BOV which ill be using my HKS...I need more info! Lol
Old 02-01-2011, 03:17 PM
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WG spring PSI terms is not boost. Its rated in atmospheric PSI if Im not mistaking. It does not mean you can only run 8psi as far as boost is concerned.
Old 02-01-2011, 03:45 PM
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Thats the "stock" pressure. If you removed the factory boost solenoid, yes you would only get 8psi. If you goto a higher spring the tuning is a bit trickier and you need to have Vince hard set a lower WG % limit to limit the spiking. I would stick to the 8 for the WG Spring if you plan on using Factory Boost Control.
Old 02-01-2011, 04:00 PM
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Alright sweet guys thanks I appreciate it just was a little confused....can I run an electronic boost controller like a Greddy Profec?
Old 02-01-2011, 04:10 PM
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You can but I would either run the stock control or a MBC personally.
Old 02-01-2011, 04:43 PM
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I think we're done with the tuning, looks really solid! 46.7 MAF peak and 36.1 VE. Those were the highest Ive seen. 4.49 60-100 was the best yet also. Im curious to see what this will put down on a dyno now!
Old 02-01-2011, 04:55 PM
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Originally Posted by BYT*SS*TURBO
I think we're done with the tuning, looks really solid! 46.7 MAF peak and 36.1 VE. Those were the highest Ive seen. 4.49 60-100 was the best yet also. Im curious to see what this will put down on a dyno now!
tglem's 2871?
Old 02-01-2011, 05:01 PM
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Correct lol. Thats what the thread's about :p I sent you an update BTW.
Old 02-01-2011, 05:08 PM
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Originally Posted by BYT*SS*TURBO
Correct lol. Thats what the thread's about :p I sent you an update BTW.
Yeah I guess the thread has kinda centered on him lately huh? lol

Sweet! Thanks man. I will load it up tonight after work and send you the feedback
Old 02-01-2011, 05:14 PM
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Good deal!
Old 02-01-2011, 05:22 PM
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What kinda power do u think ill put down with the stage 2 turbo and being fully bolted? Ill be using trifecta as my tuner also because vince lives an hour away from me Haha and nick your too far away!
Old 02-01-2011, 05:27 PM
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I'm glad there will be some Trifecta mules out there before I pick up one of these upgrades. Anxious to see how these upgrades compare to some of the full blown kits offered out there.
Old 02-01-2011, 05:31 PM
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Originally Posted by BYT*SS*TURBO
I think we're done with the tuning, looks really solid! 46.7 MAF peak and 36.1 VE. Those were the highest Ive seen. 4.49 60-100 was the best yet also. Im curious to see what this will put down on a dyno now!
hot damn!
Old 02-01-2011, 05:53 PM
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damn lol HHR what turbo did u get? the stage 1 or 2? i am gonna go with the stage 2 here in a day or so im pretty sure...
Old 02-01-2011, 05:55 PM
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Originally Posted by HHRSSouth
I've ran into the bastard of all bolts.
The bolt that secures the turbo to the engine brace/bracket. I'd like to know how many ft/lbs that sucker is tightened down to because i can guarantee you its around 175-200 ft/lbs.
Could you snap a few pics so that I can see what I'll be getting into?
Old 02-01-2011, 06:05 PM
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Originally Posted by HHRSSouth
I've ran into the bastard of all bolts.
The bolt that secures the turbo to the engine brace/bracket. I'd like to know how many ft/lbs that sucker is tightened down to because i can guarantee you its around 175-200 ft/lbs.
There are a number of bolts down there that tighten up over time...spray some grease, grab a beer, and then go back to bench press your car :-)


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