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 Oct 10, 2011 | 11:51 AM
  #2051  
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From: Alabama
Originally Posted by cubaniche
LOL Yeah, tell me about it. As far as the relocate, Im not too keen on blowby and the like building up on the MAF. Our MAFs are already touchy as it is. Im probably making it seem worse than it is. Im just afraid of going through MAFs every year. The VTA is awesome though.
I would say the majority of blowby gets trapped in the Intercooler.
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Old Oct 14, 2011 | 12:33 PM
  #2052  
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That is why I check mine every 2 months, well until I get my DDMWorks Catch Can.
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Old Oct 14, 2011 | 03:49 PM
  #2053  
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Yeah not sure How to pipe a catch can in now that the back breather on the VC has nowhere to go, I put one of those small filters on there.
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Old Oct 16, 2011 | 04:17 AM
  #2054  
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From: Phoenix
Got my car tuned today and boy do i love this turbo. Anybody have any recent dyno graphs of the BNR?
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Old Oct 16, 2011 | 10:15 AM
  #2055  
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Originally Posted by BlackBeast!
Got my car tuned today and boy do i love this turbo. Anybody have any recent dyno graphs of the BNR?
How hard was the swap?
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Old Oct 16, 2011 | 11:39 AM
  #2056  
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From: TUCSON AZ
Originally Posted by BlackBeast!
Got my car tuned today and boy do i love this turbo. Anybody have any recent dyno graphs of the BNR?
I think I am the only one who wanted to put a graph up....
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Old Oct 16, 2011 | 02:56 PM
  #2057  
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From: Phoenix
Originally Posted by iboost
How hard was the swap?
Really not bad at all just the oil and coolant lines to the turbo were a pain other than that pretty easy

Originally Posted by drewbroo
I think I am the only one who wanted to put a graph up....
Yeah drew i seen your graph. We are trying to figure out that dip up top
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Old Oct 16, 2011 | 03:40 PM
  #2058  
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From: TUCSON AZ
Originally Posted by BlackBeast!
Really not bad at all just the oil and coolant lines to the turbo were a pain other than that pretty easy



Yeah drew i seen your graph. We are trying to figure out that dip up top
Play with the exhaust side cam tables.
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Old Oct 16, 2011 | 04:06 PM
  #2059  
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From: Phoenix
Originally Posted by drewbroo
Play with the exhaust side cam tables.
ok will do. Im only at 21* on a 50/50 so theres still room to play. I just wanna keep it kind of conservative until i buy a damn clutch lol

It pulls harder than my 100% e85 tune on stock turbo. I ran a bolt on cammed 6.0 gto last night and we were pretty even until about 120 he walked away damn ls motors haha
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Old Oct 16, 2011 | 05:04 PM
  #2060  
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From: TUCSON AZ
Originally Posted by BlackBeast!
ok will do. Im only at 21* on a 50/50 so theres still room to play. I just wanna keep it kind of conservative until i buy a damn clutch lol

It pulls harder than my 100% e85 tune on stock turbo. I ran a bolt on cammed 6.0 gto last night and we were pretty even until about 120 he walked away damn ls motors haha
He shouldn't have been walking from you.... How many lbs are you running? Also I was running out of fuel on the 50/50 with the BNR. Overall the car ran better with higher boost and an E30 Mix.
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Old Oct 16, 2011 | 05:34 PM
  #2061  
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From: Phoenix
Originally Posted by drewbroo
He shouldn't have been walking from you.... How many lbs are you running? Also I was running out of fuel on the 50/50 with the BNR. Overall the car ran better with higher boost and an E30 Mix.
Im only at 23 psi like i said im not going too crazy YET. And cammed ls motors are no joke up top i did pretty well considering im holding back alot
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Old Oct 16, 2011 | 06:19 PM
  #2062  
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From: TUCSON AZ
Originally Posted by BlackBeast!
Im only at 23 psi like i said im not going too crazy YET. And cammed ls motors are no joke up top i did pretty well considering im holding back alot
Do 26-27 PSI on the E30 Blend, and you will be very very happy. With the BNR, there is no psi drop up top either
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Old Oct 16, 2011 | 08:23 PM
  #2063  
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From: Phoenix, AZ
Originally Posted by BlackBeast!
ok will do. Im only at 21* on a 50/50 so theres still room to play. I just wanna keep it kind of conservative until i buy a damn clutch lol

It pulls harder than my 100% e85 tune on stock turbo. I ran a bolt on cammed 6.0 gto last night and we were pretty even until about 120 he walked away damn ls motors haha
Mario? What does he trap in his GTO?
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Old Oct 16, 2011 | 10:25 PM
  #2064  
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From: Phoenix
Originally Posted by tglems
Mario? What does he trap in his GTO?
Yeah mario but he hasnt been to the track since he's had the cam
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Old Oct 16, 2011 | 10:59 PM
  #2065  
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From: kansas
what do you guys think 27psi on just pump gas would put down with the 2871? im thinking 380's to the wheels with similar torque.
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Old Oct 16, 2011 | 11:10 PM
  #2066  
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From: TUCSON AZ
Originally Posted by Dart_SI
what do you guys think 27psi on just pump gas would put down with the 2871? im thinking 380's to the wheels with similar torque.
27 PSI you should be over 390 w / 415 + ftlbs.
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Old Oct 16, 2011 | 11:12 PM
  #2067  
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From: kansas
Originally Posted by drewbroo
27 PSI you should be over 390 w / 415 + ftlbs.
sweet. and seeing how i have area47 to tune me im sure ill hit those numbers. just need to save up for my clutch now! i know how to install clutches now too, turns out its easier than we think, just a tad time consuming.
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Old Oct 17, 2011 | 12:43 AM
  #2068  
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From: Huachuca city, AZ
Originally Posted by drewbroo
Do 26-27 PSI on the E30 Blend, and you will be very very happy. With the BNR, there is no psi drop up top either
I can only do 26psi lol. Hoping Vince gets back to me about doing a e mix for my none Bnr 2871.
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Old Oct 17, 2011 | 01:56 AM
  #2069  
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From: Phoenix
Do you guys think i need the 3 bar map to run about 25psi?
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Old Oct 17, 2011 | 09:04 AM
  #2070  
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I havent put up a graph simply because I havent dynod since the swap. Been too busy with life and work but as soon as I do, Ill post it up no matter the numbers. My car has always been an underperformer LOL I have to do twice the amount of mods to get what you guys normally get on stock turbo with full E, seems like.
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Old Oct 17, 2011 | 09:09 AM
  #2071  
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Originally Posted by BlackBeast!
Do you guys think i need the 3 bar map to run about 25psi?
Nope. FF-ace ran 25-30 psi on his stock 2.5 bar maps with no issues.
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Old Oct 17, 2011 | 10:51 AM
  #2072  
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From: Phoenix
Originally Posted by Terminator2
Nope. FF-ace ran 25-30 psi on his stock 2.5 bar maps with no issues.
cool thanks term
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Old Oct 17, 2011 | 02:52 PM
  #2073  
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Originally Posted by Terminator2
Nope. FF-ace ran 25-30 psi on his stock 2.5 bar maps with no issues.
ya and still on the 2.5... still running the last tune you sent me awhile back i have a cracked manifold or bad lash adjusters i get a tick on cold starts but goes away once warmed up.
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Old Oct 17, 2011 | 04:47 PM
  #2074  
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From: kansas
When I thow the turbo on I gotta drive 2 hours to get tuned. Think this will cause issues? Also I read that its possible to run a bov to vent atmosphere without a maf relocate. Im going to recirculate it anyway but id like to know. The plumbing of the vaccine lines for this turbo is also confusing me. Can anyone post some detailed pics of their 2871 setup?
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Old Oct 17, 2011 | 05:46 PM
  #2075  
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LOL Did your phone autocorrect VAC linces to vaccine lines?

There are pics in this thread and descriptions but I can take one if you want and post it later. Im considering changing the setup to run the BOV straight off VAC and not off the bypass controller but cant figure out a way to get the BOV to fall in line when I do that. It runs really bad. I guess Im not adjusting the BOV in the right direction or something.
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