2.0L LNF Performance Tech 260hp and 260 lb-ft of torque Turbocharged tuner version.

New 2008 cobalt BOV?

Old 03-08-2010, 01:23 AM
  #101  
Member
 
ghostss09's Avatar
 
Join Date: 03-08-10
Location: Ft. Campbell, KY
Posts: 258
Thanks: 0
Thanked 0 Times in 0 Posts
that loud sound you typicly hear from bovs is all of that air escaping. you can have that excess air re-routed back into the turbo thus giving you a quicker spool when you shift
ghostss09 is offline  
Old 03-19-2010, 04:22 PM
  #102  
Member
 
Join Date: 03-19-10
Location: Azusa, CA
Posts: 383
Thanks: 0
Thanked 0 Times in 0 Posts
has anyone else used the stock bypass valve spring you can get from Dejon I have it it sounds great and its only like $15 shipped if you guys just want the sound that is what you should get save lots of money over a whole new BOV
brycerice13 is offline  
Old 04-23-2010, 11:05 PM
  #103  
New Member
 
Join Date: 02-05-10
Location: Illinois
Posts: 55
Thanks: 0
Thanked 0 Times in 0 Posts
My tial qr will be here soon enough. Just shipped today, I'll post up some pics of the install, seems that's all this thread is missing. I plan on turbo/header upgrade at some point this is just one of those things to get it done and out of the way now rather than later.
Skunk is offline  
Old 05-21-2010, 08:26 PM
  #104  
Banned
 
Join Date: 04-30-09
Location: Virginia
Posts: 459
Thanks: 0
Thanked 0 Times in 0 Posts
Originally Posted by Skunk View Post
My tial qr will be here soon enough. Just shipped today, I'll post up some pics of the install, seems that's all this thread is missing. I plan on turbo/header upgrade at some point this is just one of those things to get it done and out of the way now rather than later.
Wait..what?
JTurner.CTN is offline  
Old 05-21-2010, 08:28 PM
  #105  
New Member
 
Join Date: 08-07-09
Location: Houston Texas
Posts: 86
Thanks: 0
Thanked 0 Times in 0 Posts
Originally Posted by ghostss09 View Post
that loud sound you typicly hear from bovs is all of that air escaping. you can have that excess air re-routed back into the turbo thus giving you a quicker spool when you shift

Yeah....and?
murderedout09 is offline  
Old 07-29-2010, 12:53 AM
  #106  
New Member
 
Join Date: 04-30-10
Location: Perkasie
Posts: 49
Thanks: 0
Thanked 0 Times in 0 Posts
idk if anyone has said this or not yet but the car peaks around 18psi at full boost when its hot out and around 15 normally... a BOV will make it alot louder but your throwing away your no lift shift and if u make the BOV atmospheric u need to relocate the maf between the BOV and the intake or the car will always run rich unless tuned for... so if ur not racing ur car and want it to sound mean then BOV but the stock BPV is pretty loud with intake and exhaust! and it still works properly with the car.

Thats all ridiculous you technically dont need a BOV or BPV all that does is help prevent compressor surge and relieve pressure on your throttle plate when it closes so u have better throttle response. It not a BOV at all on the stock setup its technically a hybrid diverter valve/Recirculating valve. it doesnt let anything to atmosphere so its not "blowing off". it takes the air the would blow off and recirculates/diverts it back into the intake stream because that is already metered air(MAF sensor)

Last edited by 2010SSTC; 07-29-2010 at 12:53 AM. Reason: Automerged Doublepost
2010SSTC is offline  
Old 09-09-2010, 09:22 AM
  #107  
New Member
 
Join Date: 06-28-10
Location: US
Posts: 82
Thanks: 0
Thanked 0 Times in 0 Posts
Can you by an aftermarket BPV instead of BOV? I am not a fan of the BOV sound. Friend has Caliber SRT-4 with HKS BOV and it is loud as anything.
TotalChaos is offline  
Old 09-20-2010, 06:05 PM
  #108  
New Member
 
Join Date: 04-30-10
Location: Perkasie
Posts: 49
Thanks: 0
Thanked 0 Times in 0 Posts
yeah dejon makes an upgrade kit for the stock bpv its like 15 shipped it sounds nice and it holds as much boost as u want haha
2010SSTC is offline  
Old 04-01-2012, 06:03 PM
  #109  
Senior Member
iTrader: (1)
 
Join Date: 12-20-11
Location: Ottawa
Posts: 1,135
Thanks: 0
Thanked 0 Times in 0 Posts
i am about to install the GMS1 on my car and have a turbo XS intake and intercooler piping on the way. I also have a Turbo XS RFL BOV sitting on my dresser and planning to put it on my cobalt. im just curious if it would make more sense to put it on the cold side of the piping, because its on the cold side on my Ranger?
Kyle09TC is offline  
Old 04-01-2012, 08:05 PM
  #110  
New Member
 
Join Date: 08-07-09
Location: Houston Texas
Posts: 86
Thanks: 0
Thanked 0 Times in 0 Posts
Its typically a good idea to put it on the cold side no closer then 11inches from the throttle body. Reason being the air doesn't have to change directions to escape from the charge pipe. I dunno if there's enough room on the lower pipe for it to work, otherwise the typical spot on the top charge pipe still works.
murderedout09 is offline  
Old 04-01-2012, 10:05 PM
  #111  
Senior Member
iTrader: (1)
 
Join Date: 12-20-11
Location: Ottawa
Posts: 1,135
Thanks: 0
Thanked 0 Times in 0 Posts
Oh I see, well Dejon puts it right after the turbo inlet. Is that just so you don't have to extend the vacuum hose?
Kyle09TC is offline  
Old 04-01-2012, 10:33 PM
  #112  
New Member
 
Join Date: 08-07-09
Location: Houston Texas
Posts: 86
Thanks: 0
Thanked 0 Times in 0 Posts
Originally Posted by Kyle09TC View Post
Oh I see, well Dejon puts it right after the turbo inlet. Is that just so you don't have to extend the vacuum hose?
I dunno why they do that. But anywhere on the boost side of the turbo will work. Some places it just works better if you can get it there.
murderedout09 is offline  
Old 04-01-2012, 11:15 PM
  #113  
Senior Member
iTrader: (1)
 
Join Date: 12-20-11
Location: Ottawa
Posts: 1,135
Thanks: 0
Thanked 0 Times in 0 Posts
Well I'm getting someone to weld the flange on so I can put it where ever, I just thought I would get some input incase there was a reason for dejons placement
Kyle09TC is offline  
Old 04-08-2012, 06:21 PM
  #114  
Senior Member
iTrader: (1)
 
Join Date: 12-20-11
Location: Ottawa
Posts: 1,135
Thanks: 0
Thanked 0 Times in 0 Posts
I am curious if the GMS1 with the learn down feature cancelled will learn the BOV. Any one running a GMS1 with a blow off valve?
Kyle09TC is offline  
Old 04-08-2012, 06:32 PM
  #115  
AWD > FWD
iTrader: (2)
 
TommyP's Avatar
 
Join Date: 04-18-09
Location: Youngstown, Ohio
Posts: 11,122
Thanks: 0
Thanked 1 Time in 1 Post
Originally Posted by Kyle09TC View Post
I am curious if the GMS1 with the learn down feature cancelled will learn the BOV. Any one running a GMS1 with a blow off valve?
No, still causes drivability issues. It's not a learn down thing that's stopping it, it's that when you use a vent to atmosphere blow off valve, you are changing the amount of metered air in the system. The the MAF sensor measures how much air is moving through the system. when you change the recirculation system that the stock BPV uses, you are changing how much air is moving through the system without the car knowing. It can cause you to spike rich every time you let off the throttle, or whenever that bov blows off.
TommyP is offline  
Old 04-08-2012, 09:44 PM
  #116  
New Member
 
Join Date: 08-07-09
Location: Houston Texas
Posts: 86
Thanks: 0
Thanked 0 Times in 0 Posts
Run a tial QR BOV. You can recerculate it back in to the intake.
murderedout09 is offline  
Old 04-22-2012, 06:12 PM
  #117  
New Member
 
Join Date: 04-21-12
Location: Omaha
Posts: 13
Thanks: 0
Thanked 0 Times in 0 Posts
I'm running a turbo xs rfl on a stock turbo and re-routed hoses from the MAP to the BPV to the BOV and have no issues with it and it's not tuned for it yet. Even though it serves no purpose to have it on there. Only other mods are Dejon charge pipes and intake plus there are no DTC nor boost leaks.
tc187 is offline  
Old 04-11-2018, 02:47 PM
  #118  
New Member
 
Join Date: 04-03-18
Location: South Jersey
Posts: 24
Thanked 1 Time in 1 Post
Changed from a recirc stock system on my 335 to a charge pipe and Tial blow off. Sounded great. Not too loud and you actually saw something when you popped the hood.
Not sure how these turbos with the built in blow off work.
TacoCodeRed is offline  
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Dustin24
08-10 SS Turbocharged General Discussion
47
02-12-2016 04:10 PM
jmelton327
New Members Check In!!
2
09-24-2015 01:40 PM
breds2k
08-10 SS Turbocharged General Discussion
19
09-21-2015 10:24 AM
coltontravis
New Members Check In!!
1
09-17-2015 11:01 AM
09BlkCrusader
Parts
30
09-09-2015 04:47 PM


Thread Tools
Search this Thread
Quick Reply: New 2008 cobalt BOV?


Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

© 2019 MH Sub I, LLC dba Internet Brands

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.