Welcome to the North American Subaru Impreza Owners Club Thursday October 23, 2014
Home Forums WikiNASIOC Products Store Modifications Upgrade Garage
NASIOC
Here you can view your subscribed threads, work with private messages and edit your profile and preferences Home Registration is free! Visit the NASIOC Store NASIOC Rules Search Find other members Frequently Asked Questions Calendar Archive NASIOC Upgrade Garage Logout
Go Back   NASIOC > NASIOC General > Newbies & FAQs

Welcome to NASIOC - The world's largest online community for Subaru enthusiasts!
Welcome to the NASIOC.com Subaru forum.

You are currently viewing our forum as a guest, which gives you limited access to view most discussions and access our other features. By joining our community, free of charge, you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is free, fast and simple, so please join our community today!

If you have any problems with the registration process or your account login, please contact us.
* Registered users of the site do not see these ads.
Reply
 
Thread Tools Display Modes
Old 09-24-2008, 12:12 PM   #51
Audiosavvy
Scooby Guru
 
Member#: 150794
Join Date: Jun 2007
Chapter/Region: SCIC
Location: Bakersfield, CA
Vehicle:
Qcab dakota 4x4
LT1 Formula Firebird

Default

Quote:
Originally Posted by theshadowonme View Post
Seriously?

Was this thread really needed?

Seriously?

Was this post really needed?
* Registered users of the site do not see these ads.
Audiosavvy is offline   Reply With Quote
Old 09-24-2008, 01:44 PM   #52
stay_cold
Scooby Newbie
 
Member#: 187425
Join Date: Aug 2008
Chapter/Region: MAIC
Vehicle:
2007 VF39'd EWG'd
DPS tuned street machine

Default

if you want noise, buy an intake way less harmful for your car
stay_cold is offline   Reply With Quote
Old 09-24-2008, 02:04 PM   #53
Badler
Scooby Guru
 
Member#: 133597
Join Date: Nov 2006
Chapter/Region: SCIC
Location: Orange
Default

Quote:
Originally Posted by stay_cold View Post
if you want noise, buy an intake way less harmful for your car
That all depends on which intake. Some are way MORE harmful than a BOV.
Badler is offline   Reply With Quote
Old 09-24-2008, 02:16 PM   #54
Audiosavvy
Scooby Guru
 
Member#: 150794
Join Date: Jun 2007
Chapter/Region: SCIC
Location: Bakersfield, CA
Vehicle:
Qcab dakota 4x4
LT1 Formula Firebird

Default

Quote:
Originally Posted by stay_cold View Post
if you want noise, buy an intake way less harmful for your car

That's terrible advice. Did you even read the f-ing thread?
Audiosavvy is offline   Reply With Quote
Old 09-24-2008, 03:39 PM   #55
Darryl
Scooby Specialist
 
Member#: 1626
Join Date: Jun 2000
Location: Cincinnati, Planet Mongo
Vehicle:
'02 RevLab 11.5:1
Platinum Silver

Default About the APS bov...

My 02 REX once had the old APS Club-Spec kit, but after a few years I've returned the car to stock, except that I still have that old APS bov (and the hoses). I've dicked around with it over the years, always marking my start point, and I think I've got it back to it's original set point. Except that I'm not sure. But since I don't hardly put heavy boost on the car anymore (grandpa-mode driving) should I worry about if the BOV is set correctly now? At any rate, can I assume that having it set a bit tighter is better than having a looser setting?
thanks!
darryl
Darryl is offline   Reply With Quote
Old 09-24-2008, 08:25 PM   #56
stay_cold
Scooby Newbie
 
Member#: 187425
Join Date: Aug 2008
Chapter/Region: MAIC
Vehicle:
2007 VF39'd EWG'd
DPS tuned street machine

Default

Quote:
Originally Posted by Audiosavvy View Post
That's terrible advice. Did you even read the f-ing thread?
I don't mean CAI, SRI is good SPT or Cobb why the hell would anyone buy CAI or a BOV for that matter
stay_cold is offline   Reply With Quote
Old 09-24-2008, 08:42 PM   #57
Ralliart4
Scooby Specialist
 
Member#: 135927
Join Date: Dec 2006
Location: San AntonioTX/kingston Jamaica
Vehicle:
2002 Impreza WRX RA
PSM

Default

Simply put if a bov makes your car blowup you did something 'berry 'berry wong'.
Ralliart4 is offline   Reply With Quote
Old 09-24-2008, 08:55 PM   #58
Audiosavvy
Scooby Guru
 
Member#: 150794
Join Date: Jun 2007
Chapter/Region: SCIC
Location: Bakersfield, CA
Vehicle:
Qcab dakota 4x4
LT1 Formula Firebird

Default

Quote:
Originally Posted by stay_cold View Post
I don't mean CAI, SRI is good SPT or Cobb why the hell would anyone buy CAI or a BOV for that matter

I don't care what kind of intake you were referring to. You said an intake won't be as bad for your car as a BOV, and you're 150% WRONG. An intake can cause actual damage, a BOV won't. And explain to me how a SRI is better than a CAI in terms of performance? This is have to hear
Audiosavvy is offline   Reply With Quote
Old 09-24-2008, 09:25 PM   #59
hella_sti
Scooby Specialist
 
Member#: 139289
Join Date: Jan 2007
Chapter/Region: MWSOC
Location: ND
Vehicle:
2003 WRX Wagon
PSM

Default

Nice write up, I've got a GFB fully adjustable stealth fx bov that I can adjust from 100%recirc to 100% atmost and anywhere in between and love the adjustablity of it with the twist of a knob!
hella_sti is offline   Reply With Quote
Old 09-25-2008, 01:14 AM   #60
stay_cold
Scooby Newbie
 
Member#: 187425
Join Date: Aug 2008
Chapter/Region: MAIC
Vehicle:
2007 VF39'd EWG'd
DPS tuned street machine

Default

Quote:
Originally Posted by Audiosavvy View Post
I don't care what kind of intake you were referring to. You said an intake won't be as bad for your car as a BOV, and you're 150% WRONG. An intake can cause actual damage, a BOV won't. And explain to me how a SRI is better than a CAI in terms of performance? This is have to hear
correct me if I'm wrong oh knowledgeable **** head but water is bad for your motor I've seen people suck water into it with a CAI and a SRI (especially from SPT) isn't going to **** your **** up
stay_cold is offline   Reply With Quote
Old 09-25-2008, 03:19 AM   #61
theshadowonme
*** Banned ***
 
Member#: 168096
Join Date: Jan 2008
Location: Oklahoma City, OK
Vehicle:
2002 WRX Wagon
PSM

Default

Quote:
Originally Posted by sti_777 View Post
Not really. People seem to do what they want regardless of what others say. If someone wants a BOV they are probably going to get. Needed or not.
oh hai, I know you kind of.
theshadowonme is offline   Reply With Quote
Old 09-25-2008, 09:32 AM   #62
JDOG
Scooby Specialist
 
Member#: 41775
Join Date: Aug 2003
Chapter/Region: NESIC
Location: CT
Vehicle:
2004 STi
UPGRADING

Default

Great write up dave!!
JDOG is offline   Reply With Quote
Old 09-25-2008, 12:07 PM   #63
Audiosavvy
Scooby Guru
 
Member#: 150794
Join Date: Jun 2007
Chapter/Region: SCIC
Location: Bakersfield, CA
Vehicle:
Qcab dakota 4x4
LT1 Formula Firebird

Default

Quote:
Originally Posted by stay_cold View Post
correct me if I'm wrong oh knowledgeable **** head but water is bad for your motor I've seen people suck water into it with a CAI and a SRI (especially from SPT) isn't going to **** your **** up

I said PERFORMANCE, not reliability, etc. Here is MY quote...

Quote:
Originally Posted by Audiosavvy View Post
I don't care what kind of intake you were referring to. You said an intake won't be as bad for your car as a BOV, and you're 150% WRONG. An intake can cause actual damage, a BOV won't. And explain to me how a SRI is better than a CAI in terms of performance? This is have to hear
It doesn't rain here, I have no reason to have a SRI. And the bottom line is that you said an intake is less damaging than a BOV, which doens't cause damage AT ALL. An intake can certainly cause damage, depending on which one on which car.



This thread got so childish it's ridiculous. Can anyone discuss or debate something anymore without the name-calling and other High School asshattery?
Audiosavvy is offline   Reply With Quote
Old 09-25-2008, 06:15 PM   #64
007WRX
Scooby Guru
 
Member#: 125884
Join Date: Sep 2006
Chapter/Region: VIC
Location: Kelowna
Vehicle:
06 Evo IX MR Black
76 Datsun ZZZZZZZ

Default

I have a comment.

I had a discussion with Patrick Richard about this a month or so ago. I was opting to running no bov or bpv either, basically a closed circuit with my front mount. I am running a Mitsubishi 18g that I beleive is thrust bearing design. He stated that the only turbos not affected by compressor surge were ball-bearing ones.

Is this true?
007WRX is offline   Reply With Quote
Old 09-25-2008, 06:15 PM   #65
Davenow
Scooby Guru
 
Member#: 23676
Join Date: Aug 2002
Chapter/Region: NESIC
Location: de_dust and Orgrimar
Vehicle:
.

Default

no I really dont want it merged. It will get lost in there. It would just become more, of an FAQ that already goes over most people's heads.

Short, to the point, in your face. That is the only way this info will get out there. I had to make one of these a few years back for CAIs because so many would jump up and down to scream LEANNNNNN!!! at the very mention of a CAI.
Davenow is offline   Reply With Quote
Old 09-25-2008, 06:18 PM   #66
Davenow
Scooby Guru
 
Member#: 23676
Join Date: Aug 2002
Chapter/Region: NESIC
Location: de_dust and Orgrimar
Vehicle:
.

Default

Quote:
Originally Posted by 007WRX View Post
I have a comment.

I had a discussion with Patrick Richard about this a month or so ago. I was opting to running no bov or bpv either, basically a closed circuit with my front mount. I am running a Mitsubishi 18g that I beleive is thrust bearing design. He stated that the only turbos not affected by compressor surge were ball-bearing ones.

Is this true?

I honestly dont know what to believe.

Like I said, if Corky Bell says that they arent needed, I have a hard time NOT believing him. There is NO ONE on nasioc that knows as much as he does on the subject of turbocharging.
But I also, have a hard time 100% believing it, because it goes against everything I have ever thought about it.
Davenow is offline   Reply With Quote
Old 09-25-2008, 06:23 PM   #67
Ferg
Gung-ho Iguana
Moderator
 
Member#: 14145
Join Date: Jan 2002
Chapter/Region: NWIC
Location: Top Scoob HQ
Vehicle:
'02 WRX
'10 4Runner

Default

removed the very much unrelated "debate" to lands far away. OT awaits for those wishing to continue the discussion on that which forever shall remain utterly pointless.
Ferg is offline   Reply With Quote
Old 09-25-2008, 06:24 PM   #68
Uncanny
Scooby Specialist
 
Member#: 133012
Join Date: Nov 2006
Chapter/Region: Tri-State
Location: Syracuse, NY
Vehicle:
2011 WRX
Obsidian Black Pearl

Default

+1 to Corky Bell.... I have read a couple of his books, and from an Engineering side of things, I tend to believe him on MOST subjects (I specifically remember one instance where exhaust size calculations came into play) so if Corky says that minor compressor surge isn't a big deal, then I wouldn't jump to doubt him; if you think about it, surge is only backflow - compressed air - which is a relatively light, turbulent fluid in this instance - and at lower pressures (which even 16-25 psi are) really can't be all that damaging
Uncanny is offline   Reply With Quote
Old 09-25-2008, 06:28 PM   #69
007WRX
Scooby Guru
 
Member#: 125884
Join Date: Sep 2006
Chapter/Region: VIC
Location: Kelowna
Vehicle:
06 Evo IX MR Black
76 Datsun ZZZZZZZ

Default

But what would you classify as minor compressor surge?
007WRX is offline   Reply With Quote
Old 09-29-2008, 10:38 AM   #70
Davenow
Scooby Guru
 
Member#: 23676
Join Date: Aug 2002
Chapter/Region: NESIC
Location: de_dust and Orgrimar
Vehicle:
.

Default

Quote:
Originally Posted by ijb2105 View Post
+1 to Corky Bell.... I have read a couple of his books, and from an Engineering side of things, I tend to believe him on MOST subjects (I specifically remember one instance where exhaust size calculations came into play) so if Corky says that minor compressor surge isn't a big deal, then I wouldn't jump to doubt him; if you think about it, surge is only backflow - compressed air - which is a relatively light, turbulent fluid in this instance - and at lower pressures (which even 16-25 psi are) really can't be all that damaging


He basically said ALL compressor surge is nothing more than an unpleasent sound.
Davenow is offline   Reply With Quote
Old 09-29-2008, 12:07 PM   #71
Zac86
Scooby Newbie
 
Member#: 136919
Join Date: Jan 2007
Chapter/Region: W. Canada
Location: North Pole
Vehicle:
2005 Legacy GT Wagon
ABP

Default

Quote:
Originally Posted by Davenow View Post
He basically said ALL compressor surge is nothing more than an unpleasent sound.
I'm pretty sure its the sound of the air going back into the turbo and causing the turbine to almost like sputter, kinda like hitting a wall of air trying to stop it or spin it the other way, thats very hard on a turbine spinning at 20,000RPM.
Zac86 is offline   Reply With Quote
Old 09-29-2008, 12:46 PM   #72
Davenow
Scooby Guru
 
Member#: 23676
Join Date: Aug 2002
Chapter/Region: NESIC
Location: de_dust and Orgrimar
Vehicle:
.

Default

20,000? Try over 100,000

I would think it was really bad too.

But neither of us knows .001% of what he knows. Basically he said the sound is just cavitation.


The sound is not air going BACK into the turbo. The system doesnt feed the air back to it.

Think of it this way. You have a bottle. You screw a hose into it. You turn the water on. At some point you cap off the bottle so no more can get into it. The water doesnt back up, it just cant put any more in the system. The pump pushing the water in, will chug and makes noises, because it is trying to push more water in. But its not being forced to spin backwards or even stop.
Davenow is offline   Reply With Quote
Old 10-09-2008, 04:16 PM   #73
Davenow
Scooby Guru
 
Member#: 23676
Join Date: Aug 2002
Chapter/Region: NESIC
Location: de_dust and Orgrimar
Vehicle:
.

Default

Bump because people are STILL repeating the same stuff, all of it wrong.
Davenow is offline   Reply With Quote
Old 10-14-2008, 07:52 AM   #74
sti_777
Scooby Newbie
 
Member#: 166793
Join Date: Dec 2007
Location: Oklahoma
Vehicle:
2007 Toaster SC
Root Beer Metallic

Default

Quote:
Originally Posted by theshadowonme View Post
oh hai, I know you kind of.
I think we met at the BIG MIKE BBQ over the summer. Alot of you OKC guys came down for that one. Sweet wagon. Don't sell it.
sti_777 is offline   Reply With Quote
Old 10-14-2008, 09:05 AM   #75
big16gwrx
Scooby Specialist
 
Member#: 129459
Join Date: Oct 2006
Chapter/Region: MAIC
Default

Quote:
Originally Posted by Davenow View Post
OK!


7. So BOVs are fine? I can run one with no real downsides?
--Not always. MOST aftermarket valves leak. A leaking BOV, DOES slow you down, and can over time, damage things. To make matters even worse, 99% of people who buy BOVs, dont know how to, or bother to, take the time to set it up properly. So even if they bought a quality valve, it may be leaking.

8. I have had XXXX brand valve for years, it has never leaked.
--How do you know? By looking at your boost gauge? Looking at the boost levels in your datalog? Niether of those prove that the valve isnt leaking.
you may want to add that a good way of testing for a leak is to do a pressure test.... just my 2 cents
big16gwrx is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
General Subbie Newbie FAQ. Lets answer a few common questions and dispell some myths. Defiant Autospeed Newbies & FAQs 56 06-26-2014 12:35 AM
2.0L or 2.5L what are the ups and downs thewannab2002 Newbies & FAQs 28 05-27-2010 12:18 AM
The ups and downs of life MGXsport Off-Topic 14 09-10-2007 10:03 PM
S-AFC ups and downs y2k02scoob Factory 2.0L Turbo Powertrain (EJ Series Factory 2.0L Turbo) 11 05-16-2003 05:21 PM
What are the ups and downs of a dog box- any brand? GT2WRX Transmission (AT/MT) & Driveline 23 08-06-2002 08:30 PM


All times are GMT -4. The time now is 12:10 AM.


Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Powered by Searchlight © 2014 Axivo Inc.
Copyright ©1999 - 2014, North American Subaru Impreza Owners Club, Inc.