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N/A Performance Modifications for the NG900 / Old 9-3 This forum contains PERFORMANCE related Q&A's specific to NATURALLY ASPIRATED NG900 and old 9-3.

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Thread: BPV to BOV Reply to Thread
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Topic Review (Newest First)
02-01-2006 06:33 PM
mcrowley
Quote:
Originally Posted by Saab93cse
mcrowley... i must compliment your clean engine bay... It looks pretty damn nice
Thanks for the compliment, but its actually not as clean as it looks...theres plenty of road crap and gunk in there from driving this winter. Just have to wait for a warm day to clean it off again.
02-01-2006 04:01 PM
Saab93cse mcrowley... i must compliment your clean engine bay... It looks pretty damn nice
02-01-2006 03:52 PM
mcrowley
Quote:
Originally Posted by CooperS7777
Yea, that is a BPV not a BOV so it re-circs instead of atmospherically venting, though the way its set up it is venting to the atmoshpere...confusing.
Well its not really venting to the atmosphere...the atmosphere in my case is the intake duct.

edit-see the above post
02-01-2006 03:51 PM
mcrowley
Quote:
Originally Posted by CooperS7777
Now I understand, the visual definatly helped; the smaller of the vacuum lines which is now facing up, usually faces foward, so the peice facing downwards is usually the part that comes off the delivery pipe, correct?
Exactly. Valve works just fine this way...all you'd have to do is remove that bottom hose and you'd kinda have a pull type bov much like the hks one...which is kinda what the Forge sounds like plumbed this way on my car. The 9k and ng900/9-3 have the same stock bpv...so I think you can probably figure it out on your car from the pics.
02-01-2006 03:50 PM
CooperS7777
Quote:
Originally Posted by AeroDynamic
your forge valve is different then mine right? it recirculates it right?
Yea, that is a BPV not a BOV so it re-circs instead of atmospherically venting, though the way its set up it is venting to the atmoshpere...confusing.
02-01-2006 03:47 PM
AeroDynamic your forge valve is different then mine right? it recirculates it right?
02-01-2006 03:43 PM
CooperS7777 Here you boys go, thanks for the pics Mcrowley.

"2 pics of 9000 engine bay, normally the round part of the bpv would
face the front of the car, not up like shown in pics"

Now I understand, the visual definatly helped; the smaller of the vacuum lines which is now facing up, usually faces foward, so the peice facing downwards is usually the part that comes off the delivery pipe, correct?


02-01-2006 03:15 PM
mcrowley You've got mail.
02-01-2006 02:08 PM
CooperS7777
Quote:
Originally Posted by mcrowley
I don't know how else to explain it without a pic....but what I did was install it so the port that normally goes to the ic pipe is instead on the intake and vice versa.

edit...It'd be a little different on a ng900/9-3....and I'll go try and take a pic that MAYBE I can get hosted somewhere.
I have a photo bucket account if you want to e-mail the pic to me Ill host it for everyone. [email protected]
02-01-2006 02:06 PM
mcrowley
Quote:
Originally Posted by JK9000s
How the heck does that work???
I don't know how else to explain it without a pic....but what I did was install it so the port that normally goes to the ic pipe is instead on the intake and vice versa.

edit...It'd be a little different on a ng900/9-3....and I'll go try and take a pic that MAYBE I can get hosted somewhere.
02-01-2006 01:58 PM
iwantaviggen
Quote:
Originally Posted by JK9000s
How the heck does that work???
second that
02-01-2006 01:54 PM
JK How the heck does that work???
02-01-2006 01:32 PM
mcrowley Take the bpv, switch the orientation around. I've got a pic of it on my webpage, but the server hasn't been cooperating lately.

I took the bpv so the vaccum line points up at the sky...make sense now?
02-01-2006 01:06 PM
saabkid37 wait...what did you do mike?



02-01-2006 12:59 PM
mcrowley You can do what saabkid says, but switch the orientation of the bpv. I've got the forge in my 9k oriented the opposite way of the factory one and plumbed back into the intake...yes it works...yes it sounds different.
02-01-2006 12:55 PM
saabkid37 well the ghetto way (and it sounds like crap i did it while waiting for my hks to get here) is to just unhook the side that goes into the turbo intake and plug the hole on the turbo intake so it just vents the air to the atmo...if yuo do any tuning tho you will overpower the stock bpv



02-01-2006 11:56 AM
CooperS7777 96 900SE, T5 (so no MAF) and BOV's arent a problem.
02-01-2006 11:38 AM
JK What year/model car do you drive?
02-01-2006 11:17 AM
CooperS7777 I guess re-circ side would be a better term to use, but yea, are there any detailed directions on this that anyone knows up? I wouldnt imagine you would want to plug up the intake side as well but I really dont know how this whole thing works, just seen people saying they have a stock BPV venting atmospherically

Eric P had some info on his site about it a while back but if I remember correctly it was pretty vague.
02-01-2006 11:13 AM
iwantaviggen wat do you meen exhaust sode?
yur saying the side that dumps back into the intake?
yes its basicly just disconect that plug up the intake and you now have a bov... theoreticly
wont work on a t7
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