My compressor bypass valve (BOV) mod
#1
R1derful
Thread Starter
Join Date: Feb 2004
Location: N Cali
Posts: 702
Likes: 0
Received 0 Likes
on
0 Posts
My compressor bypass valve (BOV) mod
It sounds great! I used a 45 deg piece of 1" radiator hose (slips tightly over the stock hose), a filter from a Moroso catch can that I have for the CRX, and a battery post cap (red).
Sonny
#6
Glug Glug Glug Burp
Join Date: Jan 2002
Location: Scott AFB, IL
Posts: 3,819
Likes: 0
Received 0 Likes
on
0 Posts
Originally posted by JMunilla94RX7
there is no need for the filter. i vent mine straight to the engine compartment. not that it matters it is all for show/sound anyways.
there is no need for the filter. i vent mine straight to the engine compartment. not that it matters it is all for show/sound anyways.
Trending Topics
#8
R1derful
Thread Starter
Join Date: Feb 2004
Location: N Cali
Posts: 702
Likes: 0
Received 0 Likes
on
0 Posts
I put the filter on there because I read some posts in the archives about people having trouble with oil misting. I haven't had any trouble with misting, but I think a lot of it depends on whether or not your turbo seals are leaking.
Sonny
Sonny
#9
Glug Glug Glug Burp
Join Date: Jan 2002
Location: Scott AFB, IL
Posts: 3,819
Likes: 0
Received 0 Likes
on
0 Posts
Originally posted by 911GT2
Why did you put a filter on it? It blows air out, and since it just came out of the turbos it damn well better be filtered air anyway.
Why did you put a filter on it? It blows air out, and since it just came out of the turbos it damn well better be filtered air anyway.
From experience on several FDs I've seen anywhere from moderate to pretty serious oil buildup from the misting.. I'd imagine aftermarket BOVs are the same way.. Not all cars do it I don't think, but it's rather common.
#10
Lives on the Forum
The factory BOV is open at idle and draws air so if you don't filter it you're pulling in unfiltered air. I verified this last night when I had the airbox pulled and started the car. You can easily tell the bov actually is an intake at idle.
I don't understand doing this "mod" though. Now you have a BOV that does exactly the same job the original BOV did except now it makes noise while doing it. I guess to some noise= teh hotness I have to say this mod is no different than 5" resonated exhaust tips attached to stock mufflers...
I don't understand doing this "mod" though. Now you have a BOV that does exactly the same job the original BOV did except now it makes noise while doing it. I guess to some noise= teh hotness I have to say this mod is no different than 5" resonated exhaust tips attached to stock mufflers...
#12
Still on 1st engine
Join Date: Jun 2003
Location: SoCal
Posts: 1,176
Likes: 0
Received 0 Likes
on
0 Posts
Originally posted by DamonB
I guess to some noise= teh hotness
I guess to some noise= teh hotness
Lesson 2: Define "Bling Bling" in your own words.
#13
Ee / Cpe
Join Date: Jan 2003
Location: Gaithersburg, MD / WVU
Posts: 2,843
Likes: 0
Received 2 Likes
on
2 Posts
bling bling:
n. synonym for expensive, often flashy jewelry sported mostly by African American hip-hop artists and middle class Caucasian adolescents.
the sound light makes reflecting off of chrome
or
n. synonym for expensive, often flashy jewelry sported mostly by African American hip-hop artists and middle class Caucasian adolescents.
the sound light makes reflecting off of chrome
or
Last edited by XSTransAm; 04-19-04 at 04:30 PM.
#14
Slower Traffic Keep Right
iTrader: (5)
Originally posted by DamonB
The factory BOV is open at idle and draws air so if you don't filter it you're pulling in unfiltered air. I verified this last night when I had the airbox pulled and started the car. You can easily tell the bov actually is an intake at idle.
I don't understand doing this "mod" though. Now you have a BOV that does exactly the same job the original BOV did except now it makes noise while doing it. I guess to some noise= teh hotness I have to say this mod is no different than 5" resonated exhaust tips attached to stock mufflers...
The factory BOV is open at idle and draws air so if you don't filter it you're pulling in unfiltered air. I verified this last night when I had the airbox pulled and started the car. You can easily tell the bov actually is an intake at idle.
I don't understand doing this "mod" though. Now you have a BOV that does exactly the same job the original BOV did except now it makes noise while doing it. I guess to some noise= teh hotness I have to say this mod is no different than 5" resonated exhaust tips attached to stock mufflers...
#15
Lives on the Forum
Originally posted by ISUposs
Mine actually blows a steady stream of air out at idle.
Mine actually blows a steady stream of air out at idle.
You sure you're not thinking of the air pump hose leading to the ACV? That one has pressure rather than vaccum at idle.
#17
Slower Traffic Keep Right
iTrader: (5)
Originally posted by DamonB
At idle the entire intake tract is under vacuum;
At idle the entire intake tract is under vacuum;
Has anyone else tried this? Just pull your ABV/BOV off at idle and see if air comes out or if it sucks air in. Then we can figure out if DamonB's car is wacky or if it is mine.
Oh yeah, my ACV is long gone.
#19
No it's not Turbo'd
Mine was blowing air, since even tough the UIM is under vaccuum the turbos are spinning, and don't let anybody fool you, even though they are spinning slowly cause you're at idle, they're still producing some airflow, since it is a tubine spinnig a fan... the exhaust gases are still creating pressure, it just doesn't get used...
#20
Tony Stewart Killer.
iTrader: (12)
it has to do with the height of your idle or amount of vacuum your engine pulls. The bov takes a certain amount of vacuum to open. Once there, if your turbos arent spinning fast enough to keep up with the vacuum requirements of the motor I guess air would enter the bov but if the turbos are spinning freely then it will put out some excess air. If they are just right then nothing noticeable will happen. When I blew the motor on my last fd it would put out a ton of air because I had the idle raised to 1400. After that was fixed it did nothing at idle. Im not sure my ported motor pulled enough vacuum to open it at idle. I could be wrong but this is what ive experienced
#21
Wouldn't Go If U Paid Me
Join Date: Nov 2003
Location: Clayton, NC
Posts: 3,036
Likes: 0
Received 0 Likes
on
0 Posts
Originally posted by jdhuegel1
Have fun cleaning up all that oil mist..
Have fun cleaning up all that oil mist..
#22
I have an offtopic question, you see the big box in the right corner of the picture, the straight hose right next to the big ribbed one (for her pleasure i assume) what exactly is that? Mine came loose and i have it held on with black silicon for now, if you could answer my question i would be greatly appreciative. Thank you.
Edit: Its the bottom pic sorry for not being clear.
Edit: Its the bottom pic sorry for not being clear.
Last edited by Assud; 04-19-04 at 08:11 PM.
#23
PV = nRT
Join Date: Jan 2003
Location: New Zealand (was California)
Posts: 2,250
Likes: 0
Received 0 Likes
on
0 Posts
Originally posted by InsaneGideon
I see your Generation Y lessons are coming along nicely.
Lesson 2: Define "Bling Bling" in your own words.
I see your Generation Y lessons are coming along nicely.
Lesson 2: Define "Bling Bling" in your own words.
#24
Still on 1st engine
Join Date: Jun 2003
Location: SoCal
Posts: 1,176
Likes: 0
Received 0 Likes
on
0 Posts
Originally posted by clayne
More like gen Z.
More like gen Z.
edit: for those unaware, I wasn't making fun of DamonB.
Last edited by InsaneGideon; 04-19-04 at 08:16 PM.