Jump to content
SAU Community

Recommended Posts

Hi guys can someone explain to me how having a BOV vented to the atmosphere increases pollution? No not noise, that isn't the issue, unless it's over the DBA limit of course. The BOV only opens when the throttle is closed and when the throttle is closed the PCV valve draws air from the cam cover venting into the engine where it is combusted and cleaned by the cat.

So if everything is working OK, the only thing that comes out of the BOV is what went through the air filter. Since the air filter cleans out some crap, I would have thought the EPA would be happy with BOV's vented to atmosphere as they clean up the air for us to breath.

Try that next time the pesky pests annoy you.

Link to comment
https://www.sau.com.au/forums/topic/2776-bovs/page/2/#findComment-309431
Share on other sites

Yeah but that assumes your engine and BOV are in perfect running order. I would imagine there would be a number of incidences where a sick engine/turbo can spew noxious gases out of the BOV. Also would a venting BOV make the engine run rich? Changing these circumstances would increase noxious emissions?

T.

Link to comment
https://www.sau.com.au/forums/topic/2776-bovs/page/2/#findComment-309632
Share on other sites

Hi Tony, a couple of comments following on from your last post.....

"assumes your engine and BOV are in perfect running order"

So the pesky pests should be checking badly running cars, not ones with atmosphere vented BOV's. I followed a car to work this monring that was spewing so bad I had tears in my eyes, had to put the A/C on recirc.

"Also would a venting BOV make the engine run rich"

Yep, but not as much as when the engine is cold. At least the cat will be warmed up when the BOV vents and do something about it. When the engine is rich and cold, so is the cat, so it don't do squat.

Hope that adds to the discussion.

Link to comment
https://www.sau.com.au/forums/topic/2776-bovs/page/2/#findComment-311297
Share on other sites

Can you make all BOV's plumbback, or only specially designed ones?

i am not a riceboy but dont have a big adversion to the noise as long as it only comes on when boosting.

But i dont really want a atmo venting one as i couldnt be bothered with the hassle from the cops

yes i will be running large amounts of boost on occasion :D

Link to comment
https://www.sau.com.au/forums/topic/2776-bovs/page/2/#findComment-313070
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now


  • Similar Content

  • Latest Posts

    • This is a recipe for disaster* Note: Disaster is relative. The thing that often gets lost in threads like this is what is considered acceptable poke and compromise between what one person considers 'good' looks and what someone else does. The quoted specs would sit absurdly outside the guards with the spacers mentioned and need  REALLY thin tyres and a LOT of camber AND rolling the guards to fit. Some people love this. Some people consider this a ruined car. One thing is for certain though, rolling the guards is pretty much mandatory for any 'good' fitment (of either variety). It is often the difference between any fitment remotely close to the guards. "Not to mention the rears were like a mm from hitting the coilovers." I have a question though - This spec is VERY close to what I was planning to buy relative to the inboard suspension - I have an offset measuring tool on the way to confirm it. When you say "like a mm" do you mean literally 1mm? Or 2mm? Cause that's enough clearance for me in the rear :p I actually found the more limiting factor ISNT the coilover but the actual suspension arms. Did you take a look at how close those were?
    • @GTSBoy yeah sorry i know thery are known for colors bud those DBA are too in colors 🙂 Green will be good enough for me  
    • That's my life. Past-Duncan has a lot to answer for
    • Yep four point harness. Mounted to a bolted in brace running behind the seats. Dont use it for daily driving tbh but good to have for when its needed plus it looks cool.
    • I had to double check the thread title r34 gtt offset advice lol. Thought maybe i posted on the wrong thread. 😂
×
×
  • Create New...