Bov Modification

[Adrian6T]

I seriously doubt it will do any damage to the car full stop.

When it does suck in air under vacuum during idle and offboost cruising it will go stright into the TB and into the cylinders and never see your turbo so the turbs itself will never be damaged in this way (it's impossible).

Brendan your a smart man. I didnt even think of it. Your 100% on the money.

Well is it ok if I say my TB is nice and clean?

[qwigybo]

I am using the gfb mach1 and I found that the spring in it was too strong.

in the jap cars they need to be closed at idle I found that a closed idle bov makes the car run rough at idle so I put a softer spring in mine I found that now it is open at idle and closes with a bit of a rev but now instead of opening a little bit then closing it opens up fully releasing all the air in half the time with no turkey gobble/dose at all.

now its just a clean shhhh plumbed back to the system where before it was tutututu and the idle is sweet.

there is no need to drill a hole in it unless you want xtra rice with your meat.

just wondering where you got the softer spring from as I have put an aftermarket bov on mine and it seems as there isn't enough pressure for the bov to open properly

[SLY6T]

I pluged up one end and put the fillter on and got no sound at all , so its straight to atmo now and all I get is a phhhhh sound , how do I get tutututut sound, also is it because im running stock boost .

[XF Falcon]

Once you get it tuned and run more boost the sound is louder. The reason you get a psshhh sound and not a tutututu sound is because the BOV is doing is job of releasing the air into the atmosphere properly.

If you block half of the outlet hole (people use chair leg plugs and make a hole in that) or stick a more restrictive filter on it, then the BOV will not be able to release all the air properly and you will get the flutter sound, or dose sound. Theres arguments about whether or not this damages your turbo or not, so I wont get into it Theres plenty of threads about that.

Im running a monza filter on mine with a 10PSI tune. If I back off relatively easy then it just makes the psshh sound even as low as 2000rpm but if I give it a bit and back off pretty hard then I get the tututu as well.. which I dont mind at all.

[SCRIBR]

I just chucked two 25mm chair legs on the end of either end of where the BOV pipes normally go.. makes plenty of tututu with anything above 0.5psi hehe

when it gets to 13 I cant hear much.. I need a K&N me thinks

[ashmo]

this how mine sounded but with a pod filter.

when u say pod filter did you mean you have replaced the factory box with one? or changed the filter inside?

[ROLMDL]

when u say pod filter did you mean you have replaced the factory box with one? or changed the filter inside?

your correct mate I dont use the airboxs anymore I just run a 3" pipe of the turbo with a pod filter

just check out the link in my sig that how it sounds

the video u just watch was old

[XR6T_ENVY]

heres how I did mine with the stock piping

How did you move the position of the BOV? Mine seems content on staying behind the turbo. I want to move it to make it easier to access but it feels like it's bending but not budging.

[nathen]

could some one do a picture report on how to do this mod?

[nathen]

never mind..sorry guys just read the thread..sweet as..