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Best Plumb-back B.o.v.

Spunky Munky

By Spunky Munky,
in Engines & Forced Induction

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Spunky Munky Grand Master

Spunky Munky

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^^ Nah he's serious, have a read of his other threads. *shakes head*

Thien, you cant get the sound of venting to atmosphere without the problems that come along with it, unless you change over to an ecu that does not use an AFM.

Thanks mate... and yeah, I'm not too technically-minded when it comes to all this stuff... silly me...

I guess, I'll have to live with it then.... either lose the sound or have the sound with stalling issues.

Thanks mate.

Would a 50/50 plumb back BOV work?

Munkyb0y Grand Master

Munkyb0y

Posted
Posted (edited)

if you really want the psssht, try full atmo on a hybrid type bov. if it gives you trouble in full atmo (which plenty of skylines run without issue) then go 50/50. you should be fine. if that fails, you can always set it up as fully plumbed.

for the guy that asked earlier how its done:

fully plumbed = block one side, attached other to recirc hose.

50/50 = trumpet on one side, other side to recirc hose.

fully atmo = block recirc, use 1 or 2 trumpets on bov

here's mine 50/50

post-29392-1197881136_thumb.jpg

fully plumbed back, as it is now, . the trumpet is replaced with a supplied cap from GFB

post-29392-1197881169_thumb.jpg

btw, if it didnt come with the car, i highly doubt i would've needed or bought it.

Edited by Munkyb0y
Spunky Munky Grand Master

Spunky Munky

Posted
  • Author
Posted
if you really want the psssht, try full atmo on a hybrid type bov. if it gives you trouble in full atmo (which plenty of skylines run without issue) then go 50/50. you should be fine. if that fails, you can always set it up as fully plumbed.

for the guy that asked earlier how its done:

fully plumbed = block one side, attached other to recirc hose.

50/50 = trumpet on one side, other side to recirc hose.

fully atmo = block recirc, use 1 or 2 trumpets on bov

here's mine 50/50

post-29392-1197881136_thumb.jpg

fully plumbed back, as it is now, . the trumpet is replaced with a supplied cap from GFB

post-29392-1197881169_thumb.jpg

btw, if it didnt come with the car, i highly doubt i would've needed or bought it.

Is it just me, is does it seem that most people don't give two hoots about BOV's... and don't car about the ssshhtttt sound... would it be fair to say that everyone is over this?

Or is it due to stalling issues which is common in R33's?

TTT Grand Master

TTT

Posted
Posted
where can you get that done? whats is actually changed?

It's dodgey mate.

you take your stock bov off.

and put it in a VISE.

then crush it a little.

this preloads the spring that is in it which makes it hold more pressure as it takes more pressure to push the spring.

it doesn't actually make any more sound though.

Is it just me, is does it seem that most people don't give two hoots about BOV's... and don't car about the ssshhtttt sound... would it be fair to say that everyone is over this?

Or is it due to stalling issues which is common in R33's?

Yes that is correct.

we give no shit for bov sound.

put the stocker on there and stop talking about it.

Munkyb0y Grand Master

Munkyb0y

Posted
Posted

its true

i also give very little shit for the sound, so i ordered the cap from gfb to block the fuccker off.

i remember driving a 300zx with twin super dooper trumpet ultra mega farkoff bovs. i was over it in 20 mins. i mean even at 2k it was going AAAAAPPSHCOOOO. enough already, i just wanna drive.

swanny180 Proficient

swanny180

Posted
Posted

Mate, have a think about what youre asking.

Why would you want to modify your car in a way where the *only* benefit will be more noise (which will in turn give you more attention from police), and the downside to it is that it can and almost always will make your car run worse? (In the case of vehicles running airflow metres)

Your stock one does its job, which is to prolong turbocharger life, not make noise.

Dont but an atmospheric one, its pure wank and a waste of money.

r33cruiser Grand Master

r33cruiser

Posted
Posted

DONT PUT THE STOCKER BACK ON MAN.

buy an AEM quality plumb back bov. stockers are shit. they leak and fail to seal. think about it.

what would u do if u were pushed up and down BILLIONS of simes :S

stolen_s15 Mentor

stolen_s15

Posted
Posted
Thanks mate... and yeah, I'm not too technically-minded when it comes to all this stuff... silly me...

I guess, I'll have to live with it then.... either lose the sound or have the sound with stalling issues.

Thanks mate.

Would a 50/50 plumb back BOV work?

No it will not work.

Your AFM measures how much air is going into the engine, the ecu then uses that measuement of air going in to work out hom much fuel put in.

When you put on a BOV that vents air back to atmosphere (makes thats loud pschhh) your computer (thinking the air is still in the engine) puts in way too much fuel. This results in stalling, stuttering, big black exhaust smoke and a generally shithouse driving experience.

A 50/50 BOV still dumps 50% of the air that the ecu expects, so it still causes a problem. Just leave it stock FFS!

*On a side note I changed my spark plugs on the weekend and forgot to put the BOV return pipe back on, as i changed gears i got the atmo bov noise. But it made the car feel so sluggish on gear changes, spat so much black smoke I cant imagine how anyone could deal with that just for a little ghey sound*

TTT Grand Master

TTT

Posted
Posted
DONT PUT THE STOCKER BACK ON MAN.

buy an AEM quality plumb back bov. stockers are shit. they leak and fail to seal. think about it.

what would u do if u were pushed up and down BILLIONS of simes :S

This is twice I've seen you post this bad advice.

what is AEM?

l0WRB Mentor

l0WRB

Posted
Posted

stock bovs are rubbish, leaking heaps of shit, done a trip 2 brissy other weekend, running stock bov, f**kin heap of shit leaking the whole time on light throttle could hear it just in vacum, so fkn annoying

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