Atmospheric venting

[duckandcover]

I ahve been to 3 mechanics in the last week or so, all of which had advised me that there had been a recent law change regarding BOVs.

Can anyone confirm / deny this.

If so can you point me in the right direction for legislation.

I thought there had been a law introduced regarding wastegates targeted at screamers, have they worded to encompass all similar devices?

[Guest]

there was something in regards to BOV's, dont remember what happend though.

-smurff

[nztintin]

i passed a wof last week with atmo BOV, was at wingers in hamilton so not dodgy.

[nt_a_foz]

havent heard anything as far as i know...

screamers have always been illegal if its just got a pipe or no pipe as its classified as a exhuast leak

[R.D]

Vehicle Equipment (Noise) Amendment [2009]

Section 1

2.1 exhausts- basically not allowed to be louder than factory

2.2 bov- must be silent and not venting to atmosphere

but in the real world both these laws are not really pushed.

[wildturkey]

 R.D said:

Vehicle Equipment (Noise) Amendment [2009]

Section 1

2.1 exhausts- basically not allowed to be louder than factory

2.2 bov- must be silent and not venting to atmosphere

but in the real world both these laws are not really pushed.

agreed.....the bov 1 especially is not harshly enforced

[BC5RA]

^^ It should be, Atmospherically venting BOV's have cheapened the scene.

[Guest]

I just got a WOF on my legacy, the guy said that venting BOVs are soon to be becoming illegal but he didn't care.

[R.D]

im glad i went with the hybrid then, chuck in the bung and shes silently legal in like 2 secs. solid.

[nztintin]

disconnect vacuum hose and enjoy turbo flutter for wof day...... ;D

[DRFVDR]

hehhehehe funny thing is with the intake on the RX the turbo flutter is louder than the BOV hheheheeheh

[Guest]

if your turbos are open to atmosphere, then were do you plumb your BOV to? or do you not have to because really, its is plumbed into the intake?

-smurff

[99GTB]

 smurff said:

if your turbos are open to atmosphere, then were do you plumb your BOV to? or do you not have to because really, its is plumbed into the intake?

-smurff

That's a good question ;D

[BC5RA]

 smurff said:

if your turbos are open to atmosphere, then were do you plumb your BOV to? or do you not have to because really, its is plumbed into the intake?

-smurff

Only the Japanese or the odd drag car would run a Turbo without any filtration.

A road user would be an idiot to do so.

[Guest]

 BC5RA']

[quote name='smurff said:

if your turbos are open to atmosphere, then were do you plumb your BOV to? or do you not have to because really, its is plumbed into the intake?

-smurff

/quote]

Only the Japanese or the odd drag car would run a Turbo without any filtration.

A road user would be an idiot to do so.

ok, so if you had the filter on the front of the turbo, you can be dam picky

does it need to go between the filter and the turbo? so you will have to make an adaptor

-smurff

[Guest]

next we will all need resonatiors ducting to behind the passanger compartment for our bovs

:-P

[rockr]

does anyone know if they are gaing to be illegal because of the noise issue or because it is dumping emmisions to the atmosphere instead of the intake to burn them of again??

[funkytown]

 rockr said:

dumping emmisions to the atmosphere instead of the intake to burn them of again??

its just compressed air.. so its only as "emmision'ed" as whats being sucked in from the atmo.

*i guess there is a small amount of blow by...

[666SubSpeed]

I'm not to sure on the why but I did get a big fat FAIL on my last WOF for my atmo venting BOV. WOF guy said the law had just changed and the cops would be pulling over and green stickering cars with noisy BOVs but I am yet to hear anyone being done for it. Im not sure what the reasoning is behind the law change besides getting another one up on the "boy racers" and making it harder or less appealing to people who would modify their vehicles.

[aim]

Just get a factory unit for the wof...

[DRFVDR]

my RX dont has a factory unit only external guess i has to figure out how to plumb back

[rockr]

 funkytown said:

its just compressed air.. so its only as "emmision'ed" as whats being sucked in from the atmo.

not true on a factory setup the air intake has the breather from crankcase and tappet covers plumbed into it so there is that moisture/oil residue/gases in the compressed air which would be released to atmosphere via a vented bov instead of being burnt of and recirculated by a plumb back bov

this does not happen if you run a catch can for all your breathers to collect the moisture into of course, i guess these will be illegal here soon to like they are in ozzy along with vented bov and pod filters!!!

[aim]

Pod filters are illegal in aus? why?

[nztintin]

 aim said:

Pod filters are illegal in aus? why?

excessive induction noise

[Treecrusher]

The noise rules were amended and came into affect on 1 May 2009.

the amendment states:

 

“2.10 Blow-off valves

“(1) A blow-off valve must be either silenced effectively or not

vented directly to the outside air.

“(2) Subclause 2.10(1) does not apply if:

“(a) the blow-off valve is original equipment fitted by the

vehicle manufacturer or is a replacement; and

“(b) the vehicle has not been modified such as to increase

the noise output from the valve.”

So you can vent it to atmos, but it needs to be "silenced effectively"