Silvia Club of NSW

Most people know that it is illegal to have a BOV that vents into atmosphere, i am wondering whether the newer Blitz BOVs would get around this as they come with a little filter attachment that the air passes through when vented.

Anyone know?

_________________
S13 Silvia Tuning - The Definitive SR20 Modifying Site

the mixture problem will still be there, so technically they'd still be illegal for the emissions reasons, but they might fool some cops

_________________
The Engine Whisperer - fixer of things

I think I will just stick to hiding it down behind the front bar where the windscreen washer bottle goes. My number plate covers that hole so unless it is unbolted, it should be very hard to see, but in a good spotfor sound. Thanks DumHedfor the reply.

_________________
S13 Silvia Tuning - The Definitive SR20 Modifying Site

i got that little filter thing on my car.
its for the newer one but fits perfect with the older version.
Emmision is still wacked to i doubt that id be legal.

trumpet vs pod adapter, same characterisics. idling probs.
sound - huge difference. the pod thing quitens it down heaps and the bov sound weak as if i'm running only 2psi of boost. with the trumpet it sounds like i'm running 20psi of boost.. damn loud.

though i'm making a custom adapter so i can plumb it back. the idling is givin me the shits especially after a quick bosst dump..

plus i've fully boxed my filter so its all legal -ish...

QUESTION IS..
if i boced it. similar to this
http://members.optusnet.com.au/saintpoi ... C00830.jpg
but with thicker material and looks more solid and cleaner.
(sorry dude <saintpoida> ) using the clark rubber gear,
IS THIS CONSIDERED LEGAL or is the emission still fucked therefore its ILLEGAL

cos if its still illegal then i might as well just half box it as i've lost the fluttering sound with the filter fully boxed...

_________________
Officer ! I swear its all factory standard.

If I were going to seal in POD filters to make them legal I would be tryin as hard as possible to do it like the purple GTR 'GRACER'.

That car has a perspex box with the two POD filters inside with a ram ait intake pipe feeding into the box. I spose you would want to make sure that there was plenty of air getting to the box otherwisw you would just have an expensive and cool looking air box.

Looking for pics now...

_________________
S13 Silvia Tuning - The Definitive SR20 Modifying Site

From Zoom Conpetition Special 2002, Gracer on cover:



Pretty sweet ha?

_________________
S13 Silvia Tuning - The Definitive SR20 Modifying Site

I also wonder if it would be legal for the BOV air to be vented into this box? It wouldn't fix the idle problems though so and wouldn't be loud so maybe it's not worth it.

Perhaps only good as a temporary thing where you can put on a pipe from the BOV outlet to the box when you need to. Maybe to clear defects?

_________________
S13 Silvia Tuning - The Definitive SR20 Modifying Site

that looks good. perspex top..
i think i'll make one of those.
i had one in my civic minus the perspex

with the BOV
because mine is down on the waterbottleside and its pointing down.
it takes me less than 5 minutes to replace the adapters, from under the car.

trumpet = loud
pod = quiet

which ever mood i'm in. if i feel like terorisng some v8s then trumpet it is...

but i'll be making an adapter so i can run a hose back to the inlet.
this way i can have

LOUD
QUIET
and PLUMB BACK

_________________
Officer ! I swear its all factory standard.

just get a gfb hybrid or the new stealth where it plumbs back and goes to atmosphere.. the stealth one u can adjust if u want more plumbback or atmosphere so it shuld be good... u can hav sound or no sound

i got a gfb hybrid on my car 2day with fmic will tell u how it sounds this arvo when i pick car up!

In theroy you should be able to vent the the bov into the enclosed box as the main concern with them is emmisions i have read somewhere that only the stock type of bov is legal regardless if it is a plumback or vents to the atmosphere

_________________
There is a very fine line between "hobby" and "mental illness."

it's the emissions caused by the fuelling being messed up while the BOV is venting, not the actual air coming out that's the problem though.

Venting into the airbox doesn't solve that cos the air is still being sucked through the Airflow meter which is what caused the ECU to give the wrong mixture.
The BOV has to vent back into the intake piping *after* the AFM for the ECU to be able to keep mixtures correct.

This is the actual reason (apart from noise) that they're illegal, but most cops (and a lot of drivers) assume that it's the air venting that's the emissions concern.

_________________
The Engine Whisperer - fixer of things

thanks for that info dumhed

_________________
There is a very fine line between "hobby" and "mental illness."

why does an airfilter haveto be sealed up??
damn hippies

_________________
is that clutch or brake i smell?

I think it's partly due to it being a fire hazard. Older engines (carby) tended to backfire through the intake on occasion, which could set the paper or oiled foam element on fire quite easily.

_________________
The Engine Whisperer - fixer of things