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View Full Version : Air intake questions . . . . someone set me straight



Zdster
29-03-2005, 06:27 PM
Hi all,

I have been reading the technical posts that state that removing the stock airbox from a vechicle is illegal. This raises my question, would installing a cold air intake system (such as injen or aem) be illegal as it requires the removal of the stock airbox? Can anyone explain this to me?

Thanks,

Zdster.

crispy
29-03-2005, 06:54 PM
Well there is a huge debate as to whether it is illegal or not to remove your airbox/install an intake system. I think its more the fact that you will have an oiled filter which then gets into epa stuff. Ive actually been told that if you have a cotton/foam filter which is not oiled, then your not breaking any laws. But hundreds of import owners have exposed filters on their cars and to have the exposed filters you need to take out the airbox, so i guess its ok as long as you dont do anything stupid to attract attention.

PhatSol
29-03-2005, 07:30 PM
Which state? You need to contact your local RTA.

Zdster
29-03-2005, 08:14 PM
Thanks crispy, I am not sure if I am now more confused :) . What I am really after however is are these types of intakes actually legal???

PhatSol - I am in Victoria. Might try VicRoads and see if they can make it any clearer . . . .

Anyone else got any ideas?

EuroAccord13
29-03-2005, 09:22 PM
Oiled Filters aka K&N are illegal Australia wide..

In Victoria, it's illegal to have an open pod in the engine bay, but it is legal to have a CAI as the filter is routed outside of the engine bay itself. If you have a pod in the engine bay, you might want to consider building a custom enclosure for it and in a way it also helps to deflect some engine heat from the pod......

Zdster
29-03-2005, 09:45 PM
but it is legal to have a CAI as the filter is routed outside of the engine bay itself

Can you explain what you mean by this? So are you saying that having say an aem cai is legal - or is it illegal as it has "an open pod"? Very confused :confused:

z3lda
29-03-2005, 10:10 PM
its only illegal if the copper that pulls u over is a tight ass.
my car went through a random vehicle inspection. popped the hood and saw a aftermarket airfilter and breather. the only defect i got was too low + number plates not mounted properly.

pornstar
29-03-2005, 10:36 PM
Zdster, its illegal

but as zelda said, some good cops dont bother booking u for this

JDM.Power
29-03-2005, 10:43 PM
tru some cops are cocky an some are not...or just get a sticker..an put aftermarket by honda :P say it came stock with it when i bough it!

Zdster
30-03-2005, 09:26 AM
So it is illegal to run a cai, pod filter and panel filter? I tried to look at VicRoads website but wasnt able to download the vechicle standards information.


Can anyone explain why exactly it is illegal? I mean it is not like you are not replacing the airbox with something else??? and at least the aem intake has passed CARB certification in the US . . . . I guess I am just wondering the logic behind this rule :confused: .

Psyklops
30-03-2005, 09:42 AM
the reason it's illegal is because there is a slight possiblity combusted fuel will make it's way back through the intake manifold down the pipe to the filter which then might catch fire....I guess this is possible if the cam belt snapped and the inake valves stayed open...then it might happen...but it is a lowest common denominator measure by the sounds of it IMO...pretty much the government wrapping us in cotton wool again:thumbdwn:

PhatSol
30-03-2005, 04:54 PM
Don't be lazy, ring VicRoads and ask them. No point comming on here and getting second hand information.

EuroAccord13
30-03-2005, 05:28 PM
Vicroads will tell you it's legal as long as it's not an open pod in the engine bay, it is NOT illegal to install a pod in the car, it's the way it's installed and then like the rest have mentioned, sometimes the cops will get you done for having a pod... The buffer between the law and enforcement of the law itself is a thin line....

A cop can do you for having an after market panel filter unless he clearly knows it's an oiled filter simple as that.

TypeRice
22-11-2006, 02:12 PM
http://www.geocities.com/aznaussie69/1432811.jpg

how about if you have an aftermarket intake system.. but your pod has a cover like in da pic above.. is dat illegal or legal?

destrukshn
22-11-2006, 02:23 PM
er.. but standard filters are oiled aren't they?
when they are fresh in the packet, you take em out, touch it, it's oiled.
that's genuine honda.

aaronng
22-11-2006, 02:38 PM
er.. but standard filters are oiled aren't they?
when they are fresh in the packet, you take em out, touch it, it's oiled.
that's genuine honda.

No their not.... they are dry, at least for our Accords (both CL9 and CD4)

destrukshn
22-11-2006, 02:39 PM
eh, when i opened a s2k one, it was oiled, same as my civic one.

aaronng
22-11-2006, 02:45 PM
S2k is different. That is a highflow cone. Check out the filters on the lower end family range Hondas. hehe.

destrukshn
22-11-2006, 02:47 PM
and my civic one i said was oiled.
either way, it's a standard filter, that is oiled.
lol.

JasonGilholme
22-11-2006, 02:53 PM
Fellas!!! your all barkin up the wrong tree. Just email/ring your local RTA. They'll have the info you need.

I suggest email so that you can print it out and keep it in ya car ;)

PS: Rep me baby, i'm like 2 points of 100!!! :P

aaronng
22-11-2006, 02:54 PM
You sure it's not just the paraffin coating?

destrukshn
22-11-2006, 02:54 PM
meow.

aaronng
22-11-2006, 02:54 PM
Fellas!!! your all barkin up the wrong tree. Just email/ring your local RTA. They'll have the info you need.

I suggest email so that you can print it out and keep it in ya car ;)

PS: Rep me baby, i'm like 2 points of 100!!! :P

No rep for you since you asked for it. :p

destrukshn
22-11-2006, 02:55 PM
You sure it's not just the paraffin coating?
i touched it, and yes it was oiled, definately.
=)

JasonGilholme
22-11-2006, 02:56 PM
No rep for you since you asked for it. :p

bastard...... :P

schew
22-11-2006, 03:06 PM
and my civic one i said was oiled.
either way, it's a standard filter, that is oiled.
lol.

I can second Destrukshn's statement. I noticed that when I bought a new Honda air filter for my EK1 Civic there packaging was a little oily from the filter. It is not as heavily oiled as a K&N or Unifilter, but there is definitely some sort of fine oil on it.

destrukshn
22-11-2006, 03:08 PM
I can second Destrukshn's statement. I noticed that when I bought a new Honda air filter for my EK1 Civic there packaging was a little oily from the filter. It is not as heavily oiled as a K&N or Unifilter, but there is definitely some sort of fine oil on it.

:rolleyes: arron

lol.

huynh12345
22-11-2006, 03:18 PM
having it boxed is better for performance anyways, so whats the problem?
since your allowed to have an oiled filter boxed everything is fine and legal
you just need the $$ for it. so concerned about whether it is legal or not.
the simple solution is to just fork out the money to make it legal

aaronng
22-11-2006, 05:50 PM
:rolleyes: arron

lol.

I might be wrong. Hehhe. But I still think it is something else because paper filters don't need oil. HHeheeh. Maybe it is a thin layer to prevent moisture from damaging the paper.

mrwillz
22-11-2006, 08:38 PM
they are oiled
i saw it wif my own eyes
glancing at it looks 'dry'
but in fact its oiled :)

destrukshn
22-11-2006, 08:49 PM
they are oiled
i saw it wif my own eyes
glancing at it looks 'dry'
but in fact its oiled :)

:rolleyes: arron
lol.

IZY-10
23-11-2006, 12:02 AM
Man Pods arnt illegal in vitoria. I thought they where illegal however the other week i got pulled over for a random roadworthy and they made me pop the hood. The officer called about 10 other cops and said "boys come and have a look at this" They where looking at my intake system and actually asked me where i got it made. i told them i enclosed it because they are illegal. And they all said no they are not

egSi
24-11-2006, 09:45 PM
who cares it its illegal or not, mike, just rock the box! :thumbsup:

tinkerbell
27-11-2006, 12:25 PM
What I am really after however is are these types of intakes actually legal???


no, unless you get it ADR tested for noise adn emmissions.

FYI - just becuase someone has been pulled over by a cop, and was not defected, does not mean it is LEGAL, it means that soemone was LUCKY...

destrukshn
27-11-2006, 12:28 PM
no, unless you get it ADR tested for noise adn emmissions.

FYI - just becuase someone has been pulled over by a cop, and was not defected, does not mean it is LEGAL, it means that soemone was LUCKY...
word.
lol.

tinkerbell
27-11-2006, 12:29 PM
Can anyone explain why exactly it is illegal?

it changes NOISE and EMISSIONS and is therefore illegal because it changes the car from the way it was complianced to something that is now uncomplicanced under the Australian Design Rules.

http://www.dotars.gov.au/roads/environment/impact/index.aspx

and ADR's are here:

http://www.dotars.gov.au/roads/motor/design/adr_online.aspx

check out ADR28 and ADR79

aaronng
27-11-2006, 01:29 PM
it changes NOISE and EMISSIONS and is therefore illegal because it changes the car from the way it was complianced to something that is now uncomplicanced under the Australian Design Rules.

http://www.dotars.gov.au/roads/environment/impact/index.aspx

and ADR's are here:

http://www.dotars.gov.au/roads/motor/design/adr_online.aspx

check out ADR28 and ADR79
Compliancing for intake and exhaust means they must meet ADR/EPA limits. Not sure about exhaust gas emissions, but for intake and exhaust noise, the limits are for cars under 150kW and 2 tonnes is 77dB when moving and 90dB when stationary as stated in ADR 28 that you posted.

IZY-10
28-11-2006, 12:33 AM
it wasnt just one cop doing the random roadworthy. Like i said there where more than one cop and said they where not illegal. Im sure if they where illegal they would of said something. They picked in everything but that

aaronng
28-11-2006, 01:30 AM
In VIC, exposed un-oiled pod filters on EFI cars are legal. It's stated in VIC EPA.

In NSW, all exposed pod filters are illegal because there is no statement saying that an exposed un-oiled pod is legal.

JasonGilholme
28-11-2006, 08:13 AM
Qld??

aaronng
28-11-2006, 10:54 AM
Qld??

Not sure, I can't find that document on vehicle emissions at all at QLD EPA's website.