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The Epa Thread/Roadworthy Thread

Do-Luck

By Do-Luck,
in Victoria

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Miguelone
Miguelone

Both fairly straightforward jobs. Really depends how fussy workshop is and how bad the leaks are. If you pressure wash beforehand and it's a minor weep it may not be an issue. ANother option is of cou

wht510
wht510

It is interesting, the dynamic currently. I think with the camera/database and automated method of checking number plates, they already know what kind of driver you are (speeding fines, previous

SKY031
SKY031

Useful links: Legal stuff Traffic Law in Victoria < READ THIS! Approved EPA Testers EPA Guidelines (2006) Is it legal to drive a 33 GTS-t on P's? The answer can be found here .....more inf

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Peter89 Proficient

Peter89

Posted
Posted (edited)

the frustration was getting to me and that i couldn't post in firefox for some unknown reason.

it reminds me a NS last year :blush:

cant edit that post.

Edited by Peter89
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Russman Grand Master

Russman

Posted
Posted
There is no tolerance far as i know however. If it's 0.5dB over, you are over and will fail. As the EPA people "tell" you, thier meters are perfectly calibrated.

I know for a fact they are not (having gone to two testers and had a variance of 2dB), but thats just how it goes really.

I failed at 92db with a stock cat back exhaust. Front pipe was aftermarket. Went back with new rear muffler and it was 84db.

Just a heads up if going for a noise test.

What the guy at the exhaust place told me (they do epa tests too) is to run your car for at least 5 mins to get the cat converter hot. He reckons when it's hot it is about 2db quieter.

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R31Nismoid Grand Master

R31Nismoid

Posted
Posted

Wouldn't be the first time a car has failed in that exact scenario Russ - same happens for GTR's with aftermarket from pipes & factory cat-back.

Simply cannot get them to pass.

I'm guessing you went back there with a super-poo-shooter rear muffler? :cool:

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Russman Grand Master

Russman

Posted
Posted

pretty much. Just wanted the quietest cheapest muffler they had. cost me $140 and used it for all of 10 mins...

If I'd known about the cat temp thing it may have just passed and saved me 140. Although I wasn't going to tow it all the way down there to find that he'll fail me again for 90.1 db.

:cool:

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Adriantc Enthusiast

Adriantc

Posted
Posted

Hey guys, about to do some work to my car and im wondering if what im about to do is going to cause me much issues.... i know the car does regardless and the 2 times ive been pulld over they go straight to the turbo and start looking in my passanger seat/door trim for things.. im guessing a boost controller...

Anyways if yas can just make some suggestions or if you think i will be fairly good with what im going to do let me know (peace of mind :P ), from what i can tell i should be ok.

Also whats the deal if i have to goto the epa or something? can my tuner tune the engine to run fine or is it just a matter of put the stock parts back on :S?

im new to the skyline/performance scene so yeah any help is appreciated. thanks!

also im in melb vic.

R34 GT-T 1998 White.. Manual Coupe - Daily to and from work driver/Weekend cruiser.

Currently: Stock as a rock (side skirts/Turbo timer)

Pulled over: Twice... car was checked over thoroughly both times... number plate noted the first time.

About to put in:

Bosch 040 Fuel pump

Sports Panel Filter

Turbosmart boost tee bleeder (will ask installer to hide it best as can)

Stealth FMIC cooler kit (contact has provided the cooler as he suggests is best for my car and is completely legal/no cutting etc)

Splitfire Coilpacks

Dump/Higher flow cat/Custom made twin rear with large twin stainless tip - High ride to give it the best stock look.

General service with platnum spark plugs

Nistune Chip

Exedy HD Clutch

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R31Nismoid Grand Master

R31Nismoid

Posted
Posted

Two issues...

1. The boost controller in that list you have.

That is easy to hide, or even remove for the sake of going down to the EPA. Would take 10mins if that...

You could also get an upgraded actuator as another idea. So permanently run 10psi, and then don't even have to worry about a bleed valve being there. No chance you'll get pinned for a aftermarket actuator, virtually impossible to tell something like that. Just rub some oil/dirt onto it before you install it if you are really worried. ;)

2. Exhaust. No way with one muffler it'll be legal. At a stab i'd say around 93-96dB, you'll need another muffler after the CAT (before the diff) to get the noise down to legal.

Everything else will be ok.

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Adriantc Enthusiast

Adriantc

Posted
Posted

Awesome thanks for the help people!

Im happy with my boost tee but thanks for the acuator tip (i have nfi what it is ;)) so yeah ill ask the installer to hide it and paint it black :devil:

Yeah the exhaust i think will be the hardest part its also 3" so im guessing when i have to get it tested ill put the stock one back on.

Should be coverd then im guessing...?

thanks for the reply guys :)

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Peter89 Proficient

Peter89

Posted
Posted

was talking to a guy who ran an exhaust shop, he claims that a car only needs to follow sound restrictions according to the year they were released. So while recent cars must be under 90db, if the car was released during the 95db limit, that's all that's required.

any truth to this?

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R31Nismoid Grand Master

R31Nismoid

Posted
Posted

Totally depends on the year of being made.

As you said Alex - pre 1983 cars have different rules, there are also cars that do not require CAT convertors and so on due to age etc etc.

HOWEVER should you put say a RB26 into a Datto 180b - you would need to comply with the MOTOR's emission requirements, not the cars.

It's very much subjective to the situation - if you can provide more detailed info we could help futher :)

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bozodos Grand Master

bozodos

Posted
Posted

yeah the GF's 1973 1200 had to get a test, went in with one muffler and reading 110db, bolted on another one and it went under the 96db limit woot! It's loud again now lol

I know that most people around here who have the later model Datsuns have to comply with the stricter noise and pollutions ADRs pretty sure the cutoff was around 1983

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