The Epa Thread/Roadworthy Thread

[wht510]

Tried them on RB's?

To get to a 90dB limit for the EPA, a resonator will not get you over the line - that was more the point i was trying to make. So a rephrase of my statement if i may

Also remember 2.5" will flow any reasonable amount of power as well (2.5" is not a friend of a modified turbo setup).

Ok if your only chasing 200rwkw, but if you are looking to 250-300rwkw and beyond you are in a very big pickle on PULP.

edit: (talking about a system you can run daily, not swap out for EPA only)

Tried resonators on RB's? Yep. Rb's are great, because they are easier to shut up due to the smaller cylinder capacity (SR20 = 500cc per cylinder, RB26 = 433cc per cylinder, therefore pulses are less in amplitude. A resonator will get you over the line, but it depends on the outer diameter, the packing/hole size and the length. Have a look at the "Helmholtz resonator" and how they work. It's an excellent method of removing exhaust energy with minimal restriction to the exhaust system. Some work and some don't. It depends on the quality and if the exhaust shop knows what they are doing.

The fitment of a quality resonator WILL lower your sound output on your car with minimal restriction. Fitment of an absorption muffler is a larger resonator. Fitment of a reflective muffler will lower your sound even more, but will provide more back pressure.

For the SR20, the fitment of the resonator that I made was a permanent fixture. I value my and others hearing.

[IOWNU]

Hey guys,

Got defected last night for:

-Manual Boost Controller in engine bay

- HID headlights with 'no washers.'

The cop was a prick, "I wont defect you for the air pods."

Me "Because they're legal mate."

I think he is right with the boost controller and HID's but?

Sigh.

[R31Nismoid]

Are they china HID's?

Id imagine so, so yes, they are. Philips i think is legal, but they are expensive hence no-one has them which is kinda silly given the price neutrals the defects

[IOWNU]

Are they china HID's?

Id imagine so, so yes, they are. Philips i think is legal, but they are expensive hence no-one has them which is kinda silly given the price neutrals the defects

Yeah they are some Chinese brand.

I didn't even know about the Philips ones.

Also manual boost controller....not rw?

[_bobo_]

i thought hids were legal but legal limit was 6000 or 8000k??? i think 6000k.

btw got rwc & cleared defect on friday arbo..feels good to be back in the 33.

just got epa to worry about..only due end of august though.

n thanks to everyone for the advice.

[krzysiu]

Maybe when you got the rwc they didnt look for or find the hid ballasts or anything. Any HID is illegal if it does not have auto-leveling or a water jet cleaner for the headlight lense.

[wht510]

Yeah they are some Chinese brand.

I didn't even know about the Philips ones.

Also manual boost controller....not rw?

Any after market boost controller is illegal. If cops see something that is a different colour, or something that doesn't look 'factory' it's game over. So either put it back to factory, or hide it and hide it well.

The reason an aftermarket boost controller is illegal is because it changes the 'factory' emissions.

[wht510]

Maybe when you got the rwc they didnt look for or find the hid ballasts or anything. Any HID is illegal if it does not have auto-leveling or a water jet cleaner for the headlight lense.

Currently any HID is illegal if it is aftermarket and not complianced as factory with the car. You cannot fit HID's to your car without them being factory fitted to your model. The reasoning behind this is because you are not in a position to interpret the ADR requirements whereas the automotive engineer/car designers are.

[_bobo_]

okay just paid epa fine arghhhh $584.what a waste.

but still got to fix exhaust. spoke to a exhaust place and they said something about making a flange or something and quieting it down for $150. Was just wondering if i decide to leave this in would it effect performance or anything?? and if i take it out and get caught again will i have to pay another $584? otherwise i may aswel try and find a quieter muffler and do it properly.

or i was thinking of borrowing & putting a stock 33 exhaust back on to pass epa until i know what im going to do about the exhaust.

i have a silencer at home which i could just have welded on but it sounds all sh*% with them lol.

[R31Nismoid]

Of course it will hurt performance. It will be a 2-2.25" restrictor or similar.

Do it once, do it properly

[wht510]

..... Do it once, do it properly....

Amen to that.

Spend the money now, and save a crap load later on and have something that you wont have to worry about ever.

[_bobo_]

yeah it will benefit me in the long run to do it properly, and that goes for everything and any problem anyone has i guess.

probably just going to get rid of the cannon and put twin pipe muffler on it. just need to find one that still sounds nice but not to loud.

guy i spoke to from dandy exhaust reccomended a magna flow one so ima go down n check it out.

looking at either this

or theres these for $65??? not too sure on them though

[R31Nismoid]

What is the current exhaust setup?

To get past the EPA you'll need more than just a rear muffler (& cat).

You'll need a nice sized mid muffler too, infact the mid one is more important as it'll be larger than the rear one

(if memory serves me correct you can fit a larger one in the middle on the R33s)

[_bobo_]

atm got extractors. cat. 2.5inch piping hotdog resonator, and cannon.

which was 98-99db

[R31Nismoid]

Ye, one muffler isn't going to get you over the line, i was in a similar predicament and i'm not N/A!

I honestly feel you are gouing to need two very decent mufflers to pass the EPA.

You dont have a turbo to knock out some of the noise which is not helping.

Any by decent i mean more much than a $65 muffler

Go down and have a chat to a local exhaust place, there are a few good places Vic people use (if you have a search)

[_bobo_]

yeah i borrowed stock 33 exhaust to pass epa =]

gives me bit more time to work out what i want to do.

i called up dandy exhaust and going in to have a chat soon.

[krzysiu]

Just do what i did Beau, My exhaust system is a full 3 inch with only a cat and muffler. When i get epad i have a custom pea shooter rear muffler which i chuck on which goes down to 2 and a 1/4 inch. Passed EPA with the full turboback 3 inch to that muffler, with only a cat and got 87db.

Know you have passed it now but me spending $150 on that muffler saved me 3 times already

[R31Nismoid]

You do know they have now started taking photo's of just about everyone?

That trick wont work forever, recently a few people have been slapped with some fairly hefty fines i've heard around the traps.

Being they have been busted swapping mufflers over and so on.

Now more than ever, do it right

[krzysiu]

When i went to get the epa done they only took pics of my engine bay and cooler.

Technically on paper my exhaust system looks the same with the pea shooter and with the cannon. Thing is i can always say i had the small muffler on when caught, thats if the cop doesnt take a pic of it on the spot. They cant prove it.

[R31Nismoid]

If you think the EPA are stupid, you underestimate them

They are taking photo's @ the mobile EPA stations around the state these days.

All it takes is to get picked up once, just once.