Emissions testing, aftermarket cats and ecus

jawsh · Posted: Wed Mar 10, 2010 12:23 pm Post subject:

I passed.

The car was missing quite a bit too so I was pleased with my result. The missing can be seen in the hydrocarbon spikes (caused by unburnt fuel) on the top graph in each test.

The testing engineer said the ford xr6 cats are excellent as proven by my results. Anyone looking to get a reasonably priced good cat, check the ford forums for people who have upgraded their cats. I paid $120pp and then had to get some flanges welded on (thanks dumhead).

When he looked up my results to see how I went, he mentioned '97 is the year they got much stricter. He said these days the engineers tend to go off the year of the engine and not the chassis which I didn't know. My s14 sr was from '95, so anyone with a late model s14-s2 or s15 engine and planning on getting emmissions testing done for engineers cert, be aware the ADRs from 97 onwards are much harder to pass.

I still haven't blue slipped my new engine in to my car so he updated the engine number on the print out for my engineer.

badhairdave · Posted: Wed Mar 10, 2010 8:11 pm Post subject:

wow, i'm impressed.

The number of threads i have seen where people fail this thing repeatedly and you got it first go.

So other than the cat you didn't change anything? still power tune?

ru55kj · TO4 Joined: 14 May 2006 Posts: 229 Car: s15

I wonder what kind of exhaust do you have as I guess it had to pass noise test too?

jawsh · Posted: Thu Mar 11, 2010 3:56 pm Post subject:

I changed nothing except the thermostat since getting it back from Unigroup. Passed with 238rwkw power tune, gt-rs, fmic, cams, 740cc injectors, pfc, 3" turbo back and xr6t cat.

Yavuz suggested the XR6 turbo cat and said it should pass with one on there when picking it up from the tune.

Next up is exhaust noise test @ roseville $60, weighbridge, install coilovers when arrived from japan, engineer, blue slip, rego.

The exhaust is a JJR front/dump combo and a HKS Hiper cat back. I think it's borderline on 90dB.

Mr Bean · Posted: Thu Mar 11, 2010 6:06 pm Post subject:

who said you passed? the tester" driver" or the epa themselve's?

did you send your paper's into anyone?

DumHed · Posted: Thu Mar 11, 2010 9:49 pm Post subject:

good stuff!

jawsh · Posted: Fri Mar 12, 2010 11:00 am Post subject:

fergo308 · Posted: Fri Mar 12, 2010 9:06 pm Post subject:

so S13's and S14 S1's would have a much easier time passing an emissions test than a S2 S14 or an S15 according to that info. interesting...

Justin...

Aym23q · T51 Joined: 02 Jun 2004 Posts: 346 Car: S15

wow

nice work

How much did u pass it by? if your car was an S15 you reckon you still would of passed?

Does the XR6 cat flow as good as most aftermarket cats out there?

jawsh · Posted: Mon Mar 15, 2010 4:52 pm Post subject:

Nebuchernezzer · Posted: Wed Mar 17, 2010 11:31 am Post subject:

jawsh · Posted: Wed Mar 17, 2010 11:39 am Post subject:

Nebuchernezzer · Posted: Wed Mar 17, 2010 2:53 pm Post subject:

If you have the relavant emmissions tests can get it engineered with the pod?
Not that I want to do it, but I'm curious.

jawsh · Posted: Wed Mar 17, 2010 3:31 pm Post subject:

In my reading of various experiences recited around the place pods are illegal and attract a ~$60 fine due to additional noise generation. This fine also attracts demerit points and is enforced by the police.

I read the only way to get it legal is to put them inside a custom enclosure and then another person said it also requires a drive by noise test for engineers cert which is almost impossible to pass because of road noise. I haven't been able to find any more information than hear say so far. I'd like to find out who does this testing and how legal it is. I'll ask the noise testing station when I go there if they know of anything.

The stock airbox won't fit in my car anymore because I have a z32 AFM and front mount intercooler. So whatever ends up going in there it won't be stock. I'll just have to make up something that looks close to stock to hopefully sway future testing officer's reasonable belief that it's worse than it was from stock.

The DECC (formerly EPA) website isn't loading for me at the moment but there is a brochure with details of what is deemed illegal on the Woollongong Council website.

http://wcc.wollongong.nsw.gov.au/FormLibrary/Managing%20Vehicle%20Noise%20-%20DECC.pdf

The policy is loosely worded. "reasonably believes" could mean they don't even have to measure it to fine you. So even if it's engineered and has passed a noise test there is scope for them to fine you anyway.

"I reasonably believe this modification to the intake is less effective than the stock airbox."

Nebuchernezzer · Posted: Wed Mar 17, 2010 3:57 pm Post subject:

Bugger.
Well not that it matters much to me, i'm using the stock airbox which i modded slightly to fit my Z32 AFM and I made my front mount intercooler piping follow the standard path so it goes neatly against the airbox

.

The only thing i'm thinking about doing is enlarging the airbox opening and adding a bellmouth to it but that probably won't do a whole stack really at my 190rwkw power level.