Silvia Club of NSW

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PostPosted: Wed Mar 10, 2010 1:23 pm 
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T28 Hybrid
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Joined: Mon Dec 13, 2004 12:38 pm
Posts: 99
Location: North Shore
Car: S13 Silvia
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.


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PostPosted: Wed Mar 10, 2010 9:11 pm 
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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?

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PostPosted: Wed Mar 10, 2010 10:32 pm 
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TO4

Joined: Sun May 14, 2006 6:37 pm
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Car: s15
I wonder what kind of exhaust do you have as I guess it had to pass noise test too?


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PostPosted: Thu Mar 11, 2010 4:56 pm 
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T28 Hybrid
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Joined: Mon Dec 13, 2004 12:38 pm
Posts: 99
Location: North Shore
Car: S13 Silvia
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.


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PostPosted: Thu Mar 11, 2010 7:06 pm 
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Car: granpa's jz83 cressida
who said you passed? the tester" driver" or the epa themselve's?

did you send your paper's into anyone?

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PostPosted: Thu Mar 11, 2010 10:49 pm 
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Takumi
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good stuff!

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PostPosted: Fri Mar 12, 2010 12:00 pm 
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T28 Hybrid
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Location: North Shore
Car: S13 Silvia
Mr Bean wrote:
who said you passed? the tester" driver" or the epa themselve's?

did you send your paper's into anyone?


The testing engineer had some reference paperwork there for what constituted a pass for the year of my engine. So far he is the only person who has commented on it. I have sent it on to the engineer and await feedback. I have not done anything with the EPA.

The Infrastructure website details ADR emissions limits.
http://www.infrastructure.gov.au/roads/environment/impact/emission.aspx

The year of my engine corresponds to ADR37/00 which is for vehicles/engines from 1/2/86 to 31/1/96. According to the website the ADR37/00 limits are:
HC 0.93 g/km - mine was 0.75 , high because it was missing
CO 9.3 g/km - mine was 0.6
NOx 1.93 g/km - mine was 0.03

ADR37/01 (vehicles/engines from 1/1/97 - 31/12/02?):
HC 0.26 g/km
CO 2.1 g/km
NOx 0.63 g/km

NB All information I have provided in this thread is my understanding only. Please refer to the government website, RTA engineer or other authority for what suits your vehicle.


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PostPosted: Fri Mar 12, 2010 10:06 pm 
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Joined: Mon Sep 08, 2003 11:21 pm
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Car: WGNC34,S14,AE86
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...


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PostPosted: Mon Mar 15, 2010 4:29 pm 
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T51 Hybrid
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Car: S15
wow :o 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?


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PostPosted: Mon Mar 15, 2010 5:52 pm 
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T28 Hybrid
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Location: North Shore
Car: S13 Silvia
Aym23q wrote:
wow :o 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?


I compared my results to the pass mark on infrastructure.gov.au. I would have failed on the S15 test.

My car:
HC 0.75g/km
CO 0.6g/km
NOx 0.03g/km

Max for S12,S13,S14-S1:
HC 0.93 g/km
CO 9.3 g/km
NOx 1.93 g/km

Max for S14-S2 & S15:
HC 0.26 g/km
CO 2.1 g/km
NOx 0.63 g/km

As previously some independant testing on fordxr6turbo.com indicated the BF XR6T cat flowed 300cfm, the same as the FPV, F6 (270+kw) and GTP (290kw), both which have factory examples running close to 240rwkw.

Afternarket cats, particular the cheaper brands aren't so reliable with quoted flow rates (www.metalcat.com.au has some things to say on these quoted flow rates).

Ceramic core cats such as the XR6 cat I got don't last so long if your car is running rich - metal cats are better in this instance. Most of the cheaper metal cats have some kind of "race use only" disclaimer with them giving me the impression they don't do a great job catylising.

The better aftermarket brands I read about seemed to be:
Magnaflow, Metal Cat and Catco.


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PostPosted: Wed Mar 17, 2010 12:31 pm 
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Quad T04
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Joined: Wed Sep 03, 2003 12:08 pm
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Location: Sagami-ono, Kanagawa Ken
Car: S13 Silvia
Quote:
It's in the thread ... Pemriff.

Yeah i looked and it's only Penrith, which is probably further away from me.

Anyways great to see some good information posted, very usefull to know.

What intake are you using? OEM airbox?

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PostPosted: Wed Mar 17, 2010 12:39 pm 
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T28 Hybrid
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Location: North Shore
Car: S13 Silvia
Nebuchernezzer wrote:
What intake are you using? OEM airbox?

Currently running a pod filter on z32 adaptor. Once my car is registered I'll be getting a custom airbox made up by dumhead.

No complaints from the engineer or auvis inspector about the pod as a requirement for certificate / blue slip.

I'm not sure if the noise test workshop will care.


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PostPosted: Wed Mar 17, 2010 3:53 pm 
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Quad T04
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Location: Sagami-ono, Kanagawa Ken
Car: S13 Silvia
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.

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PostPosted: Wed Mar 17, 2010 4:31 pm 
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T28 Hybrid
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Joined: Mon Dec 13, 2004 12:38 pm
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Location: North Shore
Car: S13 Silvia
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."


Quote:
Modifying or repairing a vehicle so
that its noise control equipment is
made defective, is not securely in
place, is missing, or has temporary
noise reduction devices or packing
fitted (clause 19)

Fine $200 for individuals/$400 for businesses

Enforced by DECC


Quote:
Defective noise control equipment
Vehicle owners and operators should ensure that their
vehicles are not fitted with defective ‘noise control
equipment’ (Clause 18 of the Regulation). Noise control
equipment covers both exhaust systems and engine
components. Defective equipment is defined as
equipment that:
• allows gas to escape from a place other than the
intended exhaust outlet
• allows the emission of more noise than the original
noise control equipment fitted by the vehicle
manufacturer and, if the equipment is part of the
exhaust system, an authorised officer reasonably
believes its noise level is above the prescribed level, or
• has been modified in a way that an authorised officer
reasonably believes makes it less effective than it
would have been if it hadn’t been modified, and, if the
equipment is part of the exhaust system, an authorised
officer reasonably believes its noise level is above the
prescribed level.
Clause 18 of the Regulation also makes it an offence if a
vehicle’s noise control equipment is not securely in place
or is removed and not replaced. This means exhaust
system components (such as mufflers and baffles) and
engine equipment (such as air filters) must be properly
fixed in place and not be missing.


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PostPosted: Wed Mar 17, 2010 4:57 pm 
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Quad T04
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Joined: Wed Sep 03, 2003 12:08 pm
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Location: Sagami-ono, Kanagawa Ken
Car: S13 Silvia
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.

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