Emission Testing Modified Skyline's

[ossie_21]

Yeah sorry about that it's a 95, same as yours. I did read the whole thread looking for the limits, maybe I missed them??

[ossie_21]

failed! but it was a good result for the first run - its not even twice over the limit for nox - nox was 3.45 which should be no more then 1.93 and the THC was 0.99 when the limit is 0.93 and CO was 2.4 where the limit was 9.3

So the engine is running too lean and its very close to passing. I am thinking about doing some more tweaks and give it another go or get my mates dad to tune it with his 5 gas sensor

ohhh and my car gets 11.9 litres per hundred economy!!! thats pretty good for 400rwhp!

Found this one, which has the limits I also found.

Thats where it's confusing though, as where does the O2 & CO2 come into play?? With the above it's fine & I can hand it in, but without any guidelines as to why the others are needed I'm confused as hell. The DPI (rta in NSW) won't tell me much other than I need to provide the info with it that it remains legal

As far as I'm concerned I should be able to hand in a report with the HC, CO & NOX all within those figures with a printout of this table :

http://www.infrastructure.gov.au/roads/env...t/emission.aspx

Just wanting to know what the other gasses are for is confusing.

[Guilt-Toy]

hey mate

they only test for those gases mentioned in my post above when i failed.

all the others are not looked at.

Remember this test was introduced in california in 1977 which was a emulation of a typical taxi ride.

Its old and probly causing the environment more harm then good because you can get high horse power cars passed and legal with it.

Funny that the cops / epa are policing a law thats so easy to pass, they probly dont realise or know any better the history of the IM240...

[ossie_21]

Ah ok....

Cheers for the help mate! I'm actually about to go see them now to clarify it (need to go order custom plates as well ), but yeah I think those 3 that apply to ADR 37 is all they need then. After a bit more research I think the other 2 gases come down to correct engine operation, not any specific limits. At least that's what I gather from here ---> http://www.aus-cartalk.com/viewtopic.php?p=345028

Any other dramas I'll let you know & maybe you could help out again

Luke I see you lurking I'll let you know later on today as well, and should be able to get yours tested as well at the same place as mine

[ossie_21]

After visiting the tech section, instead of coming home like now, I probably should have gone & bought an industrial size barrel of high grade lubricant, because all there is going to be is rampant arse raping.

Was told that I have to do the whole LT3 thing, which is the IM240 test. Funny thing that, because I was told there is only one place in Perth that can do it. And they don't do people off the street, instead dealing with fleet vehicles etc. And even if they did, it would cost about $4000.

Option B was to find the original manufacturers emissions specifications. The HC & CO2 can be found under the bonnet, no problems. The other 2, well they don't seem to exist. Even went to Nissan & they had no idea, or any idea about how to go & find them.

So then, how the hell am I meant to get this passed & cleared by the pits without putting myself into debt for a worthless reason or finding a needle in a haystack?

[luke20t]

nathan, my engineer gave me a phone number yesterday of some guy who i think has something to do with emissions.

ill send u a PM now.

[Guilt-Toy]

you are confusing the shit out of me mate.

lol

what the hell is going on?

[ossie_21]

The test that you got done, over here in Perth there is only one known place that can do it. They deal with businesses & not one-off people like I need, and even if they did apparently it will cost thousands. Considering that avenue is unlikely, they want a 4-gas analysis with my results & a standard emissions result from a factory R33 like mine to gauge the results against. Like I said the only legal ones are under the bonnet, but they still want the other 2 despite them not being part of the law.

All this test will prove anyway is that my car still complies with ADR 37. I already have results that show I comply with ADR 37.

[Guilt-Toy]

You have got to be kidding?

I allways thought that manufacter's had to comply with a set limit of emissions for the current year the car was being released in, so all cars have to pass the same limit for that year untill tougher emissions laws come in.

My car runs in the cut off between 91 & 98 year models so anything between those years have the same emissions requirements.

Dont quote me on that year range 91 - 98 as i am not 100% sure but i think i was reading it somewhere, maybe it was 92 - 97... not 100% sure if this information is correct you would have to look into it.

I know the guy at the RTA who did my test knew everything, i forget his name but he works out of the Botany emissions testing center.

I allways thought that all cars had to pass emissions for the laws set in that year. Thats why later model cars had more polution controll then the early ones.

let me know what you come up with, maybe you can call the EPA and ask them? if they are no good in WA try calling the guys in NSW.

Edited January 8, 2008 by Guilt-Toy

[ossie_21]

And in breaking news....lol

Spoke to a guy at the vehicle safety branch (who turns out used to be the guy in charge), and after discussing about that he told me what I already have will be fine!!! What I have still shows compliance with the ADR & it seems I was just given a screw around by them for no reason, as I could have had this handed in 2-3 weeks ago.

I spoke to him, he spoke to my engineer, called me back & let me know it was all fine. Then I spoke to my engineer who is signing my report off tonight & giving it to me tomorrow I really hope this will be the end of it now.

[Guilt-Toy]

nice work!!!

[KrazyS14]

Just found this thread now Anthony (yes i know, bringing it back from the dead) and congrats on passing it and gettin engineered.

I was in the same situation as you back in September last year after getting defected on that infamous night in Newy the weekend of the Apec summit. My recommendation when going to do this test is to speak to your engineer first! Cannot stress that enough. I found Athol Mullen in Cardiff to be lots of help.

Few things I noted from this thread and people's concerns in general about this test (keep in mind this is for an SR20 so may be different for all you RB fellas):

1) You CAN pass with aftermarket cams (albeit mild cams). I passed mine with Tomei Poncams (slightly larger turbo, 740cc inj, 3" exhaust with hiflow cat, etc), my emissions came in at 1/3 of the limit for all 3 gases (they don't limit CO2 emissions cos it's what you're supposed to get from combustion).

2) The test is 100% free in NSW, you can do it as many times as you want, they do not keep a record or anything of you failing.

3) Increased CO & THC levels are due to an excessively rich mixture, increase in NOx levels are due to an excessively lean mixture (as you mentioned previously), so it's a case of finding a balance between the two, most tuners (Guilt-Toy for example ) shouldn't have a problem with doing this.

4) Your engineer (pretty sure the emissions testing station doesn't have them) should have access to relevant ADR limits for emissions for your particular vehicle.

Hope this helps anyone else.

Edited April 24, 2008 by KrazyS14

[Guilt-Toy]

Bringing this thread back from the dead for a few reasons...

1: I am going back for another emissions test on 15th of october (by choice again)

2: was thinking about using E85 and tuning the car with that for the test

3: might even try to do the test WITHOUT a cat converter. Seeing the fuel is 85% would you need a cat?

So yeah thats my mission. What do you guys think?? am i dreaming about getting the car passed without a cat ? cannot hurt to try.

Wonder if i can get the car engineered without a cat? might have to call my engineer

what do you guys think ?? Dreaming ?? yes ? no ?? maybe ?? be honest i can handle the flameage

[GTRsean]

I think she might not pass with no cat converter.

Too many nasties without it?

Good to see what the readings would be though, good on ya

[Guilt-Toy]

yeah but mate you need to think that the car will only be running on 15% fuel. the rest is alcohol. There is not much nasties in the fuel to create nasties out the exaust.

This might just work!

I think she might not pass with no cat converter.

Too many nasties without it?

Good to see what the readings would be though, good on ya

[DRD-00F]

I'm not even sure what the law states about a cat, but I think it's something like HAVE ONE OR WE KILL YOU!

I don't think there is any logic or laws behind why you actually need one, just that not having one (wether it does anything or not) is not passable at rego time. Are there any cars at all to this date legally on the road and complied without a cat? bar electirc cars?

[TiTAN]

cars that were built before cats were mandatory can legally have no cat.

[Guilt-Toy]

I suppose i could ask the guys at the RTA to do a test with a cat and one without, i can change it in 10 minutes. They would probly be interested in the results as much as i am.

I am thinking that with a cat and a car running on e85 it will pass the emissions test with flying colours. WITHOUT a cat. thats a story that needs to unfold to be told..

The more i think about this the more i want to just go out there and fill the tank with e85 then try get it going at the servo and tune it on the way home.

anyone know where i can buy this stuff? im at Ryde

I have a few things i need to check, will my tech edge wide band air fuel ratio still work with e85 or will i destroy it ? will it read correctly?

what about my bosche 044 ext pump and my walbro 255l/m intank pump, will they survive the juice....

[joeyjoejoejuniorshabadoo]

at least use a good looking decat pipe....

[Duncan]

actually if you are in ryde you are close to about the only place to get it in sydney. head down victoria rd to rozelle, on the left heading into tthe city is a united servo (or similar) just before a caltex. they have e85 I was looking at it yesterday

particularly because it is $1.20/l