Headsex Donating Members 2,528 Member For: 19y 5m 11d Gender: Male Location: Melb Posted 09/10/07 09:06 AM Share Posted 09/10/07 09:06 AM (edited) AFR has nothing to do with emissions.. Only the ratio of air / fuel burnt..The emissions are tested with a 4(or 5 gas?) analysis fo measuring gases like CO2 O2 CH4 Co H2 Et0H..Fuel mixture only plays a small part in this.. the main tricks are fring off the cat earily, and getting to operating tempreture.. this is done more via spark control rather than fuel control..Tuning for emissions vs Tuning for power are 2 different things.Sure, you can get the car tuned, and adjust it b ased on what a 4 (5) gas analysis shows, but there's a art to tuning for emissions.. ohh and a $2800 fee to get it tested and a report generated you can throw in cops faces when you get pulled up... (ohh and if you fail the test... expect to pay another $2800)..NOX is the important gas too I believe... (oxides of nitrogen)This can be reduced by allowing more EGR... Ohh and this is what costs power.. so I'd say most tuners disable this (the capa generics do) Edited 09/10/07 04:06 PM by Dagabond Link to comment Share on other sites More sharing options...
YPURV4 KILL,KILL,KILL,DIE,DIE,DIE, Member 2,813 Member For: 18y 8m 18d Gender: Male Posted 09/10/07 09:13 AM Author Share Posted 09/10/07 09:13 AM yeah what he said ^^^ Link to comment Share on other sites More sharing options...
Headsex Donating Members 2,528 Member For: 19y 5m 11d Gender: Male Location: Melb Posted 09/10/07 09:16 AM Share Posted 09/10/07 09:16 AM http://www.dotars.gov.au/roads/environment...t/emission.aspxThere you go...It shows the LIMITS of all the gases. Link to comment Share on other sites More sharing options...
Kimberley Scott www.australianflag.org.au Donating Members 6,763 Member For: 19y 6m 4d Gender: Male Location: Brisbane Posted 09/10/07 09:16 AM Share Posted 09/10/07 09:16 AM I see, so is it possible to have an EPA invioromental tune in the box, shpuld it ever be needed, or is this cost prohibitive and outside most tuners abilities?Scotty Link to comment Share on other sites More sharing options...
Fat-Tony Member 5,364 Member For: 18y 10m 1d Posted 09/10/07 09:18 AM Share Posted 09/10/07 09:18 AM Testing is not done at WOT, but if you still run closed loop with enough timing to warm up cat you will find it will probably pass. Link to comment Share on other sites More sharing options...
YPURV4 KILL,KILL,KILL,DIE,DIE,DIE, Member 2,813 Member For: 18y 8m 18d Gender: Male Posted 09/10/07 09:18 AM Author Share Posted 09/10/07 09:18 AM I see, so is it possible to have an EPA invioromental tune in the box, shpuld it ever be needed, or is this cost prohibitive and outside most tuners abilities?ScottyI wouldnt strees what they done to me is rare very rare, its just our local TMU dosnt like me to much lol. Link to comment Share on other sites More sharing options...
Kimberley Scott www.australianflag.org.au Donating Members 6,763 Member For: 19y 6m 4d Gender: Male Location: Brisbane Posted 09/10/07 09:20 AM Share Posted 09/10/07 09:20 AM OK we are outside of my mechanical knowledge on this one, Headsex, what would YURPV4 have to do to pass the emmision test. Does he indeed have to return it to stock?Appreciate the informative feeed back to.Scotty Link to comment Share on other sites More sharing options...
Headsex Donating Members 2,528 Member For: 19y 5m 11d Gender: Male Location: Melb Posted 09/10/07 09:25 AM Share Posted 09/10/07 09:25 AM I see, so is it possible to have an EPA invioromental tune in the box, shpuld it ever be needed, or is this cost prohibitive and outside most tuners abilities?ScottyBeyond tuners abilities for multiple reasons..A Emission "Tuner" charge a hell of a lot moreA 4 gas analyser is quite expensive, especially modern ones which simulate the test that the EPA does..Actually, the test isnt done at idle, there's a 25km/h test and also a 40km/h testI've been looking into this of recently as I know someone whos tuning a Supercharged VE 6 litre for emissions (as well as power)..Really, this is one things that's been massively overlooked.. As soon as ANYONE flashes any tune, being generic or custom tuned is outside emissions...OK we are outside of my mechanical knowledge on this one, Headsex, what would YURPV4 have to do to pass the emmision test. Does he indeed have to return it to stock?Appreciate the informative feeed back to.ScottyEasiest and Cheapest -> STD Injectors, STD Tune, STD Exhaust, and STD Airbox (no pod).. I believe the Intercooler shouldnt effect it..Expensive and technically correct -> Car needs to be dynotuned for hours with a 4GAS.. As I dont know exactly What effects what gas in a 4 gas (I'm still learning) its hard to say what needs to be done..and to stop them picking on YPURV4, Put higher suspension in it, remove the custom plates, and make the car look like standardOhh Mike.. a hint, Remove the "headsextuned" sticker also.. LOL EPA might ask why the cars tuned.. Link to comment Share on other sites More sharing options...
Fat-Tony Member 5,364 Member For: 18y 10m 1d Posted 09/10/07 09:33 AM Share Posted 09/10/07 09:33 AM (edited) Don't be an idiot danny, just say its the stereo you tuned Mike, when do you need an exhaust by? I will probably have one available to you to install not this weekend coming up, but one after? Edited 09/10/07 04:02 PM by Dagabond Link to comment Share on other sites More sharing options...
Headsex Donating Members 2,528 Member For: 19y 5m 11d Gender: Male Location: Melb Posted 09/10/07 09:38 AM Share Posted 09/10/07 09:38 AM Don't be an idiot danny, just say its the stereo you tuned Quoting what a cop said to me"Is that the stereo system company who tuned your stereo"... my reply "yeah, its my mates little business his trying to get off the ground.. just put it on as I dont even have a stereo" Link to comment Share on other sites More sharing options...
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