Nissan Forums | Infiniti Forums NICOclub staff, History and Advertising eMail NICOclub Webmaster Advertising on NICOclub Nissan forums
 
          
Active Topics

Quick Reply  Print  Email  Subscribe RSS  Help
 SMOG Legality - Testing, Tuning, Etc.First  1 2 3 >  Last
Author Post
Nismo_Freak

Offline

11648 posts
89 240SX
Austin Tx
7-25-2002

  SMOG Legal


If you live in a state where they do Smog testing you will never legally pass the inspection with an SR. The engine was not tested, and is not on the EPA's list of engines.

However, the SR CAN pass the sniffer test quite easily. You will need a functioning cat, along with a relatively stock engine setup.

In a perfectly running combustion cycle we decompose fuel (aka ignite) and form products with the air mixture. These products are H20 (water), CO (Carbon Monoxide), N0x (Oxides of Nitrogen), CO2 (Carbon Dioxide), HC's (uncombusted fuel), 02 (elemental oxygen), N2 (elemental Nitrogen), and H2 (elemental Hydrogen).

Excessive timing, boost, cooled air, airflow can create high amounts NOx which is what I see alot of people failing. This is due to the required high temperatures in which NOx is formed. Reducing the combustion temps will reduce the NOx pollution, which is why the EGR system was created.

Some setups will run into HC failures, where they are running rich in the lower RPM due to excessive fuel pressure (common to stock FPRs w/ hi-flo pumps). A S-AFC can be used to reduce the injector pulsewidths down to a moderated level to reduce the HC's. Be forwarned this can also increase NOx emissions when you lean out the mixture.

CO failures tend to be engines that are running too rich. CO is formed when the fuel hydrocarbons break down and are in a Oxygen deficient locality (meaning the mixture is rich). This translates to less CO2, and more CO emissions. Typically high CO's are related with relatively high HC's as well.

For the visual testing you need to find a "friendly" testing place, if you understand what I am getting at



1995 BMW M3
http://www.texasguntalk.com - Forum for Texas Gun Owners
http://www.texasgunrange.com - Texas Gun Ranges
modified

Offline

2 posts

glendale Arizona
3-6-2006

 « Re: SMOG Legal (Nismo_Freak)


So, will the sr pass a onboard diagnostic test?
Onizuka



Offline

8791 posts
91 coupe w/s13 SR20DET 89 hatch w/s14 SR20DE
Southeastern PA
11-6-2002

 « 


Absolutly not, but that only concerns people with cars manufactured 96 and newer. That can also be gotten around (especially if your not in california), if you can find the right people to go to.

I have a "friend" who found someone to stick a stock oldsmobile on the sniffer machine in place of his black sr-powered s13 coupe at no extra cost. You just have to find someone that has an equal love of all things automotive




modified

Offline

2 posts

glendale Arizona
3-6-2006

 « Re: (Onizuka)


That why i ask, its 98. Any way to have the motor cleared for street use, from DOT, EPA?
s13_drftone

Offline

86 posts
S13 with sr20det swap
Chico CA
3-12-2006

 « Re: SMOG Legal (Nismo_Freak)


no you just got to pay the price of $200
jjh

Offline

6 posts

central nj
5-14-2006

 « Re: SMOG Legal (hazw8st)


nice for locking the thread, i was wondering in nj has smog testing.
drifter_for_life06



Offline

5287 posts
1992 240sx fastback
York PA
7-5-2003

 « 


for the guys in PA..if i get a hi-flow cat on my 92 S13, i should be good right?

i got an emissions exempt sticker in March, but that was b/c i had less than 5k miles on the odo. since the last inspection.



1992 RPS13 (Sandstone Beige Metallic) PILOT M-Sports Rear Strut Tower Bar.PILOT M-Sports Front Strut Tower Bar.Blacktop S13 SR20DET.10-12psi.HKS Actuator.RS*R downpipe.BRM Testpipe.GP Sports EXAS Spec-D 3" pipe(no muffler).AEM filter element.Rigid Racing Cooling Panel.Z32 fuel filter.Walbro 255lph.Apexi Turbo Timer.Tanabe Sustec Under Brace.ST Sway Bars.S-AFCII.
http://www.cardomain.com/ride/2103207
hazw8st



Offline

521 posts

ROSARITO
9-6-2005

 « Re: SMOG Legal (s13_drftone)


Quote, originally posted by s13_drftone »
no you just got to pay the price of $200

Try again, back door smog for an SR20DET for 2 bills..... we're in 2006, these smog techs are asking $400 bucks here in SoCal.....



http://youtube.com/watch?v=yqMjMPlXzdA
nistangclan727



Offline

137 posts
03 maxima
Ravenna Ohio
5-20-2006

 « Re: SMOG Legal (Nismo_Freak)


would an sr pass in oh



03 max
XFD

Offline

3 posts
240SX/SilEighty style
Portland OR
5-4-2006

 « 


Is there a site that lists all the smog states and what forms of testing they do? Googling for "Smog States" and variants returns rather irrelevent results. (I'm in Oregon)
drifter_for_life06



Offline

5287 posts
1992 240sx fastback
York PA
7-5-2003

 « 


i was able to go to state.pa.us (obviously not the same link if you dont live in PA) and found somewhere on there what tests they run on certain year vehicles

just plug in your info and BAM,there ya go

nistangclan727



Offline

137 posts
03 maxima
Ravenna Ohio
5-20-2006

 « Re: SMOG Legal (Nismo_Freak)


what states would a stok sr pass
hazw8st



Offline

521 posts

ROSARITO
9-6-2005

 « Re: (modified)


Quote, originally posted by modified »
That why i ask, its 98. Any way to have the motor cleared for street use, from DOT, EPA?

I did some extensive research, and the answer is "no", DOT and EPA won't allow it. If your state doesn't perform smog inspections, nobody has to know what engine you have. What they don't know, can't hurt them...

safxtacy



Offline

905 posts
Lexus IS300
Barstow Ca
7-8-2006

 « 


ok im new to "THIS" site but im kinda lost on what exactly hazw8st does i had a few questions first do u own ur own shop and what exactly do u hve to do thres so much chemicals and other stuff lsted in different orders im lost but what exactly do u do is it a liquid or something or messing with ecu please try to make it clear and in order im not the sharpest knife in the drawer



For Sale:
Greddy Turbo Timer - http://forums.nicoclub.com/zerothread/312324

silninty

Offline

5 posts
1990 180SX
Tucson AZ
3-26-2006

 « 


I have a SR20DET in AZ and have gotten a slap on the hand here when I brought it to get tested. There are two types of "cop" type people, the ones who only care about the law...(which means they know nothing about cars), and the ones who love cars so an SR20DET would normally make these guys smile. The problem that I have lies in the air recurculation system. It is illegal to take it off of any engine to drive on the street, yet if your going to "fool" your local emissions testing facility your going to need a working air recirculation system on your SR20det 240sx. To make this work, you need to create a new steel pipe no less than 18" that goes around your steering column. No prob there, now you have to block your stock hole on your downpipe, no prob there and create a new hole on the side for your modified ARS tube. It works on my car but it looks horible. I guess next car I'll take my time more, I like a car that is modified to look like it's supposed to be that way. I don't know of a single company that makes a USDM swaped SR20DET downpipe with a relocated ARS tube hole. End result the car passed emissions better than any american car I have ever seen, I never played with timing or anything else, it was stock but passed with flying colors even though it had a racing cat and 3" exhaust all the way down.
hazw8st



Offline

521 posts

ROSARITO
9-6-2005

 « Re: (safxtacy)


Try email next time.......
Neil



Offline

745 posts
shooting laser guns
Newtown, CT
4-21-2004

 « Re: (hazw8st)


Just passed emissions today:

Stock S13 SR Blacktop
o.e. SMIC w/ Koyo
3" Catco cat
New 300z O2
Vented crank case / vc
~85°+ ambient temperature

HC: 90ppm out of allowed 150
CO2: .39% of .8% allowed
NOx: 1734 out of 1750 allowed (no egr)

no problem with visual in spection, the motor says 'nissan' on it. if anyone asks tell them its a special edition 240.



I edit my posts a lot.

'97 S14 - beauty
'92 S13 - beast

FAST-DATSUN

Offline

948 posts

Murrieta ca.
10-22-2002

 « 


what about the VISUAL part of the test and the fact that the engines (sr and RB) do not show up on the approved swap list???????//



Mack@ Mckinney Motorsports
951-304-9300 or 951-304-1045
Neil



Offline

745 posts
shooting laser guns
Newtown, CT
4-21-2004

 « Re: (FAST-DATSUN)


If they really have an "approved swap list" at your emissions center, I'll be surprised.

Don't say anything. The motor says Nissan on it, noone is likely to notice anything strange except for a couple shiny chargepipes... if they ask just tell them it was a rare 'special edition'

hazw8st



Offline

521 posts

ROSARITO
9-6-2005

 « Re: SMOG Legal (nistangclan727)


Quote, originally posted by nistangclan727 »
would an sr pass in oh

Quote, originally posted by jjh »
nice for locking the thread, i was wondering in nj has smog testing.

Quote, originally posted by hazw8st »
Try again, back door smog for an SR20DET for 2 bills..... we're in 2006, these smog techs are asking $400 bucks here in SoCal.....


Quote, originally posted by FAST-DATSUN »
what about the VISUAL part of the test and the fact that the engines (sr and RB) do not show up on the approved swap list?


Visual isn't an issue anymore, there are loopholes that bypass visual as long as the diagnostics and functional are within the emissions mandates.

Thebigjc



Offline

60 posts
1990 240sx/sr20det
seattle wa
8-23-2006

 « 


What about Washington, anyone tried here yet?



"Always be wary of any helpful item that weighs less than its operating manual."

"I'll be more enthusiastic about encouraging thinking outside the box when there's evidence of any thinking going on inside it."

-Terry Pratchet

Thebigjc



Offline

60 posts
1990 240sx/sr20det
seattle wa
8-23-2006

 « Re: (Thebigjc)


Also any issues running the denatured Alch. fo a short period of time in an sr20det?
hazw8st



Offline

521 posts

ROSARITO
9-6-2005

 « Re: (Thebigjc)


Quote, originally posted by Thebigjc »
Also any issues running the denatured Alch. fo a short period of time in an sr20det?

Running on denatured is not turnkey, you would have to tune the vehicle on denatured, then pretest it before the actual emisiions test.

domofun

Offline

8 posts
94 nissan 240sx convertable
moorpark ca
8-27-2006

 « Re: SMOG Legal (hazw8st)


hey where in so cal can i do this i need to smog mine thanks
FusionR300zx



Offline

1620 posts
1993 300zx/1997 240sx
Des Plaines IL
7-11-2006

 « 


hmmm... how about this... chicagoo...
98 (OBDII) with a OBDI redtop...?

what should i do?




courtesy Dirty Dee
http://www.chicagoarea240sx.editboard.com
Shaefer Thomas



Offline

193 posts
1992 240sx
Sterling Heights MI
3-31-2004

 « Re: (FusionR300zx)


I have a 240 that I bought in Texas, swapped an SR into it and moved back to Michigan. Michigan has absolutely NO laws whatsoever regarding smog or anything even related to it. I want to keep the car registered in MI because I am about to go to school in Washington. Im pretty scared about all this smog BS, and I REALLY dont want to get rid of my car after all the hard work I put into it.... Anyone have any advice on Washington's smog tests? I hear you have to go to an official testing center so there is a slim chance you will find a "friendly" person there.... Just need a little insight into this.. I Know Washington has a couple 240 guys with SR swaps, cuz Ive seen them around. Any help would be greatly appreciated.



1992 240sx 5pd
sr20det

TchouikoS13

Offline

895 posts
92 240sx HB + 06 Porsche Boxster S(vert)
San Jose Ca
1-9-2007

 « Re: (skygame)


If you use propane, wouldn't your car be registered as a propane car????




Quote, originally posted by Bumnah »

Item G. Metal things that do something $15

Looking for a s13 beater for UNDER $1000.00
180fan
Supporting Member

Offline

7955 posts
89 fastback
San Francisco
12-14-2002

 « 


not to mention when they revert your car back to use gasoline, you get pulled over you'll still end up going to the ref anyway since the officer won't be able to verify if it's propane or not. From what I've seen, if there's any doubt, you're going to the ref.



1. Search
2. Lurk moar
3. Don't post till you've searched
4. Don't forget details. We're not mind readers over the internets.
TchouikoS13

Offline

895 posts
92 240sx HB + 06 Porsche Boxster S(vert)
San Jose Ca
1-9-2007

 « Re: (180fan)


Quote, originally posted by 180fan »
not to mention when they revert your car back to use gasoline, you get pulled over you'll still end up going to the ref anyway since the officer won't be able to verify if it's propane or not. From what I've seen, if there's any doubt, you're going to the ref.

Kinda screwed there... Rather pay like 200 bucks for a hookup than a 400 dollar convention

Happytoys

Offline

1 posts
90 240 sx, 88 civic hatch
sac ca
2-23-2007

 « Re: SMOG Legal (Nismo_Freak)


Can anyone tell me where/how to find requierments/laws regarding swaps and smog for California? Specifically Sacramento. Also, u think it would be best/possible to keep my car titled in oregon but still be in cali
dsportsx

Offline

53 posts
1996 240sx se
West Haven connecticut
3-6-2007

 « 


I live in ct and Dmv has cameras in all of the emission centers and so is there a way to make this engine legal, now that big brother is even in the garages?
wa-chiss
The Chosen One



Offline

2183 posts
S13/Xterra
Stephenville Tx
2-21-2006

 « Re: (Shaefer Thomas)


Quote, originally posted by Shaefer Thomas »
I have a 240 that I bought in Texas, swapped an SR into it and moved back to Michigan. Michigan has absolutely NO laws whatsoever regarding smog or anything even related to it. I want to keep the car registered in MI because I am about to go to school in Washington. Im pretty scared about all this smog BS, and I REALLY dont want to get rid of my car after all the hard work I put into it.... Anyone have any advice on Washington's smog tests? I hear you have to go to an official testing center so there is a slim chance you will find a "friendly" person there.... Just need a little insight into this.. I Know Washington has a couple 240 guys with SR swaps, cuz Ive seen them around. Any help would be greatly appreciated.

There are certain places that dont do emissions like, here in Stanwood. I don't have to worry about it. You could just get a P.O. Box in a non-emission town and register your car there.




bball212000



Offline

134 posts
95 s14
alabamie AL
8-4-2006

 « 


i live in alabama (the land of open exhaust manifolds) what is this emissions and smog testing that you all speak of
Tubbert

Offline

4 posts
1990 240sx SE
Peoria Az
5-17-2007

 « Re: (silninty)


i'm goin to be in the same boat you are...any advice?... i heard up north they dont have emissions testing
xXtouge_beastXx

Offline

2 posts
SR powered 240sx
Pomona CA
5-20-2007

 « Re: SMOG Legal (Nismo_Freak)


what about straight through piping?
will that help me pass the smog?
hahahaha jK
seriously tho
if i have straight piping on my car
but i "pass" smog
can a cop still get me for it?
s13rb28

Offline

99 posts
1990 nissan 240sx hatch
Springfield MA
5-20-2007

 « Re: SMOG Legal (xXtouge_beastXx)


anyone in massachusetts try to get passed for emmissions? sniffer test here.
Rus240sx

Offline

4 posts
1992 240sx fb
MD
5-20-2007

 « Re: SMOG Legal (Nismo_Freak)


Has anybody tried to pass emission test in Maryland, any help would be appreciated.
Encryptshun



Offline

5011 posts
2005 Xterra
Streamwood Illistnois
6-4-2007

 « Re: SMOG Legal (Rus240sx)


I can't speak for other states, but here in Illinois they have a new law on the books as of 2005 that states:

"Recent changes to the Vehicle Emissions Inspection Law of 2005 provide that vehicles of model year 1995 and older that are in compliance with the law as of February 1, 2007, will no longer be subject to emissions testing."

The trick is making sure your car was compliant as of 2/1/07.

Check here http://www.epa.state.il.us/air/vim/ for more information, IL residents...



Quote, originally posted by marlin29311 »

I'd hit that. I think. Is that a chick or a dude?


CMG



Offline

1258 posts
1989 240sx Hatch w/ Redtop
SD CA
1-16-2007

 « Re: SMOG Legal (Encryptshun)


Cali. is the worst when it comes to smog. A good running SR with all the smog equipment removed and just a cat can pass the emissions test no problem...you just need to go to the right place to do it.
bhavedikian



Offline

241 posts
1997 240sx
Chicago IL
4-29-2004

 « Re: SMOG Legal (CMG)


If the PO Box thing doesn't work for me then is there some way to wire in a KA ECU so as to piggy back it so it receives signals and then hook it directly up to the diagnostic port? I have a '97 with a redtop and wonder how this all is going to work now that I have her running well. I'm from Ohio so this was news to me when I received the letter in the mail. I have to test it via computer to computer and that's it since it's newer than '95 as stated above in the dirty state of IL. I wish there was a way to do this since I have desire to torch the ozone, I just want the motor in the 240sx that should've been there in the first place if the high up people at Nissan at the time weren't smoking opium laced crack!



Boostification
 First  1 2 3 >  Last

» Return to SR20DET Forum (rear-drive)
Forum Jump
Quick Reply

Powered by ZeroForum 2.4.0. ©2008 RelyNet, Inc.



< Contact Us - NICO >

Visit G37Driver.com for Infiniti G37 Information
NICOclub's Nissan forums and Infiniti forums and all affiliated sites are the property of HDS Holdings, Inc. They are independent publications and are not affiliated with or endorsed by Nissan Motor Company or Nissan North America.

Information © Copyright © 2000-2009 by NICOclub
All rights reserved. Material may not be copied or reprinted without written permission.
Visit 370zclub.org for Nissan 370z Information

Google
Web NICOclub.com

Nissan Sport Magazine Forums
Nissan Infiniti Events and Shows Nissan Infiniti Road Tests and Reviews
Nissan Infiniti Related Articles Nissan Infiniti Technical Information Articles
Nissan Financing Advice Nissan Infiniti News Archive
240sx performance modification articles and information Nissan performance and modification
Infiniti performance and modification Nissan Infiniti Car Owners Homepage
Nissan Infiniti Parts Marketplace


Nissan Infiniti Links


Do NOT copy content, plagiarism will be detected by Copyscape.

The web's most active Nissan forum !

Home Photography Camera Information and Help

Racing maps and locations