SR20DET RWD Emissions

[clark]

I need to get emissions done on my S13 with SR. i'm in NEW YORK. WE ARE NOT AS STRICT AS CALI. i was going to post in the regional question but i feel it doesn't belong in regional because i'm asking everyone EXCEPT cali. cali guys, please keep SMOG advice to your self.

have any of you guys with SR swaps passed emissions legitimately recently? 2 yrs ago i just took it to some place in queens on the corner of archer at sutphin. i want to just do it legit now and i htink it will pass. i have stock ECU 3" exhaust, KN air filter and that's really it. it runs super healthy, idles nicely never had engine problems. i have a straight pipe right now, but i JUST bought a magnaflow catalytic converter. i will also dump some G2P into the fuell tank before taking it to the emissions test.

i'm almost positive it will pass no problem sine it's a brand new cat and runs clean. oh yeah and will put brand new NGK bkr7e in as well.

at this point i don't see how this engine would be any different than an sti engine or any other simliar engine.

what you guys think?

[clark]

anyone have input?

[fliprayzin240sx]

You do know an STi/EVo had 3 cats in there right? Doing it legally...not possible. No buts or ifs about it, an SR20DET is illegal in the states. It was never imported into the states by Nissan. Never certified by NHTSA to be used in the US.

Can it pass a sniffer test? Yes. Can it pass a visual inspection? Under a trained eye, No. Will it ever be 100% legal (federal)? No.

[clark]

thanks flip

yeah i don't care if it's legal, i jsut want to pass.

they don't pop hoods around here and they don't care what the engine looks like.

but shit i didn't know the evo/stis have 3 cats....CRIPES

but still..cmon someone who sees this post must have had a sniffer done to their SR20 some time or another.

this isn't a tyipical SMOG thread...i want to see peoples nox,co numbers.

my daily 1990 isuzu trooper with GM 2.8TBI passed emissions wtih a new cat, why wouldn't my much better/healthier sr20 motor pass...hmmmmmmm

[Z U L8R]

if your timing is correct and your sr , or rb is running correctly, with a good cat it will pass no problem.

done MANY MANY MANY times without any fuel additives.

veeeeeeeeeeeeeerrrry rarely will you need to retard the timing a 2 degrees or so to keep get the NOX within range, but other than that, with a good cat, it'll pass

gl
Dave

[clark]

if your timing is correct and your sr , or rb is running correctly, with a good cat it will pass no problem.

done MANY MANY MANY times without any fuel additives.

veeeeeeeeeeeeeerrrry rarely will you need to retard the timing a 2 degrees or so to keep get the NOX within range, but other than that, with a good cat, it'll pass

gl
Dave

hey thanks for the response, makes me feel a little better..now i'm thinking i should have gotten a closer to OEM cat.

i picked up a magnaflow 2.5" catalytic converter.

but you bring up a good point, i think with a brand new cat, NOX will be fine, but it's the other numbers that i'm mainly concerned with.

anyone else have input?

[Z U L8R]

for the last 2 years when i worked at a performance shop (LETHAL MOTORSPORTS (http://www.LethalMotorsports.com)), until i left on good terms 3 weeks ago to run my own shop.

every stock sr or rb that we needed to pass emmissions we bolted the same factory ka cat in place of the test pipe, ran it up to the emmissions station and passed emmissions.

the cat will also lower your hc's and co's so no worries. unless your car is heavily modded with a mediocre-bad tune, you shouldn't have any problem passing with just a cat....and yeah you'd be better off with a good factory cat. like i said, we used the same oem one over and over so i can't speak from experience if you're using an aftermarket cat.

if you change the oil before you get tested that'll lower your CO's a little as well. advancing your timing will lower hc's (unburnt fuel aka hydrocarbons) but will raise nox, retarding your timing will lower nox but raise hc's and co's.

you should definately let the car fully warm up before you get tested, new plugs wouldn't hurt either

you'll be fine sir.

Dave

totally off topic and yes you need a cat, but i thought it was funny the ls2 s14 I did didn't even need cats, yes the motor was an 06 obd2 powertrain but the s14 was a 95 and it passed the sniffer tests no problem.

[Psychomoongoose]

I live in Norcal, in a smog exempt zone. At least me car is register'd there... anyway i took it to a shop there (Lakeport, CA) and they looked at it and said it would pass visual if I could get a stock exhaust manifold. I convinced em it came with that mo-tire....

Blacktop SR20DET GT28
HKS Header
3" downpipe, HKS dragger exhaust (stock KA caty)
Greddy FMIC w/ custom piping
PowerFC tuned by Jei at Blacktrax, Milpitas, CA

just waiting on the manifold...should have some updates by next friday or so ill let yall knizzow. if no passy, i gotta get a effin KA and swap it in & outta there.....what a joke

:bite:

[jdm213]

hey thanks for the response, makes me feel a little better..now i'm thinking i should have gotten a closer to OEM cat.

i picked up a magnaflow 2.5" catalytic converter.

but you bring up a good point, i think with a brand new cat, NOX will be fine, but it's the other numbers that i'm mainly concerned with.

anyone else have input?

thats like a high flowing cat i doubt youll pass with that

[jdm213]

I live in Norcal, in a smog exempt zone. At least me car is register'd there... anyway i took it to a shop there (Lakeport, CA) and they looked at it and said it would pass visual if I could get a stock exhaust manifold. I convinced em it came with that mo-tire....

Blacktop SR20DET GT28
HKS Header
3" downpipe, HKS dragger exhaust (stock KA caty)
Greddy FMIC w/ custom piping
PowerFC tuned by Jei at Blacktrax, Milpitas, CA

just waiting on the manifold...should have some updates by next friday or so ill let yall knizzow. if no passy, i gotta get a effin KA and swap it in & outta there.....what a joke

:bite:

just pmed you :ddog:

[Psychomoongoose]

Jest got bacc from the smizzog shop. They couldnt pass it again cause the check engine light doesnt come on when the key is 'on'. They said its supposed to come on, then go off when you actually start the car. This place is almost 2 hours from my house, so needless to say im super stoked. Anyway does anyone know for sure how to make the check engine light act the way they said it should? Imma search this right now.....

[Z U L8R]

wire it in.

it goes from your ecu, to the dash plug behind the glove box. look up an ecu pinout, and look at a ka fsm to identify which wire to wire it to on the dash plug and as long as you don't have any existing problem, you shouldn't have a check engine light.

Dave

[TibDrifter]

A healthy stock sr will pass with flying colors, provided that you got a cat. I am a smog tech in cali and i have smoged sr20det, and they all have passed legally.
1. get a cat
2. retard the timing by 3-4 degrees just for the smog.
3. heat up the car real nice, getting the cat hot.
4. basic tune up. ex: sparkplugs, fuelfilter ....
5. The only real problem in cali is during the summer the nox gets too high, so try to smog it during a cold weather.
In your case you live in Ny so im guessing emmision is less strict so no worries, when i lived in WA i took my sr that was tuned for 550cc nd bigger turbo for a smog just to see the results and it passed without a cat.

as for the cel you can try to hook it up to the computer dlc or just find the 12+ and rig it.

[Psychomoongoose]

Got my CEL wired up to the oil pressure light, and now am set. Going to the smog shop tamarry so I will post the results for reference. Thanks to all that helped.

[Z U L8R]

lol NICE! :D

Dave

[Psychomoongoose]

Got to the smog shop, the guy put the sniffer in. Ran for about 1/2 hour and the guy realized theres no EGR stuff anywhere. He started looking at it and was like, 'this motor looks like its from a totally different era of car' and asked me if it was some other car. I said I didnt know and tried to play dumb. This didnt work, as my 1990 KA equipped car has a bunch of EGR and other smog stuff. Anyway, it ran clean enough to pass, it just wouldnt pass visual. If you guys want some numbers Ill post them if theres interest. Thanks to all who helped with the CEL and stuff.