BlkBrdWS6

iTrader: (1)

Hey guys! We have the sniffer with the roller dyno thing in MO. I was wanting to put an LS1 Hotcam in my WS6 along with some TTS Longtubes with cats and GMMG catback. If I would get a good tune, do you think I could pass the sniffer? Thanks for any opinions and info!

beardWS6

iTrader: (1)

Check Sig, I passed with X1 Cam and all in Texas!

mcflyz28

I'l find in July, not expecting any problems.

TaTommyWS6

I think with a good tune, a raised idle, and your cats in the stock position (not moved further away from the engine because of LTs), you should be ok.

SSCamaro99_3

iTrader: (1)

It is OBDII in MO. If you get a good tune, you should pass the computer, and be on your way.

RhinoTA

iTrader: (1)

I was wondering the same thing....im in chicago, which is the sniffer with dyno.

SSCamaro99_3

iTrader: (1)

The only way to pass a roller test is with cats. No cats and you best have the worlds best emissions tune, and pray.......HARD. We hooked mine up to a sniffer for fun. Wasn't even close.

ss rally red

iTrader: (8)

I have been doing ET in Ga for almost 6 years at our shop, 96 and up cars get OBDII testing which we all know can be passed with LS1 edit with almost any setup(we have NO visual inspection on OBD cars here) just for fun I ran my 02 with Lt's ORY, hotcam(see sig) in manual mode and it would pass the levels set for 95 LT1 cars! These were the last standards available of course because after 96 25/25 and 50/15 testing was not required. It was close on NOx because of no cats but would pass HC & CO, which was suprising.

RPM WS6

iTrader: (3)

No it's not.

IL has 8 counties total that test. All of these counties use OBD scan test only for '96 and newer cars. And yes I'm sure of this. All you have to do is pass the scan test, nothing LS1 Edit can't take care of for you...

The I/M240 crap you are thinking of is for '81-'95 cars. Pre-'81 are sniffer only (no dyno)....

MUSTANGEATER

iTrader: (10)

The Gateway STL Clean air act is so pathetically Easy to pass. You don't even need to tune your computer for performance but just turn off all your SES codes and delete prior history. Personally I wouldn't get those TTS headers. If you want Tuning I would contact Mark@ Raging Motorsports 913-814-RAGE or Ron@ Davinci Motorworks 618-222-1201 if you want any local help.

Best of luck

Floyd

RhinoTA

iTrader: (1)

Thats good to know....I assumed it was both because I used to have a 98 civic and they ran it on the dyno thingy, or I/M240?

RPM WS6

iTrader: (3)

Yes, because up until 2002, they still used I/M240 even for '96 and newer cars. But that pratice is no longer. OBD scan only for '96 and up now.

You must have had your '98 tested in early '02. When I had my '96 Bonneville tested in May of '02 it was OBD scan only.

They still pull the cars up on the dyno to plug into the PCM, but they don't actually put anything in the tail pipe or run the car on the dyno ('96 and up).

TA2SLOW346

iTrader: (3)

Do they check to see if your vin# in the pcm matches the one on the car?

RPM WS6

iTrader: (3)

I don't know.

I've never tried to pass one with a non-matching VIN???

MUSTANGEATER

iTrader: (10)

Nope, they only check that car's VIN #, Your Registration, and then They give you the gascap test and then the Scan test for Current and Past Codes. If you fail the scan test you take the pre 96 roller test w/ the dyno.

RhinoTA

iTrader: (1)

Yep, I had it tested in '02, i cant remember when, but it was definetly early in the year. Thats really cool though, Ive almost disregarded getting cam and headers thinking i would be screwed come test time. Thanks for that info! looks like its time for some Rumpity Rump!

RPM WS6

iTrader: (3)

Actually, even in states that still do tail pipe testing many cams will pass if you run cats. Emissions testing should not keep anyone from doing cam & headers, just keep in mind that if your state still does tail pipe testing you'll need cats and a mild to mid sized cam. Any 224/224 114lsa or smaller cam should pass the sniffer with cats.

Pro Stock John

iTrader: (34)

I tested my 99 Tahoe this summer and they just plugged into the OBDII port on the truck.

I have heard of 2-3 hotcammed LS1's passing even the rollers around Chitown.

RPM WS6

iTrader: (3)

How'd they get a roller test? Were these tests in early '02 or before? Or did they opt for roller after failing OBD scan due to codes?

I think they are no longer offering even the option for roller tests on '96 and up cars as of 1/1/04. You must now pass the scan.

RhinoTA

iTrader: (1)

Thats cool....I do plan on keeping cats in the scenario. Ive got that loudmouth exhuast so i figured cats would help keep the noise at a reasonable level with headers.