smoging built 383 in so. calif.
Thread Starter
Racer
Joined: May 2014
Posts: 416
Likes: 29
From: diamond bar ca
smoging built 383 in so. calif.
This topic is something i have been wondering about and has had me worried , i do not have to worry about it this year but my 96 will require a smog check next year, i have been told that my 383, hot cam, with 1.6 rr s will not pass because of more stringent emission testing, some say it can be tuned to pass but get conflicting opinions on that, so lets say worst case scenario is if it cannot be tuned to pass then i will have to replace the cam of different spec s or sell it to someone in another state. any opinions or advice would be appreciated...Ps. when i built this earlier this year i was told i would have no problems,, go figure,,,very confused.
Melting Slicks
Joined: Jun 2013
Posts: 3,065
Likes: 39
Since all of those things are hidden you should pass the visible part. If it was me I'd try to make sure the exhaust was as quiet as possible and with some tuning to timing it might be possible to make it sound like a stock idle. If the cam doesn't have much overlap and you still have cats it should pass I would think.
Team Owner
Joined: Oct 2004
Posts: 81,241
Likes: 3,062
From: altered state
St. Jude Donor '05
Do a pretest it doesnt go in the system
Theres a gentelman out by you whose a pretty good "in person" tune, Don Lorensen I beieve he can get it to pass for real.
Think this may be him
http://www.top-downsolutions.com/dyn...with-air-tubes
look under "contact"
Louder than stock mufflers not a problem
Think smogs bad
Wait til caltrans passes its pay by the mile law
....matter of time, this kids GONE.
They are already doing a "pilot program" ie "taking volunteers". Just wait..
Theres a gentelman out by you whose a pretty good "in person" tune, Don Lorensen I beieve he can get it to pass for real.
Think this may be him
http://www.top-downsolutions.com/dyn...with-air-tubes
look under "contact"
Louder than stock mufflers not a problem
Think smogs bad
Wait til caltrans passes its pay by the mile law
....matter of time, this kids GONE.They are already doing a "pilot program" ie "taking volunteers". Just wait..
Last edited by cv67; Aug 6, 2016 at 10:55 AM.
Race Director
Joined: Apr 2003
Posts: 17,697
Likes: 1,666
From: moraga ca
I'm not sure, but I thought the new smog test in California required plugging into the obd port to ensure all systems are go and a visual check with to tailpipe sniffing. This went into effect a couple years ago and stations have been slow to adopt.
Melting Slicks
Joined: Dec 2008
Posts: 2,772
Likes: 64
From: Mystic CT
That is what they do in CT along with checking the gas cap. Never did a visual check.
Pro
Joined: Oct 2013
Posts: 620
Likes: 117
From: Denver CO
They put the car on a dyno to simulate road conditions, as well as an idle check and visual check. If it's running too rich, you'll fail the test. Fail it 3 times, and you're a "gross polluter". To fix that, you'll have to go to a referee.
He lives in Diamond Bar, he's subject to all of the above.
He lives in Diamond Bar, he's subject to all of the above.
Last edited by MSGT-R; Aug 14, 2016 at 10:58 PM.
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Melting Slicks
Joined: Jan 2009
Posts: 3,482
Likes: 195
From: folsom california
FWIW my LT4 with a "Hot Cam" passed easily; there are others with similar success stories;
But I cannot over emphasis, the visual will kill you, even if the tail pipe test is squeaky clean.
But I cannot over emphasis, the visual will kill you, even if the tail pipe test is squeaky clean.
Last edited by mtwoolford; Aug 15, 2016 at 12:32 AM.
Racer
Joined: Sep 2011
Posts: 400
Likes: 5
From: Bakersfield Ca
Chose your smog shop accordingly.
You can retest with old parts on . If you have them. Visual only I was told. No penalty.
Good luck
Advanced
Joined: Jul 2004
Posts: 59
Likes: 7
They put the car on a dyno to simulate road conditions, as well as an idle check and visual check. If it's running too rich, you'll fail the test. Fail it 3 times, and you're a "gross polluter". To fix that, you'll have to go to a referee.
He lives in Diamond Bar, he's subject to all of the above.
He lives in Diamond Bar, he's subject to all of the above.
Newer cars just have to pass ODB emmissions ready tests and a visual.