Smog Test
Thread Starter
Instructor
Joined: Jul 2008
Posts: 154
Likes: 0
From: CA
Smog Test
Heres my question...
How do people pass smog tests when their cars are heavily modified? I seen a couple of those Honda Civics on the road where Im pretty sure 90% of it is not stock. How do people pass their smog tests when they have all these modified parts in their car?
How do people pass smog tests when their cars are heavily modified? I seen a couple of those Honda Civics on the road where Im pretty sure 90% of it is not stock. How do people pass their smog tests when they have all these modified parts in their car?
Team Owner
Joined: Aug 2006
Posts: 24,125
Likes: 15
From: Columbia Missouri
Depends where you live. I don't have to smog test a car here to get it tagged.
I know some people will leave the smog equipment on the car for the test, and remove it after. Then reinstall it for the next test.
Also, some states that DO require smog, don't require it past a certain year.
It really just depends on where you live and you local laws.
I know some people will leave the smog equipment on the car for the test, and remove it after. Then reinstall it for the next test.
Also, some states that DO require smog, don't require it past a certain year.
It really just depends on where you live and you local laws.
Race Director
Joined: Jul 2004
Posts: 12,681
Likes: 329
From: Scottsdale Arizona
Some modification parts are also 50 states legal. Edelbrock has a number of these. It is possible to do mods with these parts and remain smog legal as long as the emissions aren't out of range as a result.
Drifting
Joined: Aug 2007
Posts: 1,838
Likes: 13
From: Kingman AZ
My daughters boyfriend has a fart can accura that is a DD and occasionally goes to the track. He replaces the orginal engine every 2 years. You can do some mods as stated and get away with it. Myself I plan to go with aluminum heads, ZZ4 intake manifold and a cam fron a 327 rated at 350 hp. Hi-flow cat and good mufflers. Fortunately mine is 49 federal smog car and doesnt have an A.I.R pump. Should get me about to about 300 HP and pass.
Last edited by rayluka; Dec 23, 2008 at 02:37 PM.
Melting Slicks
Joined: Mar 2008
Posts: 2,336
Likes: 1
From: North Bellmore Ny
St. Jude Donor '09
How well do you know your mechanic? Mine does even touch my vette, He make me go through the lights and flashers. puts it on the lift makes a visual inspection and puts the inspection sticker in the window. On newer cars here in NY they hook car to computer not exhaust. So if you put on sensor plug that prevent the check engine light to come on and your mechanic ignores the visual part. You will pass.
Drifting
Joined: Jun 2005
Posts: 1,950
Likes: 498
From: Chino Hills CA
Simple. If you plan to modify a vehicle, make sure it is one that is old enough so it is exempt. If you have one that must pass smog, leave it stock. I don't know how many people here in So Cal are pulling their hair out because they own a modified '76 or '77 and can't get it to pass. Look at late models. The old cars are the only ones worth keeping. The newer cars will be up for sale sooner or later. Modify a late model and you never get that money back. Check the ads for used C5's. The cheapest ones are the ones people screw with. The ones that are worth anything are the ones that were left alone.
Thread Starter
Instructor
Joined: Jul 2008
Posts: 154
Likes: 0
From: CA
Well, My plan now has changed for the car, I just want to restore it but have a little bit more ooomph and more aggressive sound. thanks guys! i'll be leaking for 50 state carb exempt parts now!
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Pro
Joined: Jan 2006
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Simple. If you plan to modify a vehicle, make sure it is one that is old enough so it is exempt. If you have one that must pass smog, leave it stock. I don't know how many people here in So Cal are pulling their hair out because they own a modified '76 or '77 and can't get it to pass. Look at late models. The old cars are the only ones worth keeping. The newer cars will be up for sale sooner or later. Modify a late model and you never get that money back. Check the ads for used C5's. The cheapest ones are the ones people screw with. The ones that are worth anything are the ones that were left alone.