Just Failed CA Smog. Now what? - ZR-1 Net Registry Forums

WARP TEN · 02-26-2015

Quote:

Originally Posted by Okiedoke

There was some text written in the engine bay by the air intake. There's supposedly a difference between a car build for CA vs a car than can be legally sold in CA. I would need to do a search to see if I can find it again, but I remember reading a post in these forums that said all the ZR-1s were the same. There were no special ones made specifically for CA. Maybe others with more knowledge in this area can shed more light on this topic.

The window sticker on my '95 lists "California Emissions Requirements" at $100, just below the Roof Package at $950. I believe the CAR was primarily an A.I.R system (which for me in Illinois is now in a box). --Bob

glkuntz · 02-26-2015

I thought it might be informative to show what has changed over time in Ca for those of us who have to deal with it.

My car is a 1990 Ca delivered car that I have owned since 1995. It has always passed the smog test, albeit, marginally sometimes. It has always been entered as a California spec car and with just Corvette as the model.

Below are the results from 2008 and 2010. Sometime between these two tests the limits were reduced by about 1/3 as you can see from the max allowable columns.

2008

2010

Additionally for 2010 the test required that the 25 MPH test be done in second gear, causing the car to essentially lug along at very low RPM. This does not represent real world driving and, while I'm not an engineer, it would seem this could contribute to the poor readings. My car, as a 1990, has no EGR valve, so trying to obtain the required results is difficult at best.

In the near future I will go to a smog station and see if they can do the test using the "Federal" as the certification, along with "Corvette ZR1" as the model designation, and if so does it makes any difference. I really hope so as it would make life a lot easier.

Stay tuned.

Gary

Okiedoke · 02-26-2015

Quote:

Originally Posted by glkuntz

Below are the results from 2008 and 2010. Sometime between these two tests the limits were reduced by about 1/3 as you can see from the max allowable columns.

2008

2010

The table isn't showing up for me. I just see the two years.

02-26-2015	#2
glkuntz Join Date: Jan 2011 Location: Northern Calif Posts: 16	Re: Just Failed CA Smog. Now what? I thought it might be informative to show what has changed over time in Ca for those of us who have to deal with it. My car is a 1990 Ca delivered car that I have owned since 1995. It has always passed the smog test, albeit, marginally sometimes. It has always been entered as a California spec car and with just Corvette as the model. Below are the results from 2008 and 2010. Sometime between these two tests the limits were reduced by about 1/3 as you can see from the max allowable columns. 2008 2010 Additionally for 2010 the test required that the 25 MPH test be done in second gear, causing the car to essentially lug along at very low RPM. This does not represent real world driving and, while I'm not an engineer, it would seem this could contribute to the poor readings. My car, as a 1990, has no EGR valve, so trying to obtain the required results is difficult at best. In the near future I will go to a smog station and see if they can do the test using the "Federal" as the certification, along with "Corvette ZR1" as the model designation, and if so does it makes any difference. I really hope so as it would make life a lot easier. Stay tuned. Gary