Passed CA Emissions - Page 6 - ZR-1 Net Registry Forums

mike100 · 12-28-2011

I'm inclined to think the catalysts are degraded (the NOx part of it- which is only a portion of it anyways). Running it with a deluge of oxides of nitrogens will weaken the part that treats it. Same with excessive HC's to the 2way part of the 3-way cat.

You just will have to make your own Cat-ted headers with an exemption due to not being legal to import used parts into CA any longer. Too bad as 600 would have passed in some counties and probably about 49 other states.

Z51JEFF · 12-28-2011

Quote:

Originally Posted by mike100

You just will have to make your own Cat-ted headers with an exemption due to not being legal to import used parts into CA any longer.

There is a member here in Ca that did just that.

RedRiderZR1 · 12-28-2011

Proof with good manifold/CATS that you can get good numbers. New manifold/CATS I bought off a guy that drove his car home new and took the manifolds off and put headers on. He said they had probably 20 miles or so on them. Looked like it. They looked brand new. This on a car with nearly 100k on the clock. But new oil and fresh gas and plugs are crucial. As well as no vacuum leaks and of course getting those CATS HOT. Usually drive around a while and drive it right on the rollers. The 2011 numbers were higher but just put in fresh gas and oil change. No tune up but should have. Even still it passed with no issues.

I hate that they can lower the numbers to try and get older cars off the road. Really getting to hate this state.

12-28-2011	#51
mike100 Join Date: Feb 2011 Location: San Marcos CA Posts: 1,801	Re: Passed CA Emissions I'm inclined to think the catalysts are degraded (the NOx part of it- which is only a portion of it anyways). Running it with a deluge of oxides of nitrogens will weaken the part that treats it. Same with excessive HC's to the 2way part of the 3-way cat. You just will have to make your own Cat-ted headers with an exemption due to not being legal to import used parts into CA any longer. Too bad as 600 would have passed in some counties and probably about 49 other states.

12-28-2011	#53
RedRiderZR1 Join Date: Jun 2005 Location: Orange County, California Posts: 75	Re: Passed CA Emissions Proof with good manifold/CATS that you can get good numbers. New manifold/CATS I bought off a guy that drove his car home new and took the manifolds off and put headers on. He said they had probably 20 miles or so on them. Looked like it. They looked brand new. This on a car with nearly 100k on the clock. But new oil and fresh gas and plugs are crucial. As well as no vacuum leaks and of course getting those CATS HOT. Usually drive around a while and drive it right on the rollers. The 2011 numbers were higher but just put in fresh gas and oil change. No tune up but should have. Even still it passed with no issues. I hate that they can lower the numbers to try and get older cars off the road. Really getting to hate this state. __________________ 1990 Bright Red ZR1 #41 ZR-1 Net Registry Founding Member #415