C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

Smog need help!

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Old Mar 30, 2007 | 02:30 AM
  #1  
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From: Hilmar Ca
Default Smog need help!

1986 l98 with Lt mufflers with precat delete system from MA but with one main cat stock manifolds with a cut air lid 9.7:1 copression slighly bigger cam 355 with about 2000 miles pass smog in california?
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Old Mar 30, 2007 | 01:24 PM
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Who knows, take it and see... get a tune up first, make sure she's good and hot.. I don't have my remote by state sniffer hooked up
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Old Mar 30, 2007 | 02:58 PM
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I see a question mark, but I don't read a question in there. The title to the thread says, "Smog need help!". What needs help, you or your smog? What help is needed?

RACE ON!!!
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Old Mar 30, 2007 | 03:09 PM
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Is it already registered? IOW, is it a CA car with an MA exhaust or an out of state car you're transferring? If OOS you'll need to check and make sure it's 50 state legal. Otherwise you can't register it regardless of whether or not it'll smog UNLESS you received it in a divorce or as an inheritance (going through this with an out of state vehicle right now).
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Old Apr 1, 2007 | 12:52 AM
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No the car curently has a true duel exhaust with no cats... I was wondering if that MA exaust would work? its not cal legal but maybe they wont notice
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Old Apr 1, 2007 | 01:57 AM
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They do visual as well as electronic....Since you live in Cal, haven't you had a smog test before?? Same applies
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Old Apr 1, 2007 | 02:00 AM
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Youll need cats for sure. If they check for pre cats youll fail the visual, take your chances but they are pretty thorough.
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Old Apr 1, 2007 | 10:47 AM
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I have lived in California for 15 years. They will fail any car with any change that has no CARB number. You cannot change the exhaust before the cat. Cat backs are OK. I would go get it smogged. If it fails, you can take the car to a referee. You can argue with them about what needs to be changed. When I moved here I had a truck without California emmisions. I paid a fee and upgraded it. Then they approved it.

Last edited by Kool88vette; Apr 1, 2007 at 10:49 AM.
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Old Apr 1, 2007 | 09:29 PM
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Default Smog

Oscar,
I don't think the precat eliminator is going to matter. i think you will pass if your cat is good and the smog pump is working and the diverter valves are functioning and the cat pipe is intact.
Chris
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