Not another smog delete thread
Thread Starter
Racer
Joined: Sep 2022
Posts: 338
Likes: 67
From: Escondido, CA
Not another smog delete thread
What's the current state of the art for smog design in a "street legal" "resto-mod"?
Let me clarify. Must I achieve California smog standards with 35 year old smog design or are there better ways? Can I pass smog test at the exhaust tip with a crate motor without including all the ancient smog systems? If I do a simple rebuild, are there any improvements I can make along the way? What do I have to keep, what can I upgrade? Are there ways to make the improvements and get around visual inspection?
My point is that I don't want to cripple my smog systems; I want to modernize and improve them.
So maybe an alternative way to ask is to say "How can I modernize smog so my '88 corvette is street legal and performs better than my '22 [brand excluded to avoid silly rabbit holes...]?"
BTW, I'm considering rebuild vs crate but I haven't a clue what to do about this smog issue
Let me clarify. Must I achieve California smog standards with 35 year old smog design or are there better ways? Can I pass smog test at the exhaust tip with a crate motor without including all the ancient smog systems? If I do a simple rebuild, are there any improvements I can make along the way? What do I have to keep, what can I upgrade? Are there ways to make the improvements and get around visual inspection?
My point is that I don't want to cripple my smog systems; I want to modernize and improve them.
So maybe an alternative way to ask is to say "How can I modernize smog so my '88 corvette is street legal and performs better than my '22 [brand excluded to avoid silly rabbit holes...]?"
BTW, I'm considering rebuild vs crate but I haven't a clue what to do about this smog issue
Team Owner
Joined: Oct 2004
Posts: 81,241
Likes: 3,063
From: altered state
St. Jude Donor '05
It all has to be there in the stock location.
Id leave it be...maybe take the pump, accessories off, polish them, brackets etc.
my 67 is supposed to have a smog pump on it. No they dont ck but if they wanted to they could give me a real issue
CHP is a stickler for stuff like that. Modern cats work much better than the old pellet type. Make sure they have the Ca EO # stamped on them they check.
Id leave it be...maybe take the pump, accessories off, polish them, brackets etc.
my 67 is supposed to have a smog pump on it. No they dont ck but if they wanted to they could give me a real issue
CHP is a stickler for stuff like that. Modern cats work much better than the old pellet type. Make sure they have the Ca EO # stamped on them they check.
Instructor
Joined: Apr 2022
Posts: 229
Likes: 40
From: NorCal
> Can I pass smog test at the exhaust tip with a crate motor without including all the ancient smog systems?
you could pass smog/inspection with a new crate engine that is CARB certified and includes modern computer and CATS (search E-ROD LS3 ) FYI if you weren't aware of that, but its pricey
you could pass smog/inspection with a new crate engine that is CARB certified and includes modern computer and CATS (search E-ROD LS3 ) FYI if you weren't aware of that, but its pricey
