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Old Mar 30, 2009 | 10:35 PM
  #1  
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Default Ca Smog Test Help

Going to get my car smogged tomorrow for the new owner. anything I can do to prepare. I changed the oil yesterday, put a bottle of Techron a couple of fillups ago. I am planning on driving the car 30 minutes before the test. Any other suggestions.

it has a mild cam 218/226 .563”/.570” 116LSA with the Maggie blower & LT headers, Xpipe, Corsa exhaust with the stock cats still installed.

The last smog test done 10 months ago had one of the HC levels at the max.
@15mph 1743 rpms max 54 meas 51
@25mph 1992 rpms max 37 meas 37

All the rest were nowhere close to the max. No other changes to the engine all the same parts. I just want to make sure I do go over on the HC this time.
I am getting tested at a dealership that said just make sure the car will pass the sniff test. I am trying to make sure I hold up my end of the bargain.
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Old Mar 31, 2009 | 04:43 AM
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There are alcohol additives you can get to keep the HC's down at test time, they "guarantee you'll pass".
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Old Mar 31, 2009 | 10:38 AM
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You'd better pray the dealership tech doesn't notice the LTs. They are illegal in CA. Other than that, I'm not sure what else you can try, other than the additive that Doug mentioned.
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Old Mar 31, 2009 | 10:47 AM
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10%-15% of xylene in your tank and HC goes down to minuscule amounts. It worked every time on my 944's that were a pig on emissions.
It's available at any house paint store. And before a bunch of people start barking about putting 'junk' in your tank... xylene is the one ingredients used in octane boosters that does the boosting. (you can search on 'home made octane boosters' and check it out)
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Old Mar 31, 2009 | 11:13 AM
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The LT's have already been mentioned to the smog guy. He says as long as it passes the sniffer he is ok.

i will look up the xlene. can you buy that at Kragens?
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Old Mar 31, 2009 | 02:53 PM
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That smog guys is risking a lot. Don't get me wrong, I'm glad you found someone who will look the other way, but once that guy is gone, so may be your free pass on the visual.

....been there, done that with my 68.....
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Old Mar 31, 2009 | 03:37 PM
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My HC's were border line when I tested a couple of weeks ago . Like to know more about the alcohol additives. Any links??
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Old Mar 31, 2009 | 08:37 PM
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Originally Posted by Dave68
That smog guys is risking a lot. Don't get me wrong, I'm glad you found someone who will look the other way, but once that guy is gone, so may be your free pass on the visual.

....been there, done that with my 68.....
I know him personally. He's a very good friend. So yes he is risking alot, but I asked him many times if it's a problem & he said no.
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i had a hard time passing mine with just LT and CAI
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Old Apr 1, 2009 | 01:55 AM
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sucks for the "new owner" does he know about all the things he is going to have to go through at the next smog? I hope.
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