California CAM
Thread Starter
Teching In
Joined: Feb 2004
Posts: 49
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From: san jose CA
California CAM i will be having a cam installed next month and i have a quick question? which of these 2 cams will pass smog EASIER with a LS1-edit tuning done--TR224-112 or the GM hot cam. the owner of the shop who will be doing the install and the edit says he will tune it one way then when i am due for smog bring the car in and he will tweak it to pass,then bring it back and he will change it back. when this was discussed we were talking about the hot cam. thanx for any info
I would go with the 224.
The long exhaust duration of the hot cam does not help emissions.
I've seen 224's run fair, but the 112 makes it alittle worse.
Does cali have obd emissions?
I know there pycho out there w/mods & emissions, has this shop done others?
The long exhaust duration of the hot cam does not help emissions.
I've seen 224's run fair, but the 112 makes it alittle worse.
Does cali have obd emissions?
I know there pycho out there w/mods & emissions, has this shop done others?
Thread Starter
Teching In
Joined: Feb 2004
Posts: 49
Likes: 0
From: san jose CA
the guy who owns the shop pretty much only works on LS1s,he owns a 2002 Firehawk,and he seems like he knows what he is talking about. he said he could get me to pass with a little tweaking on the tune on the hotcam.
Thread Starter
Teching In
Joined: Feb 2004
Posts: 49
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From: san jose CA
my first smog check since i bought the car will be in 4 months,so i will wait till i pass and then do the cam so i will have atleast a couple of years before i have to tweak the tuning. i think i can re-register the car early so i dont have to wait the 4 months to put the cam in.
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Launching!
Joined: Mar 2003
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From: Castaic Lake, So. Cal.
Beware, smog checks now include a OBDII pcm check to see if the program has been altered. So if you return your pcm to stock, you may not pass the test due to high emissions. If you have a "smog tune done", you may fail the OBDII test. The LS6 cam should pass, as long as you lean it out before the test, and drive at least 60 miles to clear the PCM buffer.
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Originally Posted by BAD XXX
Beware, smog checks now include a OBDII pcm check to see if the program has been altered. So if you return your pcm to stock, you may not pass the test due to high emissions. If you have a "smog tune done", you may fail the OBDII test. The LS6 cam should pass, as long as you lean it out before the test, and drive at least 60 miles to clear the PCM buffer.
Launching!
Joined: Nov 2001
Posts: 245
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From: Over There!
This is the main reason I went with the TR224-114. The 114 LSA should pass OK, or so goes the theory anyway. 
I'm kind of in stealth mode for the next two years though, since I got my car smogged this past September and have 1½ years to go for the next one... 
'Till then though:
I'm kind of in stealth mode for the next two years though, since I got my car smogged this past September and have 1½ years to go for the next one... 'Till then though:
Last edited by Nightclaw; Feb 18, 2004 at 10:29 AM. Reason: Notification Change
On The Tree
Joined: Nov 2002
Posts: 140
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From: San Diego, CA
Originally Posted by BAD XXX
Beware, smog checks now include a OBDII pcm check to see if the program has been altered. So if you return your pcm to stock, you may not pass the test due to high emissions. If you have a "smog tune done", you may fail the OBDII test. The LS6 cam should pass, as long as you lean it out before the test, and drive at least 60 miles to clear the PCM buffer.
Now my question is what cam characteristic(s) most severely affects emissions? Is it lift? Duration? Overlap (i.e. LSA, ICL)? or all three? If I were to design a cam (turbo app, btw) which of these, if any, would I sacrifice? Would, say, a cam with long duration, medium (.580) lift and wide LSA (no overlap) pass, assuming everything else is stock / in compliance?
Launching!
Joined: Mar 2003
Posts: 238
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From: Castaic Lake, So. Cal.
I agree. I don't think that fuel or spark curves will show up in the test. Do not reset the PCM or disconnect the battery before a smog, and if you detune your car for smogging, do it a couple of days before you take it in and put on around 60-100 miles. Most logging software can perform the same OBD test, I think.