Page 2 of 2 FirstFirst 12
Results 21 to 39 of 39

Smog Cam

This is a discussion on Smog Cam within the Internal Engine forums, part of the LSx Technical Help Section category; also, my smog guy told me that any tuning to your PCM will automaticaly fail the smog test. I don't ...

  1. #21
    Member xmarkx's Avatar
    Join Date
    Mar 2010
    Location
    EAST bay area Cali
    Posts
    634

    black
    1999 camaro SS

    also, my smog guy told me that any tuning to your PCM will automaticaly fail the smog test. I don't know how they can tell so I don't know if you can be caught using a tune but aparently that's the law....

  2. #22
    Member c5z28's Avatar
    Join Date
    Apr 2008
    Location
    Bay Area
    Posts
    8,120

    On your ass flashing
    my highbeams

    Only if it throws a code, there are plenty of f-body's and corvettes w/ cams, s/c who pass every two years when the time comes. Now the dealership can tell if you have had a tune and then put it back to stock for say warranty issues

    I guess our pcms and especially the new ones have a code that when tampered w/ by someone else lose that code at least that is what my gm teacher told me.

  3. #23
    Moderator Firebirdjones's Avatar
    Join Date
    May 2006
    Location
    Arizona
    Posts
    12,552
    Quote Originally Posted by xmarkx View Post
    for a short time I was interested in the cheaTR cam so I called TR and told them straight up that I'm seriousley interested in this cam but only if it's 100% going to pass smog. the tech told me that he had someone buy the cam who lived in Cali and he's passed smog twice with it now.
    Interesting. Thanks for that. I've always been interested in doing a sleeper cam in my 02. Not sure if I will, but the thought of a smooth idle to go along with the stock outward appearance yet running quick sure is appealing.

  4. #24
    Member c5z28's Avatar
    Join Date
    Apr 2008
    Location
    Bay Area
    Posts
    8,120

    On your ass flashing
    my highbeams

    Quote Originally Posted by Firebirdjones View Post
    Interesting. Thanks for that. I've always been interested in doing a sleeper cam in my 02. Not sure if I will, but the thought of a smooth idle to go along with the stock outward appearance yet running quick sure is appealing.
    You can get a cheatr cam w/ a 112 lsa not all of them have a 115lsa or higher

  5. #25
    Member xmarkx's Avatar
    Join Date
    Mar 2010
    Location
    EAST bay area Cali
    Posts
    634

    black
    1999 camaro SS

    Quote Originally Posted by c5z28 View Post
    You can get a cheatr cam w/ a 112 lsa not all of them have a 115lsa or higher
    they also have a cheatr H/C package too that could pass smog, sounds stock and claims to make pretty good power

  6. #26
    Member c5z28's Avatar
    Join Date
    Apr 2008
    Location
    Bay Area
    Posts
    8,120

    On your ass flashing
    my highbeams

    Quote Originally Posted by xmarkx View Post
    they also have a cheatr H/C package too that could pass smog, sounds stock and claims to make pretty good power
    Link?

  7. #27

  8. #28
    Junior Member
    Join Date
    Mar 2010
    Location
    San Diego, California
    Posts
    52

    Pewter
    2001 SS Convertible

    I really would like it to sound like it is cammed I just don't want to fail smog. Is it hard to install a cam in an LS1? I hear you have to drop the engine and all that...

  9. #29
    Member c5z28's Avatar
    Join Date
    Apr 2008
    Location
    Bay Area
    Posts
    8,120

    On your ass flashing
    my highbeams

    Very nice I would ask them to clear up that 394 claim when the graph says 384.
    That's good to see some dyno#'s in the 400's w/ a smog legal setup especially since the afr's are more than likely as cast.

  10. #30
    Member xmarkx's Avatar
    Join Date
    Mar 2010
    Location
    EAST bay area Cali
    Posts
    634

    black
    1999 camaro SS

    Quote Originally Posted by seamurda View Post
    I really would like it to sound like it is cammed I just don't want to fail smog. Is it hard to install a cam in an LS1? I hear you have to drop the engine and all that...
    LS1howto.com

  11. #31
    Moderator Firebirdjones's Avatar
    Join Date
    May 2006
    Location
    Arizona
    Posts
    12,552
    Quote Originally Posted by seamurda View Post
    I really would like it to sound like it is cammed I just don't want to fail smog.
    And that's the problem. To get that sound you need overlap in the camshaft. To get that you tighten the lobe seperation. Unfortunately tighter lobe seperation and sniffer machines don't like each other.

    You might get away with a little bit, but it's a fine line.

    Like I mentioned, the camshaft in my wifes car is on a 112 lobe sep but the duration numbers are very tame. It passed the sniffer, but only has an ever so slight lope, and probably not enough for people looking for that sound.

    When I bought the car idle was set at 600 rpms and it was more noticable. I raised that to 800-850 rpms to smooth it out a tad. It's still there but you would really have to listen for it. It's still enough to shake the shifter in your hand a bit.
    Since it's a driver for my wife I didn't want all that lopey stuff. It's now tame enough that it doesn't even bother her, and she would be the first to tell ya she doesn't really notice it.

    If you take this same cam I'm running and simpy raise the duration a tad to say,,,,224, it would be pretty much the same 224 cam that seems to be popular with alot of people on the board here. It would also help to create a little more sound for you, but tougher to pass smog.

  12. #32
    Moderator Firebirdjones's Avatar
    Join Date
    May 2006
    Location
    Arizona
    Posts
    12,552
    Quote Originally Posted by c5z28 View Post
    Very nice I would ask them to clear up that 394 claim when the graph says 384.
    That's good to see some dyno#'s in the 400's w/ a smog legal setup especially since the afr's are more than likely as cast.
    There seems to be 2 tests on there. One with an LS6 manifold, and the other with a FAST manifold along with an 85mm MAF and 36 lbs. per hour injectors.

    Maybe that's the descrepancy???

  13. #33
    Member c5z28's Avatar
    Join Date
    Apr 2008
    Location
    Bay Area
    Posts
    8,120

    On your ass flashing
    my highbeams

    Quote Originally Posted by Firebirdjones View Post
    There seems to be 2 tests on there. One with an LS6 manifold, and the other with a FAST manifold along with an 85mm MAF and 36 lbs. per hour injectors.

    Maybe that's the descrepancy???
    Yah but the ls-6 test says 384 and the fast says 411. No big deal

  14. #34
    Member
    Join Date
    Jun 2009
    Location
    coon rapids, MN
    Age
    52
    Posts
    404

    red
    2000TA

    some body should do emissions sticky,cams,exhaust,tuning to pass.

  15. #35
    Member RedSmokey's Avatar
    Join Date
    Feb 2009
    Location
    CA (sacramento)
    Posts
    226

    Black
    F250

    That setup looks AWSOME!

  16. #36
    Member xmarkx's Avatar
    Join Date
    Mar 2010
    Location
    EAST bay area Cali
    Posts
    634

    black
    1999 camaro SS

    the only way to beat emissions is save all your stock junk and put it back on every 2 years. I don't know about other places in Cali but around where I live people have loud a$$ cars everywhere I go wether it be no mufflers or speakers in the grille of the car or 12 inch speakers blasting in the trunk. what all those things have in common is they're all used illegaly because they're all too loud but so many people do it that it's normal.

    that being said the only thing I'm worried about is passing smog every 2 years because i'm pretty confident that police are not going to pull me over for my car being "too loud" and sending me to the ref. also it will give you a chance to look around inside every couple of years to make sure everything is looking good as well as give you an excuse to use fresh gaskets and hardware.

  17. #37
    Member c5z28's Avatar
    Join Date
    Apr 2008
    Location
    Bay Area
    Posts
    8,120

    On your ass flashing
    my highbeams

    Just don't act stupid and they never bother you, duals w/ headers and no problems yet

  18. #38
    Member Bowtie Guy's Avatar
    Join Date
    Oct 2005
    Location
    North San Diego County,CA
    Age
    68
    Posts
    193

    Pewter
    2002 Z28 M6

    AFR 205 and one of the Edelbrock heads have a CARB EO# so they are smog legal in Calif. and cams are not. So buy a cam with little overlap (stock sounding idle) and you should be good to go.

  19. #39
    Member c5z28's Avatar
    Join Date
    Apr 2008
    Location
    Bay Area
    Posts
    8,120

    On your ass flashing
    my highbeams

    camshaft max overlap is -4(smog) I am almost 100% positive
    http://www.wallaceracing.com/overlap-calc.php

Page 2 of 2 FirstFirst 12

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Similar Threads

  1. Question: Ca smog
    By tingo99 in forum General Help
    Replies: 19
    Last Post: 01-08-2010, 12:50 PM
  2. SMOG!?!??!?!
    By wanna_lS1 in forum Firebird / WS6
    Replies: 0
    Last Post: 07-20-2009, 07:26 PM
  3. ? about smog
    By ndt/oos in forum Western Members
    Replies: 8
    Last Post: 11-22-2007, 10:27 AM
  4. sts smog in sd
    By eas02 in forum Western Members
    Replies: 11
    Last Post: 11-29-2006, 09:56 AM
  5. car smog q's
    By chad2000ss in forum Camaro / SS
    Replies: 3
    Last Post: 10-07-2006, 12:25 AM

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •