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Exhaust Gas Analyzer

Discussion in 'Technical Q&A' started by docweed, Oct 4, 2005.

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  1. docweed

    docweed Formula Junior

    Dec 8, 2004
    452
    Morgantown,WV
    Full Name:
    Chuck Stewart
    #1 docweed, Oct 4, 2005
    Do any of you use a exhaust gas analyzer to adjust your carbs and will they work on the 308's i.e. are there separate exhaust pipes for each carb or is all the gas mixed in the muffler before it exits the car? Any low end models you would recommend?
     
  2. chrismorse

    chrismorse Formula 3

    Feb 16, 2004
    2,150
    way north california
    Full Name:
    chris morse
    #2 chrismorse, Oct 4, 2005
  3. snj5

    snj5 F1 World Champ

    Feb 22, 2003
    10,213
    San Antonio
    Full Name:
    Russ Turner
    #3 snj5, Oct 4, 2005
    Last edited by a moderator: Sep 7, 2017
    I use an LM-1 on board analyzer i got from Pelican Parts. It is VERY cool and helpful. I do wish i had spent a buck or two and gotten the rpm probe with it.
    The link below has a couple of examples. I keep A/F records of every carb jetting and how it performs on the road, and I am building an individual exhaust port adapter for it to set the individual idle screws.
    Am happy to answer any questions
    best
    rt
    Image Unavailable, Please Login
     
  4. luckydynes

    luckydynes F1 Rookie

    Jan 25, 2004
    3,931
    CA and OR
    Full Name:
    pit bull
    #4 luckydynes, Oct 6, 2005
    Just bought the LM-1 with the AUX Box . . . has two axis accelerometer in it.

    I'm using the exhaust probe to see the A/F map of the stock Bosch Kjet before swapping to EFI. The sensor appears too large to fit in the factory bungs however.

    Sean
     
  5. Dave

    Dave F1 Rookie

    Apr 15, 2001
    2,722
    Little Rock
    Full Name:
    David Jones
    #5 Dave, Oct 6, 2005
    The 308 has sampling ports on each exhaust pipe.
     
  6. docweed

    docweed Formula Junior

    Dec 8, 2004
    452
    Morgantown,WV
    Full Name:
    Chuck Stewart
    #6 docweed, Oct 6, 2005
    Thanks guys. May have questions later if I get an analyzer.
     
  7. sandersja

    sandersja Formula Junior

    Jan 16, 2003
    367
    Portland OR
    Full Name:
    John Sanders
    #7 sandersja, Oct 7, 2005
    I suggest that you spend a few minutes on Google to check out all the wideband 02 sensor and data logging systems available. These are commonly used in the import tuning world - esp on boosted cars - where ECU remapping is a normal practice. The only significant install issue is to weld in a sensor bung upstream of the cat. Most datalogging systems also have external inputs for RPM, temperatures, etc.
     

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