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  1. #1
    ARNYGOLLOTT3's Avatar
    Join Date
    May 2007
    Biloxi, MS

    How do you setup for A/F ratio?

    I would like to add an a/f ratio gauge to my ski...

    As I understand it...I would have to have a 'bunge' (probably spelled incorrectly) welded into my J Pipe and then hook up the appropriate guage...does anyone know of someone that might mod my J Pipe for a fee, someone with successful experience at this? As I understand it, this is a tricky weld becasue the J Pipe is double walled...? Are there any other hardware mods to be done?

    Anything else I should know about this adventure...?

    As always I appreciate any advice and/or info...thanks ahead of thime!

  2. #2
    cbrich's Avatar
    Join Date
    Nov 2006
    Around Lake Travis
    I believe HOSS was modifying J-pipes with bungs. Then again where is HOSS, have not seen him on forum lately.

  3. #3

    Join Date
    Aug 2007
    kingston, Ont

    a/f gauge

    Is there room to move the J pipe back about two inchs if you go to the shorty waterbox?
    It would be easy to make a spacer between the manifold and J pipe and thread an O2 sensor in the spacer.
    You woul djust need one more band clamp

    Ive done it lots to retrofit automotive fuel injection on marine motors

  4. #4
    Jeepster's Avatar
    Join Date
    Jul 2007
    Quebec, Canada
    Why don'T you guys just hook it up to the OEM sensors on the exhaust...?

    I think some will work ok when hooked to oxygen sensors, or exhaust gas temp...

  5. #5

    Join Date
    Aug 2007
    kingston, Ont


    a wide band air fuel meter works of an oxygen sensor just like your car,
    The difference is in the sensor to wider range of ratios.

    These are not closed loop systems and don't have the proper sensor,.
    It needs to be added in as hot a spot as possible.
    The sensor is also heated

  6. #6
    REID2168's Avatar
    Join Date
    Jun 2007
    My House
    Brian at BTTEK1 will handle it for u he has a guy!
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