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Thread: LPG Carb options.

  1. #16
    Toymods member no 341 Domestic Engineer amichie's Avatar
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    Default Re: LPG Carb options.

    Dave.

    When I ran my car on the dyno earlier this year it ran lean on LPG above about 4500rpm.

    I tested it today by watching the output from my narrow band O2 sensor and it still runs lean above about 4500rpm. I then clamped the balance pipe and vented the converter end to increase the LPG vapour supply pressure. It started to run rich instantly but still ran OK. Bit of a rough idle. So giving it a blast it still ran lean at about 4500rpm. I am thinking this when I hit the flow capacity limit of the JB converter.

    Any thoughts.

    With my narrow band

  2. #17
    Junior Member Automotive Encyclopaedia
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    Default Re: LPG Carb options.

    , Balance lines dont do much on non boosted applications. Clamping the line locks the convertor in 1 position tho and if you drop the load it will richen up.
    We allways used to fit them but not so much on the impco stuff now.

  3. #18
    Toymods member no 341 Domestic Engineer amichie's Avatar
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    Default Re: LPG Carb options.

    Can someone please +rep cambelt1 for his help.

    Helpful informed advice without serious attitude.

    I can't do it because I have done it before. Must be on another thread.

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