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Thread: Sonex aeroinjector setup

  1. #1

    Join Date
    Nov 2011
    Posts
    3

    Sonex aeroinjector setup

    Has anybody installed a Sonex Aeroinjector ffrom their last batch? They were backordered for several momths. Not much luck following their directions. Poor air/fuel distrubition? Left rear cylinder runs way to hot on ground run &can't get tuned for smooth throttle advance without simultaneously leaning. Jab 2200 engine. Any suggestions? Thanks. Jim.

  2. #2
    Neil's Avatar
    Join Date
    Aug 2011
    Location
    Monroe, LA
    Posts
    87
    Check for induction leeks. Slide valve injectors can be a bit fiddly. Everything must be in good order for them to work well.

  3. #3

    Join Date
    Apr 2012
    Posts
    1
    Have you tried a leaner needle?

  4. #4

    Join Date
    Nov 2011
    Posts
    3

    Happy Aeroinjector set up

    Thanks for the ideas. I ded the soap bubble check for induction leaks, none. I tried all 4needles, 1, 2,21/2,&3. None give satisfactory results. All are machined very poorly. Lumps on tapered end &notch will not let set screw clear housing!!! China??? Next step is to try various deflectors over the inlet throat to redistribute air/fuel. Worked for some. The induction manifold has a vertical bar in it.

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