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    ozvena's Avatar
    ozvena Posts: 10, Reputation: 1
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    #1

    Jul 19, 2008, 06:55 PM
    Tachometer for Idle Speed
    Would you please recommend me a tachometer for idle speed adjustment which can go down to 420 RPM?

    Thanks!
    KISS's Avatar
    KISS Posts: 12,510, Reputation: 839
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    #2

    Jul 19, 2008, 07:54 PM
    1, 3, 4, 6, 8, 12 cylinder? Spark plug pickup? You might have to do a little math. Like you can use the 8 cylinder setting for a 4 cylinder. Just multiply by 2.
    ozvena's Avatar
    ozvena Posts: 10, Reputation: 1
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    #3

    Jul 19, 2008, 08:18 PM
    4 cylinder with a spark plug pickup would be nice. Any recommendations?
    KISS's Avatar
    KISS Posts: 12,510, Reputation: 839
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    #4

    Jul 19, 2008, 08:45 PM
    I found this one with a little searching:

    http://www.stevensinstrument.com/tachometers.htm

    Non-contact. Remember that some cars fire the spark plug on the power and exhaust stroke when they use 2 coild for 4 cylinders.
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