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Thread: Early Tach Conversion to CDI/3 pin ignition

  1. 06-09-2022, 06:24 PM #1
    50/50
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    Early Tach Conversion to CDI/3 pin ignition

    Any recommendations on converting an early points type Tach and SWB to a 3 pin CDI style?
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  2. 06-10-2022, 06:44 AM #2
    Jerry L
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    Have you checked with Bob Ashlock (here in the forum) he has a very small unit TacAdapt that fixes / allows many uses of different Tac issues on the pick up. He also rebuilds the CDI boxes. Do a search here, I would start with him.

    Best Regards

    EDIT: Link to Bob's web site & the tacadapt

    https://ashlocktech.com/tach-adapt-1
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  3. 06-11-2022, 01:11 PM #3
    garycox
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    I have a 3 pin CDI in my SWB car, tach works fine but only when connected to the points signal.

    Gary Cox
    Baton Rouge, Louisiana USA

    1958 356A Speedster, Silver/Black
    1967 912, Aga Blue/Black
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  4. 06-12-2022, 02:43 AM #4
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    Gents:
    Thanks for the tips.
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  5. 03-20-2024, 04:31 PM #5
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    Got it: ashlocktech.com

    Thanks all
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  6. 03-27-2024, 06:28 PM #6
    eaton
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    I found this thread incredibly helpful when I was doing the same.


    https://www.early911sregistry.org/fo...DI-wiring-help
    '66 912 with a 2.2
    '62 Lotus Seven S2
    '66 Lotus Elan
    '63 Karmann Ghia convertible
    '76 Alfa Spider
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