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Thread: Wiring a tach with Atomic EFI and MSD 6 Offroad box

  1. #1

    Default Wiring a tach with Atomic EFI and MSD 6 Offroad box

    Just bought the Atomic and have a wiring question that I
    couldn’t find an answer after searching the forum.





    My configuration:
    Ford 302, MSD-6 Offroad box (6470), Billet distributor (8582), and MSD
    coil (8202) and initially installing without timing control.



    As shown on page 11, Figure 10 of the Atomic instructions,
    the Atomic white wire ties to the MSD grey tach wire. My question is this: How do I wire my
    tachometer back in now that the grey wire is used to trigger the Atomic? Can I run the tach in parallel to the Atomic
    or do I use the (unused) white wire coming from the MSD-6 control box to
    trigger the Atomic?



    Thanks in advance

  2. #2
    msdtech1955 Guest

    Default Wiring a tach with Atomic EFI and MSD 6 Offroad box

    As shown on page 11, Figure 10 of the Atomic instructions, the Atomic white wire ties to the MSD grey tach wire. My question is this: How do I wire my tachometer back in now that the grey wire is used to trigger the Atomic? Can I run the tach in parallel to the Atomic or do I use the (unused) white wire coming from the MSD-6 control box to trigger the Atomic?







    yes you can run the tach and the atomic off the same tach lead.

    msdforms@msdperformance.com







    Latitude: 31.730125
    Longitude: -106.29673








  3. #3

    Default Wiring a tach with Atomic EFI and MSD 6 Offroad box

    Thanks for the reply. I wasn't sure if the tach trigger had enough current to run both.

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