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  •  » FYI Ford, Classic Mustang Tech Discussion
  •  » What coil?

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    6/24/2021 3:28 PM  #1

    HudginJ3
    Senior 24-7 FYI Addict

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    From: Cedar Hill, TX
    Registered: 4/29/2015
    Posts: 1,218

    What coil?

    I have a dura Spark system inMy car and it cuts outs out at around 3000 rpm. I have replaced wires and plus to no avail and have now bought a new coil. So I measured the two on the bench.  The one removed reads 1.1/200 between the + and - posts and 6.99/20 between the center and the +post. The new one reads 1.6/200 and 9.29/20 Which one is the good one? I have no idea what they should read.

    70, ragtop 351W/416 stroker Edel Performer heads w pro flow 4, Comp roller 35-421-8. T5
     

    6/24/2021 4:16 PM  #2

    Nos681
    Senior 24-7 FYI Addict

    Offline

    From: Atlantic Mine, Michigan
    Registered: 7/14/2016
    Posts: 3,046

    Re: What coil?

    Are you using the horseshoe coil  connector with the buttons on top of coils?

     

    6/24/2021 4:55 PM  #3

    HudginJ3
    Senior 24-7 FYI Addict

    Offline

    From: Cedar Hill, TX
    Registered: 4/29/2015
    Posts: 1,218

    Re: What coil?

    Yes, The Painless harness for it.

    70, ragtop 351W/416 stroker Edel Performer heads w pro flow 4, Comp roller 35-421-8. T5
       •Thread Starter
     

    6/25/2021 5:59 AM  #4

    TKOPerformance
    Hyper FYIFORD ADDICT

    Offline

    From: Newark, DE
    Registered: 12/15/2014
    Posts: 7,068

    Re: What coil?

    Probably not the coil.  We had this issue on modified 5.0s.  It was the module on the distributor.  A better module with more dwell solved the issue.  The factory one just didn't saturate the coil long enough to create a hot enough spark to reliably light the mixture. 

     

    6/25/2021 7:05 AM  #5

    Nos681
    Senior 24-7 FYI Addict

    Offline

    From: Atlantic Mine, Michigan
    Registered: 7/14/2016
    Posts: 3,046

    Re: What coil?

    Duraspark TKO.

    Not TFI.

     

     

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