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  •  » FYI Ford, Classic Mustang Tech Discussion
  •  » Finished Adding the Headlight Relays

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    1/04/2023 6:16 AM  #1

    TremendousWand
    I FYI 24-7

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    Registered: 5/16/2013
    Posts: 657

    Finished Adding the Headlight Relays

    1966 Mustang Couop 5.0 w/ HO Swap, EFI, T5z

    https://ibb.co/2FGsXNN
    https://ibb.co/NmKtZ5j
    https://ibb.co/yFJR19p
    https://ibb.co/PG5bvt2
    https://ibb.co/VtCC316
    https://ibb.co/Cv0jXPM
    https://ibb.co/FWh07RP

    Installed the relays on the right side along with doing some wiring cleanup.  I bought a junction box from amazon to put all the connections in one place.  I think it turned out pretty clean.

    The lights are brighter but not THAT much brighter.  I drove around for an hour with the high beams on and no flickering now either so I didn't bother replacing the light switch.
    https://ibb.co/JxrsPZg

     

    1/04/2023 7:04 AM  #2

    TKOPerformance
    Hyper FYIFORD ADDICT

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    From: Newark, DE
    Registered: 12/15/2014
    Posts: 7,490

    Re: Finished Adding the Headlight Relays

    Probably nothing wrong with the switch; you were just tripping the internal breaker and it was doing what it was supposed to do. 

    This won't effect the brightness.  If you want brighter you need to switch bulbs, but now you should be able to run any bulb you want without worrying about the wiring. 
     

     

    1/04/2023 1:59 PM  #3

    TremendousWand
    I FYI 24-7

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    Registered: 5/16/2013
    Posts: 657

    Re: Finished Adding the Headlight Relays

    There is a slight measure of voltage drop all the way to the lights.  I didn't believe that was an issue after reading about it on other forums.  I took before and after and sure enough the lights did appear brighter.  Also, the original headlight wiring was 16 gauge (I think) and I changed it to 12 gauge. I think in reality they aren't brighter, but rather the way they are supposed to be.  

       •Thread Starter
     

    1/04/2023 3:10 PM  #4

    TKOPerformance
    Hyper FYIFORD ADDICT

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    From: Newark, DE
    Registered: 12/15/2014
    Posts: 7,490

    Re: Finished Adding the Headlight Relays

    Old wiring typically has higher resistance.  Might be the reason. 

     

     

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