1st Generation Specific (1979-1985) 1979-1985 Discussion including performance modifications and technical support sections

Black Dragon Headlight Relay kit

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Old 04-13-10, 07:02 PM
  #26  
Stu-Tron Get Yo Groove On

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Originally Posted by Sgt Fox
Your relay is wired wrong. You will need two relays, one for low and one for high.

First relay:
85: Stock low beam wire, R/Y
86: Ground
30: Fused 12VDC from battery
87: To low beam terminal on bulbs
87a: No connnection

Second relay:
85: Stock high beam wire, R/L
86: Ground
30: Fused 12VDC from battery
87: To high beam terminal on bulbs
87a: No connection
You wouldn't use 1 relay for 2 headlights? I was assuming 87 and 87a were on
the same circuit, just that there would be power to 2 of the male connects than the usual one.
I thought I labeled them well enough to show that one relay would be used for either high's or
low beam.



I have it wired as where you use one 87 as one headlight and the other 87 for
the other light.
Old 04-13-10, 08:11 PM
  #27  
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87 is normally open contact while 87A is normally closed.

You want to use one relay for low beams and one relay for high beams.
Old 04-13-10, 08:20 PM
  #28  
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So one relay for low, and one for high PER headlight??
Old 04-13-10, 08:38 PM
  #29  
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No, two relays all together, one for both lows and one for both highs.
Old 06-24-10, 07:38 AM
  #30  
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I'm having a problem with my FD's headlights, and I'm "fixing" possible problems one at a time. Did they have this kit for the FD? Thanks!
Old 06-24-10, 02:17 PM
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Originally Posted by MADDSLOW
I'm having a problem with my FD's headlights, and I'm "fixing" possible problems one at a time. Did they have this kit for the FD? Thanks!
The harness from Black Dragon will work with any H4 headlights, so if your headlights are H4's they'll plug right in.

However, making your own harness is a piece of cake, I did it on my old '80 VW Pickup, cost me about $15 and took me all of an hour to build. Google around for "headlight relay harness"
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