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Guest Message by DevFuse

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headlight upgrade

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2 replies to this topic

#1 Gloyale


    It's a sickness

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  • Corvallis, OR PNW

Posted 02 February 2013 - 05:12 PM

My old 86 GL headlights are getting kinda yellowish, dim. Checked the volts at the headlights....11.3 hmm. (my battery is at 14.2 engine running)

So I decided I needed more lvoltage to them, and actually had time to make up this relay circuit for my headlights.

2 relays supply the positive voltage (one per side)
And the other 2 each control Grounding for either high or low. This ties the bulbs together downstream of the load, mimicing the stock grounding through the column switch. This retains the "backfeed backup" where if one bulbs relay or fuse blows, it will still glow dimly, keeping you technically with 2 headlights.

I figured this would get me ready to install some brighter bulbs in the future, without overloading the almost 30 year old wiring.

Anyhow..here it is.
Posted Image
Posted Image
Posted Image

The before:
Posted Image

And the After:
Posted Image

A bit hard to see the difference, but you can tell by the extra glare in the photo there is a difference.

The night I installed them, I went to the city (Portland) for a show, and a few people flashed brights at me. I flashed mine back to show them I was on low beam already (yes, they are properly adjusted) So, I guess it worked. Now I know what those obnoxious Audi drivers feel like.

#2 l75eya


    Almost has it all figured out

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Posted 02 February 2013 - 07:04 PM

Looks good! Can definitely spot the difference in the amount of light being reflected off the bumper.

Looks like they should be providing pretty awesome visibility now.

#3 Loyale 2.7 Turbo

Loyale 2.7 Turbo

    The Mighty "BumbleBeast"

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  • Roatán, Honduras.

Posted 02 February 2013 - 07:19 PM

Good Job!

Maybe this info could be Helpful:
~► http://www.ultimates...ead.php?t=90403

Kind Regards.

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