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I've been searching the forums about adding relays to your headlights, but haven't found enough information to be satisfied. Right now, with my lights on low, the volts at the lights are about 1v lower than the battery. On high, the lights are about 1.5 volt lower. So say at 1000 rpm (idle is lower volts) when I have 13.8v, the lights get 12.8 and 12.3v. Is this too low? Would adding relays to get that lost volt be noticable in terms of brightness? I have replacement halogens, and wiring is no problem, I can do it, if it's worth the effort. Judging by the little information i could find, others with dim lights had lower volts at their lights, like 10.5, so I think maybe mine are working pretty good? Thanks!

chris
 

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Unfortunately, I never measured the voltage at my lights before switching to relays...

Mine weren't too dim, but I wanted two things:

1) increase the brightness (increased voltage)

2) eventually run brighter lights (higher wattage), and not have to run all that current throught the dash switch. I use to run these on another Chevelle (without relays) and after a few minutes on high, they would start to flicker... I was told this was something to do with the wires getting hot, etc (didn't really make sense, but what do I know)...

The switch to the halogens and the relays made a big difference in my case...

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"Once you go RAT, you never go back..."
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Tony
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Gee Chris, great minds must think alike as I don't like the lights on my 69 and they are Halogen. I'm thinking about upgrading the alternator but the relay deal was on the table. It would be an easy task, maybe use a Bosch relay to power both the high and low beams. I have the tools to correctly aim the headlights if that's a problem.

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Never be afraid to try something new.
An amatuer built the Ark,
Professionals built the Titanic.
Team Chevelle Gold #33
ACES Member #02913
 

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Gentlemen, If you can dig up a Car Craft Mag dated August 2000 page 76-77 go over how to upgrade your headlight wiring ?light brightness.
Sorry no scanner and my typing would take weeks

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Philip Mullaly
72 TPI El Camino
You can never fix a Ford,You can only work on them alot.
70 442
The Z-meano
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Thanks Philip, think I have that one in "stock"!

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Never be afraid to try something new.
An amatuer built the Ark,
Professionals built the Titanic.
Team Chevelle Gold #33
ACES Member #02913
 

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Be there, done that...It works great.

Wire your headlights with a bosch type relay, one for the high one for the low.

1. Get power from a good source like the horn relay or battery >to the relay.

2. Use a good ground >to the relay.

3. Use your original wire at your headlight to throw the relay.

Mad Enterprises or Painless wiring has kits and schematics for this.

I followed the car craft article for mine, they ran it several times in the late 90's


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Rob Mirabile TC #1079, ACES #4387
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