Ok so I replaced the headlight pigtrails as well as added the relays and it was a HUGE difference. I can now see everything on the road in front of me so i wont hit some big dip and be surprised or anything like that

The only thing that it didnt fix was my headlights still fluctuate at idle ever so slightly.

Does anybody know why this still occurs I thought the relays were suppose to fix that? I already have a brand new solid state electronic voltage regulator in their which helped the situation a lot but it still does it a bit.

Any ideas?

 

That may be caused by the alternator's lower output at idle. Also, If your car has a performance cam, this can be exagerated from what I have seen.

 

the cam part makes sense because my engine flucuates big time at idle but i would hope the voltage reg would keep up :/

 

+1 on the alternator

I changed out my 65amp alternator for a 100amp unit. I am also running an electric fan and aftermarket driving lights so the upgrade on the alternator was a must-do for me.

 

I am running a 1 wire 100 amp alternator too. Mine don't seem to fluctuate at idle and my car has a cam but its not a real aggressive one. What alternator are you currently using?

 

i am running a 100 amp old style alternator. old style being it uses the voltage regulator. had to upgrade the alt when i upgraded my speakers amp. i also have a fused power cable going from my batt directly to the alt and grounds from body to block and batt to block. headlight grounds are also fresh i did them when installing the relays

 

You can have a perfect regulator but at idle, that specific alternator might struggle to produce the amperage necessary to drive all of the lights. This would lead to a slight dimming.

 

Agreed

 

what exactly is the relays function then if it doesnt give an even constant voltage to the lights?

 

The headlight switch does not work well with higher currents and sometimes the circuit breaker inside of it trips causing the lights to go out.
With relays, the switch pulls in the relays and the contacts inside the relay to pass the high currents. You also do not have a volatge drop from the light switch because of its internal resistance