i would like to wire 2 low beam headlights to my relay. could someone help with a diagram?? Frank :Handshake
Would seem to me that you would need a total of 4 relays (since you are running each light on it's own separate relay if I remember right), then just use the factory wires to the headlights to trigger the relays. Unless I am misunderstanding what you are trying to do.
85 to Ground 30 to + Battery 86 to switched power in (relay trigger) 87 is power out relay activated 87B is power out without relay activated 2 relays required one for high beam and one for low
...this way i will have to...pigtail the 2 L/H headlights off 87 on each relay? thanks Allen :Handshake
Both low beams will connect to 87 on one relay and both high beams to 87 on the second relay. The relays will be energized by one of the factory headlight connections. You dimmer switch will function as normal. Check out part number 30815 on www.painlessperformance.com
blugene; The relays deliver a full 12v to the bulbs. Makes for brighter headlights, and less load on the alternator.
That is how I hooked up Anna's foglights. Hooked them right into the running lights so they are always on when the headlights or running lights are on. Didn't use the 87B, just ran both off the 87.
Hmmm... gotta be a more logical reason. For the last 30 (or so) years I understood that the voltage comes from the battery and the alt charges the battery. Less load on the switch maybe?
Just for the record I simply upgraded my headlights to Sylvania Halogen and They are Plenty bright enough for me...Wireing harness undisturbed...No problems.
i just noticed i have 2 diff. relays.. all have... 87 & 87a... 2 of them have ...87 & 87a... hot in the...on position..( /87 87a) 5 of them the 87...is hot...87a...is dead in the...on position..(87/87a) the drawing on the side is ...diff. on the first 2... ......
Same here... my car is a daily driver, and I have General Electric Halogen's in my car. They are more then bright enough. Have had people flash their high beams at me on 2 lane roads thinking I had my high beams on or something. On my '73 I plan to do something similar to what Dennis did, cut a small portion off the back of the glass bulb, and run the super white halogen bulbs in them. Have those in my dad's Mustang, and they are great. If I were going to run relays, I would do it like Allen says. I was just thinking you wanted each light on it's own relay or something.
That's correct. The battery/alternator will always see the load, they supply all of the power. With the relays you don't get the voltage drop you would have through the in-car wiring and switch. That also means the headlight switch's integral circuit breakers don't protect the high current wiring anymore so you need to add breakers or fuses between the relays and the battery.
