'75 280Z Headlight Relay Upgrade

[EuroDat]

I was more curious than anything, it seem to be negelected.

I have used diodes in the past to reduce the back emf. Don't know if they still call it that these days. I know diodes are less reliable, but I have never had one fail on me yet.

Maybe I should have said "normal" instead of "servicable" relay since most relays don't have this voltage spike limiting function.

I believe the resistor is between 600 - 800 ohm which wouln't draw much anyway.

[Captain Obvious]

Back EMF works for me as well. I've heard it called lots of different things. Whatever works! 

[TomoHawk]

If you just wanted to install a couple pigtails for the relay control now, but will be adding the relays in later, where would be a good place to put those in?

Edited July 7, 2015 by TomoHawk

[Captain Obvious]

TomoHawk, Not sure what you're asking... What do you mean with the above? I'm probably just dense, but can you ask your question a different way?

[TomoHawk]

If you wanted to add fog lamps or driving lamps, which should only come on with the headlights, you need two switched +12V lies from the headlamp switch to power some relays.  where would a good place to get the switch +12V?  You would put in one or two extra wires that would operate the relays for the extra lamps.

[ryn004]

I'm following this old thread and wonder if anyone of you ever attempted to modernize the bulky resistors in a modern car relay box as you did with the headlight relays?

 

 

[ryn004]

Location of these resistors are behind the fusible links on the right hand side of the engine bay.

[SteveJ]

Those are relays, not resistors, and they aren't that bulky compared to standard automotive relays.

[tamo3]

ryn004,

What's the purpose for? Is there any advantage?

Adding headlight relay close to battery will increase  brightness of headlight. Same to starter relay.

But, I don't see any advantage to re-wiring fuel pump, EFI relay.

[ryn004]

Because having everything in one place is more convenient and tidy like in my Impreza.

[SteveJ]

Are you talking about re-wiring your car to move those relays elsewhere?

[ryn004]

Same place just want to revamp the marked area in the photo. (Photo is for illustration purposes and not mine)