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-   -   Headlight wiring question (http://986forum.com/forums/performance-technical-chat/76427-headlight-wiring-question.html)

geraintthomas 10-15-2019 03:27 PM

Headlight wiring question
 
Hi all,

Would anyone have any idea on how to enable the headlight bulbs to turn on when you switch/flash the main beams?

The reason is that I've sprayed the insides of the headlamps black as they have projectors. Trouble is, the main beams aren't bright due to having no reflectors. The projectors have a bi-xenon operation which throws the xenon light upwards when you flash someone... but only if the headlights are on. If you flash someone when they're off, they don't turn on - nothing happens.

Is there a way of having the headlight bulbs to operate with the main beams?

I'm hoping it's a case of jumping the wires from the main beams to the headlights along with a diode to not allow the headlights to turn on the mainbeams? If so, what diode should I get?

Cheers!

geraintthomas 10-15-2019 03:43 PM

Like this:

https://i.imgur.com/31fGJjEl.png

Or is it safer/easier to use some relays to tell the dipped beams to turn on when the main beams have current?

itsnotanova 10-16-2019 03:36 AM

I can't answer your question, but I'd love to see your headlights. I've always wanted to black mine out too

geraintthomas 10-16-2019 04:34 AM

https://i.imgur.com/AXljA2Sl.jpg

https://i.imgur.com/jedk7sml.jpg

https://i.imgur.com/MxXeVsAl.jpg

https://i.imgur.com/aI3clXSl.jpg

itsnotanova 10-16-2019 11:52 PM

I like it!

geraintthomas 10-17-2019 11:45 AM

Anyone have any ideas?

particlewave 10-17-2019 12:36 PM

So, you’re looking to flash with headlights off and the stock halogen bulbs aren’t bright enough now that you've painted your reflectors black?

Switch them out for an LED bulb that throws a lot of light forward and use them as your flashers.

Electrically, it’s a simple relay activated by the main beam power that switches between the bi-xenon high beam solenoid and the “stock” bulb.

geraintthomas 10-17-2019 12:38 PM

Quote:

Originally Posted by particlewave (Post 605277)
So, you’re looking to flash with headlights off and the stock halogen bulbs aren’t bright enough now that you've painted your reflectors black?

Switch them out for an LED bulb that throws a lot of light forward and use them as your flashers.

Electrically, it’s a simple relay activated by the main beam power that switches between the bi-xenon high beam solenoid and the “stock” bulb.

Tried the LED's, they're not enough unfortunately! Good thinking.

I've got a load of relays spare but I couldn't get my head around the wiring for them.

How's tricks? It's been a while.

geraintthomas 11-21-2019 02:54 PM

Quote:

Originally Posted by particlewave (Post 605277)
Electrically, it’s a simple relay activated by the main beam power that switches between the bi-xenon high beam solenoid and the “stock” bulb.


Any chance you could very quickly mock up the wiring I'd need for this? Looking to do it soon.


Really appreciate it.


Unless a simple diode would work? Could anyone just confirm it would without melting wires?

particlewave 11-22-2019 03:40 AM

I think I was a bit confused...

Do you want to flash the HID bulbs with the stalk when the headlight switch is off?
You can’t flash HIDs. That’s why you must keep the original high beam bulb.

You could use the fog lights as flash bulbs or add LED DRLs.
A diode also won’t work.

geraintthomas 11-22-2019 04:24 AM

Quote:

Originally Posted by particlewave (Post 607165)
I think I was a bit confused...

Do you want to flash the HID bulbs with the stalk when the headlight switch is off?
You can’t flash HIDs. That’s why you must keep the original high beam bulb.

You could use the fog lights as flash bulbs or add LED DRLs.
A diode also won’t work.

Was going to switch to LED lights so that I could. How come the diode wouldn't work? Is there any other way to do this? The other option is to split the headlight and paint the reflector back to a reflective material.

particlewave 11-22-2019 11:35 AM

............

geraintthomas 11-23-2019 01:03 PM

Quote:

Originally Posted by particlewave (Post 607190)
............


Ummmm....?

particlewave 11-23-2019 06:26 PM

..........
http://986forum.com/forums/uploads02/gt1574565997.jpg

PaulE 11-24-2019 07:45 AM

Quote:

Originally Posted by particlewave (Post 607257)

Is this the relay wiring to flash the original high beam bulb that you put in the bi-xenon projectors you used to assemble? I'm going to try and build a set with some old craigslist headlights I picked up, now that I have successfully opened one of mine up to re-glue the projector lens into the shrould and re-sealed it. Thanks in advance!

particlewave 11-24-2019 08:53 AM

Quote:

Originally Posted by PaulE (Post 607269)
Is this the relay wiring to flash the original high beam bulb that you put in the bi-xenon projectors you used to assemble? I'm going to try and build a set with some old craigslist headlights I picked up, now that I have successfully opened one of mine up to re-glue the projector lens into the shrould and re-sealed it. Thanks in advance!

No, Ger wants to use his low beams as flashers with the headlights off.

Yours is a bit different and simpler. I’ll get your diagram to you. ;)

particlewave 11-24-2019 09:44 AM

Quote:

Originally Posted by PaulE (Post 607269)
Is this the relay wiring to flash the original high beam bulb that you put in the bi-xenon projectors you used to assemble? I'm going to try and build a set with some old craigslist headlights I picked up, now that I have successfully opened one of mine up to re-glue the projector lens into the shrould and re-sealed it. Thanks in advance!


This is yours, Paul.

http://986forum.com/forums/uploads02...1574621053.jpg

PaulE 11-24-2019 05:03 PM

Thanks Particlewave!
Quote:

Originally Posted by particlewave (Post 607280)



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