_Kansei_

I've never actually replaced my high beam bulbs but that sounds about right. 91k miles on stock bulbs ftw! stock fog bulbs too (well not in the one that got crushed in the accident)

the way my mind sees the headlight wiring, there would be a ground, low beam, and high beam wire in your h4 harness. so remove the high beam wire ,move it over to a 9005 plug, then give it a ground. from the looks of your diagram you'd be putting the low and high beam power wires to the high beam socket, and in doing so the only way for the high beam to ground would be through the low beam power wire.. meaning the low beams would need to be off for it to work.

You have daytime running lights still, correct? P5 DRL suck a lot, it uses the lowbeam bulbs and looks nasty. If you could mod the DRL wiring to use the high beam (at low voltage like it does for the low beam currently) it would look way nicer IMO

J-Protege

So, rather than splitting the 12v general to each, split the ground, right?

Then each would have a ground, the H4 would have the full 12v (for it's low beam use), and the 9005 would have the full high beam wire.

Yeah, that makes more sense, thanks Chris.

As for DRL, that comes from a low volt relay on the 12v general wire. It comes on with the car's power normally. The rest of the lights are manually controlled.
I don't know where the relay is, but it would have to be cut out, and moved over to the high beam 12v wire. Worth looking into, but may be a pita.

JoshP5

Here's the wiring diagram for the headlight conversion.

FWIW, J, your wiring diagram is cuter.

EDIT: I just noticed you have your new low beam indicated as H4. That won't work in the P5 housing--if you somehow are able to get it in there, beam focus will suck completely. You'll need H7s.

Also, HIR 9011s fit in our 9005 slots without modification and are noticeably brighter and better focused. They really get the attention of nighttime left-lane slowpokes.

_Kansei_

^^ the white plug on the p5 harness is still an H4 plug so that part of his diagram is correct. he just needs H7 bulbs and the black adapter pieces (~7USD a piece) to adapt the H4 socket to fit an H7.

JoshP5

Oops, somehow I thought those were bulbs, not plugs. My bad.

J-Protege

About that, if I just use the H4 bulb in the H4 socket, without the H7 converter, won't it still work? The low beam part of the H4 is enough to light up the sedan housing.

Also, theres conflicting info on wiring... What I was thinking before, was that the ground needs to be split, and each bulb grounded. Then have low beam power go to the low, high beam power wire to the high beam.

The pic you posted looks like the low beam 12v is split to each bulb, and only the low is grounded. Is that right?

_Kansei_

no that won't work at all (h4 in the protege5 housing). the reflector design is for an H7 bulb, the hole in the back of the headlight is for a small h7 bulb, etc.

J-Protege

Damn, these H4s still have almost 9 years of warranty on them

_Kansei_

is the warranty transferable? sell them :P

Hyperion

Drove to Austin and back this weekend, passed my most favorite road but avoided it to save money lol...I accidentally wore out a set of tires last summer, I didnt leave any rubber but I wore the inside edges out from the turns (doh), working there 4 days a week was waaay too much fun.

Shasta

Booked my car back into the shop for more alarm mods. Getting a dual zone perimeter alert . Drop the car off this Saturday.

Liquid_Ag

so. i had an idea. i like the oem endlink quietness, but the p5 links are to long. but awr clunk. they clunk because of the heim joints, so why not cut the tops off of the stock ones, thread them, and then use those?

JoshP5

We have a winner!

What endlinks are you using now?

KrayzieFox

The perimeter alert accessory is really not all that great. I have the DEI 508D installed and it's a pain in the ***. It goes off a lot when you don't need it to, and you have to constantly adjust it. A slight change in temperature and the fields are ALL screwed up. Then it beeps when it rains, when someone gets even remotely close to your car .. and really beeps for all the wrong reasons. After a while you just start to ignore it and it completely defeats the purpose of having it.

aMaff

you're the car I love rolling past in the parking deck in the miata.

*chirp**chirp**chirp*
O RLY?
VROOOOOOOOM!
WEEEEEOOOOOOOOWWWWEEEEEOOOOOOOOOOWWWWEEEEEEEOOOOOO !