I finished my H4 conversion. I used Eurolite Enclosures and PIAA Plasma Bulbs.

 

they should be wired like this

https://www.thirdgen.org/newdesign/t...s/schemat2.jpg

and read and folllow this tech article, it explains everything.... now remeber the image of the first link is for H4's the rest is for stock headlights....

https://www.thirdgen.org/newdesign/t...tupgrade.shtml

 

I did not build my own harness just plug and go ther than this. But i think it looks cool am i harming anything buy leaving it?

 

also the h4 has a different pin setup from the stock connectors... when i get home tonight ill post the pin difference unless someone gets to it b4 me... the connector is the same just the pin placement is different....

 

thanks nuclear... great job

 

So i plugged it in right? how did i get the neat after effect?

 

I would be worried about the plugs being damaged if you did not rewire the car for H4 bulbs. I made the same mistake in the past and ended up with melted plugs and damaged electrical system. Does look good though. But might be running too much wattage with all 4 on at once?? Maybe try a post in the electronics section.

 

i believe you might have wired the 3rd prongs on the highs up
you supposed to only have 2, it might be finding a thru the light itself... recheck your wiring thru the harness

thanks to JZA on the elec board for this... helps to explain alot

 

now remeber this is the BACK where the wires go in.... also what wattage are those bulbs rated at... i would use 10 gauge or at LEAST 12 and a relay.... gimme some more specs on your harness/pigtail or take some pics if you can

 

Hey, glad you were able to find the Eurolite's The infamous H4 conversion brown glow... nasty isn't it.

 

Once again I have not made any harness this is all factory wiring! I did not touch the wireing for the highs at all. All I did was change the low beams by switching the low beam and ground wires like the picture above. They bulbs I am using are 60/55 cause the Eurolite housing is rated at maximum of 60.

 

Also your diagram is different than mine. It shows to wire the high beams to the top of the plug mine shows at the side?! witch is right? n/m I wired mine right the diagram is same just one front view and one is back view.

 

Can anyone tell me what color wire does what on the stock harness? Cause if I get this info I can wire it right.

Black - ???
Red - ???
Green - ???

 

one thing with the h4 conversion
crappy GM headlight switch will not handle the extra load on hi beam
install a relay to take the pressure off of the switch

 

What relay do you use and how do you wire it in? If you are using a stock wattage bulb do you still need the relay?

 

All this info is in the tech articles.

 

How much $$ did it cost to do the conversion??

 

I fixed my highs I had it wires all wrong! The 2 lamps cost about $20 each but the bulbs were $66. I wasn't going to get cheap bulbs so I got PIAA bulbs, every review I have read people liked them. I was going to get cheap Eurolite bulbs for only 20$ but everyone said the purple film on them pealed off after use and the burnt out really fast. The PIAA bulbs also come with a 1year manufacture warranty. I bought everything at AutoToys they have free shipping for orders over $100.

 

good to hear ya got it right....

 

apparently i missed the wiring diagram when i did mine (about 2 years ago) i have 4 low beams and 4 high beams. now why would the high beams stay on after i click them off after turning them on? i have to shut the lights all the way out to shut them off.

and by the way do you like the light pattern that the eurolite housings give off? i have the same ones in my car that i got from a local shop that dealt with toucan industries.

 

To fix my problem I just removed all the pins for the low beam plug and wired it to the H4 diagram shown above. High beams are the green wires, low beams are tan, and ground is black. Those are stock colors. Yes I like the lighting the Eurolite housings put out its like a field of light instead of 2 beams.

 

87ciz you need to remove the wires from the high beams, you should only have 2 wires going to the high beams and 3 going to the LOW beams.... the top pin on the H4 for the high beam should be left out.... the only 2 that should be wired on the high are the two across from each other and they should only be wired for high beam signal. if you need anymore info were always here.

 

i like the 4 low 4 high beams it makes it look alot meaner at night as well as seeing alot better. I have the first edition of the eurolite housings. BEFORE they were diamond cut, the light pattern sucks. anyways they were talking about a relay to relieve the dimmer switch after its on highs where do i put this?

 

These are lows after fixing



Close up of Eurolite housing at night from above to eleminate glair.

 

how did you get such a calm picture? lol heres what mine came out looking like from above. and those are my low beams

 

it was takin kinda at the hood line but really close so the glair was hitting the hood.

 

by the way i did get all four low and highs to work with the two relay system and the dimmer switch works now!

and maybe yours isnt as bright becuase it doesnt come straight out it hits the reflector also mine dont have the round reflector in the middle

 

I am not sure where it needs to go maybe need to post on the electronics board. i don't use my highs much so right now I don't need it.

 

that round thing is not a reflector per se.... if you look at the bulb they all have grey at the tip... they reflect light outward...towards the side... its up to the reflectors in the housing to prohect the light outwards and lenghtwise.... ill be posting pictures soon... i got to re aim the lows, but they came out great.... hopefully ill get a better beam aim and light spread with them adjusted higher....

 

here is a comparison of the 3 Halogens, Silverstars, and PIAA H4 Bulbs.

Halogens


Silverstars


PIAA H4 Bulbs

 

the silverstars look brighter maybe it was a closer shot. either way its alot better than stock!

 

Well I brought this thread back from the dead because when I did this swap I neglected to upgrade the wiring harness. Well neglecting the harness resulted in the harness melting! This took 2 years to do it. Also I brought this up because I am not the greatest when it comes to wiring so I went out and bought Painless's H4 conversion harness and it works great! The driver side wire length is perfect the passenger side is a little on the long side but a zip tie fixed that. Here are some pictures of the harness for people that are not good at wiring. This took a total of 45min to install in the pooring rain.

This is the relays and the fuse.


This is where the painless harness connects to thefactory harness.


This is a update picture. Passenger light is out of alignment.

 

So did you do the brights also?

 

Any pics of them with the lights off? Looks good

 

I only did the lows because I felt I don’t use my highs enough to spend 100+. As far as pictures when they are off I can take some Monday. The picture doesn’t really show how bright they really are but it improved immensely. It is a lot easier to see at night.

 

hmmm would look a tad funky with out the brights but i agree you wouldnt need them.

 

all mine are done i have yet to take pictures though. maybe I'll do that today.

 

I will upgrade the highs eventually. Maybe ill just buy cheap bulbs for the highs since I don’t use them that will cut the price a lot. One thing our highs have a 2 prong connector and H4 is 3?

 

yeah unless you run all 4 highs lows you'll only use 2 pins of the H4

 

so if you use Painless's H4 conversion harness its just a couple of plugs? i have wanted to do the conversion but did not want to hack the wireing. could you give me a link or something.

 

its in the summitracing catalog under the import stuff

 

No splicing wires needed. It has a connector for your stock headlight connector but on the factory plug you have to move the wires around so they are in the H4 pattern listed above then you plug the 2 new plugs into your lights and mount the relays and fuse.

 

hey zNucleaRz do you have a part number for the Painless's H4 conversion harness thanks for the help

 

Summit racing part number PRF-30815. But it will take 2 harnesses if you replace all 4 lights. These harnesses are not cheap buy the way; they are 75 a pop. Summit has their version for a 4 headlight system for $40, but I asked the summit rep about the quality and he said id be better off with the Painless one. The summit piece is a APC knock off.

 

cool thanks