4 Hi Headlight Mod

Static 90 · Dec 31, 2010

I built my own with a relay and a relay socket. That way if my relay goes out, I can just unplug it and plug a new one in, without worrying about if the wires are on the right terminal.

Kable · Dec 31, 2010

thats what i did as well. But with a custom built one you can upgrade the wires for your hids and do the hi4 upgrade all at once. With "aftermarket" hid harnesses you still would have to either A) know to wire or B) buy the hi4 kit which isnt cheap

Static 90 · Dec 31, 2010

I did the 4-hi mod last year. I did my low beam HIDs in Nov and my high beam HIDs Wed. I did the harnesses for the headlights Wed as well.

borahshadow · Jan 15, 2011

Kable said:
I built my own "hi four" kit. If your running hi and low beam hids its easy to burn up the stock wires. I bought the heavy duty bulb sockets and built a relay box to pull power right from the battery as hids should.

You must be registered for see images

You must be registered for see images

Top two large posts are for positive and negative from the battery.
Two smaller top posts are hi and low beam signal wires
the posts on the side are for hi beam output and the other side low beam output.
I ran all new wires from each headlight directly to the side posts.
Also ran all four grounds to the top negative post on the relay box.
Installed a diode across the hi to the low beam relay to keep the low beam signal wire from kicking on the hi-beams during low beam use.
I still need to mount the fuse on the bottom but this set up is killer compared to the stock set up. Very easy to build

that looks really well done. What kind of plastic box is that? it looks like one of those waterproof electrical boxes for household wiring but I could be wrong.

Kable · Jan 15, 2011

thats exactly what it is lol

borahshadow · Jan 28, 2011

I did this last night and I love it. I was going to upgrade the whole circuit like Kable did but since I don't have HIDs the benefit would be minimal... I'd get some extra lumens since I'd have less voltage drop. I'm super **** about making things look stock and be very reliable, so it would take me a long time to rewire the headlights since it took me over 3 hours to wire up some driving lights on the rear bumper as backup lights... I think my work looks stock though.

I also did it over by the factory fuse box. The headlight wires are right there in that big split loom tube and you can hide relays under the EMC.

You must be registered for see images attach

The left one is for my backup lights and the right one is for my Hi 4.

oh and I never crimp anything. With an automotive environment full of vibrations, moisture, hot, and cold I just don't think a crimp is reliable enough. I solder everything and I would recommend others do too.

Kable · Jan 28, 2011

there is alot of engineering that goes into crimp fittings. I use the expensive ones that crimp, then heat shrink then you place your solder gun in the middle and it melts a big bead of solder onto your wires. I also use connector grease on all my wires then head shrink them. Alot of people dont use the right crimper.

A few weeks ago when i was wiring up some things a buddy brought this up and i took some 10guage wire soldered in the middle and told him to pull it apart, came apart with some effort, crimped the same wires and he couldnt pull them apart at all. Try it out sometime Both have their ups and downs

borahshadow · Jan 28, 2011

Kable said:
there is alot of engineering that goes into crimp fittings. I use the expensive ones that crimp, then heat shrink then you place your solder gun in the middle and it melts a big bead of solder onto your wires. I also use connector grease on all my wires then head shrink them.

I think the key there is that you use fancy connections (which you said eventually solder the wire) and you do it properly. The grease and heat shrink are well above average too.

I should have been more specific. I don't like the crimps that seem to be way to common... those little metal tubes with hard plastic crap covering them. For a splice I wouldn't use one at all... I use them for things like quick connects but I pull the plastic crap off of them and then solder after it's crimped. I always follow any joint with heat shrink.

I might just have to try pulling apart one of my soldered joints. I seriously doubt I would be able to. The way I wrap the wires it would be slightly difficult to pull them apart before they are soldered.

The system you use sounds like a great system and if I wasn't so cheap I might use it too. I like soldering because compared to the cheap crimps it is 100x better and it's just as cheap or cheaper. The downside is that it takes me a little longer. Your system sounds like a quick and effective way to achieve the same (or probably better) result just at a much higher cost.

jeff's88silverado · Jan 28, 2011

If this has already been answered sorry to re ask. But does doing the 4 hi mod take all the load strain the stock harness headlight and dimmer switch would normally be under

jshawag12 · Jan 28, 2011

if it hasnt been mentioned mrtaillight.com has a kit for 14.99

4 Hi Headlight Mod

Static 90

OBS Enthusiast

Kable

I'm Awesome

Static 90

OBS Enthusiast

borahshadow

I'm Awesome

Kable

I'm Awesome

borahshadow

I'm Awesome

Kable

I'm Awesome

borahshadow

I'm Awesome

jeff's88silverado

I'm Awesome

jshawag12

OBS Enthusiast

Similar threads

Latest posts

Staff online

Members online

Forum statistics

Share this page