How's it going yotatech..well as usual, I can't stop with the mods. and like most of us on here I am addicted . This time the culprit is the 4crawler Headlamp wiring harness upgrade. Are there any 3rd gens running this harness? if you are, can you please chime in and give us some info on how the harness performs. With reference to Rogers site, The harness should emit an 80% increase of light output over stock. So if there are any 3rd gens with this mod please let us know how you like it and if there is a jurastic improvement over stock, how hard/easy was the istallation and everything inbetween. TIA

 

Searching turned up a couple of people that like it...And add me to the list. I went with a similar (but more complex) harness a couple of years ago and loved the difference. I've since rewired the harness to match Roger's and have everything gvood to say about it.

The install is PAINFULLY easy (almost as easy as searching was to turn up the above threads! ). Unplug the stock harness from your lights, plug in the new one, add a lead straight to the battery and one more to ground.

(ref: http://www.4crawler.com/4x4/CheapTri...#WiringHarness)

 

You can nearly answer your own question by doing the simple headlight voltage check at the back of the headlight connector when the lights are on. With the voltage at the connector and knowing the voltage across the battery, you can find out ahead of time how much room for improvement you have using the graph on the web page:



If you are already close to maximum voltage, then the harness will not improve things much, at least right now. Over time as the factory wiring degrades, the improvement you'll see will increase. Seems most folks either see their stock lights within 1/2 volt of the battery (decent) or 2 - 2.5 volts less (bad).

More info:
http://www.4crawler.com/4x4/CheapTri...l#Installation

 

There are several threads on the headlight harness upgrade and I have a question for Roger. I figured this thread was as good as any. I am clueless to wiring, so this is my question:

I recently purchased your harness and it is recommened I add a fuse to the wires. Do I have to cut and splice to add two 20 amp fuses or is there something I can buy somewhere to just plug in to avoid the cutting? I can easily cut and splice, but just wanted to make sure there wasn't an alternative.

 

read this one too

https://www.yotatech.com/forums/show...ght=rb+harness

Do you have to fuse it? I have not yet, and I definately do not want my vehicle to burst into flames.

 

The harness comes w/ built in fusible links (under the black heat shrink). It is fine to run as-is, or you can replce those w/ in-line or other fuses. I used a fuse block for mine w/ a single fuse for both lights:

http://www.4crawler.com/4x4/CheapTri...l#Installation



Advantage of fuses are easier replacement if they blow. Advantage of the fusible link is ease of installation.

 

awesome, thats good to know! I thought i read somewhre that the harness had a fuse.

 

The harness I got from Roger suggests putting in a fuse. You wont burst into flames there is a fusuble link in the harness. The reason for the fuse is to make it easier to replace if you are out and about. If the link burns in to you are without light till you get a new link. I think you could always switch back to the stock wiring harness though to get you back and get a new fusible link. 2 cents worth..

I still think it is the best mod I have done!!!!!! Let there be light and man is there ALOT of light.

 

A fusible link is a fuse, but is is not as easy to replace if is blows out, since you would have to cut it out and splice in a new one to replace it.

 

Ah, OK. That clears up everything. I saw the fusbible link on the wires, but it didn't register in my head. Like I said, I'm kinda clueless to wiring.

So, I plan to hook it up when I get home this evening. I can always do the fuses later, or like stated above, I can revert back to the regular wires if I am in a pinch.

 

did you measure the voltage across the bulbs before ordering? what are you numbers?

 

maybe LED bulbs?????

http://www.superbrightleds.com/cgi-...cgi?product=CAR

 

Yeah, I bought a cheapo multimeter and if I remember right there was almost a 2 volt difference at the light source compared to the battery.

I'm going to hook it up tonight and see what happens.

 

This will be my next mod, I checked the voltage at my headlights this past week, 12.8 at battery, 11.2 at headlight! Plus with this harness, you can run 55/100 without frying anything

 

i hope yall saw the product review of this...