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Old 01-11-2020, 09:09   #1
Rampant
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Evo 6 headlight brightness fix???

As we all know, the headlights on a 4/5/6 are woefully dim compared to modern standards.

I've tried several different standard halogen bulbs such as Philips Night Vision and PIAA Hyper, and although these were slightly better than the average bulb, they still don't illuminate the road very well at night.

I've seen several different people write that the 20 year old thin jap wiring and connectors may be degraded and causing some electrical resistance in the circuit and possibly not able to deliver the full power required to run the bulbs... which seems plausible...

...so I'm wondering if a new wiring harness may bring an improvement to the illumination that the old lamps can deliver.

I've seen this style for not much money - and they don't need to replace the original wiring. They use the original car loom just to deliver the small current draw to activate a new relay loop. It's this new relay loop that then draws power straight from the 12V vehicle power supply and delivers it to the new bulb socket.

https://www.amazon.co.uk/dp/B0838YVY...xpY2s9dHJ1ZQ==


What are people's thoughts on this?

I'll probably invest in a harness myself anyway, just interested if anyone has done this before or if it seems like a good idea?

Yours Aye

Mark H
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Old 01-11-2020, 09:35   #2
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Old 01-11-2020, 10:20   #3
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Had the same problem with my 94 Pajero
I fitted some Philips racing vision and they give plenty of light.
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Old 01-11-2020, 10:28   #4
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A simple test will be to unplug the lights from the bulb on 1 side, run new wires direct from the battery to that side, leave the other on the loom, then try both beams at night. Its not difficult to rewire via a relay if it does help. Just be aware, the wiring to the plug is not what you would assume, there are 3 wires, 1 thick is a permanent Live (when lights are on), the 2 thin wires alternate between +ve and -ve as you alternate between dip and main beams, whichever is -ve completing the circuit and giving that beam

100w H4 bulbs are a good improvement, though not legal

Stu
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Old 01-11-2020, 22:34   #5
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Plenty of h4 uprated headlight looms available on eBay
Mk2 golf ones will fit
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Old 02-11-2020, 18:45   #6
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Old 08-11-2020, 10:33   #7
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I tried various globes too but were all pretty useless until this...

https://www.iilumo.com/products/cosmic-plus-h4

Very bright. That black part at the bottom is a fan. Very happy with it.

Bought the package actually.

https://www.iilumo.com/products/mits...-6-led-package
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Old 08-11-2020, 12:04   #8
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Old 08-11-2020, 12:37   #9
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Quote:
Originally Posted by itrdc5 View Post
I tried various globes too but were all pretty useless until this...

https://www.iilumo.com/products/cosmic-plus-h4

Very bright. That black part at the bottom is a fan. Very happy with it.

Bought the package actually.

https://www.iilumo.com/products/mits...-6-led-package

GULP

I paid £23.99 for a pair of these and fitted them to the Evo 6 prior to posting this thread.
My Mrs is using the car at the moment, and she was complaining that the lights were pants, but these are reported as a big improvement.

The only negative is that you can't fit the dust boots onto the back of the headlight enclosure due to the massive heat-sink and fan.
I'll need to mock up something as a replacement dust boot (I'm currently thinking of a black nitrile glove with the fingers cut off to make a tube and tie wrapping that to both the outside of the lamp where the original dust boot located, and another tie wrap at the base of the heat sink).

The bulbs I bought are 10,000 Lumens I think; 12,000 Lumens are available - I was considering this extra relay loom to get the max power draw into the brighter bulbs?

I wonder
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Old 08-11-2020, 15:49   #10
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I fitted some of those with the fan at the back, managed to put the original boot on from the bulb side, it just squeezes over, makes it a bit fiddly to fit the bulb afterwards but it worked.
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