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Old 07-01-2008, 04:27 PM   #1
litebrite2001
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Join Date: Aug 2003
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2002 WRX Wagon
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Default JDM RHD to LHD HID Conversion

I've thumbed through more than a dozen posts of people trying to do this and none of them come out a 100% success story. It seems a lot of people are grinding down the shield to produce a flat cutoff, but then are experiencing glare.

My theory is that by grinding the shield, you have created too large of an opening between the reflector and the lens and the light is being deflected around the shield. Unfortunately, since the shield mounts on the outside, shimming this would only make it worse.

I believe a better solution would be to build up the lower end of the shield with high temp putty (or sheet metal). Then the cutoff could be adjusted by shimming the shield, which actually pulls it further out of the light, but not as far as a complete grinding would.

I have actually used some 26ga galvanized sheet metal to make up a pretty darn good looking LHD shield. I mounted it to the JDM shield buy drilling a hole and tapping it. I drilled out a slightly larger hole in the sheet metal to allow for adjustment. The whole assembly was painted with DEI black high temp silicone. This is merely the test setup though. If it works, I will then make a version II setup using clay. A successful test there will lead to the use of high temp putty to complete the job. I just wanted something that was reversible, and filling a screw hole is easy enough.

I probably won't attempt any more on this until after the 4th, but wanted to post it up so that my fellow enthusiasts can prod me to get it done faster. I have a tendency to wander when it comes to my projects.

Please, do your part to annoy me for photos and write-ups by way of posts and pm's...
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Old 07-02-2008, 02:42 AM   #2
ProdriveDreams
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I don't know about the bugeye lights but I tried to do something similar on my JDM 1995 legacy projectors. The problem was the reflector in the back of the projector was actually set up to direct more light towards the left side of the road and it wasn't just the cutoff. granted these were halogen projectors and not HID, something to look into. It was noticeable on those lights, the light was mounted off center and the whole reflector in the back was asymmetrical.
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Old 07-02-2008, 11:00 AM   #3
litebrite2001
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I've eyeballed the reflectors, and there doesn't appear to be any discernible difference in symmetry. My eye may be deceiving me though. There ARE ridges on three 'sides' though, and I'm not sure what those ridges are. Without measuring, I'd say the refelctor are symmetrical across the horizontal axis and symmetrical across the vertical axis. They are different widths thoug.

I will take some measurements and see if the reflector could be turned upside down. This would put the ridges on the other side. I will have to notch out the side for this to work.
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Old 08-08-2008, 10:51 PM   #4
unclemat
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Bump for more info and pics... I got JDM HIDs for my 05 LGT and wondering how to approach this problem. My thread on legacygt.com is here:

http://legacygt.com/forums/showthread.php?t=93802
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Old 08-10-2008, 12:42 AM   #5
litebrite2001
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There wasn't alot of interest, so I didn't take pics. A verbal description though...
After making the sheet metal 'reverse shield' I took the actual shields to a belt sander and made the cutoff a flat line. I then temporarily attached the 'reverse shield' as a guide. I used high temp epoxy putty from the local auto store. I molded it onto the shield following the lines of the 'reverse shield'. Once the putty hardened, I took it back to the belt sander to flatten it. I then took a needle file to the cutoff step to make sure that it was a straight line also. All in all, it turn out pretty good. The one thing I messed up on though, was the cutoff step slope. I made them slightly different, and you can see this when the two beams come together. It's not noticeable on the street, or even up close on a wall. But, if you back up to the point where the beams meet on a wall, it is noticeable.
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Old 08-10-2008, 09:11 AM   #6
unclemat
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Thx for reply! Belt sander? Where did you find that?
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Old 08-10-2008, 04:02 PM   #7
litebrite2001
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At work. We have a table sander. Its a belt sander turned upside down.
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