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Old 06-12-2005, 12:41 AM   #1
vinceGC8
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Join Date: Oct 2004
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2008 Impreza STi
Dark Grey Metallic

Default JDM Beam Pattern

how hard is it to change the beam pattern on JDM headlights?

is it worth the time and trouble to correct the pattern? since i gotten the car(6months ago, used) ive been flashed only once.

im also going to be sanding it removing all the rock chips on the ext and adding rockblocker. should i do that after i change the beam or does it not matter? basically, will the rock blocker stuff melt in the oven is my question?
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Old 06-12-2005, 12:57 AM   #2
Mulder
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Yes it's worth it. You may not be flashed every time but your lights are shining into oncoming traffic.
Take them apart first, before you apply the film. It isn't meant to be baked.
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Old 06-12-2005, 01:01 AM   #3
vinceGC8
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forgot to ask

i think i saw on i-club where some people just made the mask straight rather than change it into a LHD mask so the beam would look like

_____ instead of __/ __/

is there an advantage you guys see of either one?
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Old 06-12-2005, 01:04 AM   #4
Mulder
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The only mod possible that I know of is to flatten the mask and make the pattern "neutral". I don't think there is a way to actually reverse it and make them LHD E-code lights.
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Old 06-12-2005, 01:07 AM   #5
vinceGC8
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i was looking at the scoobymods.com tutorial and the i-club tutorial
http://www.scoobymods.com/forums/showthread.php?t=2421
http://www.nasioc.com/forums/showthr...?threadid=3988

and they showed two different types of modifications: "neutral" and "LHD"

thats y i asked.

edit: lol my link got changed from i-club to nasioc.

just change nasioc to i-club
www i-club com/forums/showthread.php?threadid=3988

Last edited by vinceGC8; 06-12-2005 at 01:50 AM.
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Old 06-12-2005, 01:11 AM   #6
Mulder
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Ok, then maybe it is possible. I haven't studied this in detail since I don't have JDM's and I've never done this for anyone.
The flat pattern may allow you to raise the beam a bit more since you don't have to worry about the raised portion being too high and bothering drivers ahead of you. OTOH, the rising pattern helps illuminate the right side of the road and lets you see road signs better as well as hazards like deer.
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Old 06-13-2005, 08:12 PM   #7
garie
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i did this mod a cpl days ago to my jdm halogen lights. I ended up just doing the "nuetraL" pattern by flattening the plates with my dremel. It didnt take that long..just take your time and everyhting should go ok. took 2 hrs or so.

baked the lights at 225F for 18 or so minutes.

The beam pattern now is alot better than it was b4 because I no longer need to point my drivers light at the ground. I still need to fiddle around with the adjustment screws in the lights but its way better than b4.
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Old 06-15-2005, 12:32 AM   #8
vinceGC8
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thanks. what did u use to reseal the lights?
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