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Thread: headlight aiming standard

  1. #1

    headlight aiming standard

    I know the current standard on this board is 2.1" of drop per 25 feet, but does anyone know where I can find that officially? I've scanned through the USDOT website and couldn't come up with anything concrete. The reason I'm asking is because I posted my retrofit on another site, and I've gotten a bunch of "you're blinding people" responses.

  2. #2
    Senior Member HID MASTER JSMexUsa's Avatar
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    Should be 3 inches.

  3. #3

  4. #4
    Senior Member HID MASTER JSMexUsa's Avatar
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    I had my TL's at 2 inches and lots of people was giving me highs all the time, so put it at 3 inches and problem solved. Many guys here has them at 3 as well.

  5. #5
    Senior Member HID Learner redls1bird's Avatar
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    mine are aimed at the 2.1 mark and i havent had a single flash since ive had them.

  6. #6
    Thanks for the replies. I've seen the FAQ on aiming, but what I'm really looking for is something from USDOT or similar. Something more..."official", persay.

  7. #7
    Senior Member HID Learner
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    try this...Danield Stern is all about DOT regulations

    http://www.danielsternlighting.com/tech/aim/aim.html
    Performed 75 HID projector retroes

    Specifically for Honda Prelude

    Author of the Automotive Lighting FAQ

    Bosch Master

  8. #8
    Senior Member HID KING 00SEinMA's Avatar
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    Mr108 posted about the US regs being 2.1" before, if that's official enough. Because I have ECE projectors, I have them aimed at ECE regulation which is 3".
    2000 Nissan Maxima
    2002 headlights w/ D2S ECE valeo and DOT cutoff shield

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