550 headlight upgrade | Page 3 | FerrariChat

550 headlight upgrade

Discussion in '456/550/575' started by stan996turbo, Feb 1, 2023.

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  1. Cribbj

    Cribbj Formula 3
    BANNED

    Probably, but I was disappointed with the Philips LEDs, because they had insufficient clocking adjustment. Supposedly for best lighting and least glare the housing for the LEDs should be vertical with the LEDs on either side of the housing pointing at 3 & 9. Best I could get with the Philips were 2 & 8.
     
    DPA360 likes this.
  2. DPA360

    DPA360 Karting

    Jul 16, 2007
    153
    Los Angeles Cali
    Correct, thats why I am going to try the GTR as they have a clocking adjustment for 3&9 which hopefully will work
     
  3. Auraraptor

    Auraraptor F1 World Champ
    Lifetime Rossa Owner

    Sep 25, 2002
    13,861
    MO
    Full Name:
    Omar
    This was likely mentioned before but to stress US and Euro spec use very different main housing bulb assemblies based on a collection of goofy US laws. The slight housing/wiring difference may account for some of the variability.
     
    DPA360 likes this.
  4. otoupalik

    otoupalik Formula Junior

    Feb 22, 2004
    715
    Scottsdale, AZ
    Full Name:
    Brad Otoupalik
    This is all why I am waiting to do the projector swap v bulb swap. The housing and lens have a significant impact in the resulting light output based on previous light mods I have done.
     
  5. DPA360

    DPA360 Karting

    Jul 16, 2007
    153
    Los Angeles Cali
    I just ordered the GTR bulbs today will try them out see if they fit and will report back
     
    otoupalik likes this.
  6. DPA360

    DPA360 Karting

    Jul 16, 2007
    153
    Los Angeles Cali
    Can anyone chime in for 550 Headlight bulb model #
    low beam -H7
    high beam -H1
    headlight fog light -?
    Lower Valance fog light-?
     
  7. Vilhuer

    Vilhuer Karting

    Aug 3, 2008
    156
    Helsinki, Finland
    I'm only writing about ROW LHD lights. Though RHD should be same and I think US model is also same unlike many older models. At least every owners manual I have seen only mention same Hx bulbs.

    low beam -H7
    high beam -H1
    headlight fog light - no such thing, parking light and turn signal are other bulbs in them and they can both be replaced with LEDs
    Lower Valance fog light-H1 with less space in housing than in headlight. Also wiring goes through cover into connector making things little more difficult to improve it at same time. Will probably newer need them in actual use so best available normal halogens in and forget them. Another reason not to install LEDs is local yearly inspection. Fogs are pain to get to and most inspectors hate LEDs and they aren't strictly legal to use. Other lights are lesser evil to change back to halogen if they want them changed to pass.

    Philips 9100 H1 grounding problem can possibly be just batch I got. They can't be that stupid not to notice such basic mistake and fix it. I used Dremel to clean up enough surface to make proper contact.
     
  8. BarthVader

    BarthVader Karting

    Sep 19, 2021
    54
    South Carolina
    Any updates on the Morimoto project? My headlights are awful as is our deer population.
     

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