Under-hood lighting

Discussion in 'SRT Hellcat General Discussions' started by rwhite692, Nov 23, 2015.

  1. rwhite692

    rwhite692 Silver Member

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    As you all know, Dodge didn't bother with under-hood lighting on our Challengers. I wanted to actually be able to see my engine compartment when I pop the hood at night, so I added some LEDs, and was pleasantly surprised how well it worked out, so I figured I'd share.

    UPDATE: I found a MUCH better quality switch to use for this project (see below)

    [​IMG]


    This isn't a how-to, but rather just sharing regarding the materials I used.

    I didn't want to make any modifications to the car that could not be easily removed.

    I used four of these LED modules from Onzium:

    12V Tiny SMD LED Modules : Super Bright Surface Mount SMT LEDs

    [​IMG]

    I used a door plunger switch (grounding switch) and mounted it up in front near the radiator support. I made a small right-angle bracket from stainless steel. It took some playing around to get it adjusted and positioned so that it actuated properly.

    This is the new switch I installed - the prior one was a POS:

    Amazon.com: Nickel Plated Pin Switch w/Polycarb Plunger and Rubber Boot: Car Electronics


    [​IMG]

    [​IMG]

    (Note the rubbery plastic cover is just tilted a bit it this pic, I just noticed it)

    I had a mini inline fuse holder left over from another project with a 2A fuse, so I used it. 12V wire picks up constant 12V DC at an unused terminal in the fuse box.

    [​IMG]

    All of the LED wires are extremely light gauge and are tucked up neatly under the hood insulation pad. The modules come with 3M high strength double sided mounting tape pre-applied to them. I located one module forward of each hood vent, and two in the middle:

    [​IMG]

    [​IMG]

    [​IMG]What's nice about the inside surface of the HC hood is that it provides several good spots to mount the LEDs, such that they are pointing nearly straight down at the engine compartment when the hood is open. You really don't want to mount the LEDs where they are going to shine directly into your eyes - or your friend's eyes when you are showing off your Hellcat!

    [​IMG]

    [​IMG]

    And yes, I remembered to pick up the razor blade, when I was done trimming my zip-ties :)
     
    Last edited: Dec 5, 2015
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  2. hellcat1

    hellcat1 Gold Member

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    Looks great, nice and bright
     
  3. Toolman_42

    Toolman_42 Gold Member

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    Looks great! I've got two LED bars sitting at home for the same purpose. I have decided whether to tie into the hood switch (at the latch), mount a ground switch like the one you used or hook it to a rocker switch.

    On the Charger, there is a flat area right behind the first cross support that point straight down when the hood is open. Figured that was the right place for the LED bars.
     
  4. hellcat1

    hellcat1 Gold Member

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    What's the part number on the led strips
     
  5. Diode Dynamics

    Diode Dynamics Silver Member Hellcat Supporting Vendor

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    Nice work OP!

    We have a similar kit here:



    We offer this kit in single and multicolor. The 5050-sized LEDs our strips use will provide plenty of light output for this application.

    Nick C.
     
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  6. Toolman_42

    Toolman_42 Gold Member

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  7. rwhite692

    rwhite692 Silver Member

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    IMHO, with regard to the placement of the LEDs...

    Having the illumination come from behind/under the engine, looks terrible. The engine just becomes a black mass surrounded by light.
     
  8. rwhite692

    rwhite692 Silver Member

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    [QUOTE="..... tie into the hood switch (at the latch), mount a ground switch like the one you used or hook it to a rocker switch.

    .[/QUOTE]


    I don't know about the charger, but on the challenger, there isn't (at least that I can see) any switch located at the hood latch

    On the Challenger, there is a plunger switch located on the passenger side cowl area back near the hood hinge. This switch connects to the BCM and because of this, I decided not to try to pigggyback off of it.
     
  9. Angel

    Angel Gold Member

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    Great job it looks really good and shows off the engine/compartment off fantastically.
     
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  10. Zebug

    Zebug Gold Member

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    That is pure win... Nice job
     
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  11. Carnage

    Carnage SRT Hellcat Supercharged Moderator Staff Member Hellcat Car Club Gold Supporting Member HCC Charter Member

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    Pretty good
     
  12. Toolman_42

    Toolman_42 Gold Member

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    Charger is on the latch and connects to the BCM. I see that the Challenger is different. Here is a great reference for wiring diagrams.

    Chrysler Wiring Diagrams (English)"]Chrysler Wiring Diagrams (English)[/URL]


     
    Last edited: Nov 23, 2015
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  13. sgoyal

    sgoyal Gold Member

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    Just 1 LED strip
     

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  14. Hemi Rocket

    Hemi Rocket Gold Member

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    Nice Job Rwhite... are those colored LED's or white? They look white but it may be the pic.
     
  15. rwhite692

    rwhite692 Silver Member

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    They are white LEDs. Wasn't interested in colored ones or color-changing ones.
     

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