No fog light air duct to intake

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  • DMF
    Advanced Member
    • Dec 2007
    • 150

    #1

    No fog light air duct to intake

    Wasn't sure how to title it, but I guess you get the idea.

    My driver's side fog light got ripped out by hitting a tire tread on I90 at 70MPH.

    The missing fog light look has grown on me (gives character) and I am now thinking about installing a large bendable tube which would force air towards my K&N cone filter.

    I know people usually use empty fog light ducts for brake cooling, but I do not feel like giving up my 1 working light.

    Thoughts? Has anyone done or thought about this before?
  • kamotors
    R3V OG
    • Nov 2007
    • 7102

    #2
    i read some where that ram air doesn't even start working untill 90mph, and thats with an enclosed box, i think it built around .2 psi at 90mph. but its better than a hood scoop or removing a headlight i guess.


    7speedshop.com

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    • Hallen
      E30 Enthusiast
      • Dec 2007
      • 1008

      #3
      Mostly true, but getting cool(er) air into the intake would be a benefit since that cone filter is just sucking hot air out of the engine bay (unless you have a heat shield). But, you need to make sure you are not going to suck up a bunch of dirt and water through that thing.
      1987 E30 325is
      1999 E46 323i
      RIP 1994 E32 740iL
      oo=[][]=oo

      Comment

      • lordofthewaters
        Mod Crazy
        • Oct 2005
        • 714

        #4
        +1 that's why you don't see road cars with this. First full puddle you've sucked up water.

        Sarcasm is a body's natural defense against stupid.
        When a man talks dirty to a woman, it's sexual harassment. When a woman talks dirty to a man, it's £3.95 per minute.
        "My mother never saw the irony in calling me a son-of-a-bitch." Jack Nicholson"
        Old age and treachery will always overcome youth and skill.



        Comment

        • DMF
          Advanced Member
          • Dec 2007
          • 150

          #5
          There is a flat area of the engine bay which I would have to modify in order to get air to the cone.. I was thinking of just having a elbow pipe pointing up towards the intake... but I guess it really isn't worth the hassle especially since I drive rain, sleet or snow.

          I could also install butterfly valve so I could close the duct when it is raining :)

          Comment

          • ethree
            E30 Fanatic
            • Aug 2007
            • 1213

            #6
            I have a set of fogs in good condition if you're interested.

            Comment

            • DMF
              Advanced Member
              • Dec 2007
              • 150

              #7
              Yeah, if you actually read my post you would know that I am not looking to replace my missing fog light.

              But thanks for offering.. I might consider it if you would sell one of them for cheap.

              Comment

              • p0cket penguins
                E30 Addict
                • Jul 2008
                • 481

                #8
                I did the exact same thing on my 2004 volvo s60r... i just drilled a 3 inch hole under the air box and routed some neoprene duct to the fog light and i used a naca duct... since you have two points of air entry water is not sucked into the airbox..... even at high speeds on the highway during heavy rain storms...

                Comment

                • ethree
                  E30 Fanatic
                  • Aug 2007
                  • 1213

                  #9
                  Originally posted by DMF
                  Yeah, if you actually read my post you would know that I am not looking to replace my missing fog light.

                  But thanks for offering.. I might consider it if you would sell one of them for cheap.
                  I did read your post, I just figured you might want a set, just putting it out there. And no, I won't sell one, wtf do I do with the other one?

                  Comment

                  • Molbius
                    Noobie
                    • Aug 2008
                    • 20

                    #10
                    I know of a scion tc that's had this very same mod for over a year now and never had the slightest problem with aqua lock. As long as the opening doesn't remain completely submerged it doesn't ever create a vacuum so no water makes it to the airbox.
                    Crossfire + Pole + Isaac Newton's freakin self = sigpic

                    Comment

                    • rodrigo
                      E30 Modder
                      • Aug 2007
                      • 923

                      #11
                      pocketpenguins on the E30 scene...nice!

                      Originally posted by p0cket penguins
                      I did the exact same thing on my 2004 volvo s60r... i just drilled a 3 inch hole under the air box and routed some neoprene duct to the fog light and i used a naca duct... since you have two points of air entry water is not sucked into the airbox..... even at high speeds on the highway during heavy rain storms...

                      Comment

                      • kamotors
                        R3V OG
                        • Nov 2007
                        • 7102

                        #12
                        this was invented for a reason



                        7speedshop.com

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