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Hood Scoop

Discussion in '2nd Gen. Tacomas (2005-2015)' started by Casey05Taco, Sep 25, 2008.

  1. Sep 25, 2008 at 11:39 PM
    #1
    Casey05Taco

    Casey05Taco [OP] Well-Known Member

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    Has anybody with a hood scoop actually opened it up? I looked this morning and i noticed that it isnt opened to the engine. If anybody has opened it do you see any difference? better air flow? cooler engine?
     
  2. Sep 26, 2008 at 2:09 AM
    #2
    williegreen33

    williegreen33 Active Member

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    It's not functional. It is just for looks!!!!
     
  3. Sep 26, 2008 at 5:04 AM
    #3
    bcmedic

    bcmedic Well-Known Member

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    opening it up wouldnt do a thing except get more dirt and water into your motor. id be a different story if you mounted an intercooler or something up there and opened it up i guess.
     
  4. Sep 26, 2008 at 5:43 AM
    #4
    Dark Knight

    Dark Knight Well-Known Member

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    pm chris4x4. i saw in a different thread where he was talking about that area on the hood being a negative pressure zone, or something like that, where even if it were open the air just goes right over top of it. so basically its not even close to functional, would be cool if it was though.
     
  5. Sep 26, 2008 at 5:51 AM
    #5
    S_A_Aceman

    S_A_Aceman KS National Guard

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    I know when its raining, I get a puddle on top of the scoop and it only fludders a little no matte how fast I go. So it surely isnt an air gatering point closed up. IF it wer to be opened up and air dumped out below the truck it could cause some vaccume effect, but it would screw up the whole aerodynamic effect of the front end.
     
  6. Sep 26, 2008 at 5:57 AM
    #6
    spaghettiedy

    spaghettiedy Well-Known Member

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  7. Sep 26, 2008 at 6:14 AM
    #7
    jasonh

    jasonh tossed salad anyone?

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    You could conect a tube from the scoop to your enclosed cai box. I seen it in one tacoma before. Not sure how well it worked though.
     
  8. Sep 26, 2008 at 6:36 AM
    #8
    Munkey

    Munkey Well-Known Member

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    If it's true about the scoop being in a negative pressure zone, then this would have a negative affect. It would actually pull air OUT of the airbox.
     
  9. Sep 26, 2008 at 6:39 AM
    #9
    derekabraham

    derekabraham Living vicariously through everybody

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    Stick on hood scoop from Autozone.
    This thread gave me total deja vu.
     
  10. Sep 26, 2008 at 6:41 AM
    #10
    Agent475

    Agent475 "Mark It Zero"

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    I opened mine up... No noticable difference in dirt/mud in the engine.... and no noticable shift in engine temp...
     
  11. Sep 26, 2008 at 6:44 AM
    #11
    Dark Knight

    Dark Knight Well-Known Member

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    Yo me too, i cant find it to link it but this is the same thread.
     
  12. Sep 26, 2008 at 7:11 AM
    #12
    lsocoee

    lsocoee My hair is all natural Moderator

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    this is just ridiculous, there is a negative pressure there because the scoop is closed. The wind hits the flat face of the scoop and is deflected all around, forming a static bubble of air there. If the scoop were to be opened up, air would definitely be funneled into the engine bay. The bottom of the engine bay is completely open and would provide for an easy outlet of the air coming in from the top.
     
  13. Sep 26, 2008 at 8:20 AM
    #13
    kristopherl

    kristopherl AKA: Jake the Wolf

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    SPOOKEY :eek: I was thinking the same thing as I was reading this thread.
     
  14. Sep 26, 2008 at 8:28 AM
    #14
    Dark Knight

    Dark Knight Well-Known Member

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    I dont think chris4x4 was saying negative pressure because it was closed. The way i understood it the air would hit the front of the grill and be directed up and over meaning the opening being open would still suck air into it but it wouldnt be like the air was being forced into the scoop. I dono just what i read.
     
  15. Sep 26, 2008 at 8:37 AM
    #15
    S_A_Aceman

    S_A_Aceman KS National Guard

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    Im not 100% disagreeing with you, but until I saw airflow tests to verify one way of the other, I would lean toward the scoop not flowing much of any air. This supported by Bulldogs post of no noticable dirt increase under the hood. Engine temp wouldnt change, its regulated by the thermostat not air passing by it.
     
  16. Sep 26, 2008 at 8:43 AM
    #16
    lsocoee

    lsocoee My hair is all natural Moderator

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    Chris and I are in complete disagreement on this matter. I might have to finally do what I threatened to do on this debate earlier. I'll tape some string to my hood so we can put this matter to rest.

    I agree that opening up the scoop would probably not help anything. If it was going to help, then I bet Toyota would have it opened already.
     
  17. Sep 26, 2008 at 8:49 AM
    #17
    Dark Knight

    Dark Knight Well-Known Member

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    Yep agreed Toyota and their TRD department are'nt dumb. the string test could maybe give some answers.
     
  18. Sep 26, 2008 at 9:02 AM
    #18
    S_A_Aceman

    S_A_Aceman KS National Guard

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    Do you have your scoop opened? The string would tell a lot, but needs to be done on both configurations to really tell the story.
     
  19. Sep 26, 2008 at 9:02 AM
    #19
    kristopherl

    kristopherl AKA: Jake the Wolf

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    there are a lot of cars and trucks out there with factory hood scoops and I guarantee that the sports cars have positive pressure. I think the key reason why they aren't funtional and why TRD would not utilize it is due to the fact that there would be a rediculous amount of water and dirt getting sucked in for being an every day driver. you would be cleaning the filter every week.
     
  20. Sep 26, 2008 at 9:24 AM
    #20
    lsocoee

    lsocoee My hair is all natural Moderator

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    I don't have a scoop, so this would be about the same as having an open scoop.
     
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