Re-Installing My Supercharger

Discussion in 'F/I Mods & Tuning' started by iniazy, Aug 18, 2014.

  1. iniazy

    iniazy Active Member

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    I took your advice gadget, and managed to get ahold of the intake flexible duct of a V6 Prado. Wasn't difficult, as there are so many Prados around here with upgraded intake systems. I used a combination of Prado parts and fortuner parts and the result is astonishing. Now it has a factory look. Check out the attached picture.
     

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  2. iniazy

    iniazy Active Member

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    I recently faced a small problem with this Prado intake duct. When I push my motor to WOT, the supercharger sucks air so hard that it causes the duct to collapse at about 5000 RPM. This in turn chokes my engine and causes it to lose power suddenly.

    When it first happened, I was very confused and worried, didn't know why it was doing that. Then I noticed my Prado intake duct was collapsed a bit, and I realized what happened.

    So I stripped down my old Spectre internal wire:
    [​IMG]

    And this is how it looked like after it was stripped:
    [​IMG]

    Then I inserted it into the duct as in internal skeleton:
    [​IMG]

    Sorry about the foot coming into the picture :\
    Hopefully that should prevent it from collapsing again.
     
  3. Gadget

    Gadget Well-Known Member

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    Yep, some of those ducts are very soft rubber and when they get hot they can get more soft and such shut. I have put the wire inside of two of my trucks. Works great. Maybe someday I will design a new duct with stiffening wire built in.
     
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  4. iniazy

    iniazy Active Member

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    IMG_20171211_222836.jpg Unbelievable! The wire I put inside the duct got crushed with the squeezing of the supercharger suction. Looks like I'll go back to the Spectre flexible duct.
     
  5. FinnJ

    FinnJ New Member

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    Too much vacuum, I’d change the filter first.

    Edit: that’s before the filter box, so you have something very restrictive in your snorkel.
     
    #445 FinnJ, Dec 15, 2017
    Last edited: Dec 15, 2017
  6. Gadget

    Gadget Well-Known Member

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    What do you have on the end of the duct where it goes into the fender? The FJs have that particle separator and those are horribly restrictive. You will loose at least 20 HP with that blocking up the intake and will cause the duct to suck real easy.
     
  7. iniazy

    iniazy Active Member

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    Exactly, on your edit.

    I have the original fortuner hard plastic duct with fixed fins at the end, to make the air flow swirl into the filter. Do you think I should cut off those fins?
     
  8. NHXRUNNER

    NHXRUNNER "New Hampster"
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    I think Mark might be onto something here....May not even be at the fender, although it very well still could be. Is there a particulate filter at the very top of the snorkel? Is the inner diameter of the snorkel smaller than the flexible hose?
     
  9. Gadget

    Gadget Well-Known Member

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    Yea, loose those fins. Huge HP loss right there and it causes a lot of pressure drop in the hose.
     

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