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  • AIR INTAKE TUBE MOD

    Has anyone done an air intake tube mod and if so what did they do any suggestions etc ?

    Pictures would be great !!!

    Cheers,
    98 PRADO V6
    VZJ95R

  • #2
    Re: AIR INTAKE TUBE MOD

    Mod to do what?

    And do you mean the intake going into the airbox, or the intake going from the airbox to the engine?

    I've got a 4" custom snorkel going all the way to the airbox, which is a heap better than the standard snorkel/airbox intake as it goes down into a tiny piece inside the front guard that would be 2-2.5" at best.

    If you're talking about the intake pipe between the airbox and engine, I can see re-fitting the sensors as being a little problem, although probably fairly easy to overcome.
    <Rob> '12 Prado GX - https://www.pradopoint.com.au/forum/general/my-rig-build-up/32702-i-m-back-with-a-2012-150-gx-toorak-tractor

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    • #3
      Re: AIR INTAKE TUBE MOD

      Yep sorry, airbox to engine.

      havnt got a snorkel yet!

      Cheers,
      Pete
      98 PRADO V6
      VZJ95R

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      • #4
        Re: AIR INTAKE TUBE MOD

        What would you be aiming to achieve? A more free flowing and larger pipe?

        Edit: Just went down to have a look at mine, took some photos if you want to see the standard setup but it looks like there isn't much you can do.

        There's a heap of sensors and things hanging off it, and the actual pipe itself is large and free flowing without any stupid angles in it.

        I think you'd find you'd get absolutely no improvement doing anything with it. Remember no matter how big the intake pipe you've still got the throttle body determining how much air will get in.
        <Rob> '12 Prado GX - https://www.pradopoint.com.au/forum/general/my-rig-build-up/32702-i-m-back-with-a-2012-150-gx-toorak-tractor

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        • #5
          Re: AIR INTAKE TUBE MOD

          I have seen a couple of prados advertised on ebay, sporting a modd to the air intake. What they have done is removed the "air intake silencer", the big peice of plastic in between the MAS and the TPS. They have claimed economy increases of upwards of 1l/100klm. The only website that i can find that sells a kit to do this is in the states.
          link.
          http://www.airaidsales.com/vehicle/toyo ... -PRD3.aspx
          A similar modd could be achieved using original clamps and a piece of tube, 2.75" from memory. The only thing is that you would need to re-plumb one of the engine vacuum/EGR valves into the tube, or system.
          Any air intake modd that removes restriction of the air intake is a good thing, as long as the exhaust can match it.
          Work is interrupting time for Trips and Mods

          Comment


          • #6
            Re: AIR INTAKE TUBE MOD

            Originally posted by joffy4819
            I have seen a couple of prados advertised on ebay, sporting a modd to the air intake. What they have done is removed the "air intake silencer", the big peice of plastic in between the MAS and the TPS. They have claimed economy increases of upwards of 1l/100klm. The only website that i can find that sells a kit to do this is in the states.
            link.
            http://www.airaidsales.com/vehicle/toyo ... -PRD3.aspx
            A similar modd could be achieved using original clamps and a piece of tube, 2.75" from memory. The only thing is that you would need to re-plumb one of the engine vacuum/EGR valves into the tube, or system.
            Any air intake modd that removes restriction of the air intake is a good thing, as long as the exhaust can match it.

            I have this on mine, bought it with a throttle body spacer, there are two vacuum tubes that need to be on the pipe, I believe they are for the engine speed sensitive power steering (going by where I traced them to), when you take a good look at the original tubing and silencer, it's clearly a hindrance to the flow, and without it you get a nice subtle intake growl at higher revs

            PS: click the 'MY PRADO' link below for pics.
            [url=http://www.4wdmonthly.com.au/forum/showthread.php?t=29022]My Prado[/url]

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            • #7
              Re: AIR INTAKE TUBE MOD

              Hay Taresk, did yu notice any power increse after you fited the air intake kit ?

              Comment


              • #8
                Re: AIR INTAKE TUBE MOD

                A slight one, I certainly noticed it, but my problem is I still haven't gotten around to doing my exhaust, so with a bottleneck like a crushed standard exhaust, I'm not seeing the full benefit of my intake mods.
                [url=http://www.4wdmonthly.com.au/forum/showthread.php?t=29022]My Prado[/url]

                Comment


                • #9
                  Re: AIR INTAKE TUBE MOD

                  Yeh! I know what you meen, I'v got the exaust minus extractors but the rest is stock, accept for a unichip,not sure about the tuning though. I cant help but think if you can get em to breath better it would make a huge diferance. Mine dos'nt have much guts under 3000 rpm.It's fine off road, even sand but on the highway it's a drag. I realy like the look of the suppercharger you can put on em BUT the prise is a bit out of my reach.
                  Thanks Teza.
                  PS I like your set up, looks nice.

                  Comment


                  • #10
                    So, digging out this thread, I did it.

                    After reading this https://www.yotatech.com/how-tos/a/t...ilencer-415133 i did a little research.

                    Main reason for me: My 5vzfe is a dual fuel (LPG) converted one. Backfiring is blowing away my air silencer box a couple of times. Looking for an alternative I now upgraded my air cleaner box with a valve https://www.ebay.com.au/itm/LPG-Back...-/221358371484 and replace the silencer box with a simple pipe.
                    This pipe from Bunnings fits perfect!!! Only cut into the right length: https://www.bunnings.com.au/holman-6...-pipe_p4770088

                    The vacuum line could connected according to the yotatech manual (right picture)

                    Cost 10 bugs and 10 minutes ….

                    Click image for larger version

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