What is this?>

SIFUJettadriver98SIFUJettadriver98 Band Wagon
in Engine & Drivetrain
What is this tube or whatever, is it important? :?:

Comments

  • SikocivicSikocivic Wagonist
    Air intake tube. It connects to the stock airbox. I think this is the first thing everybody takes off their cars when they get them. Threw mine away a long time ago. :lol:
  • bam-bambam-bam Council Member
    It's very common to see that air intake tube removed, if only for the reason that it can crack the radiator if you inadvertently lean on it.
    Is it important? Obviously Honda's engineers put it there for a reason, whether it's to capture colder air, or just for the runner length I don't know. When I had a stock setup, I removed it and the 'muffler' box behind the bumper and felt like I had better airflow. That's purely subjective...could've just been because it was louder!

    Do a study for us: Run 3 tanks with it, then 3 tanks without. Track the mileage and your observations about power/feel/sound.
  • superhatchsuperhatch Moderator
    My assumption was this was basically a resonator box/tube. You find them in almost every car on the road. The purpose is to quiet the air intake noise and in some cases to increase the flow dynamics of the intake air (reduce turbulence). Most times taking them off makes a noise increase but then leaves your intake box with a hole into the engine bay which might or might not be good depending on your intake box location.

    You can run some dryer tubing from your front bumper to this open hole to make a diy cai if you want to try and reduce the amount of warm air you're pulling in w/o the resonator in place. I don't think its a huge concern in our cars, but colder air is always better.

    I recall a 5th gen in the speedvision cup that (after multiple dyno pulls and on track experience) ended up using a stock type R intake on their b16. http://www.modified.com/features/0103sc ... index.html "Interestingly, Foo used a stock airbox, which he says flows as efficiently as anything else he's seen." I've seen an interview where he expounded on it a bit more.

    Basically, removing your resonator will increase your intake sound, but not really affect anything else.
  • udubrx7udubrx7 Senior Wagonist
    They have those stock on rx7s, but are a pretty sweet little deal and route a ton of air straight from an intake in the bumper to the airbox. I, of course, removed the airbox and put on an open filter - but left the duct because it routed the air straight to the filter.

    That gave me the idea of using this stock honda pipe for a better use. If you take out all of the airbox and muffler stuff from the passenger front corner of the car, you can look at it from above and see a hole that just goes to the underbelly pan. I just stuck the stock honda pipe down the hole so that the outlet would blow on my intake filter. Then I cut up the stock airbox and made a little ram air scoop down where the intake muffler was that would feed right into the resonator pipe, which in turn blew air on my filter. Some zip ties and duct tape, and a little bit of moving around of the underbelly flap in that corner, and it's a homemade cold air intake made from stock parts that you don't need! I guess I should do a write up.
  • suspendedHatchsuspendedHatch Wagonist
    It's a "hot air" intake. That place where it draws air, above the radiator and next to the exhaust manifold, is the hottest air under the hood.
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