Airbox removal issues?

Discussion in 'The Garage' started by ABHooligan, Jul 12, 2018 at 3:49 AM.

  1. ABHooligan

    ABHooligan The Flying Mythos

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    I've been shopping for a Scrambler. It seems every one I've looked at has the stock airbox removed and pod filters installed. While this may add .12hp at 17000 rpms, I wonder about the driveability. I see posts on forums where people do this mod and their bike doesn't run the same afterwards.

    Also, I plan to ride the bike in all weathers, so how will those open pod filters be affected by soaking rain? What about gravel roads? Should I just keep hoping for an unmolested bike?
    #1
  2. RetiredandRiding

    RetiredandRiding Retired to Ride

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    Or you could go back to the stock airbox.
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  3. gmiguy

    gmiguy You rode a what to where?

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    I'd keep hunting for something unmolested. I'm sure they're out there.

    I've never regretted buying an unmodified vehicle, but have spent enough effort undoing or correcting prior owner's sweet mods that I'm inclined not to go down that route unless I absolutely have to or the price break is significant.

    The exception to this is if the prior owner is truly technically knowledgeable and understands what they changed, what the resulting tradeoffs are, why they made the mod beyond "everybody on the internet said I should do this", their workmanship is good, AND this all aligns with what I would want to do to the vehicle anyway.

    But if they were just doing pods "because pods are bettter, duh" then I'd pass.

    I've had more luck finding unmodified vehicles on Craigslist or other general sales websites than on vehicle-specific fora; I attribute this to the forum communities encouraging owners to monkey with stuff unnecessarily.
    #3
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  4. ohgood

    ohgood Just givver tha berries !!!

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    lol you petpretty much nailed it right there.

    the worst thing you will ever see is a pod filter half eaten away and gravel in the inside. so sad.
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  5. scapegoat

    scapegoat Pushin forward back

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    The open pods are great, move your legs, get a good cross breeze and it changes air volume and or air temp entering the cylinders. Dyno's dont lie. Double the bad and get some K&N individual filters, the ones with big holes in the gauze that make you go fast and your really good to go!!.
    #5
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  6. ABHooligan

    ABHooligan The Flying Mythos

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    I could, but the carb'd bikes require rejetting and adjusting to stock trim, and the FI bikes require the O2 sensor to be re-added and the ECU reflashed to stock. I'm buying it to ride, not to tune on constantly and brag about how it only has 800 miles on it.

    I appreciate everyone's perspective; I guess I'll just look for something that hasn't been fubar'd up.
    #6
  7. kenny robert

    kenny robert Long timer

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    pods are shit you will loose the enhanced effect the airbox and the tuned intake length designed in to the machine by the oem
    putting a freer flowing filter element on stock airbox and removing the noise reducing dam is as far as you want to go
    take a bike like a tl1000r and the whole system including the ram air tubes are part of a resonant deal that maximizes power
    see pods alone on a carb bell mouth(besides restricting flow) shorten the tuned length of the intake, moving the power up high, and at times higher than the intake cam duration can support
    #7
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  8. scapegoat

    scapegoat Pushin forward back

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    Be patient and keep on looking. 100% bone stock and you know what you get.
    #8
  9. shovelstrokeed

    shovelstrokeed Long timer

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    If you are lucky enough to peer under the body work of a Pro Stock motorcycle, you'll find a giant air box enclosing the carbs. Inside there are a bunch of baffles and air straighteners to make the flow around the carb bell mouths as smooth and still as possible. Since those motors probably are making much higher specific outputs than most any other normally aspirated engine, one would think they know a little something about air flow.
    A word of warning: Don't go peeking without permission, air box design is a closely held secret in most camps and they will go to extremes to keep your nose out of their business. You might wind up with a flattened nose.
    #9
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  10. anotherguy

    anotherguy unsympathetic

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    250HP MotoGP bikes have airboxes. So do 65HP factory MX bikes. As do 23HP trials bikes. They are a tuning component and removing them is asking for trouble. Period.
    #10
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  11. VX Rider

    VX Rider Long timer

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    I hear your concern about pods and rejetting.....the thing is, that in many cases the person putting the dumb pod filters on....knows jack about what they did or should do...so the.bike is most likely NOT been rejeted properly so no work to put the stock airbox on at all....

    That and....if you just put the.stock jets in the carb while fitting the.stock airbox
    Two birds one stone, you get to make.sure.your carbs are.clean and.fresh for.your ridding enjoyment.
    #11
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  12. AlpineRAM

    AlpineRAM PartsChaser

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    And pray that the engine has not already digested the top inch of gravel on every mile it has been ridden through the ironic man-bun filters made from craft-beer drool thread..
    And pray that the massive lean condition and the pinging hasn't already ate up the piston crown.
    And pray that the creative genius hasn't let the crank vent open to the rain so that you have unique crafty water-cooled oil.

    Just the things I saw when looking at a bike for a friend.. all on one bike.
    #12
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  13. MATTY

    MATTY BORDER RAIDER

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    Much of the negativity towards pods is brought about by people fitting them to the typical 60s through 2000s cv carbs, these need some restriction on some bikes more than others, and simply throwing on a pair of pods can have the bike falling on its face in some cases during acceleration.
    Re jetting or modifying the slides springs needles are all often needed to get performance across the rev range, many motorcyclists simply don't have the patience and ability to solve the problems, and hence all the negativity on the message boards one sees.
    My advise is bin the airbox if you are prepared to sit down and solve the problems if and as they arise, if you want an easy life on the other hand and believe all the hype about millions of dollars designing airboxes you can never improve on them, just leave well alone.
    My take on this is rip the air box off and fit pods steel wire or foam they will all work fine if you do your part right and set the bike up to run on them properly, then all you need do is oil the mesh/ foam filters and generally keep them clean you will be ok.
    #13
  14. usgser

    usgser Long timer

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    Cliff Notes version: PODS SUCK! As in wrong tool for the job.
    #14