1. This site uses cookies. By continuing to use this site, you are agreeing to our use of cookies. Learn More.

what air filter?

Discussion in 'A4/S4 forum(B5 Chassis)' started by ian52, Mar 15, 2009.

  1. ian52

    ian52 2000 a4 1.8tqs-yellow

    Joined:
    May 3, 2008
    Messages:
    1,199
    Likes Received:
    1
    just got a chip in my quattro sport and want to get a pannel filter to help things along. are they worth while or is a standard air filter fine? you can hear the turbo sucking a lot harder now anyway so a more free flowing filter is bound to help a bit.
     
  2. g60leigh

    g60leigh Well-Known Member

    Joined:
    Jun 16, 2007
    Messages:
    1,525
    Likes Received:
    166
    I have gone down the cone filter with a heat shield over the turbo, works really well
     
  3. g60leigh

    g60leigh Well-Known Member

    Joined:
    Jun 16, 2007
    Messages:
    1,525
    Likes Received:
    166
    just do not excessively oil it
     
  4. olivarley

    olivarley New Member

    Joined:
    Jan 16, 2009
    Messages:
    14
    Likes Received:
    0
    Hi mate,

    Just wondering how much difference the chip makes?
     
  5. aragorn

    aragorn "Stick a V8 in it!"
    Staff Member Moderator VCDS Map User

    Joined:
    Jan 30, 2008
    Messages:
    16,533
    Likes Received:
    463
    Personally, i'd steer clear.

    The paper panel filter can flow the 380HP the RS4 requires, so its going to be perfectly happy flowing the 200hp your engine is currently producing.

    Aftermarket filters do not filter as well, and most of them rely on being impregnated with oil, oil which will contaminate your AFM, leaving you a nice bill.
     
  6. Broken Byzan

    Broken Byzan Photographic Moderator
    Staff Member Moderator VCDS Map User

    Joined:
    Apr 26, 2004
    Messages:
    12,964
    Likes Received:
    381
    The air box you currently have with a fresh paperfilter can flow more than enoug air to feed a 300bhp or more engine. The main thing you will get with a panel or cone is more noise
     
  7. audinary

    audinary Complete And Utter Member

    Joined:
    Aug 2, 2008
    Messages:
    675
    Likes Received:
    0
    I love it when the best route is the cheapest.

    Reminds me of a mate when he took me out on his boat. We were going well enough, I thought, but he reckoned it didn't feel as quick as it should be. He looked at the tacho, thought maybe the prop was damaged or not the right pitch.

    Then it dawned on him. 3 up, we were carrying more weight than usual and it was affecting the trim.

    He looked at Chloe, said "You, OUT". His girlfriend went overboard and pretty soon we were doing 40 knots.

    Irrelevant but I enjoyed playing it through my mind again. Carry on!
     
  8. ian52

    ian52 2000 a4 1.8tqs-yellow

    Joined:
    May 3, 2008
    Messages:
    1,199
    Likes Received:
    1
    its much better mid range with the chip. should be about 210-215bhp instead of 180 now.
     
  9. Siena

    Siena Active Member

    Joined:
    Oct 28, 2007
    Messages:
    2,626
    Likes Received:
    4
    Paper filter gets my vote.

    Oil + MAF's don't mix.

    You could well not oil, or use very little oil, but then, the larger pores would allow damaging dust to be ingested by your engine.
     
  10. AB5QTS

    AB5QTS Member

    Joined:
    Mar 1, 2009
    Messages:
    216
    Likes Received:
    2
    This thread is scaring me :unsure:. I've just recently stuck a K&N panel in my TQS. They can't be all that bad for the engine. How come they are so popular if they are gonna make my car go kaput:think:. Bit of an over-exaguration. How about the old tights over the box trick:crying:
     
  11. Siena

    Siena Active Member

    Joined:
    Oct 28, 2007
    Messages:
    2,626
    Likes Received:
    4
    ^^^ Why are Turbo Zet's or fake dump valves popular?

    If you feel larger pores in a filter, that rely on oil to trap dust are the best way forward, then by all means, go for it. When folk pay good money on a K&N or similar, it's natural they'll prefer to believe anything negative said about them is an exaggeration.

    I can only advice based on experience, I've found significantly more bore wear when rebuilding engines that have spent a lifetime being run on anything but OEM small-pored paper filters.
     
  12. aragorn

    aragorn "Stick a V8 in it!"
    Staff Member Moderator VCDS Map User

    Joined:
    Jan 30, 2008
    Messages:
    16,533
    Likes Received:
    463
    AB5: The problem is the oil in the filter.

    Most aftermarket filters flow better than paper ones, because the filter element isnt as good. Clearly the size of the smallest particle that can get thru the filter is proportional to the amount of effort you need to draw a set amount of air thru the filter.

    Aftermarket filters tend to use an element with much bigger gaps in it, to provide the "freeflow" but becuase this obviously has a detrimental effect to the actual filtration they try to get round this by impregnating the element with oil. The idea being that the small bits of **** will stick to the oil as they pass thru the large holes.

    The problem stems from this oil being drawn thru the filter into the airstream and contaminating the air flow meter. You may never have an issue, or it may die inside a few weeks, it really depends how oily the filter is and what state the AFM is to begin with.

    Lots of "performance" modifications out there are popular, but when you actually analyse them, they offer little or no benefits, and quite often can be detrimental to the car. Its just all marketing hype, and people that THINK they know what they're talking about informing others how amazing mod-x is.
     
  13. AB5QTS

    AB5QTS Member

    Joined:
    Mar 1, 2009
    Messages:
    216
    Likes Received:
    2
    Hmmm. Might need to rethink that little mod then. Cheers for the views
     
  14. Markey

    Markey Active Member

    Joined:
    Apr 13, 2004
    Messages:
    2,148
    Likes Received:
    0
    Paper filter on mine always as said above even when speaking to RS4 tuners they say even with work and mapping they still use the standard air box on powerfull RS models you just can't beat it.
     

Share This Page