New air box

Discussion in 'Crazy-Awesome almost Dakar racers (950/990cc)' started by tahoeacr, Feb 3, 2012.

  1. BillyD

    BillyD Been here awhile

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    Seems like the reflective side of the material should be facing toward the heat source which, in this case, would be the engine. I can't tell from Taheoacr's photos whether the material used has reflective material on both sides or just one.
    #61
  2. Johnf3

    Johnf3 Long timer

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    So, if the filter element does not come off off the cage, how are you supposed to oil and clean it properly? I guess it is too late to worry about it now, because I am getting one anyway, but still, wondering why it was not designed with the filter to be removable from the cage.
    #62
  3. SidewinderX

    SidewinderX Hey, watch this!

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    That is the only reason that I did not order one last night....
    #63
  4. crankshaft

    crankshaft Guns are for pussies

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    So, why is the cage a hurdle for you? Soaking the filter in cleaner and then rinsing it out is impossible with a cage? I would rather deal with a cage than dirt in my engine.
    #64
  5. Johnf3

    Johnf3 Long timer

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    Me too, but coming from the real dirt bike world where all filter elements are removable, it sure makes it easier to deal with both the cleaning and the re-oiling--especially the re-oiling, where the general practice is to squeeze the excess oil out of the foam element. Sort of hard when it is attached to a rigid cage.

    Not going to be an easy process to service in the field.

    Like I said before, benefits still out weigh the drawbacks.
    #65
  6. crankshaft

    crankshaft Guns are for pussies

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    I know what cleaning dirt bike filters is like, I've had a few:D I see your point, wringing the oil out could be entertaining but I'm sure a method can be developed. I'm an HVAC guy, so I have a vacuum pump. I've always thought a vacuum bag would be a great method for oiling a filter. Might need to finally try it.
    #66
  7. Spark01

    Spark01 V-Twin

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    But still i think this foam filter is easier to clean than a more rigid type of airfilter.
    like a K&N/DNA/BMC flat panel filter or the DNA/MH airbox filter
    #67
  8. SidewinderX

    SidewinderX Hey, watch this!

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    Not really a hurdle. Just left some doubt in my mind.
    #68
  9. SidewinderX

    SidewinderX Hey, watch this!

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    Should work well. I have used this method on bearings with great success.
    #69
  10. crankshaft

    crankshaft Guns are for pussies

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    Cool, not as crazy sounding as I thought:lol3 Small hand vacuum pump might do the trick.
    #70
  11. tahoeacr

    tahoeacr Long timer

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    Sorry, I'm on the road til April. Didn't bring my laptop with the photos. In the picture I have it on the top and bottom. That's only cause I had a whole roll of the stuff. You only want to put on the bottom facing the engine.

    On a good note our rider got 10th in the main last week. The week before I join he didn't qualify for it. I must be bringing in the luck.
    #71
  12. Spark01

    Spark01 V-Twin

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    [​IMG]

    I got my filter today and have also some RC8 stacks, for the dyno session on 9 may :clap
    #72
  13. Michhub

    Michhub Major Medical

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    I can't quite read the stack P/N is it 6124104000 :D
    #73
  14. LocuL

    LocuL Gnarly Infantry

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    hi would these filters fit the rc8 or could it be done. my project is loosing weight where possible and this is very simple.
    #74
  15. knobbyjoe

    knobbyjoe Adventure and dirt rider

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    Spark01,
    Please give us a report. Expecially your thoughts on HP gain and "jerky" throttle response.

    This is the promotional stuff from CJ's site.
    http://www.cjdesignsllc.com/CPRairFilter.html<?xml:namespace prefix = o ns = "urn:schemas-microsoft-com:eek:ffice:eek:ffice" /><o:p></o:p>
    The most cost effective horsepower gains on the market. About 30.00 to 40.00
    Dlls per horsepower compared to 100.00 to 200.00 Dlls for an aftermarket
    exhaust.

    Dramatically reduces the jerky "On / Off" throttle response of the big twin.
    "Mountain roads and tight traffic become a joy again".

    Thanks KJ

    #75
  16. TheMuffinMan

    TheMuffinMan Forest Ranger Magnet

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    #76
  17. cjracer

    cjracer AWD please!!

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    The RC8 Stack or "Trumpet" as KTM calls it is shorter than the 990 ADV ones.

    Thinking is that the shorter stack should let it more air for higher HP#s.

    The Longer 990 ADv ones result in more torque.

    These will be here soon for testing.

    BTW,
    Air filters just showed up so I hope to start shipping out Fri and Sat.:clap
    #77
  18. Spark01

    Spark01 V-Twin

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    The orginal stacks for the 990 motor (Adv,superduke,SM/T/R) are the same
    The RC8 stacks with 2nd flies removed used in a airbox should give a gain starting from 6500rpm till limiter.
    But it doesn't loose torque down below.

    And the fun part is they cost allmost nothing, i paided 5 euro (6-7 US dollars).

    example from a superduke:

    http://www.superduke.net/forum/viewtopic.php?f=1&t=14265&start=625#p221658
    #78
  19. Spark01

    Spark01 V-Twin

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    The RC8 stacks fit the standard 990 throttle body soo the hole size in the base plate are the same.

    I measured the distance between the middle of the 2 holes and it is 12,6 cm
    So if the distance between the middle of the 2 throttle bodies from the RC8 are the same...
    And if you have more then 4cm distance between the throttle body and the frame...then it could fit??.
    #79
  20. Johnf3

    Johnf3 Long timer

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    No 950 filters yet. Two more weeks at least.
    #80