airbox deleted 950SE

Discussion in 'Crazy-Awesome almost Dakar racers (950/990cc)' started by buzybraza, Jan 31, 2013.

  1. buzybraza

    buzybraza Been here awhile

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    Oddometer:
    387
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    So, I decided to get rid of the airbox on my 2008 950SE with about 7k miles.
    This is what I removed:
    <a href="http://s1339.beta.photobucket.com/user/Ricardo_Fraga_Travassos/media/preairbox2_zps8556ea86.jpg.html" target="_blank"><img src="http://i1339.photobucket.com/albums/o720/Ricardo_Fraga_Travassos/preairbox2_zps8556ea86.jpg" border="0" alt="airbox2 photo preairbox2_zps8556ea86.jpg"/></a>

    An inmate here sent me an aluminum base plate, which I used as a template to make my own:
    <a href="http://s1339.beta.photobucket.com/user/Ricardo_Fraga_Travassos/media/baseplates1_zps0bf2757a.jpg.html" target="_blank"><img src="http://i1339.photobucket.com/albums/o720/Ricardo_Fraga_Travassos/baseplates1_zps0bf2757a.jpg" border="0" alt="baseplates2 photo baseplates1_zps0bf2757a.jpg"/></a>

    Then I cut the trumpets to fit inside the &#8220;sausage&#8221; JC30 from ITG. I probably cut too much off&#8230;
    <a href="http://s1339.beta.photobucket.com/user/Ricardo_Fraga_Travassos/media/cutstacks1_zpsd203cc94.jpg.html" target="_blank"><img src="http://i1339.photobucket.com/albums/o720/Ricardo_Fraga_Travassos/cutstacks1_zpsd203cc94.jpg" border="0" alt=" photo cutstacks1_zpsd203cc94.jpg"/></a>

    Plate mounted on the bike:
    <a href="http://s1339.beta.photobucket.com/user/Ricardo_Fraga_Travassos/media/baseonbike1_zps4bbfcde0.jpg.html" target="_blank"><img src="http://i1339.photobucket.com/albums/o720/Ricardo_Fraga_Travassos/baseonbike1_zps4bbfcde0.jpg" border="0" alt="baseon1 photo baseonbike1_zps4bbfcde0.jpg"/></a>

    Filter on:
    <a href="http://s1339.beta.photobucket.com/user/Ricardo_Fraga_Travassos/media/filteron1_zps415c3dff.jpg.html" target="_blank"><img src="http://i1339.photobucket.com/albums/o720/Ricardo_Fraga_Travassos/filteron1_zps415c3dff.jpg" border="0" alt="itg1 photo filteron1_zps415c3dff.jpg"/></a>

    Ready to run:
    <a href="http://s1339.beta.photobucket.com/user/Ricardo_Fraga_Travassos/media/filteronwskin2_zps1a93b395.jpg.html" target="_blank"><img src="http://i1339.photobucket.com/albums/o720/Ricardo_Fraga_Travassos/filteronwskin2_zps1a93b395.jpg" border="0" alt="itgskin1 photo filteronwskin2_zps1a93b395.jpg"/></a>

    How does it run? Like a bat out of hell !!! It is a kick ass setup for power! Not as good for dust protection or submarine capabilities!

    Jetting:
    Factory Pro needles in the second position.
    175 mains
    Mixture screws at 2.5 turns out
    The rest is stock.
    #1
  2. mousitsas

    mousitsas Long timer

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    Correct me if wrong, but in the way you have cut the trumpets, their tops will be pressed against the underside of the filter. Maybe this reduces a fair bit the breathing?
    #2
  3. buzybraza

    buzybraza Been here awhile

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    No, the reason I cut the trumpets is so they don't touch the filter.
    At the closest spot to the inside of the filter cage there is about 15mm clearance between the trumpet and the filter.
    And trust me on this one, the bike is not breathing any less than it was before with the airbox!
    #3
  4. mousitsas

    mousitsas Long timer

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    According to my measurements, the clearance between the trumpets and the seat pan on the SE is about 25mm, the filter itself is about 20mm thick, so how is this possible?

    I am also thinking that maybe a bigger plate (wider and longer) would help to totally eliminate the flow of hot air from the engine underneath (if any).
    #4
  5. buzybraza

    buzybraza Been here awhile

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    Your measurements could be wrong, as mine could also be wrong. I did not do any kind of precisely scientific measurements I did it "by feel". I am happy with my setup. My trumpets do not contact the airfilter and there is space between the two. Thanks for your opinion!:D
    #5
  6. mousitsas

    mousitsas Long timer

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    You are welcome! I am also thinking to do the same, but this trumpet thing has put me off so far...
    #6
  7. buzybraza

    buzybraza Been here awhile

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    Yes, I did not like the idea of cutting mine either. That is why I tried to cut as little as possible. Some other folks have done the cut differently, just a straight cut at 1 inch measured from the bottom of the trumpets. This way both trumpets are the same. I don't know... if I eventually feel anything funky I can always cut more and even it out. I only have a couple days riding this new setup. Time will tell....
    #7
  8. bigkuri

    bigkuri Old-timer

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    Looks really good! :clap

    What would happen if you built up a plastic "curtain wall" around the whole thing, that goes up a few inches in order to preserve some wading depth of the bike?
    If deep fording then the bike is moving; bow wave, so most of the water height is on that leading edge, and I think there is plenty of clearance, so the plastic wall could theoretically be similar height to the snorkel?
    #8
  9. buzybraza

    buzybraza Been here awhile

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    Obviously, there are lots of things that can be done, but at that point I would just put the stock airbox back on. I only did this mod because it was easy to do, just a flat piece of 3mm thick aluminum.

    Also I live in southern California, mostly desert. Even if I were to do deep water crossings, I still think my setup is going to be more "waterproof" than most dirt bikes anyways...... :ricky
    #9
  10. Sporting Wood

    Sporting Wood I

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    Congrats:clap
    #10
  11. charlie264

    charlie264 Long timer

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    I've got a feeling that the RC8 and S Duke velocity stacks are shorter than stock SE, seem to remember someone upgraded the Adv/SE for RC8 ones.

    Might be worth a look, :eek1
    #11
  12. KarimADV

    KarimADV Adventurer

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    What about if you find some kind of water? I mean a river crossing or a offroad dirt?

    Won't you kill your engine with this setup?
    #12
  13. buzybraza

    buzybraza Been here awhile

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    I don't think so. I believe my intake is still higher up than most dirt bikes with airboxes under your butt. Plus as I said in post #9 river crossing are not my concern.

    As for off-road dirt (I think you mean dust) you are right, I am not as protected against dust. That is why I will be running an oiled filter skin over the air filter even though I use my 950 on the asphalt.

    If water or dust were a big concern for me I would NOT have done this modification.
    #13
  14. buzybraza

    buzybraza Been here awhile

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    :thumb
    #14
  15. KarimADV

    KarimADV Adventurer

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    I was meaning mud ( sorry but english is not my motherlanguage ) but you answered anyhow :)
    #15
  16. Lc8grrr

    Lc8grrr Vtwin madness

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    I dont think they fit because the SE is on carbs not FI.
    #16
  17. bikyto

    bikyto Dans le doute...gaz!

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    Yes they are MUCH shorter. I would say half the height.
    I had them on my 990. But they vibrate out as they do not lock in properly. So beware and modify the locking aspect or your whole airbox will be loose......:huh
    #17
  18. buzybraza

    buzybraza Been here awhile

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    I thought that too, but was told the fuel injected stacks don't go into the carbed version. I didn't check it for myself, has anyone out there????
    #18
  19. buzybraza

    buzybraza Been here awhile

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    Thanks, I will stay put and leave it as in my original post! :thumb
    #19
  20. LocuL

    LocuL Gnarly Infantry

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    By Sakurama┬┤s thread i dare to say that
    Longer stacks : More grunt
    Shorter stacks: More topend

    :norton
    #20