airbox deleted 950SE

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

  1. dogsslober

    dogsslober No neck tie, Ti neck

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    Thats not that daring:lol3
    #21
  2. buzybraza

    buzybraza Been here awhile

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    So because I only cut about half the stacks I get more grunt and more top end! :lol3
    #22
  3. pdxmotorhead

    pdxmotorhead Long timer

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    Based on my working on sprints and midgets, the key thing is the stacks move the power band, long stacks make the power peak at lower RPM shorter ones at higher RPM.. Smaller diameter stacks raise torque, larger diameter stacks increase horse power at higher pm (To a point its not magic...) You have to balance runner length against diameter.

    Typically you put the engine on the dyno and test say 4 sets of stacks ,, Map their performance, then you use the set that keep the motor on the power band at the RPM's the track demands of the car to keep it at speed.

    Dave
    #23
  4. pdxmotorhead

    pdxmotorhead Long timer

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    Here is something that's close to the same idea..
    this is a standard 32/36 Webber on a Nissan 1600.

    http://www.flickr.com/photos/33629139@N08/8439460347/in/photostream

    http://www.flickr.com/photos/33629139@N08/8440552766/in/photostream

    http://www.flickr.com/photos/33629139@N08/8439460949/in/photostream

    Fairly stock motor with headers, NISMO camshaft.

    The engine was only making consistent power between 4000 and 5000 with the webber alone.
    The velocity stacks lifted the whole power band and pumped the engine up nicely from 2500 to 4000, netting a really race-able power band from about 3000 to 5500 rpm.

    I included the filter pics for reference since its similar to the rottweiler.

    Cheers.

    Dave
    #24
  5. Mosseltje

    Mosseltje Alive

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    Short Answer: Yes

    Long answer: Below a movie about my SE through the woods after heavy rain.
    My SE has the MotoHooligan airbox (and a very old and weak battery.)
    At 6:14 minutes the puddle is too deep and it killed the engine.

    https://www.youtube.com/watch?v=goJWXDOtRQc
    #25
  6. ata

    ata expat in the jungle

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    that frame looks too clean

    seems never suffered too much mud:lol3, or you are just the number one cleaning it



    good work anyway and agree about the amazing performance without air box, looks like the bike´s in a hurry all the time, but here where I ride, ain´t an option
    #26
  7. Nosferatu82

    Nosferatu82 n00b

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    Hi guys, thinking about doing the same setup here. I would have purchased the darn thing but US to Europe shipping+import charges are insane. The Rottweiler system...well I can think of better ways to spend 200 bucks...

    I am thinking about getting the base plate (uncut) and the ITG filter along with grommets online. However, for the grommets I need the size. Since I am commuting on the bike everyday it is a hassle to take everything out just to measure. Do any of you guys recall the diameter of the holes?

    Help much appreciated.
    #27
  8. Boatman

    Boatman Membership has it's privileges ;-)

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    I didn't use grommets when I did mine. I carefully cut the foam rings from a stock air filter and glued it to the underside of the baseplate with adhesive.
    #28
  9. Nosferatu82

    Nosferatu82 n00b

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    That is even better!

    Thanks for the tips.
    #29
  10. keener

    keener Speed changes you.

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    ITG is made in Europe but you need a plate.

    Its very important to ensure you make good seal around the carbs/FI and around the filter. A little bit of dust can damage the valve seats ,cylinders coating.. Not worth experimenting in my opinion. May I suggest you order just the plate from SW7 or CPR with the seals.
    #30
  11. Boatman

    Boatman Membership has it's privileges ;-)

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    ITG sells the base plate for their filters so no issues with it fitting the filter properly. As for sealing the plate to the carbs,,, I test fitted a few different grommets and sealing rings and and found the best fit was the foam ring from the OEM filter. It's the perfect fit and has the right amount of "squash" when the stacks are installed. The bike I have this setup installed is kept in Vegas and only runs in the dusty southwest. In fact the dustiest conditions you could probably come across are running across the desert with 500 other machines participating in LA2Barstow2Vegas. The dust is so thick at times you have to stop and let it clear. The setup has proven to keep the intakes clean. Add a smear of grease for safety.

    Here is where I bought mine.... http://www.coastfab.com/megaflow.html

    Oh and FWIW..... a friend of mine had an SE that had one of the very first Rottweiler units installed properly. We were horrified when he pulled the filter to show me how easy it was to remove the filter for cleaning and the intakes were full of dust. I guess there was an issue with the very first base plates. When he called CPR, he was told user error and basically to go pound sand.
    #31
  12. Dustodust

    Dustodust Long timer

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    I like the SW foam filter setup but hate the noise
    so I built a resonance chamber, eliminates the noise, sounds more pleasant, and reduces exposure to rain and dust
    the rounded chamber enhances and deepens the sound as well as muffles it.
    Changes the rackety noise into a tuned performance sound.
    Also adds protection.
    I think it is just lame to run an exposed filter under the hood
    I rreally cant understand how anyone can stand riding with that racket in their face
    #32
  13. Yellow Pig

    Yellow Pig Allergic to asphalt!

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    Got any pictures of the chamber?
    #33
  14. GezwindeSpoed

    GezwindeSpoed Been here awhile

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    #34
  15. Mariel@teamcprfab

    Mariel@teamcprfab Adventurer

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    Dear Boatman, thank you for this but there is not a chance that we ever told anyone in any capacity to 'pound sand'. It is not in our DNA or business model whatsoever. Our history of customer care will attest to that and speak for itself.

    A little history; Out of approximately 4000 Rottweiler intakes in use, the very first 92 were machined from a carbon fiber board and a small amount had some issues. Any issue more than zero is a big deal to us so we scrambled and created a new injection molded base plate that would survive a nuclear holocaust. We then took great pains to contact any of our first adopters and replaced the base plate for free on our own dime. We felt this was an act of investment to the people who invested in us. Fast forward to now, our base plates are now 6061 pocketed billet aluminum with a Thermocoating applied for purposes of precise repeat-ability (less throw away parts internally) and the ability to offer crankcase plug kits and other things that people were asking for. This is the most rigid design to date and will last forever.

    On the ITG meme. Our relationship with them goes back many years from Chris Parker's time at Rod Millen Motorsports and the Toyota Pike's Peak program. We are the ONLY company on the face of the planet with a private label agreement with them. Through this we have painstakingly developed our own foam layer combination specifically designed for high dust and off road applications. This is shown in our blue middle layer. Fact; no one else offering similar products can have this although they they have in the past claimed that there is no difference to either make the sale or justify the effort. Many duplicates of our designs have shown up right here in ADV rider and some have set up shop and profited by trying to convince you otherwise. You are of course free to go any route you choose but when this discussion arises, and it does often, we hold the right to set the record straight when our efforts and reputation is being questioned.

    We completely understand that forums are a place to find work arounds and we have no issue with that whatsoever. It's life and it flatters us in some circumstances. It comes down to what your time is worth and we believe that if that is the direction that particular person is wanting to go, then most likely they would not ever become part of our Rottweiler family anyway.

    Thanks for your time and forgive us for our lengthy responses. We take this industry and our reputation very seriously and while it can be easy to throw comments into the wind about a subject, we are here, we are real people, and memes like this otherwise can do damage to people that work hard and care about this industry.
    #35
  16. Boatman

    Boatman Membership has it's privileges ;-)

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    When Sal called to discuss this issue he talked directly to Chris. There was never an offer to "hey, send it back and we'll take a look" or anything of the such. Chris just kept telling him there was no problem and he must have installed it incorrectly. Of course he wasn't told directly to "pound sand", but there was no customer satisfaction given either.
    #36
  17. Dustodust

    Dustodust Long timer

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    here is the first one, I now have a new tortoise shell shaped one for the FCR carbs :
    [​IMG]

    [​IMG]
    [​IMG]
    [​IMG]

    [​IMG]

    [​IMG]

    [​IMG]
    [​IMG]
    the top connects with Dzus fasteners and the bottom comes off with the velo stacks, it is fabricated from aluminum sheet metal with welded seams and insulated with heat shielding, takes a few seconds to remove. I would like to see Rotweiler or someone offer something like this for sale
    #37
    erigre likes this.
  18. Yellow Pig

    Yellow Pig Allergic to asphalt!

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    Very cool!

    Where is the air intake.
    #38
  19. mousitsas

    mousitsas Long timer

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    First pic, on top facing back
    #39
    Yellow Pig likes this.
  20. keener

    keener Speed changes you.

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    Nice work. I too dislike the sound.

    Don't you think the air intake is a bit too small?

    There are products out there used in construction for sound insulation. One side adhesive, very thin rubber pads that are incredibly effective. You can use those on the inside of your box.
    #40