Installing a CPR air filter on my 990

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

  1. Helajames

    Helajames Adventurer

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    Figured it out

    Jim
    #41
  2. moto-treks

    moto-treks Back Home

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    The PVC is made of two parts screwed together with a ball in between. All you have to do is put a wrench on each end and unscrew it. Once its unscrewed you will have two halves so just mount the baseplate in between when you screw the halves back togeather. Make sure you keep the end that was connected to the engine on the outside of the base plate when you install it.
    #42
  3. Ramv

    Ramv Been here awhile

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    Will the filter compromise water crossing depth?

    This one was over my knees standing (when I walked back across to help some of the MX bikes across) and over the header on the SE,
    [​IMG]

    Is that a fair assumption?
    #43
  4. biggus

    biggus Been here awhile

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    My Exact Question as well.

    [​IMG]
    #44
  5. cjracer

    cjracer AWD please!!

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    If you have a Uni Pre-filter (removed Snorkel), this setup is no lower than that. Of course if you fall over it won't matter anyways.

    [​IMG]

    The gage that I use is the bottom corner of my Seat "V". Or, if the front fender is under water you are getting very close. Depending on how tall your bike is, that's pretty deep. Slow and steady as to not to cause too large of a bow wake.

    On my 950 ADV S, the base plate is about 35" high. So, if I walk a water crossing and my nuts get wet..... I might want to try and find a way around or inflate some pontoons. :freaky
    #45
  6. olec

    olec Rookie

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    Hi guys!

    How is the intake noise with the Rottweiler filter? I ask because I have a K&N filter in a superflow box and It barks pretty bad at me between 4000 to 4500 rpm. I can live with it, but always looks for better options. And a K&N filter isn't giving me the confidence when talking about water / mud etc.
    Oh... I got about 12 more hp's on the rear wheel with this filter plus some dyno time. The filter alone added 7-8.

    Thanks!
    #46
  7. mousitsas

    mousitsas Long timer

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    superflow box? :ear
    #47
  8. olec

    olec Rookie

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    Yes, from motohooligan.

    [​IMG]
    #48
  9. Stumpalump

    Stumpalump Been here awhile

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    What is the noise like? Pleasant, loud, drone?
    #49
  10. moto-treks

    moto-treks Back Home

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    I'm guessing it would be about the same. Just get past 4500 ASAP :lol3

    I don't get much noise while cruising down the blacktop (in that range) but then again, I wear earplugs :clap
    #50
  11. Stumpalump

    Stumpalump Been here awhile

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    How about compared to stock?
    #51
  12. moto-treks

    moto-treks Back Home

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    Oh - there is more noise than stock that's for sure.

    However, I've been riding off road for the last 3 days without earplugs and there is more noise but not unbearable.
    #52
  13. Goss

    Goss LC8 Adventurer

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    I am considering this mod but wondered about riding for extended periods in rain ?

    Being that the filter is oiled should prevent water from saturating the filter ?
    #53
  14. cjracer

    cjracer AWD please!!

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    Input in orange.
    #54
  15. moto-treks

    moto-treks Back Home

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    So, today when I was riding, I played around with the intake noise. It me, it's the loudest when you have the throttle wide open. If you are just riding down a flat road at 4000 - 5000 in 4th or 5th then you don't even hear the intake. Drop a gear or two and open it up and you will hear some noise.
    #55
  16. sstewart

    sstewart Long timer

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    I'm not happy with the sound. It sounds like your moms Caprice with the breather lid upside down.:eek1
    #56
  17. moto-treks

    moto-treks Back Home

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    I've sent my map to Chris at CPR Fabrication so it should be available for all you wanting/waiting for a 2009 - 12 990 map for this great upgrade!

    My '10 990ADV has 2 into 1 Remus Revolution and the SAS removed.
    #57
  18. moto-treks

    moto-treks Back Home

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    Received a new base plate for the CPR filter last week :D Thanks Chris :clap :clap

    [​IMG]

    [​IMG]

    Looks stronger. The crankcase breather hole has changed it's location as well as the temperature sensor.

    Now, I just need to a day free to install it :D
    #58
  19. Sporting Wood

    Sporting Wood I

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    What was wrong with the old ones?
    #59
  20. Spark01

    Spark01 V-Twin

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    The old ones needed to be modified to fit if you still had the linkage of 2nd throttle in place.
    The new one has also improved strengh.

    CPR gave a offer for a new base plate only for the transport costs if you had a base plate received before a certain date
    I received mine yesterday :clap
    #60