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. CPRFAB

    CPRFAB Banned

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    A customer alerted us to this thread and we wanted to let everyone know that this MAP sensor issue has been fixed early on. For some reason our test bikes had more than enough wire length to meet up but some bikes do not. Probably a difference in who was making the harnesses. We have since moved the map sensor to the front of the base plate where A: It cannot interfere with the throttle plates if installed improperly and B: The wire loom will easily reach it. All of our dealers have these models now. (We also stopped putting those impossible to remove stickers on the plate, sorry about that!)

    Moto-treks, thank you for posting this how to and the kind words. It still thrills us to see when our customers find such great results from our Rottweiler Filter. Be safe and most of all, have a great ride!
    #21
  2. BykBoy

    BykBoy Meshuganeh

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    13% improvement on HP and 15% on Torque! Very impressive. :clap:clap:clap

    So.... you gonna share your custom map on TuneECU? :ear :deal
    #22
  3. Nut Clutch

    Nut Clutch was Steve Lavigne

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    Moto-Treks, I am really curious how you are finding the low to mid throttle fueling after having it tuned. I have been considering taking my bike to Nels.
    #23
  4. moto-treks

    moto-treks Back Home

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    Yes, two wheel dyno works run by Nels. When I was there he recieved a call from Redline so he is now going to be tuning their AMA super bikes.

    I don't see a need for a heat shield. I know it may help gain some more HP but I really don't need anymore. The 990 had tons of power before and now it has butt loads :D

    The graph above is not stock compared to the CPR, its the CPR with the stock AKRA map compared to a custom map. I'd say just adding the CPR had a simialar gain over stock. I would have been happy with just the AKRA map but I wasn't sure if the mapping was right for this setup. As it turned out, the 990 was very happy with the standard AKRA map, it's just more happy now :thumb
    #24
  5. MAXVERT

    MAXVERT OG on da OC

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    Great thanks for the info.

    Do you have any mpg numbers yet ?

    Max
    #25
  6. moto-treks

    moto-treks Back Home

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    41 mpg the first 150 miles, 40 the next 200. Prior to this mod I was getting between 40 - 43
    #26
  7. moto-treks

    moto-treks Back Home

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    The 2010's never had the knotchy low end throttle response like ther early models. I installed the 2011 R map and it was even smother. Right before leaving to see Nels I loaded the 2011 AKRN map and it was also smooth. Give him a call as he has worked 990 before and may have a solution - but hurry, he'll e at Laguna Seca soon.
    #27
  8. moto-treks

    moto-treks Back Home

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    Ya just may see it it I ever stop riding her long enough to get a copy :evil
    #28
  9. moto-treks

    moto-treks Back Home

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    That would sure make it easier to install as you could skip the whole cut the wires and add 5 inches step :thumb
    #29
  10. BykBoy

    BykBoy Meshuganeh

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    :thumb:thumb:thumb
    #30
  11. moto-treks

    moto-treks Back Home

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    Just can back for riding 200 miles in the dirt. The bike performed flawlessly - power was smooth and very controllable with no low end snatchyness. I think I may drop a tooth (46 -> 45) on the rear when its time to change the sprocket a result of this modification.
    #31
  12. MAXVERT

    MAXVERT OG on da OC

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    Well you spent the time and $$$ to get this tuning together.

    I'd be happy to pay for a copy to help you off set your costs.

    Max
    #32
  13. moto-treks

    moto-treks Back Home

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    Now that I'm home I just need to get some time to hookup TuneECU - I'll interested to see what was changed from the standard Akrapovic map.
    #33
  14. Misery Goat

    Misery Goat Positating the negative Super Moderator

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    Do these things work on the 950s?
    #34
  15. moto-treks

    moto-treks Back Home

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    #35
  16. Misery Goat

    Misery Goat Positating the negative Super Moderator

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    Thanks! I was considering going the pre-filter route but this seems like a better option to me.
    #36
  17. Sbeau

    Sbeau newoldguy

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    I did basically the same mods to my Superduke, installed the CPR Rottweiler intake, removed SAS, removed secondary butterflies and shafts, added RC8 velocity stacks, O2 eliminators, and FMF Apex exhaust. I plugged the breather hole in the CPR base plate and routed my breather hose to a small filter instead of dumping oily fumes back into the intake. Tuned with TuneECU and pulled 121hp and 75.5 torque on the dyno. Smoothed out low end jerkiness (combined with a G2 throttle tamer), improved rideability greatly, revs quicker, and absolutely screams to redline. Like the original post said, saved a bunch of weight too, all the smog crap weighed 10lbs.

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    #37
  18. adiablolex

    adiablolex Lost again

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    It is, I ran a prefilter with a DNA and H2W kit for 2 years and although a really good package altogether, the CPR is just awesome!!!
    Very easy to install, jetting is pretty straightforward and easy to clean.
    Power increase is very noticeable and for some reason, my fuel economy has gotten better :huh

    ...now if it only cooked and did the dishes....:lol3
    #38
  19. Johnf3

    Johnf3 Long timer

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    The CPR set up is so much better I don't they are even comparable. The pre filter clogs up in one day in dusty conditions and is a restriction that takes away power. The CPR is one of the best aftermarket pieces I have added. It is really a nice upgrade.
    #39
  20. Helajames

    Helajames Adventurer

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    How did you install the PVC ball valve on the CPR plate, cannot find any instructions for disassembly or mounting.


    Thanks,

    Jim
    #40