TuneECU for 990 - got tunes?

Discussion in 'Crazy-Awesome almost Dakar racers (950/990cc)' started by jetpoweredmonkey, Oct 31, 2010.

  1. jetpoweredmonkey

    jetpoweredmonkey Rider of the Lost Empire

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    Thanks again, man. Great info.

    Did you get your ECU mapped at Moto GP Werkes? Seems to me I read a post somewhere about someone raving about that shop. I am going to scout around and see if I can find a tuner a little bit closer to home first. Now that I don't have to spend the cash on a Tuneboy, maybe I'll spring for the dyno...
    #41
  2. PowerCell

    PowerCell Manufacture

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    OK, I'm tiring of this. Firstly, you don't reduce power on an FI engine by restricting air supply. You just pull back timing and fuel. Simple...

    Secondly, I have looked at every map. I have them all...

    Lastly, I'm going to pass my FI crown on to you now. So all questions regarding FI I now leave for you to answer... I'll stick to tuning my bike and getting all these cables built. Good luck my friend, this thread is now yours...



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    #42
  3. tmex

    tmex Long timer

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    The main issue has nothing to do with the map. If it did, KTM would have fixed it long ago. There is no secondary air metering circuit for low speed operation which makes transitions from low RPM (idle) to mid throttle very lean and the bike stumbles. KTM controls idle air flow by keeping the primary butterflies cracked open. Simple calculus shows that the increase in airflow from a partially cracked condition to a more open position increases the area for air to flow very quickly. My speculation is that the injectors cannot respond rapidly enough to this condition and if they could the bike would react like a pogo stick.

    BTW, I own four KTM's. So I am not bagging on the brand.
    #43
  4. cyborg

    cyborg Potius Sero Quam Numquam

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    Oh yeah, cool :lurk
    #44
  5. Gluaisrothaí

    Gluaisrothaí Feckin' gobshite

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    Now that you have them all, try comparing the secondary throttle tables. You'll note that on the restricted maps I referenced, the secondaries begin to close at high RPM and WOT. Suppose you give me another reason than power restriction that you might want to do that at WOT where noise regs don't apply?


    It's not that I don't want to learn, on the contrary- I'm interested in your theory of how reducing volumetric efficiency through intake restriction is not a way of reducing power in an IC engine, given that that is exactly what the primary throttle plate does. Or a dirty air filter etc.

    Finishing a technical debate with "I'm tiring of this" smacks of someone who needs to be right in every situation BTW. This forum should encourage debate rather than outright assertions of "I'm right, you're wrong, it's my ball and I'm going home" when you meet a challenge. I'm not asking for the FI crown; with my engineering hat on I'm assessing the data available and drawing a different conclusion than you are on a point where you made what I believe to be an incorrect assertion.


    BTW I run the -R map in my '09 990. Tuneboy install. I'm looking forward to the extra functionality of the Tuneecu program.
    #45
  6. nevermind

    nevermind sLOW Rider

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    agreed...
    #46
  7. PowerCell

    PowerCell Manufacture

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    I'm not interested in debate. I'm prefectly happy to be wrong on all things. I'm satisfied to build cables and quietly watch from a distance.

    It's your ball, play nice...


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    #47
  8. PowerCell

    PowerCell Manufacture

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    To anyone interested in one of my programing cables for the TuneECU software, the first and second round of production have sold out, and I'm current putting together a third round. If you want one for yourself, don't hesitate to send me a PM with your full shipping information, and I will send you payment details. Cost is $34.75 delivered here in the US, or $42.78 for international shipping. I'll try and respond to your inquiries as quickly as possible, but remember that this is a not for profit offer so give me a little bit to follow up.


    [​IMG]
    #48
  9. PowerCell

    PowerCell Manufacture

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    Wow! Third round is now sold out, so I'll just keep building more. It's great to see so many getting involved in this. I can only immagine the knowledge base for FI solutions on the 990 will grow exponentially. And now everyone can participate... most excellent! :thumb


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    #49
  10. twodollardoug

    twodollardoug the calimesa kid

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    I totally agree! hopefully people will share there experiences. good and bad, with the changes they make.
    #50
  11. UngaWunga

    UngaWunga Mosquito bait

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    Cool. Has anyone been able to resolve the touchy throttle?
    #51
  12. tahoeacr

    tahoeacr Long timer

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    Not a problem:evil . I don't know squat about TuneEcu but if it works as well as Tuneboy there are two different ways to "Get er Done" depending on your tuning abilities. At least it has a better name:rofl .
    #52
  13. Gluaisrothaí

    Gluaisrothaí Feckin' gobshite

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    I have a map in my -09 A that's based on an -R map modified for Akra pipes and with some extra fuel low down in the L1 and 2 maps. It works reasonably well for me, I get a very consistent 37.5 US MPG running 75-85, and I've been happy enough for the last 10K not to mess with it more.

    I'm happy to share, although I wouldn't try this in anything other than an -09 or newer due to some problems I've seen with immobilizer settings and the fact that the -09s on have different heads and cams- if anyone wants to try it, or at least look at it I can forward it on. I'm glad to see that TuneEcu and Powercell's cables have made this stuff more accessible.

    The nice function with TuneEcu vs. TuneBoy is the ability to download your own map and use it as a baseline (F6 toggle compare function) against any mods you want to make. Good for peace of mind and to go backward if you need.
    #53
  14. twodollardoug

    twodollardoug the calimesa kid

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    so whats secret tahoeacer? do tell....BTW you should download it (IT's FREE). and give er a peek.
    #54
  15. a$$hole

    a$$hole Long timer

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    So let me get this straight. All I need to do is download TuneEcu and get a cable then I can remap my bike as many times as I see fit? Does the bike computer come out of the bike easy or do I need to relocate my desktop to the garage for this? My wife is going to hate you guys!:lol3
    #55
  16. cyborg

    cyborg Potius Sero Quam Numquam

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    Hey Jeff, gives us another thing to try eh? :lol3

    One thing to mention for folks new to ECU mapping, if you're not wired up for recording you bikes sensors for how the bike has changed after mapping and don't have handy access to a dyno, you're left with seat-of-the-pants impressions of the map changes. Have to be carefull not to go too lean.
    #56
  17. twodollardoug

    twodollardoug the calimesa kid

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    no access to a laptop A-hole?
    #57
  18. a$$hole

    a$$hole Long timer

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    Unfortunatly no. My desktop has been all I ever needed until now. Its only mission in life is for porn and other internet stuff.:lol3 Maybe I can get a piece of shit one at a garage sale or something for super cheap.
    #58
  19. grinns

    grinns Semper Fi

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    I saw your little thing you had going on under the glove box thing. Did you wire directly to the sensors? I was going to investigate logging through the ECU itself to a laptop.
    #59
  20. cyborg

    cyborg Potius Sero Quam Numquam

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    Yes, I had it hard-wired to 8 signals, in wires near the ECU. (Tach/RPM, both TPS, both MAP, Atmospheric P, both switching HEGOs) All 0-5v signals except the RPM, which was ~11V FM. Plus had the main wideband O2 sensor logger.

    Used a borrowed Innovate wideband and 4 channel data logger from Tahoeacr to be a rolling dyno mule, while using Tuneboy maps Tahoeacr tweaked & tuned from my data runs. Worked pretty well. Ideal would be dual wideband logger (too much $$). I had to switch between front and rear cylinders. I still have the sensor harness in the glovebox if I ever get my hands on another data logger.

    Not sure how many of those signals you can get from the ECU through the TuneECU OBD2 interface. Anybody know? I'll be trying it out in a month or so when I can ride again.
    #60