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power commander vs. closed-loop

  1. #1
    no can kneedown feralchimp's Avatar
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    Unhappy power commander vs. closed-loop


    Throttle response on the 701 is annoying at low- to low-mid RPMs, and runs crazy hot even when unflogged. Basic reading indicates this is the fault of super-lean stock fueling, to be addressed with a Power Commander. Subsequent reading indicates the closed-loop system will actively fight (and ultimately conquer) the Power Commander below mid-high RPM.

    I have a strong preference for leaving all the OEM emissions equipment on the bike, but kneecapping a motor like this one is...philosophically uncomfortable. Let us not forget (NOT forget) the burn risk to curious bystanders or children who may brush against the exhaust can after parking.

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    -Jared
    701 E/SM, Hyperstrada 821, Ninja 300

  2. #2
    Soul Rider Paul_E_D's Avatar
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    Re: power commander vs. closed-loop

    That cat reaches 700 degrees in no time. Definitely a public safety risk. Ditch it.

    Edit: I tuned mine with Tuneboy.

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    Last edited by Paul_E_D; 04-02-19 at 12:04 PM.
    Paul_E_D


  3. #3
    no can kneedown feralchimp's Avatar
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    Re: power commander vs. closed-loop

    Removed a few things from the bike today:

    power commander vs. closed-loop-img-2898-jpg
    power commander vs. closed-loop-img-2897-jpg
    power commander vs. closed-loop-img-2896-jpg

    But stopped short of adding any new fuel/air bits when I saw this:

    power commander vs. closed-loop-img-2895-jpg

    The bike had its first service about 1000 miles ago, at the dealer.

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    -Jared
    701 E/SM, Hyperstrada 821, Ninja 300

  4. #4
    no can kneedown feralchimp's Avatar
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    Re: power commander vs. closed-loop

    Improvement




    Sent from my iPhone using Tapatalk

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    -Jared
    701 E/SM, Hyperstrada 821, Ninja 300

  5. #5
    ^ It's my bike and my car tls25rs's Avatar
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    Re: power commander vs. closed-loop

    What is the list of things you have done to your 701?

    I have one but have done nothing but ride it, change the oil and the tires. Most of the use has been on track so low speed fueling hasn't really been an issue for me.

    Yes the pipe getting ridiculously hot is a concern to me but the volume of the bike is also a concern. I prefer to keep it quiet. I have heard a couple of bikes with this motor and an exhaust on them and they are significantly louder than I want my bike to be.

    Joel

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  6. #6
    no can kneedown feralchimp's Avatar
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    Re: power commander vs. closed-loop

    Glad to hear you've been tracking yours. Up until recently I'd done zero mods (aside from sumo wheels and kickstand), and haven't ridden it since starting to install this batch of parts. I totally share your concerns about noise, and am just crossing my fingers that the exhaust / dbkiller I ordered will fall somewhere below my personal "what an asshat" threshold. The odds are, I admit, 50/50 at best.

    Recently put on:
    - ABS dongle
    - deletes
    - that blinging oil filler cap

    Waiting to go on:
    - airbox, yoshi slipon, PC5 with ignition advance map
    - anti-vibe risers with steering damper
    - shift kit to reduce false neutrals

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    -Jared
    701 E/SM, Hyperstrada 821, Ninja 300

  7. #7
    ^ It's my bike and my car tls25rs's Avatar
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    Re: power commander vs. closed-loop

    I might be interested in more info on the shift kit to prevent the false neutrals. I've had a couple here and there but changed the way I shift to overcome the issue.

    What are the deletes and what are they supposed to gain you?

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  8. #8
    no can kneedown feralchimp's Avatar
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    Re: power commander vs. closed-loop

    Some people do the deletes (canister and SAS) because they're fanatical about simplifying the systems, or making space, or saving weight. I personally wanted to simplify subsequent install of the alternative airbox, and I wanted a configuration likely to best-match the fuel map I ordered.

    The shift kit will probably be the last thing to go in, because I'm in no hurry to remove the clutch cover.


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    -Jared
    701 E/SM, Hyperstrada 821, Ninja 300

  9. #9
    no can kneedown feralchimp's Avatar
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    Re: power commander vs. closed-loop

    Last weekend, did most of the new intake (everything except oiling the filter element) and installed the powercommander. The stock wire routing is so clean and well tucked away on this bike, there were more than a couple cases where I just wasn't finding the connections I needed to make. Then once I found everything, the "second 85%" of the job was trying to zip-tie stuff in a reasonable way. I hope it's ok to just perch the PC on top of the ECU, because the recommended install location was already taken up by the ABS dongle.

    This afternoon I did the Yoshi slip-on install and oiled the foam filter.

    The exhaust install is probably the best example of "easy if you know what you're doing" I've been through. I didn't, and initially installed the connecting pipe backward. I figured out it was backward when the retaining springs didn't need to stretch to reach the hooks, but the pipe fitting ridiculously loose should have been my first clue. :eyeroll: Eventually I got it on the mostly-right way, fired it up, and gave it a quick blip without the db killer installed. Pretty sure I said "holy shit" in the same motion as flipping the kill switch and reaching for the db killer packaging. Did I drop the set screw into the exhaust end cap like so many other dumbasses before me? Yes I did. Did I have to remove the slip on and shake the whole can around like an asshole to get the screw out? Yes I did. Was I ultimately successful in properly locating the db killer relative to the set screw? No I was not. I finally just used a leatherman and a deadblow hammer to jam the db killer far enough into the pipe that it doesn't wiggle, because sometimes it be like that. Maybe an actual mechanic will get to fix that someday, and I have the set screw waiting for them.

    Oiling the foam air filter was...not so bad. Kind of a mess, and not something I want to do again anytime soon, but I did it well enough that air will actually be filtered on its way through the intake.

    It's finally back to where I can ride it and get it inspected. Success!

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    -Jared
    701 E/SM, Hyperstrada 821, Ninja 300

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