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  1. #1
    IAMJUSTIFYD (OP)
    Junior Member IAMJUSTIFYD's Avatar
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    What does a power commander do?

    Exactly what does a power commander do? I have Leo Vince with baffles and no CAT, kn air filter but no pop on decel or anything. Does it do kinda what you tell it to do as far as if you're wanting more performance or better mpg or more get up and go?
    Sherry
    2007 FZ6

  2. #2
    Junior Member Gary in NJ's Avatar
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    Re: What does a power commander do?

    The exhaust system you are using tends to make the bike lean (you're pumping more air through the engine with the same amount of fuel). The Power Commander allows for more fuel to enter the engine. There are additional features such as advancing the ignition timing as well.
    Lifelong student of motorcycling. Current bikes: Naked '05 FZ6, LS650 Café Racer, DRZ400 Street Tracker

  3. #3
    Senior Member What does a power commander do? zixaq's Avatar
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    Re: What does a power commander do?

    The computer on your bike has a fuel map, which is less complicated than it sounds. Think of it as a lookup table. The computer looks at the current state of the bike and how much throttle you're giving it and provides the amount of fuel that the table tells it to. A Power Commander or similar interrupts that signaling pathway and changes it, letting you effectively replace the default fuel map with a custom one. This can rectify lean conditions from the factory or due to modified intake/exhaust, and can correct certain fueling issues (like the snatchy throttle on our FZ6), usually at the cost of fuel economy. It can also increase power, but that's usually a lesser effect than the better throttle behavior or matching fuel to an altered air system.

  4. #4
    Vrrroooooom! What does a power commander do? Motogiro's Avatar
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    Re: What does a power commander do?

    It should be noted that the Power Commander has less effect when the motorcycle has not been put on a dyno. The dyno measures rear wheel horsepower and uses a sniffer in the exhaust to give a qualified tuner the correct air to fuel ratios, torque and horsepower measurement to create an accurate and useful map that circumvents the OEM computer control. The PClll ex model will not do as wide a range of control that would create illegal emissions. The ex suffix is for the street legal PClll power commander . The PClll and PCV are actually track only fuel management devices and are technically not legal because they can and are often adjusted to not meet stricter state and federal emissions requirements. You can down load maps from tuned bikes that have the same exhaust and air filter mods. Those maps may be pretty close to your bike but dyno runs with a reputable qualified tuner are the way to go.. Unfortunately a good tune is going to cost $300-350.
    I believe the PClll manages strictly fuel while the PCV manages fuel and timing.
    If you can't fix it by hitting it with a hammer, it's electrical!

    Clif
    SoCal Hoon

  5. #5
    Professional test dummy yamihoe's Avatar
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    Re: What does a power commander do?

    What they said with the cautionary note that if you want to play with the maps you DO have the power to run incredibly rich or dangerously lean and you CAN cause some serious engine damage if you lean it out too far, and that’s not just short term, it can cause an issue yearrrrs later from a burnt valve or something.

    I will say, the pcv turned my FZ1 into the R1 I used to have. Which was awesome.
    2007 Fz1- stock as a block
    2002 R1- SOLD
    2005 JDM FZ6- custom exhaust, co mod, duel headlight mod, 17t front sprocket, airbox cutout, R6 front forks, R6 calipers, ss HEL lines, integrated signals, frame sliders, 50k Smiles!
    1995 YZF600R- SOLD
    1965 Mustang- SOLD
    2000 Mustang GT- 4.6 Windsor,,l.s. 3.73s ( Cobra DOHC BUILT TT swap in the works)

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