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Thread: Fun with mapping.

  1. #46
    apriliaforum expert pete roper's Avatar
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    Who cares? I must have the fastest goddamned Griso on the planet!





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  2. #47
    apriliaforum expert pokeyjoe's Avatar
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    Quote Originally Posted by pete roper View Post
    Who cares?
    Good question. If it's a hobby and no more, then have at it. It sounds like its a bit unhealthy, though. Especially when it moves from forum to forum (like that would make a difference in the outcome). Chin up, enjoy yourselves and agree to disagree, I guess.
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  3. #48
    apriliaforum expert Gabro's Avatar
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    Quote Originally Posted by GuzziOrDeath View Post
    Yes & no. The PCV does as you say, time it's injector pulses based in signals from the ECU, but it uses it own map to calculate the pulse width and it ignores the pulse width times from the ECU.
    totally wrong.
    PC map is only a "correction map". Let me try explain with an exhample:

    Suppose that at given RPM and TPS the ECU fuel map says "10ms opening for the left injector" and "8ms opening for the right injector".
    Says the PC correction map value is "+5" at that RPM/TPS, it will add roughly 5% in injector squirting time in both cylinders.
    That means 10ms+5% for the left injector and 8ms+5% for the right one... So the balancing in fueling for the 2 cylinders is still the one that the ECU says, but proportionally altered by the PC map.
    Aprilia bikes ECU tuning and reflashes since 2004!
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  4. #49
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    Quote Originally Posted by Gabro View Post
    Suppose that at given RPM and TPS the ECU fuel map says "10ms opening for the left injector" and "8ms opening for the right injector".
    Says the PC correction map value is "+5" at that RPM/TPS, it will add roughly 5% in injector squirting time in both cylinders.
    That means 10ms+5% for the left injector and 8ms+5% for the right one... So the balancing in fueling for the 2 cylinders is still the one that the ECU says, but proportionally altered by the PC map.

    Ahh. Thanks. ka-ching. That explains a niggling thought I had. It also re-inforces why the PCV I had grossly overfuelled my Griso. The map in the ECU has been modified to add more fuel by the vendor, and the correction map can only be trimmed by the autotune that samples from a single sensor. Perhaps if the map in the ECU had been better thought out, and then Griso's exhaust allowed for sampling with a dual channel autotune, the result may have been better.

    It's a moot point now. GuzziDiag allows for easy (free) adjustment of the map, and the PCV is not required.

  5. #50
    apriliaforum expert Gabro's Avatar
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    PCV overflued your griso maybe becouse you've been not able to proper set and/or use the autotune module.
    Aprilia bikes ECU tuning and reflashes since 2004!
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  6. #51
    apriliaforum expert Gabro's Avatar
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    Quote Originally Posted by GuzziOrDeath View Post
    It's a moot point now. GuzziDiag allows for easy (free) adjustment of the map, and the PCV is not required.
    Guzzidiag like TuneEcu are powerfull tools, but needs an experienced user to be effective.
    Any person not understaing what's going on should just flash known working maps. After that, a PC is still the better tool for the medium user in order to get a spot-on fueling.
    Aprilia bikes ECU tuning and reflashes since 2004!
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  7. #52
    apriliaforum expert pokeyjoe's Avatar
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    ad nauseam...
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  8. #53
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    Quote Originally Posted by Gabro View Post
    PCV overflued your griso maybe becouse you've been not able to proper set and/or use the autotune module.
    Totally wrong.

  9. #54
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    Quote Originally Posted by Gabro View Post
    Guzzidiag like TuneEcu are powerfull tools, but needs an experienced user to be effective.
    Any person not understaing what's going on should just flash known working maps. After that, a PC is still the better tool for the medium user in order to get a spot-on fueling.
    Couldn't agree more re GuzziDiag, but disagree re Powercommander, especially with the 8V engine.

  10. #55
    apriliaforum expert SF2DieHard's Avatar
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    Quote Originally Posted by Hellgate View Post
    For what it's worth I'm interested as there are so many hours in a day to read forums.

    Besides, if I joined a Guzzi forum it would take years for me to build any respect at all. I mean look how long it took me to garner any respect at all here. Geez..

    yeah right.
    hush up and ride your Guzzi. (That's what I'm doing Saturday - Mulholland)
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  11. #56
    apriliaforum expert pete roper's Avatar
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    Well, today I rode up to Sydney, prior to Goulburn, at least at the time I set off, I was unlikely to meet the wallopers or any kangaroos so the first sevent Km was a good hard flog travelling between 140-160 for a lot of it. From Goulburn to the warehouse in Millperra its all boring freeway where you can't go more than 120 kph but its virtualy to the door of the importer. Despite the harder riding that I usually would do in the earlier part of the ride the bike returned fuel economy about 12% better over the distance. Impressive. It also fuels up damn near perfectly throughout the range.

    Sorry, I've never seen an 8V do that with a PCV/AT set-up. Just sayin'

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  12. #57
    apriliaforum Junkie
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    This place is fun! Interesting reading Pete.

  13. #58
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    " I rode up to Sydney, prior to Goulburn,"
    Peter if that is from Bungendore through Tarago it is a really great ride.
    I even saw 150 on the Griso on the way down to have the Cark replaced.
    Scenery is beautiful, and on a weekday no other vehicles.

    Harry

  14. #59
    apriliaforum expert pete roper's Avatar
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    Yup, that's the road. You have to be a bit careful after you leave Lake George because of the 'roos and there is that 8km straight stretch just before Wakefield Park raceway where the wallopers like to lurk in the trees but most of the rest of it is real 'Guzzi Country' with good visibility for both wildlife and wallopers. Its part of my 'Test Track C' I use after major rebuilds.

    Pete
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  15. #60
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    Having spent my entire life in the states I did a search for the definition of the word "Waloper". I found a few. The first : Uniformed cops are generally known as 'wallopers' or the second : A Scots word meaning a penis, usually large and floppy. I am guessing it was the first. At least I hope.........

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