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ScuRoo

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    What [music] do you listen to? Share your favs

    in Special place for banter and conversation

    Posted

    "Let not any one pacify his conscience by the delusion that he can do no harm if he takes no part, and forms no opinion. Bad men need nothing more to compass their ends, than that good men should look on and do nothing. He is not a good man who, without a protest, allows wrong to be committed in his name, and with the means which he helps to supply, because he will not trouble himself to use his mind on the subject."
    - John Stuart Mill (1806 - 1873)

    • Like 1
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    Fuel economy variatons with different fuels

    in Special place for banter and conversation

    Posted

    https://www.intechopen.com/chapters/41889

    IMG_6179.jpeg

    Abiogenic Deep Origin of Hydrocarbons and Oil and Gas Deposits Formation

    "The theory of the abiogenic deep origin of hydrocarbons recognizes that the petroleum is a primordial material of deep origin [Kutcherov, Krayushkin 2010]. This theory explains that hydrocarbon compounds generate in the asthenosphere of the Earth & migrate through the deep faults into the crust of the Earth. There they form oil & gas deposits in any kind of rock in any kind of the structural position (Fig. 1). Thus the accumulation of oil & gas is considered as a part of the natural process of the Earth’s outgrassing, responsible for creation of its hydrosphere, atmosphere & biosphere. Until recently the obstacle to accept the theory of the abyssal abiogenic origin of hydrocarbons was the lack of the reliable & reproducible experimental results confirming the possibility of the synthesis of complex hydrocarbon systems under the conditions of the asthenosphere of planet earth."

    Fuel economy variatons with different fuels

    in Special place for banter and conversation

    Posted

    On 11/26/2023 at 12:05 AM, LowRyter said:

    Where the guy is right is regarding the "scarcity" and economics of it.  We all know it's largely controlled by OPEC and the oil companies.  It appears we will run out of use for it as a fuel before we literally run out of it, given the cheap availability of sustainable power coming on line.   He makes another point about other commodities as well.  Given that he was talking about economic and geopolitical policies in the 1970's, he's been proven correct.  

    Yup

    It’s been recently discovered an estimated one trillion cubic feet of natural gas 30km off the shore in the Gaza Marine field.

    Clearly

    There’s no such thing as a coincidence

    • Thanks 1

    Acceleration Enrichment Map-2004 Rosso Corsa

    in Technical Topics

    Posted

    On 11/17/2023 at 12:57 AM, Meinolf said:

    Hi,

    I fully agree with above. The main issue with the OEM BINs and their fuel values is the lacking synchronisation of the lambda (AFR) values between the 2 cylinders. If lambda is different between the cylinders at a given operating point the engine will not run as smoothly and efficient as it could in non-closed loop mode. If it's in closed loop the slow OEM lambda probe excerbates the discontent as differing lambda values are reported to the ECU from one combustion cycle to the next. It goes crazy trying to cancel out countermanding values.

    Evening out the lambda values between the cylinders at any given breakpoints will achieve 95% of what can reasonably be achieved. Everything else is cream on top. And as the time needed for either is inverse (5% getting the lambda synchronity right/95% to for the rest),

    Plus, this approach fits best to the OEM ignition values. I have no means of checking them, but guess/hope that Mandello knew better/had the required setup, to get these right.

    Cheers
    Meinolf

    Appreciate the endorsement Meinolf.

    That settles it. Thank you gentlemen.

    Moto Guzzi V100

    in Newer models

    Posted

    At first glance one might be dismissive

    … except for recalling an interesting conversation I had with a well known Guzzi guru in Australia more than 18 months ago about the future LeMans model where he wryly quipped, “You might be surprised… you might find it may be electric.” 

    😳
     

     

    • Like 1

    What [music] do you listen to? Share your favs

    in Special place for banter and conversation

    Posted

     

    Riding gets the soul soaring a bit like like music can

    Years ago I had over a week with mates bonding riding my ScuraR from the Atlantic (Biarritz) zigzagging from France to Spain up & down over the Pyrenees mountains to the Mediterranean

    There’s something quite special & soul atmospheric when riding higher ground - a life forming experience I still carry with me

    Any of you fella’s had a ride like that?

    • Like 2

    Acceleration Enrichment Map-2004 Rosso Corsa

    in Technical Topics

    Posted

    IMG_5222.jpeg

    For those wondering whether you have a 15M or a 15RC ECU - it’s very simple to identify. Don't bother looking at the ECU & unpeeling labels under labels & scratching your head or arse.

    a) Look in the mirror instead. If you’re a Yank (& don’t possess a passport) you have a 15M ECU USA imported V11. And simply move along nothing to see here same with owners of the earlier V11 sans O2 models.

    Don’t forget this is still an international forum fella’s… it was only the later model European V11’s (& other exported to countries) which had the upgraded 15RC ECU which had additional Closed Loop adaptability.

    b) If not sure you’re a Yank - get on your knees & look for a O2 sensor as I’ve circled in docc’s diagram above. If your V11 comes equipped with an O2 sensor inserted - you can be 99% confident your ECU is the 15RC closed loop adaptive version. (The 15RC was not exclusively for the V11 but was also utilised on other Guzzi O2 sensor equipped models. The base map was just tailored to suit those other models).

    c) There’s plenty of opinions from those that don’t own V11’s with O2 sensor closed loop adaptability - these opinions seem to veer towards disabling the O2 sensor as they are only simple narrow band sensors designed for fuel economy or emissions only &/or add unnecessary complexity etc etc.

    I disagree completely with these notions. The 15RC closed loop adaptability with STFT & LTFT trimming isn’t a backwards step in design. It’s a lovely plus plus on top of the base map - when the throttle is whacked open it operates just the same as the 15M base map as it’s now in open loop mode - but has the added closed loop constant throttle closed loop fine tuning.

    There is zero problem with the 15RC ECU it’s lightening fast in response times - the original root cause problemo was “the LSH15 probe has such a slow response time to the variation of the exhaust gases”

    …“the LSH24 instead has a very good sensitivity and a response time equivalent to the reading interval of the ECU.” The 15RC ECU.

    Don't disable in trying to cure any hiccup stumble or poor running problems.

    Just simply change the bloody O2 sensor to the improved LSH24 and you’ll have all the open loop 15M provides plus more with closed loop adaptability - which auto tunes out… any hiccup stumble or poor running problems!

    If this doesn’t make perfect sense folks then go & rip out all your O2 sensors from every other vehicle you own - even butcher the V100 Mandello with its closed loop adaptability O2 sensors. It’s clearly too complex - which is probably a bad thing.

    • Like 2
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    Acceleration Enrichment Map-2004 Rosso Corsa

    in Technical Topics

    Posted

    7 hours ago, Rob NZ said:

    I have tuned it many times using the "decent tune up" protocol. It runs well except that every now and then it will cough when blipping and changing down and cut out.

    It is stock except that some time ago I did the "Phil teardrop mods" to open up the airbox.  It still has a paper filter.  The cough and cut out issue was there before the mods and has not changed since the mods were done.

    My bike has a Lamba senor.

    Here’s my tip. Don’t eliminate the 15RC ECU’s closed loop ability by disabling the O2 sensor.
    Do not disable the 15RC closed loop adjustability - just change the Guzzi factory installed O2 sensor which was found to be inadequate - with the Bosch improved LSH24 sensor upgrade.

    I strongly advise you do this before anything else.

    Years ago I too was frustrated & went searching on foreign sites for possibly overlooked solutions.

    I’ll leave this translation with you from what I originally tracked down on an Italian Guzzi forum. I can’t recall how many pages were laboriously translated (literally hundreds), but eventually found this gem discussing the root problem - acted on the advice as it was both a) inexpensive b) easy (what’s not to like?) & c) made the most succinct sense - & found I’d hit the jackpot. Hiccup free 100%. Perfect.

    Translating Anima Guzzista there was a highly respected Italian Guzzi mechanic (Ube) known as Motoube on Anima Guzzista forum who clearly stated the original root of the problem:  “the probe used by Guzzi corresponds to a BOSH probe which has certain characteristics corresponding to the BOSH specification "LSH15", in jargon called the LSh15 calibration curve this probe was used on cars starting from 1992/93, it was immediately seen that its sensitivity and response speed were INADEQUATE TO THE REAL CONDITIONS OF USE OF THE VEHICLE. BOSCH ran for cover and created the probe with the LSH24 calibration curve. much much faster and much much more sensitive. realize that the LSH15 probe has such a slow response time to the variation of the exhaust gases that the control unit takes a thousand or more readings of the lambda value .... the LSH24 instead has a very good sensitivity and a response time equivalent to the reading interval of the ECU.”

    • Like 2
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