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Discussion: change advances

  1. #261
    THE AVERAGE USER
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    then don't ? 1.88 in? but how can I ? was reported in another post of mine, ? the double with my calculations I for 2 and it was not right so we're doppio3.70? about.
    here is a screen of the times
    Times iniezione.jpg

  2. #262
    THE AVERAGE USER
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    Ah understand...
    but then I think a bit of margin in total security there is... anyway ? the fundamental reasoning on which points the motor you want to make the change... Eye which is usually the maximum pressure inside the cylinder you have it in correspondence of the scheme for which you have the peak power.

    In case I decide to change, I recommend to link the map to the best possible, the abrupt changes of the advance are quite harmful (over all feels just change the combustion noise) - is not to be just fine!

    Ciaooo

  3. #263
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    my intention was to try a couple of degrees in absso from 1500 to 2000 rpm from 5mm3 to about the 27.5 is that it tells me the map, and connect as you say....a half is a test I made and I have to say that the machine ? very fluid and salt also quickly without big loads on the clutch...now will try? to improve.....
    anyway, the important thing is that the ones in the map are the real time and also cash advances,...in order to keep me safe when I go to calcolre the duration after TDC

  4. #264
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    The ones in the map, injectors are the us nominal excitation solenoid injector, and are corrected according to the code IMA of each injector.

    Moreover, the end time of the excitation ahim? does not coincide with the end of the injection... you have to allow time for the hydraulics to close the needle!

  5. #265
    THE AVERAGE USER L'avatar di puntospeed1.3
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    hi.
    these are of the screen to the advances of a tdi 8v 130 and a 16v 140cv.

    in both tables
    note that at 50mg then, the advance remains the same. then you could recalculate for: 60's and 70's. (such as calculations) interpolation?

    The area of 1000 rpm up to 60mg port 15?, then going up to rpm here's the hole , and go down to 11?-10? and then begin to ascend.

    while in the table of 16v to the brought low-there is a real hole= delay.
    Immagini Allegate Attached Images

  6. #266
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    it would be interesting to superimpose the curve introduction the limit in the map, to see if the areas of advance are constant over the introduction limit -- not calibrated.
    If it's so? it was, and you wanted to increase the limit curve of the diesel, you could extrapolate the values of the advance on the basis of the trend of the previous values.
    If gi? in the original work in areas that advance constant of the introduction, then it means that there must be a reason. For example, the elimination of EGR at high loads and at the same time, the immigrants? to limit the NOx...

  7. #267
    THE AVERAGE USER L'avatar di puntospeed1.3
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    from the original iq and actual(from diagnosis) injected both models is about 50mg more or less towards the 4000 spins and then the rest of the map(advance) 55 or 60 is not read.
    while already the injection times of the series are calculated for 60 - 65mg.

  8. #268
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    for the experiences of the past days by first computing the map of the duration of the injection DPMS have to say that between the calculated and the do there goes...ok you do the calculations for change in security but test it on the field ? the last word....I'm playing degree and I noticed that up to 3-4 degrees lower, for example, du the multijet is good and you get tangible results....after that, we would need a bit of experience in pi? and instrumentation to actually see what happens in the combustion chamber.....so I guess that all the series cars have a good margin of processing...because precisely from the constraints of the parameters antiinquinamento.rigranzio of course the guys these days are following me and they are giving me a big hand to understand it all to well....the stu forum ? or the top!!!

  9. #269
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    Citazione Originally Written by puntospeed1.3 Visualizza Messaggio
    from the original iq and actual(from diagnosis) injected both models is about 50mg more or less towards the 4000 spins and then the rest of the map(advance) 55 or 60 is not read.
    while already the injection times of the series are calculated for 60 - 65mg.
    I think I want and then say that that area of the map over q lim not ? was calibrated. If you want to use it would be good to extrapolate from previous values.

  10. #270
    THE AVERAGE USER L'avatar di puntospeed1.3
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    exact. the advance ? calibrated up to 55mg. the injections up to 65mg. that method of calculation, or extrapolation, wish you could do?

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