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Discussion: change advances

  1. #281
    THE AVERAGE USER
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    I agree that it is complicated, but I don't think a map with a "plateau" advances from 1500rpm up to work well! Apart from all the fittings would also be a bit steep!

  2. #282
    THE AVERAGE USER
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    I am absolutely convinced that will? bad for you? I wanted to try (if there was no risk of crack on the engine) to test it with the foot, the effects of advances on all the range!

    In the area of 1500, however, smusserei a bit just to not have the shot. Not ? in my goals to get cv's in that area

  3. #283
    THE AVERAGE USER
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    Let us know then! I'm curious, I don't think you can break anything, but I expect that in the low revs hurt!

  4. #284
    THE AVERAGE USER
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    Tried, basically it does not change anything, as a precaution, I have beveled on the 1500 and under about 1/3 throttle, I tested it on the map completely ori, maybe ? slightly more? responsive, but apart from this nothing that. bon I removed the dot

  5. #285
    THE AVERAGE USER
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    time inj does not have a performance "adjust" in quantity, but they have the technical timing of the opening pin which depend in particular on the rail pressure, then the opening time of the needle always remains the same and the more it stays open the more amount of diesel is injected, then a normal and that employs 1 mm3=207 x 80 to inject 80 mm3, but there put? much less because the needle open only once
    The power is nothing without control

  6. #286
    THE AVERAGE USER
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    But anyway, you don't need to know this to calculate the advance payments you just need the injection time in the map for what to calcolarti the exact time of injection you can do it from a pompista to tour you can go near if I'm not mistaken, and used the formula and charge of the capacitor
    The power is nothing without control

  7. #287
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    However, a principle, you can do it..if you really want to know the micron diesel fuel then you need to proceed differently, and for via test benches....in the late 80 78 82 mm3 do not granch? difference
    The power is nothing without control

  8. #288
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    Apr 2014
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    The advances are changed only on the naturally aspirated engine, the turbo will only change if the car has other issues after having mapped without advance.

  9. #289
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    Where written this rule??
    The power is nothing without control

  10. #290
    THE AVERAGE USER
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    Citazione Originally Written by jovandj Visualizza Messaggio
    Where written this rule??
    Quoto. According to me, the change of the advances ? very important both for performance and for fuel consumption. I gave up 3 degrees in some parts of the 'load paralyzed' (calculating all with durations of injection, pressure, diesel fuel and engine rpm), and the difference feels right, the throttle response ? pi? responsive and fuel consumption drop of, not a little, especially in the area of 1500 to 2500. At high rpm instead of the down as well a bit with a light load as the injection ends much before tdc in the last curve. This from the original I think is done on purpose to make a quicker cooling of the engine at the time of release, this is I think from the moment that if I let to hit the throttle to 4500 the egt go down immediately, if, however, a 4500 I put in neutral and let off immediately the engine at 850-900 rpm the egt go down more? slowly.
    However, I also reached more than 6 degrees in pi? to 4000 rpm without having the machine walls, speaking also of car with turbo plus, and other components changed. If the diesel fuel is given in abundance, and the advance must be given just as carefully always trying not to inject too much over the pms. The management of the afr has a population of mounts as with a Afr of pi? low " it will speed? the combustion process and then will be? need less advance, and vice versa Afr lean tend to have need? an advance higher because of their speed? combustion is less.

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