Alfa 147 edc15c7 the injection times of doubt

[aleg]

I think it's not the right way to calculate the time. According to me you should decide what rail pressure you want to work aumentanto the rail inietteremo more if the time ori. However, if the rail to let ori need to increase the time for have more .therefore, to calculate the time need the press.rail

[Errecinque]

To me that would calculate all the values of the columns 75 and 80 with the proportions and in the same manner also calculate the advances surely is a somewhat crude..I don't know 80/70=1.14 for es 795×1.14=906 us doing the same thing on advances would be off 3 degrees or so considering that one should be 43 but this with rail 1350 raising the rail will serve less advance..I don't know this is what I would think surely there will be a formula that simplifies it all, or maybe my reasoning makes water from all sides!

For the formulas you search in the forum there are at least a dozen discussions where the good Munro is well explained by the calculations. You can every time re-explaining everything.

[DavideO]

Thanks errecinque!found it! Congratulations I watched a bit of discussion.. you and munro know a lot of things and you're always kind available. The formula is (square root of rail × time (us):iq the value obtained should be multiplied by the iq that you want to get, and should be divided by the square root of the rail.so you get the new value.. I did two calculations of the test and the obtained value is not very different from the value obtained using the aspect ratio..

[DavideO]

So theoretically I would have three ways to switch from 70mm3 to 80mm3..the first leaving the rail pressure original calculate the time for 80mm3, and anticipate much.the second is to raise the rail pressure es 1400 calculate the time for 80mm3, and anticipate on the basis of the rail pressure. the third rail es 1400 calculate the time based on the rail pressure and let the advances of the original.*****and does it work? It should be based on the limit dell the injector and you try to cause less stress to the pump?sorry if I make all these stories, but I would like to understand as much as possible

[aleg]

To inject 80mg over the rail of the times you have to raise the launch limiter

[DavideO]

My reasoning was with regard to the correlation time pressure advances, hypothetically, already in a change with limiters various set pre-set values..

[DavideO]

Hello everyone!sorry for the delay but I had problems with the notebook computer, and I had to move everything on that drive..a stupid question but I can load the file to me modified or do I need to astettare have reached 80 mg?thanks!

[Errecinque]

Hello everyone!sorry for the delay but I had problems with the notebook computer, and I had to move everything on that drive..a stupid question but I can load the file to me modified or do I need to astettare have reached 80 mg?thanks!

Upload you can upload so someone can check. the 80msg you need to be able to access the download

[DavideO]

my alfa.zipALPHA 80mm3.zip

[DavideO]

Thanks errecinque!the I zipped I don't know if I had to..thank you in advance if someone will have time to give him an eye!I hope I have more or less understood I the recalculation of the column of 75mm3 and 80mm3 according to the rail with the formula..