according to me to omit the speech pressure, let me explain better... if the pump works to 1400 bar, the regulator opens that much needed x take the pressure required ( and therefore the internal components must withstand those pressures) but if we bring it to 1600 ( random numbers) don't you think that the wear and tear of the components is greater???? of course all of this ? my thought![]()
hello Ela, your speech ? logical, but if I have a pump that I sold with operating characteristics to 1600bar why? it should break? Understand my speech? It would be like saying that your car has an engine that can? turn 4500g/m ,but you do turn up to 3000 if you do not wear before. At that point, made a panda! haha
and you, too, have reason for? a drive must always be at 4500 revolutions according to me, durer? less of a seal of 3000 ( such as wear and tear of the mechanical parts that must withstand stress) then ? obvious that each follows its own logic![]()
Gi?, if we talk about together, then you have reason to 100%. Definitely not durer? 400k km, but if you think that maybe in 2 years it will have? remove it why? euro3 then you say....but you! My car has 95k miles thought as I rode!!![]()
Hi to all, I would like to reopen this discussion because, in addition to being interesting and vital to the understanding of the mod to make advances, even the idea of what is going to be changed and the conditions under which it is clarified by reading the various rear
Now let us turn to the questions that I would like to ask...
Let's take an example on the car stock with engine 1,9 jtdm (in my case, the 147 120 hp-treated by the English name..) that as factors of advances ORI has:
975 (µsec has 22 degrees to 70mm3 of inj with 1600bar of prx at 4500rpm and calculated from the pms to 26,32 degrees (+ 5 degrees of post and I think there are too many).
In the incrementing of that map (we are talking about edc16c39) to take it to an iq equal to 100mm3, I calculate the times and all the rest that I need and finqui ok.
The last step before upload it is to climb the advances for the new IQ, which, from 22,01 degrees ori doing the calculations, I get to 1180 µsec with 31,86 degrees with the rail pressure to 1700 (having the pump rail of the lybra 2,4 I presume contains such a request without problems as it is not for a long time, of course..).
Now my question is this..
How do I determine the value to be set on the advances to ensure that you do not go out out with degrees (in theory as I understand it no more than 3, but they are voices) to be able to increase this map based on the increase of IQ ?
Just wondering what criteria should be increased (regardless of whether in % or calculated.. I have taste), and what are the limits to which I can escape?
I am working on this map but I'm stuck on these points, as the details are not clear enough about it.
I thought of climbing all the map advances so as to arrive at the maximum at 25 degrees that I know more than I'm going to the wall increases (not done, but read by tidus) but I don't know what criteria, if climbing by the 70mm3 to 100 with only 3 degrees at full load or, 60mm3 to 70mm3 are specular values, consider the step 24 as the value to be set in the table 80mm3 and keep it constant up to 100mm3, but does not make much sense...
I look forward to your opinions.
I'm attaching a screen of the table in excel on which I'm working on.. is a bit confusionata but I have locked up all the factors to which to refer for the calculations without the need to click elsewhere to search for values.
Enlighten me thanks
I have also read on post9 of this topic but I did not understand very well...
http://www.professionalchiptuning.ne...+advances+jtdm
Annex 10517
Small OT in the annexes to the template [online support] (one in the lower right) covers the function keys.. place it so that it is unmanageable..
Last edited by tranky; 30-06-2016 to 21:05
Live ****** & you Die a HERO !
Hello, I answer you briefly what I think..
Let's say that each of us has different thoughts, I personally prefer to give a little more advance than finishing the injection and up to 10 degrees after tdc.. the failure of the engines, according to me, are more related to the map in general, and especially to the state of the components (especially the fuel injectors)..
Personally I also use 27.5-28 degrees on 8v and 30 degrees on the 16v. Certainly it's all about what to look for one from the machine, the turbine mounts, how to use the machine..
I have friends who have broken 8v with 25 degrees maximum advance as some that I do run with 27-28 degrees without problems, one also is very close to the 300cv so you can imagine the amount of fuel and turbo pressure that uses that engine (of course with the injectors appropriate).
According to me, I would never have an answer on how to do it because everyone has their own theories and opinions on the topic
Well, of course I was focused on hearing the personal opinions and have feedback/comparison with the most competent people in this regard.
Thank you for having shared your opinion and I hope they do also the other to get an idea of the most comprehensive on these advances![]()
Live ****** & you Die a HERO !
The speech of the advances is not a simple matter of quick response, to be sure should be tested in conjunction with a pressure probe in the room and the temperature in the room, but on average it seems that on the mjet 8v up to 25 degrees does not give problems, but I repeat, it seems, is not an exact science without the proper tools. With regard to the injections you are wrong, 5 degrees post tdc nn are too many, too many are 12/13, 5 degrees at 4500 are a luxury, in the mid range, you can stay up to 8/9 degrees post tdc for noj to have too much heat, and smoke; hence, anxhe because it helps and not a little to spool the turbo.