Hi,
the question is quite general, however,
I need to understand how a map can be pushed.
Therefore, the maximum pressure (peak) of a system CR of the second generation,
that is the one that comes to 1600 Bar, as in reality can get to get
the maximum performance, without compromising excessively the organs
stressed?
since I have noticed that in the forum the majority of users never exceed
the 80 bar, for a total of 1680.
personally, I seem to be a few but I could also be wrong.
Greetings.
Hello, I'll answer what little I know,usually it is customary to give a 4 - 4.5% increase in the rail pressure, which on balance are on the 1600 bar about 70 of 72... someone says that the systems Cr Of the second generation to be regulated also 1900 the bar but I honestly do not believe that this remains totally reliable...that's why you go to touch the other one and still have excellent results...
Have you tried it on a drive just to test to give an increase more substantial? As I have said before an increase in the order of 5% for me are a bit short because, according to me, the system in general may not have the tolerances to breakage or defect of less than at least 20% to 30%.
I asked this question because I would like to map a 535d and this should be one of the most oversized, and I wanted to try to get to 2000 bar with the car stock but not having the datasheet I do not know if the injectors can handle a lot of pressure even if at high rate and for short time.
With a pressure of 1700bar on the rail, you can arrive safely to 100mm3 of inj and something more.. then increase that pressure on the flute, you'll ensure the full efficiency of the diesel inside of the flute and at the request of inj but overcome the 1900bar is at risk.. the seals will not be held never at a higher pressure.. at least paro ldi pumps rail generic.. making them to change you can get higher pressures but I always advise to put more (I, for example, on the 147 1,9 I mounted one of the lybra 2.4) you can also fine tuning you can get higher pressures with zero risk!Originally Written by flamingsn3Ak3r
Live ****** & you Die a HERO !
So for curiosity with these pressures that you have given, how much you are able to increase the time? Because doing a quick calculation if I wanted to put the pressure to 1700 I should increase times of 400 Μsec in spite of 100 to 2000 bar.
It always depends on how much iq you want to get.. but so-called quick-and-dirty wanting to compare the times, you certainly need to play with the down-payment and a balance on the pre-and post-so avoid going over the pms in time.
On my for example with pressure 1700bar I ORI a value of 22ms and mod arrival in 27ms I had to recalculate on the pre and post to get into range.. (actually, I still have to define the map, but I'm almost there)
Live ****** & you Die a HERO !
ah I forgot to say that the map is calculated for 100mm3 and with the times I was out of + 4°, which I am resizing to fit within the pms is not exceeding with the preinj
Live ****** & you Die a HERO !
I also tried the 1750 without problems, also 1800 for now ok.
with these pressures use less advance. I speak of jtdm16v edc16c39
I did these tests because I had errors p091 092 to lower pressures,and with ste high pressure is not off.
it may be that it collapses the pressure in the rail?
also, if you had ever opened a pump 1800/2000 bar stock you'd understand why it's not possible to keep those pressures without the risk on the pumps from 1600bar because the ducts have a width of less than half
the pressure in the rail should be increased with caution, the increase in pressure increases the diameter of the cone formed by the nozzle, and so the possibility provided for remote low increments of pulverize out by herom, and to ruin, if not to pierce then a piston, I where can I I prefer to have a pile of smoke and be original, on the processing spointe if not I will change the injectors, I stop to protect the engine, as a result, I have a 147 which runs from 80000km with turbo mod and various without problems
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