MARELLI MJET impariamola!

[Fede78]

According to me for? the problem is not ? the quantity? diesel or better before you have to make sure to get pi? the air in this engine.
If you have a log you will notice that even with the deal? pi? low IQ already? we have a lot of smoke. With the turbine of the series if you exceed the 12/13% the increase of the injection time you're in the big smoke! We want a turbine that throw within the double air!
Sooner or later I have to put on the GTB1549 of 2.0 Mjet ! I also have a exhaust manifold here that looks at me and waits to be flanged to a turbine serious.

[cinqueturbo]

According to me for? the problem is not ? the quantity? diesel or better before you have to make sure to get pi? the air in this engine.
If you have a log you will notice that even with the deal? pi? low IQ already? we have a lot of smoke. With the turbine of the series if you exceed the 12/13% the increase of the injection time you're in the big smoke! We want a turbine that throw within the double air!
Sooner or later I have to put on the GTB1549 of 2.0 Mjet ! I also have a exhaust manifold here that looks at me and waits to be flanged to a turbine serious.

The smoke and also due to the fact that the extended time, and then throw the useful moment of combustion..
Injection Phase..

[Fede78]

If we take a Point 70 hp with kp35 arrivals to 100/105 cv, with bv35 arrivals to 110/115 cv, with GTB1446V arrives on the 140cv, with GTB1549 or GT1749V say about 170 hp.
The car has a small engine, they could not put a turbine that is too large between the low torque and the turbo lag would become couldn't be handled in daily use or what you do 90% of the owners of this machine.

I also put in the injectors, 95 hp with ir? the flow rate and the time to be taken must be more? reduced. The Cio? if you have over 3000 rpm increases the timing of the 13% with those injectors smokes that you don't see ir? the road behind! Now I can't remember well, but more? 9% over the 3200 rpm you could go to (kp35)
Then ? also for this reason that I say that I don't ? a problem to go in afterburner... but the performance of the pull out on the basis of how much air we can put in. And pi? air then you can give the other diesel... and the horses come out from them.

[puntospeed1.3]

If we take a Point 70 hp with kp35 arrivals to 100/105 cv, with bv35 arrivals to 110/115 cv, with GTB1446V arrives on the 140cv, with GTB1549 or GT1749V say about 170 hp.
The car has a small engine, they could not put a turbine that is too large between the low torque and the turbo lag would become couldn't be handled in daily use or what you do 90% of the owners of this machine.

I also put in the injectors, 95 hp with ir? the flow rate and the time to be taken must be more? reduced. The Cio? if you have over 3000 rpm increases the timing of the 13% with those injectors smokes that you don't see ir? the road behind! Now I can't remember well, but more? 9% over the 3200 rpm you could go to (kp35)
Then ? also for this reason that I say that I don't ? a problem to go in afterburner... but the performance of the pull out on the basis of how much air we can put in. And pi? air then you can give the other diesel... and the horses come out from them.

I understand very well your reasoning, and you also have reason.
but if you are climbing up to 65mg/stroke or mm3(I still have to understand) why do I have to go to change the time, when I have it nice that it is available.
tutt now citing hio I have a standard map with the time changed to 15% on the 70cv and 1.4 of the press, and 1480 of the rail.
I wanted to do the other type of map do not inject off-angle, and be more accurate then with the advance.

[cinqueturbo]

If we take a Point 70 hp with kp35 arrivals to 100/105 cv, with bv35 arrivals to 110/115 cv, with GTB1446V arrives on the 140cv, with GTB1549 or GT1749V say about 170 hp.
The car has a small engine, they could not put a turbine that is too large between the low torque and the turbo lag would become couldn't be handled in daily use or what you do 90% of the owners of this machine.

I also put in the injectors, 95 hp with ir? the flow rate and the time to be taken must be more? reduced. The Cio? if you have over 3000 rpm increases the timing of the 13% with those injectors smokes that you don't see ir? the road behind! Now I can't remember well, but more? 9% over the 3200 rpm you could go to (kp35)
Then ? also for this reason that I say that I don't ? a problem to go in afterburner... but the performance of the pull out on the basis of how much air we can put in. And pi? air then you can give the other diesel... and the horses come out from them.

Sorry, but you know how much to inject injectors, 95 hp (mg x 400 characters?

[Fede78]

Sorry, but you know how much to inject injectors, 95 hp (mg x 400 characters?

Oh here I do have a technical question on which I do not know' answer. I tried them because? I got them at a low price. Then it seemed to me that high speed to go worse. But maybe it was also a psychological factor, my idea is that since these are made to work at 1600 bar and then having them work at 1400 or 1480 bar does not work in specific. But then again perhaps ? only my impression.
Perhaps by comparing the times at equal pressure rail and the IQ of a file 70cv, and a file of the 90/95 hp you could deduce what they inject in pi?. I'm not very good with formulas...

[Fede78]

I analyzed the tables of the times of injection, which are no more then that of the calibration tables of the injectors. That is, the time to inject a tot of mm3 to the determined pressure.

To 1400 BAR we have this situation
IQ-----------------------70CV----95CV
10 mm3------------------379-----369
15 mm3------------------445-----430
24 mm3------------------581-----532
36 mm3------------------770-----691
45 mm3------------------911-----795
55 mm3-----------------1068-----910
65 mm3-----------------1225----1026

Watching, for example, 70 cv, we see that in the 911 us the injectors inject 45mm3 while at the same time and at the same pressure of the rail injectors 95cv inject 10 mm3 of diesel in pi?.

Then I don't know, there will be? some formula that allows to calculate the flow rate of the injectors

[cinqueturbo]

go to the pompista that has both the tables of the courses and also the equipment to measure them..

[Exelion1986]

the range you can? calculate from the tables injection is knowing the specifications of the injector
in the first case you have to interpolate a p? the values, why? in fact, the injection time in the map ? the actual, bens? represents the time duration of the signal given to the injector
then ? including the time that the injector takes to open up
alternatively, knowing the number and diameter of holes in the injectors and the pressure of injection, with a couple of formulas of fluid dynamics you can? go back to the range
note that both are theoretical calculations, for the exact value, as it says in cinqueturbo, it is necessary to measure on the bench

[Fede78]

However, with these injectors, plus you can use less time or with the same time injecting more? fuel without getting to the substance. This is to confirm my thesis that on this engine, we are not at the limit with the fuel injected but we are at the limit with the little air that can enter the turbine original... Chosen to avoid turbo lag, especially in a motor of low capacity.
They have a 1.3 multijet competition would put at least a GTB1549 or maybe a turbine even more? great!