Lancia Delta integrale 8V - limiter Turbo

[zioweb]

Hello to all and happy new year!
I need your help because I'm freaking out about the limiter turbo on an Integral first type, the 8 valves.
And' the model 185cv and (I attach the file ori) analyzing the file I was convinced that the limtatore was to address 003E01.
For testing I have set down, to the equivalent of 0.4 bar to see if it was correct, but alas, the pressure rises without problems up to remove 1.1, as always.

I could help who knows this ECU?

Thanks in advance!

[zioweb]

hi all, anyone has info for this request?


thanks

[cinqueturbo]

hi all, anyone has info for this request?


thanks

I hope you know what you do in addition to the electronics with this?

[franco75]

I looked at the file and I did not find, anyway, in other files, always 8-bit the turbo pressure must be divided by the 76 then you should find a number around 175, or as often happens a curve by 10 points

[franco75]

perhaps 3ba0 for 10 points but it could be an overboost and not the limiter

[zioweb]

I hope you know what you do in addition to the electronics with this?

whereas, I interpreted your answer does not clear you say yes, I know what I'm doing with these cars. I move with circumspection and only after having studied at modino.
For the 8v I can't find documentation and I rebuilt the addresses and the logic starting from the knowledge of the same ecu's mounted on a Ford Cosworth. I have also produced a handy def file for tunerpro.
I'm just missing the bit of the limiter turbo. You can help me?

perhaps 3ba0 for 10 points but it could be an overboost and not the limiter

But that 10 points was on the 16v where there was actually the manager of an overboost, on the 8v it seems to me there is the electronic management, BUT I COULD be WRONG.
I read that the bit was to take 255 but no one says which one is

3BA0 on the cosworth is the enrichment to fully open throttle. As a curve, the values and the conversion seems to be compatible so I think it's that.

The turbo in these ECU on a Cosworth that share the same hardware, and definitely "source" of the software, the limiter, the turbo brings it back towards the end of the map, where there is also the management of the pseudo-pierburg that mountain (AMAL valve).
In that area, the ecu of the delta is "empty", all to 255, for example.

[franco75]

I am checking the settings of the alfa q4, but nothing, I continue to help you

[franco75]

I see this from a site:
TURBO PRESSURE AND LIMITER

This map controls the max turbo pressure which is allowed before the ECU cuts the ignition.


<Click for full size>

This map is 16x2 fields. There are 16 RPM breakpoints. This map shares the same RPM breakpoints with TURBO PRESSURE map.

The COLUMNS are RPM breakpoints. The Calculation is the same as with injection map and RPM breakpoints.

There are 2 ROWS. Second row is the max pressure limit. When this pressure is reached, the ECU will cut the ignition. First row is the max pressure set. When the ECU cuts the ignition due to reached max pressure, it will start working again, when the set value is reached.

At address hex 7650 follow the pressure limit and pressure set values. These values are 8-bit. To get the pressure limit and pressure set values in the bars you have to divide dec value with 170.

[franco75]

if you think that there are no curves, 3e27, and 3e28 may be two limiter activation and deactivation of the block?

[zioweb]

I am checking the settings of the alfa q4, but nothing, I continue to help you

Thanks a lot

I see this from a site:
TURBO PRESSURE AND LIMITER

This map controls the max turbo pressure which is allowed before the ECU cuts the ignition.


<Click for full size>

This map is 16x2 fields. There are 16 RPM breakpoints. This map shares the same RPM breakpoints with TURBO PRESSURE map.

The COLUMNS are RPM breakpoints. The Calculation is the same as with injection map and RPM breakpoints.

There are 2 ROWS. Second row is the max pressure limit. When this pressure is reached, the ECU will cut the ignition. First row is the max pressure set. When the ECU cuts the ignition due to reached max pressure, it will start working again, when the set value is reached.

At address hex 7650 follow the pressure limit and pressure set values. These values are 8-bit. To get the pressure limit and pressure set values in the bars you have to divide dec value with 170.

The logic is more or less the same, even to the rev limiter has a value that triggers the cut dry, and a value that virtually eliminates only the injection of a cylinder to "slow down" the ascent to the maximum.

For the family IAW of that type, the limiter turbo on the Cosworth (which, as I said, it is the nearest how to release software and hardware) there is a limiter turbo double: one cuts and the other does it back.

if you think that there are no curves, 3e27, and 3e28 may be two limiter activation and deactivation of the block?

Then, those two points I noticed them I also but honestly I still have not tried because I do not returning the values and I'll explain why.

Always making back-engineering the IAW mounted on a cosworth, the values of conversion I came back practically all the restrictor of the turbo on the Ford port values of 240 and 220.
Should be converted using the formula (VALUE/121,344) -1 so as to have the values in bar-related, otherwise, without the -1 for the absolute. And, in fact, the Ford cut around 1 bar.

Those values of 180 and 186 (the part that's reversed in the logical order in which I expect to find it) I would cut the pressure to 0.5.
Then, since the pressure sensor is the same between the two cars, I thought that the conversion had to be the same for which I have not researched them, but actually seem to make sense, as the location, and in the absence of information more secure and tested them I will try as soon as possible!