The concept of injector flow rate linearization is covered in a previous thread: https://www.evolutionm.net/forums/ec...ion-table.html

Drivability on big injectors can benefit from using the correct flow rate linearization values. FIC2150s need it the most because they are very high flow injector and have a relatively large non-linear region. I posted my values for this injector in a separate thread: https://www.evolutionm.net/forums/ec...ing-notes.html

Some time in January, I'll be trying out FIC1650s. Thanks to FIC who provided the needed data, I have generated a linearization table for FIC1650s as well as for FIC1100s. What I found out is that both of these injectors become extremly linear very early and don't require nearly as much of a correction as the FIC2150s. However, the values for FIC1650s and FIC1100s are very different than the stock values, so it would be a good idea to try my injector-specific values to see if they provide better drivability, especially on pump gas.

As mentioned in the linearization discussion thread, there is a matched injector latency that should be used along with the linearization value. For the FIC1650s, the 14 V latency should be 1.02 ms, and for the FIC1100s, is should be about 1.13 ms.

FIC1650s
Here are the values plotted in Excel.


Here are the values plotted in ECUFlash.


FIC1100s
Here are the values plotted in Excel.


Here are the values plotted in ECUFlash.

 

Thanks mrfred, thats a nice Christmas present. FIC never did get back to me with the data I'm sorry to say.

 

They are quite busy, so I think it was a matter of sticking with me since I had been discussing with them for the last six months. I can send the flow curves if you want.

 

Yes please.

 

Thank you very much Mychailo

 

Sent.

 

Oh wow, Mychailo, this is great!

Do you think FIC1050SP should use the same value for FIC1100 as I think the only difference is the diffuser?

My data sheet says 1.22ms for 14V @ 3 bar - avg flow is 966 cc/min

 

The FIC1100 has a rather unique geometry, but if the FIC1050SP is a Bosch high-Z based injector, the FIC1100 linearization values are probably a better starting point than stock.

 

Thanks, Mychailo.

I thought it is the same Bosch high-Z unit like FIC1100, but I am not sure if they are indeed same.

They are high-Z and have the same EV1 connectors. I also ordered FIC1100 for local EVO X owner, so I will compare them side by side if they have the same body.

I will try it with your value as a starting point. Thanks again!

 

Thank you! I'm trying to troubleshoot erratic AFR behavior out of my FIC1100s and this might just be the ticket. I've got an '08 X but I think this: http://www.evoxforums.com/forums/sho...6&postcount=65 is the corresponding table in the X maps. My scaling was different from the 8/9 so I tried to interpolate and here's what I've done.



Seem right?
Edit: I'm showing my alt scaling too for E85.

 

Looks ok to me when looking on my phone. Will the two traces overlay on each other if on the same plot scaling?

 

Yes I think they do. Just more concerned with identifying the right corresponding map/def on the X. It seems right. I flashed it today and restarted the process of dialing sizing and latencies in. Still noticed that the 1.25ms at 14V is too much.

EDIT: FYI to all, seems to have worked for me with no ill effects.

 

MrFred, do you mind sharing the scaling for the 1650s?
Thanks

 

Haven't run them yet.

 

From where i can get the table coding for FIC 1450s for 96530706 and closed loop integral gain ?

Sorry, but i am not much into coding, but i want to make the most out using this.

Thanks.