testing the new FIC 1100 cc/min saturated injectors
#121
mrfred, can you explain your latency on last pic?
in 1st post you put scaling which corresponds with fic1100 linearization thread:
https://www.evolutionm.net/forums/ec...0-fic1650.html
but in your last pic latency bit higher, why?
#109
ps: sync accel enrichment is the same "Sync Load Accel Compensation vs RPM"? address 3278
tank you!
in 1st post you put scaling which corresponds with fic1100 linearization thread:
https://www.evolutionm.net/forums/ec...0-fic1650.html
but in your last pic latency bit higher, why?
#109
ps: sync accel enrichment is the same "Sync Load Accel Compensation vs RPM"? address 3278
tank you!
If you want to use the FIC1100 pulsewidth linearization values, then use the latency values from the first post in this thread, and then you'll likely need to retune the MAF scaling table somewhat.
#122
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ok
had some time and try your fic 1100 settings, exept maf scaling, cause i have stock intake box with mahle paper filter.
set 128 to maf smoothing, sub 20 from maf scaling and add maf smoothing delta(x-128) to maf scaling table.
car startup without any issues.
my rom 88580714 patched with your CL AFR control. afr on idle 14.7, 15.6 on cruise.
after some idling and cruising: CrFT -9.96, IdFT -11.13
what do you recommedn, up injector size to 1044 or tweak maf scaling?
thanks
had some time and try your fic 1100 settings, exept maf scaling, cause i have stock intake box with mahle paper filter.
set 128 to maf smoothing, sub 20 from maf scaling and add maf smoothing delta(x-128) to maf scaling table.
car startup without any issues.
my rom 88580714 patched with your CL AFR control. afr on idle 14.7, 15.6 on cruise.
after some idling and cruising: CrFT -9.96, IdFT -11.13
what do you recommedn, up injector size to 1044 or tweak maf scaling?
thanks
#124
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tried to play with maf, but this not enought affect on trims. so i back to start values maf and drop a 6% latency. hour of cruising and idling and get perfect trims in my opinion. -1.4 idle trim and -1.2 cruise trim.
i haven't front o2 and wideband in rear o2 place. rom patched with mrfred's close loop control. positive moments - afr much solid at idle with right fic 1100 scaling.
i want to say big thanks to mrfred! you are real EVOGOD!
ps: i forget about one strange issue: when car stopped at traffic light(whatever), afr goes rich and after +|-30 secs it normalized to 14.7. what could it be? I watch it for a long time and don't remember how it was on stock injectors
i haven't front o2 and wideband in rear o2 place. rom patched with mrfred's close loop control. positive moments - afr much solid at idle with right fic 1100 scaling.
i want to say big thanks to mrfred! you are real EVOGOD!
ps: i forget about one strange issue: when car stopped at traffic light(whatever), afr goes rich and after +|-30 secs it normalized to 14.7. what could it be? I watch it for a long time and don't remember how it was on stock injectors
Last edited by memphis69; Mar 27, 2015 at 02:01 PM.
#125
tried to play with maf, but this not enought affect on trims. so i back to start values maf and drop a 6% latency. hour of cruising and idling and get perfect trims in my opinion. -1.4 idle trim and -1.2 cruise trim.
i haven't front o2 and wideband in rear o2 place. rom patched with mrfred's close loop control. positive moments - afr much solid at idle with right fic 1100 scaling.
i want to say big thanks to mrfred! you are real EVOGOD!
...
ps: i forget about one strange issue: when car stopped at traffic light(whatever), afr goes rich and after +|-30 secs it normalized to 14.7. what could it be? I watch it for a long time and don't remember how it was on stock injectors
i haven't front o2 and wideband in rear o2 place. rom patched with mrfred's close loop control. positive moments - afr much solid at idle with right fic 1100 scaling.
i want to say big thanks to mrfred! you are real EVOGOD!
...
ps: i forget about one strange issue: when car stopped at traffic light(whatever), afr goes rich and after +|-30 secs it normalized to 14.7. what could it be? I watch it for a long time and don't remember how it was on stock injectors
The next step in tuning the injectors is to monitor AFR and STFT response at different MAF Hz values and tune the MAF curve so that AFRs are spot-on across the airflow range. Takes a lot of time and effort to do this though.
BTW, I'm puzzled as to why the MAF scaling table didn't have any appreciable affect. Its always worked for me.
#126
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The next step in tuning the injectors is to monitor AFR and STFT response at different MAF Hz values and tune the MAF curve so that AFRs are spot-on across the airflow range. Takes a lot of time and effort to do this though.
BTW, I'm puzzled as to why the MAF scaling table didn't have any appreciable affect. Its always worked for me.
BTW, I'm puzzled as to why the MAF scaling table didn't have any appreciable affect. Its always worked for me.
why maf not affecting - maybe my bad. cause i add % to scaling value without adder(160). maybe this a reason, not sure.
what you can say about this?
ps: i forget about one strange issue: when car stopped at traffic light(whatever), afr goes rich and after +|-30 secs it normalized to 14.7. what could it be? I watch it for a long time and don't remember how it was on stock injectors
thanks!
#127
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lis there any level of a direct relationship between 14v latency and global afr? what i mean is, if you lower latency by X ms does afr richen x%?
my car has always had a pretty wide split between the fuel table requests and actual afr, but it never bothered me. i think i found a latency i like finally which was down 0.050ms from where i started. meanwhile i made a blanket change of my fuel map down 4 clicks (more fuel) and still the car is 0.5-0.8 afr points richer than i had it dialed on the stock injectors.
basically it seems like im having to lower the requests on the map A LOT to get it to mid 11's which is making me feel like im doing something wrong.
my car has always had a pretty wide split between the fuel table requests and actual afr, but it never bothered me. i think i found a latency i like finally which was down 0.050ms from where i started. meanwhile i made a blanket change of my fuel map down 4 clicks (more fuel) and still the car is 0.5-0.8 afr points richer than i had it dialed on the stock injectors.
basically it seems like im having to lower the requests on the map A LOT to get it to mid 11's which is making me feel like im doing something wrong.
#129
lis there any level of a direct relationship between 14v latency and global afr? what i mean is, if you lower latency by X ms does afr richen x%?
my car has always had a pretty wide split between the fuel table requests and actual afr, but it never bothered me. i think i found a latency i like finally which was down 0.050ms from where i started. meanwhile i made a blanket change of my fuel map down 4 clicks (more fuel) and still the car is 0.5-0.8 afr points richer than i had it dialed on the stock injectors.
basically it seems like im having to lower the requests on the map A LOT to get it to mid 11's which is making me feel like im doing something wrong.
my car has always had a pretty wide split between the fuel table requests and actual afr, but it never bothered me. i think i found a latency i like finally which was down 0.050ms from where i started. meanwhile i made a blanket change of my fuel map down 4 clicks (more fuel) and still the car is 0.5-0.8 afr points richer than i had it dialed on the stock injectors.
basically it seems like im having to lower the requests on the map A LOT to get it to mid 11's which is making me feel like im doing something wrong.
#130
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mrfred, help please
it's injectors or maybe smth else?
log attached.
thanks
i have strange issue: when car stopped at traffic light(whatever), afr goes rich and after +|-30 secs it normalized to 14.7. what could it be? I watch it for a long time and don't remember how it was on stock injectors
log attached.
thanks
Last edited by memphis69; Apr 11, 2015 at 10:50 AM.
#135
ok, but if you are using my WBO2 patch, then presumably you have the wideband output connected to the rear O2? Either way, you need to log front O2 because my WBO2 patch creates a simulated front O2 signal that replaces whatever signal is being read by the front O2 ADC (in this case, your ZT-2 simulation wire).
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