ECUflash FIC 1120cc Injector latency settings

[ryztriumph]

1). Any boost, vac, or exhaust leaks?
BLT tested to 25psi

2). Verified mechanical timing?
yes

3). Verified base timing?
yes

4). Ignition system
Stock Coil (New)
Wire brand: NGK Age: Brand New
Spark Plug brand, type and Gap: NGK BPR7es @ .26

5). Motor health (Compression Test)
Cylinder 1:~140
Cylinder 2:~140
Cylinder 3:~140
Cylinder 4:~140

6). Performed basic throttle body adjustments?
Idle Switch: New
Throttle Cable: In adjustment
TPS: Good
BISS: Good

7). Compression ratio
Stock 2g

8). Any known bad sensors or brittle wiring?
no

9). Any DTC/CEL codes?
None

10). Electrical system
Car off (not running): 12.6
Car running: ~13.5

11). Base fuel pressure and injector values
Base Fuel Pressure: 43.5 (as close as I can get with the analog gauge
Injector Size (cc/min): 1120 (FIC)

12). Properly calibrated and configured wideband sensor
Sensor Brand: AEM
Calibration Date: 2015

13). Type of fuel
Type: 93 Octane Gasoline
Percent of Ethanol: 0% (Ethanol Free.

14). Watched ECMlink how-to videos?
no, but I have watched the ECUFlash how to videos on youtube.


I am having trouble getting a base to go off of on my new FIC 1120cc injectors. I cannot specifically find any information online where people are using these on pump gas. I don't have e85 in my area yet, but there are plans to build a Sheetz with one, which is why I went with the 1120cc's. My flow sheet is at 1139, so I have 1107 in the cc/min injector scaling section in Ecuflash. I'm not sure how much to increase the voltage latency compensation though. In the "getting a basic tune with Ecuflash" thread, it says to increase FIC injectors by .315 - .330. The car runs ok with these settings, but the AFR constantly goes from ~12.0 to 17+ on my AEM EUGO while crusing and idling. I have the idle set at 900 to smooth it out with the 272's. The fuel trim at idle is at -12.5% and the O2 sensor feedback is pegged at -25.

Could anyone reccomened a decent base setting for me to use, or should I just keep fooling with these settings. I have an appointment Saturday for a run on the power dyno (only $35!) and I would like to have it the best I can.

 

[Kenny07]

https://www.evolutionm.net/forums/ecuflash/725378-fic-1120-scalings-latency.html

Look at post 5 and 7, you could try those and see how it works for you.
Post #7 Deals with 93

Good luck, I'll be trying to tune Bosch 1600cc Injectors with ecuflash in the next few weeks. That should be fun...

 

[ryztriumph]

I will give that a try. If I could get it to run acceptably until I get link I would be happy. Tuning large injectors with ecuflash sucks.

 

[ryztriumph]

Update:

Tried the settings found on evolutionm.net. The car runs ok now. I wouldn't call it good though. Fuel trims are still at -12. Idle and most cruising is OK, although at a tiny throttle percentage, it runs around 12-14. If I give the throttle a quick blip, it comes back up and stays around 14.7. When I come to a complete stop and it idles again, it goes to --.- (lean) and takes a few seconds to come back to around 14.7. At WOT, the wide-band goes to 10.0, which is as rich as it goes, and I can see a black smoke puff behind me. Increasing the scaling and latency makes the car run bad again. I will continue to mess with it unless anyone has any suggestions.

 

[1990TSIAWDTALON]

If you have problems when you get link, I used FIC 1120's and saved alot of tunes. At that point maybe I could be of some help. Good luck!

 

[92AWDHX40]

Marty is a great friend and helped get my 1120s Goin on current set up.

 

[Dstarperformance01]

Marty is a great friend and helped get my 1120s Goin on current set up.

HELL OF A GUY and knows his shit FOR SURE. He's mentioned lending me a hand with my 1150's but, I have ECM Link and not ecu flash

 

[1990TSIAWDTALON]

I'm no wizard but have had my share of experience. I don't compare at all to the guys on here that give such good advice and help. Thanks tho guys!! I just pass the help on that I received at one time from a lot of different members here, so thanks to all of them, they know who they are!

 

[92AWDHX40]

Yeah we've become great friends over the years I like my 1120 s