You can not tell me that nobody has FIC 850's in their evo???

 

I would take the latencies quoted a couple posts above and mult them by 1.1333333. That should give you a good starting point.

 

Just thought I'd share my setup, this has worked pretty well on 2 cars now.

FIC 1050cc injectors (Fuel Injector Clinic). Mine came with a sheet showing them flowrated at 1072cc each, the second set went in an 03 and were shown at 1072, 1072, 1076, 1076.

I have been running these for a few months now with no problems other than a little sputter when 'warm starting' (i.e. car has sat for a few hours after running). As it's been getting cold here in MN, I've had zero cold-start issues and feel safe to publish these to the world.

I'll be converting to E85 in a few weeks, I'll post any updates if I make any changes.

 

voltage-
3.312
1.68
1.032
0.84
0.552
0.456
0.36

Scaling-
770

play with the fuel map a little and it should be good.

 

sorry, i didnt see your post. I had them in mine. But the master chimed in... so i guess you are good

 

I didnt feel like scrolling through all of the pages of this thread to see if this was posted, so forgive me if it is a repost. This company has tested the latency of all injectors on the market for us to see..Hope this helps.
Your scaling and latency "should" generally be dead on if your MAF is scaled correctly for the airflow.

http://injector-rehab.com/kbse/lag.htm

 

There are a few key factors not mentioned on that page that will have a large impact on injector response.

1) Injector driver system used to test the injectors: A peak & hold injector driver system will produce a much shorter latency than a saturated driver with a resistor in series (what the Evo uses).

2) Test pressure on injectors: An injector tested in air with no fuel (or surrogate) pressure on the injector inlet will have a much different latency response than one that is under pressure. The exact value of the pressure matters too.

 

RC750
-------

scaled to 650
latencies:
5.016
3.12
1.992
1.272
0.744
0.48
0.216

same trims as with the OEM injectors (low +8 , mid +3 . running with 15% E85)
fuel map unchanged and no change in AFR (with 636 scaling the AFR were globally .2 or .3 more rich.

 

Any have scales for precision 880's?

 

around page 20 thru 27 you will find someone said theres!

 

My idle has been acting funny since my turbo and injector install. I can usually get it to fall back to a normal idle coming to a stop now. Sometimes it still wants to stall if i'm too abrupt

Even though it stays steady my AFR's jump around it'll go full lean then try to correct and go a little rich then back to full lean. Eventually it'll stay in the 14's as it should.

880's

Scaled to 812

3.312
1.680
1.344
0.960
0.840
0.456
0.240

 

880s

 

FIC 850cc injectors in my Evo IX GSR; professionally tuned:

Scaling = 696

Latencies =
3
2.376
1.2
0.768
0.504
0.36
0.312

My fuel trims are close, but not perfect. I may try adjusting them a bit before I get tuned next, I just don't want to do it now and screw up my tune.

 

Ill post my FIC 850's if i havent already in this thread... Not "professionally" tuned.... but i did it, and they are pretty damn spot on. Scaling is not at 696 for me though. I think 770. or 750.

 

same deal i am in the 770s for scaling on the 850s. I seriously hate these injectors