Ok i just got my 60lb injectors yesterday and i put them in and tuned them yesterday, the idle is great and im commanding 11.5 and im getting 11.5 but my ONLY problem is my idcs are 72% isnt that a little too high ? on 42 pounders i was at about 104%. anyone havce an idea as to why they might be that high if they are high.

 

72 is very high for 60's on that setup.
Probably either you maf tune is off, your commanding way to rich and AFR, or your fuel pump is dropping off up top.

 

If my maf is off i wouldnt be getting what im commanding. and im comanding 11.5 so i dont think thats rich. explain my fuel pump dropping off up top.

 

well if the pump is dying or losing pressure up top, it's going to have to command more injector to compensate.

I hit 184% or something rediculous like that when my fuel pump was crapping out.

 

whats your pw? maybe the pid for idc's is wrong

 

i run a 2.8" with 60s and have 73% idc. PW were around 12 msec.

 

I tryed changing everything and putting in a bunch of different fuel configs and all it does is lean my car out and throw off my maf. My cal cy air went from 1.04 to 1.20 with nothing changed besides my injectors so that may be the cause. With the cal cy air at 1.04 on 42 pounders my idc where about 107%

short pulse limit 2.0 msec and mini pw 0.898 and are you talking about the ve pulse width or the maf?

if your talking about ve injector pulse width bank 1 its at 1-6 from 15-115 and then from 115- 215 its 12 msec
The on for the maf is 1-5 from 1.5 to 6.3 and from 6.3 to 11.1 its 7-12

 

if its 12 ms then they are about right 12ms at 7k is 70%. Maybe your sniffer has gone bad?

 

id have to check again but i dont think ive hit 40% on 2.8 with the 60's

 

thats impossible i think lol

 

could be, my laptop is at home im at work, and id have to look again. its been a while

 

Negative sir. my wideband is 1 week old and it reads dead on with the dyno. Nothing is wrong with my car or anything , it pulls hard as hell i got 2 more p0unds of boost i dont have any idling problems i just thought it would be lower.

Your car must have been slow as nails.

 

What is your fuel pressure? Stock pumps have a tendacy to tapperr down up top.

 

hmm. the base fp on mine is 58psi, no idea what it is up top. no way to measure that unless theres a custom PID for HPTuners that will read it?

 

Damn i just looked and i got a problem to. my injectors hit 90% with 1.24 cyl air. i got some work to do.

 

how am I gonna know what pressure the pumps at

lol. i thought i was 40%. Well we live about 10 minutes from each other so ....

 

i got a fuel pressure gauge. we could hook it up, tape it to the windshield and make a run

 

maybe its the heat down here. but you said your idc for your 60s is 90 thats high.

 

well when i first put them in before i put the 2.8 on, i only hit 41%. i just got the pulley on tuned the maf and stole somebodys ve table. im getting like 10.5 afr and never looked at my idcs. and its still on stock timing.

 

why are my airmass numbers so low? 2.8" and im only hitting 1.14 g/cyl

 

My car is a .98, so I dunno.

 

beats me , whats your mods?

 

Its becuase of different maf calis thats all. i hit 1.40's on the 2.5" and on the tvs it was 1.90's

I had a tester from gm when i did mine just tap it in the fuel rail and go along for the ride nice digital gauge to.

 

2.8", 60#s, heat exchanger, gmp manifold, zzp 3" dp.

the dude who helped tune me says my airmass numbers are fine (SJSchafer) so i guess i shouldnt nitpick.

 

dynamic airflow
disable it above 1500 rpms.