#79 Racetronix injectors/ IFR Table/HELP

[Blown]

Has anyone set up an IFR table for injectors of this size on a 2006 6.0L?
Injector Spec's
Static Flow Rate: 76.65 lb/hr @ 43.4psi (n-Heptane)
Dynamic Flow @ 2.5ms PW @ 100Hz: 16.88 mg/pulse +/-10% @ 2.5ms PW @ 100Hz Coil Resistance: 12.2 Ohms (+/-0.35 Ohms)
The injectors should flow about 92lb at 63.4psi rail.

My IFR table doesn't max at 63.4. (254 lb max)

Any advise about changing the other tables to work together:
Short pulse limit
Short pulse adder
Min Injector pulse
Default injector pulse
Offset vs. Volts vs. Vac

Thanks

[VYSSLS1]

do a search for injector.xls, i just used the data out of there and then adjusted the VE table to suit

[loppad]

Seems to be a sticky:

http://www.hptuners.com/forum/showthread.php?t=4742

"Injector spread sheet"

[Blown]

Hey guys thanks for the replys...
I have the spread sheet and use it all the time, problem is, you put those numbers in the IFR table and it doesn't run worth a crap.

I have set this thing up to run on e85. I'm running a S/C and was having problems wih it running out of injector before at hi RPMs.
Usually... In addition to other fine tuning you can derive a "base" IFR table for the new injectors, and then reduce them until the LTFT are mostly happy and go on and do the fine tuning.
I have a tune for the previous 66# inj that idles perfect and makes great power accept for running out of fuel WOT.

With these injectors I have found that I can get the VE vs. LTFT at +/- 2-3 but it has a hesitation on the bottom and has NO power, and throw misfires in cyl's #2 and #7.
I'll post the tune a little later this AM

[Blown]

So i have attached a tune file and a log.

I know the ve table is is screwed up....But it was dead nutz with the other injectors (66#). The new injector are 79# @ 43.5, my fuel rail is 63.5 at idle putting them closer to 92ish.

I have offset the IFR to accommodate E85, but started with a number derived from the injector.xls (*.55)

Theoretically, if the correct injector settings were input, all should be well.
As you can see, I have misfires. I know the injector settings are wrong.
Idles like crap, it has no power on the bottom and Close loop fueling is 13.5-13.7 ??? When I start the truck ,it will start at 14.7 but ultimately finally rests at 13.6 ??

[VYSSLS1]

all those figues will be wrong for E85,

your going to have to play until you get them right,

[Blown]

Which figures?

[Blown]

How about this...Just disregard the E85 thing, do the injector tables look correct for gas?

[maxgee]

any luck?

[Blown]

Ive gone back to my 52# GT 500 injectors and upgraded to a walbro 255 intank pump. Works. I could actually see a pulsation in fuel presure at idle with the old fuel pump now it is flat.

[RWTD]

Ive gone back to my 52# GT 500 injectors and upgraded to a walbro 255 intank pump. Works. I could actually see a pulsation in fuel presure at idle with the old fuel pump now it is flat.

FYI, those GT500 injectors do not flow 52#. Per Ford, they actually flow 48.13920110464092 #/hr at 39.15 psi. Therefore, on a 58 psi setup, they flow 58.593169656198760880416355755857.

[Blown]

Yeah, your right. I've dealt with it in the IFR set up. Ran really lean at first had to offset the table a little.
Do you know anyone who has known injector tables for these? I been experimenting with motron 60# settings but it runs like crap. Goes really rich off idle throttle.

[03Sierraslt]

Yeah, your right. I've dealt with it in the IFR set up. Ran really lean at first had to offset the table a little.
Do you know anyone who has known injector tables for these? I been experimenting with motron 60# settings but it runs like crap. Goes really rich off idle throttle.

You mean you found Motron 60# settings???? If so lets see them.