Injector settings?

[hquick]

Here's something else for you Al.

Ford lightening 42lb injector voltage offsets


Volts Delay Time
15.99 - 0.71484375
15 - 0.71484375
14 - 0.7861328125
13 - 0.9033203125
12 - 1.03125
11 - 1.197265625
10 - 1.396484375
8 - 2.1181640625
6 - 4.6474609375
0 - 4.6474609375
0 - 4.6474609375
0 - 4.6474609375

I just used the linear fill function to fill the extra slots in the EFILive table.

Here's mine (anyone else please comment if you think this is the wrong way of going about things...this seams to be a forbidden black art Lol!).



Just ran some logs with these in there. Firstly...as soon as I loaded them the AFR guage went 2 points richer.
I didn't notice ANY pinging I've had all along.
Also...rich/lean didn't seem nearly as dramatic.
Still digging!!!

[Aloicious]

Here's something else for you Al.
I just used the linear fill function to fill the extra slots in the EFILive table.

Here's mine (anyone else please comment if you think this is the wrong way of going about things...this seams to be a forbidden black art Lol!).



Just ran some logs with these in there. Firstly...as soon as I loaded them the AFR guage went 2 points richer.
I didn't notice ANY pinging I've had all along.
Also...rich/lean didn't seem nearly as dramatic.
Still digging!!!

hmm...thats interesting. thats the voltage correction factor table...from my understanding, it alters the injector flow based on fuel pump voltage, not really related to the offsets....though I could be wrong. but you got rid of the pinging, thats a good thing, so I would think that proves something with your injector tune is out of whack. what was your table at before? just the stock L31 settings?

in comparison to other vehicles, most others I find have that{B4002} table at 1.00 all the way across (expept for the L31 of course ), and for a while I've had mine 1.00 across as well. didn't seem to help or hinder me though.

In reading the thread from the HPT thread you linked to talking about the voltage-offset-vac table {B3701}, I get that with the Rich decel I'm having it would likely be related to the table being too high, and in comparing the L31 settings with other non-poppet injector'd tunes, that looks like it might be right. @ 13.5 V (where I'm at the majority of the time), the L31 tune is at 0.6535, where as the settings for other vehicles using EV6 injectors in the same column are as follows:
'02 silverado 5.3 - 0.2584
'02 Vette 5.7 - ranges from 0.3495 - 0.3951
'07 Camaro 5.7 - ranges from 0.4103 - 0.4559

What are the issues you're getting on the 42#'s that you're running, besides the pinging?

[Aloicious]

here's a spreadsheet I found on LS1tech.com. hope they don't mind if I post it here, it compares some SVO injectors voltage offset to GM multec. could be usefull, gives the full range of settings as well, (all are less than the L31 tune's table as well...)

Edit - I'm going to try adjusting the B3701 table, getting a better slope like other tunes and lower values in the 10-15V range, and see how that goes. I'm hoping it will solve the rich decel (or at least lessen it so I can get it dialed in correctly), at which point I can focus on the lean tip in, and after that try to correct my VE and MAF where the fueling errors I couldn't filter out caused miscalculations.

I will be happy if it works.

[hquick]

And some more info I just found on them...

Ford's fuel systems run at 39 psi, hence why some state they are "rated" at non-standard bar ranges (i.e. 3-bar = 43.5 psi, 4-bar = 58 psi).

To answer the initial post of this thread, the red top "so called" 30# Bosch injector (aka SVO) flows 31.68010728 #/hr at 39 psi. In addition, the blue top "so called" 36# Bosch injector flows 34.560585 #/hr at 39 psi, and the green top "so called" 42# Bosch injector (the factory injector in the Lightning) flows 40.3198236 #/hr at 39 psi. These are all verified flow rates using Ford's test equipment.

One can easily convert these values to 58 psi by using this formula:

√(58/39)*x (where x is the injector values at 39 psi I gave above)

[hquick]

Sweet Al....I'm going to try those...just as soon as I dig up a bit more info.
Not sure what the IFR should be set at now.

[Aloicious]

Sweet Al....I'm going to try those...just as soon as I dig up a bit more info.
Not sure what the IFR should be set at now.

yeah get that all set up first. I got mine flow tested within 1% of each other, and set my fuel pressure and calculated the IFR with the methood described here:
http://http://forum.efilive.com/show...light=injector

so my injectors were flowtested at between 258-260cc/min, I used 259 to calculate my IFR, so 259cc/min=24.6667 lb/hr @43.5 psi, I'm running at 45psi with manifold reference unhooked (fp+baro)
so my calculation went like this:
24.6667*sqrt(45/43.5)=25.08838 lb/hr *.126 =3.161136 g/sec

however due to binary something or other, EFI live has to round to 3.16406 g/sec. so thats what I have in there.

[Aloicious]

heh, if I wasn't stuck at work I'd go test the altered voltage offset table right now..

[hquick]

For some reason that link doesn't work Al.

[Aloicious]

For some reason that link doesn't work Al.

thats strange, not working for me now either, hmm..anyways, its a sticky in the 'general' section titled 'calculating injector flow rate' or something like that, authored by joecar.

[hquick]

Yeah...that's 3 versions I've found now..Lol!
Got an email address?
I'll send you what ever info I can't post.