Pre-2009 files ('early') have a Delta axis that goes 128-640kPa, post-2009 ('late') are 128-768kPa. But both have the same number of columns, so it's not uncommon for n00bs to just paste-n-go without realizing that's a mistake because the data from one will fit in the tables for the other.
Here is a late E38 with 19421333/12580681 data.
Attachment 155376
(only difference between 19421333 & 12580681 is one is Multec connector, one is EV6, internals and data are the same for both)
Originally Posted by SiriusC1024
I did not know that these injectors came in 09? My bad for assuming things i guess.
2009 was the last year for all the RPOs that used them, only a few made it to the 'late' side of the breakpoint. LH6, LH8, LY5, LFA.
edit: And also truck LS2s, those ended along with the last of the GMT360 platform.
Last edited by blindsquirrel; 12-16-2024 at 07:37 AM.
Those lfa engines make a excellent na build. My injectors are from a lfa and they are 33lb? I know they were made at least until 2010 because ive pulled a intake manifold from one.
2010-up hybrid should have been an LZ1, with 38lb 12613411s, all my sources say LFA was '08-09. There is an LZ1 on ebay I have been waffling over, complete for $2K.
Im not sure what year the injectors were but they were lfa. The intake had the ls3 style map and a seperate baro sensor.
The MAP style changed in 2009.
Got the file and was able to pull the tables from it I needed. Thanks! My situation is confusing because the idiot who tuned my truck programmed the ECM for a 2010 LC9, when the engine is actually a 2007! It took me a long time to figure out that problem, but once I did I just went in and turned off all the VVT stuff instead of attempting to find a 2007 VIN and start from scratch.
Many engine RPOs that started out using the early 63lb 128-640 ECMs carried over unchanged hardware-wise after the switch to the late 127lb 128-768 ECMs. It's just a change to the axis labels, it doesn't change the fundamentals of how the ECM controls the engine. This is only for Gen4 engines with Gen4 ECMs, Gen3 has a different crankshaft reluctor tooth count and knock sensor type that isn't compatible.
It's a good thing you never ran across one of the first E38s (2006, Corvette) that had IFR/Offset axis labels that used VAC in kPa on one side and negative VAC in kPa on the other side. Yet the LS2 engine those were used on is the same as the LS2 that got the ECMs using Pressure Delta, both the early and late versions.
I started looking at all of the parameters and tables in the fuel tab, comparing the stock Silverado tune you provided with my custom tune. Which of these parameters are specific to just the fuel injectors and not influenced by the intake manifold or exhaust? For example, I found some differences in the injector offset vs. pressure delta tables, but I don't want to update that table if my values are specific to my build configuration, and not specific to just the injectors.
Download an assortment of the many many *.xls files for aftermarket injectors already posted in this thread, look at which tables are included in 'injector data'. Make sure you are looking at the Gen 4-format tables in the sheets; since you somehow ended up in this thread, be real careful overall about taking in info that might be specific to a type of controller you do not have (this is the Gen 3 section...).
Hello all, I've gone through all these pages hoping to find some info that may aid me with my current issue. I've got a set of Ford m-9593-mu52 injectors that I'm trying to use with my current build. 98 Chevrolet 496 stroker, Intake duration @ .050"- 266 Exhaust Duration @ .050"- 274 Intake Lift- .714" Exhaust Lift- .714" Lobe Centerline- 112 Flotech 360 cc rectangular heads, Air gap dominator intake, 1200cfm 4 barrel throttle body, equal length headers, dual pump fuel system in tank and 1 fuel rail, returnless 60psi. 0411 ECM swap P01.
I'm still new to delving into Large cam tunes, just trying to get all the unkown variables squared away. Any help would be greatly appreciated, I realize time is money.
If a 52lb injector is enough to support that, why not use GM 51lb L96 injectors, which can be had for $55/set, and has real GM data available taken straight from GM files?
Still new to all of this tuning stuff, so pardon me if it's been covered before. I did all the searches and didn't find my specific injector. I have 1261411 injectors out of L20 which is generation 4. I need the conversion factor or chart to convert over to GEN 3. I have taken the throttlebody, intake, injectors, and fuel rail off of the L20 and put it on my stroked LQ9 w/603 OS. I have changed the injector flow but not all of the other injector details. It runs pretty good, but feel there is more available. Any help would be greatly appreciated.
GM Gen4 Injectors v2.1.xls
19421333 - 29lb, various Gen4 trucks (alt# 12580681)
12587269 - 33lb, LY6/L76
12569113 - 33lb, car LS2 (alt# 89017586)
12594512 - 36lb, LMG/LC9 '07-'09
12613411 - 38lb, LMG/LC9 '10-up
12576341 - 42lb, LS3
12609749 - 50lb, L92/L94
12613412 - 51lb, L96
12598646 - 52lb, LSA/LS9
Last edited by blindsquirrel; 12-24-2024 at 12:01 AM.
Still new to all of this tuning stuff, so pardon me if it's been covered before. I did all the searches and didn't find my specific injector. I have 1261411 injectors out of L20 which is generation 4. I need the conversion factor or chart to convert over to GEN 3. I have taken the throttlebody, intake, injectors, and fuel rail off of the L20 and put it on my stroked LQ9 w/603 OS. I have changed the injector flow but not all of the other injector details. It runs pretty good, but feel there is more available. Any help would be greatly appreciated.
Returnless fuel system, 58 psi
Last edited by Elm Street; 12-22-2024 at 02:51 PM. Reason: info
Blind Squirrel, does this have the info I am looking for? ie 411 injectors, returnless 58 psi?
That sheet has every gen 4 injector to gen 3 format as far as i know. Ive not came across any not on the sheet.
It does not have data for 1261411 because that is not a real number. If you meant 12613411 which is a real GM 8-digit number, then yes it does.
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