Somebody please check my work (the spreadsheet more so than the injector data itself), my eyes are all crossed now and my head hurts I think I need a nap.
GM Gen4 Injectors v1.1.xls
I can easily add more blank sheets if I left out any important part numbers.
Last edited by blindsquirrel; 08-28-2023 at 07:54 PM.
GM Gen4 Injectors v1.1.xls
Caught a typo in one of the injector part numbers, nothing to do with the data, just the tab label was wrong.
This covers:
19421333/12580681 - 29lb, lots of Gen4 trucks
12587269 - 33lb, LY6/L76
12594512 - 36lb, LMG/LC9
12613411 - 38lb, LMG
12576341 - 42lb, LS3/L99/LS7/crate engines
12609749 - 50lb, L92
12613412 - 50lb, L96
12598646 - 52lb, LSA/LS9
Siemens Deka Injectors - FIC data.
- Deka 60 UPDATED file at Post #49
- Deka 80
- Deka 100
Last edited by SiriusC1024; 1 Week Ago at 12:15 AM.
@blindsquirrel could I please get the file for 12580426 injectors, 58 psi, non-referenced.
My injectors are actually 25326903 but it appears the 0426 is the new number.
Thanks
12580426 is already a Gen 3 injector with data in Gen 3 files. 2004-down L59 files will be for 51 PSI referenced/return style, and 2005-up L59 will be 58 PSI returnless.
GTP 36lb (39.87lb@4bar) injector in Gen 3 format - Bosch 0280155868
Last edited by SiriusC1024; 09-01-2023 at 02:24 AM.
Green Giant 42lb (50.29lb@4bar) - Bosch 0280155968 - FIC data.
Last edited by SiriusC1024; 09-01-2023 at 02:23 AM.
Dave Steck's (dsteck) Ford to GM conversion spreadsheet.
Last edited by SiriusC1024; 09-01-2023 at 12:30 AM.
Injector sizing cross-reference.
Basic product datasheets for Bosch injectors in Gen 3 and Gen 4 applications.
Examples of usage:
- Consider transient fueling behavior - fuel to wall impact and boil time. 'E' pattern typical for 2 valves per port. Avoid using in LS-based engines. Select 'C' type with similar alpha (α) as factory.
- GTP injector specifications shown in the EV6 file pg 5 column 2. Narrow width 'C' spray pattern ideal for cathedral ports. 'L' long type for LS1 rails. Correct impedance.
- Gamma (γ) angle shown in either file, but specifically EV14, is non-zero on Gen 4 LSA/LS9. Due to mismatch of rec-cathedral adapters, this is a consideration when using LSA blower.
- For 'E' patterns take note that injector orientation must be indexed. Same is true for all non-zero gamma.
Last edited by SiriusC1024; 09-01-2023 at 07:15 AM.
My pcm, tune, and original injectors are from a non-flex 04 LM7 (Avalanche) and I got a set of these 6903 flex injectors at a pick and pull. This is swapped into a 69 Camaro w/ returnless & 58 psi. Looks like 05-up L59 data is what I need. I'll get an appropriate tune from the repository. Thanks squirrel!
some good info here also
https://www.aacorvette.com/injectordatahp.html
Last edited by bk2life; 09-05-2023 at 11:00 AM.
When you post a link, the '?fbclid=' and everything after is a Facebook tracking identifier and should be removed before pasting.
This is great stuff guys! Thank you!