Inj Flow Rate table - L76 Intake
Inj Flow Rate table - L76 Intake Does anyone have an Inj Flow Rate table for the 39lb/40lb injectors that came with the GM L76 intake (Part# 12590123)? Not sure if anyone ever got the manufacturing specs for these injectors. I looked them up in the bin repository, but got two different results. Right now i think my Flow rate vs KPa table is off and I want to make sure its right.
Thanks in advance.
Thanks in advance.
Found this post:
https://ls1tech.com/forums/pcm-diagn...or-values.html
Although, when i looked up the 08 Vett in the Bin Repository, i noticed that the table for the Vett is actually 33 columns and my PCM is 17 Columns. I assume to just split the difference, but just curious what others have done.
https://ls1tech.com/forums/pcm-diagn...or-values.html
Although, when i looked up the 08 Vett in the Bin Repository, i noticed that the table for the Vett is actually 33 columns and my PCM is 17 Columns. I assume to just split the difference, but just curious what others have done.
TECH Senior Member
Joined: Apr 2002
Posts: 6,080
Likes: 17
From: So.Cal.
The LS3 IFR cells between 400kPa and 480kPa (6 cells) map to the LS1 IFR cells 0kPa to 80kPa (17 cells)...
You will have to interpolate those 6 cells to fit the 17 cells in your LS1 IFR table.
You will have to interpolate those 6 cells to fit the 17 cells in your LS1 IFR table.
can you post what you ended up with? This is what I ended up with and I am not sure if I got the correct info.
Inj flow v Kpa
41.72966 42.03969 42.34972 42.65974 42.96977 43.27980 43.52782 43.77584 44.08587 44.27189 44.45790 44.64392 44.82993 45.01595 45.26397 45.51199 45.69801
Inj flow v Kpa
41.72966 42.03969 42.34972 42.65974 42.96977 43.27980 43.52782 43.77584 44.08587 44.27189 44.45790 44.64392 44.82993 45.01595 45.26397 45.51199 45.69801
TECH Senior Member
Joined: Apr 2002
Posts: 6,080
Likes: 17
From: So.Cal.
A little off...
calculate this: ifr = 41.74*sqrt((400+x)/400)
where x goes from 0 to 80 in steps of 5 (i.e. 0, 5, 10, 15, 20... 80)
The first and last values should be the same as those in the calibration file respectively (41.74 and 45.72).
calculate this: ifr = 41.74*sqrt((400+x)/400)
where x goes from 0 to 80 in steps of 5 (i.e. 0, 5, 10, 15, 20... 80)
The first and last values should be the same as those in the calibration file respectively (41.74 and 45.72).
