I am tuning the fuel injectors but first I need to get a basic setting to further fine tune off of.
I am using the calculator in HPTuners software for flow rate. I also have a 2-bar map and scaled the table values appropriately. Which means 50kPa = 0kPa, 0kPa = -100kPa
old / new
100 100
90 80 Idle
80 60
70 40
60 20
50 0 n/a WOT
40 -20 @3psi boost
30 -40 @6psi boost
20 -60 @9psi boost
10 -80 @12psi boost
0 -100 @14.7 psi boost
Here is what I came up with using 36# injectors from the supercharged 3800. I would calculate the rail pressure using the manifold pressures as well. So if there was a 10psi vacuum then the rail pressure would be calculated at 53.5psi. Under boost of 8psi the rail pressure would be 35.5psi. Of course the rail pressure isn't really changing, this is used to determine the effects of pressure/vacuum on the injectors.
Modified the table below from original post
Manifold . FuelRail = FlowRate
100kPa . 43.5psi = 34.37
80 kPa . 44.8psi = 33.97
60 kPa . 46.1psi = 33.58
40 kPa . 47.4psi = 33.19
20 kPa . 48.7psi = 32.79
0 kPa . 50psi = 32.4
-20 kPa . 50psi = 31.18
-40 kPa . 50psi = 29.95
-60 kPa . 50psi = 28.73
-80 kPa . 50psi = 27.51
-100kPa . 50psi = 26.29
Does this seem correct?
I am using the calculator in HPTuners software for flow rate. I also have a 2-bar map and scaled the table values appropriately. Which means 50kPa = 0kPa, 0kPa = -100kPa
old / new
100 100
90 80 Idle
80 60
70 40
60 20
50 0 n/a WOT
40 -20 @3psi boost
30 -40 @6psi boost
20 -60 @9psi boost
10 -80 @12psi boost
0 -100 @14.7 psi boost
Here is what I came up with using 36# injectors from the supercharged 3800. I would calculate the rail pressure using the manifold pressures as well. So if there was a 10psi vacuum then the rail pressure would be calculated at 53.5psi. Under boost of 8psi the rail pressure would be 35.5psi. Of course the rail pressure isn't really changing, this is used to determine the effects of pressure/vacuum on the injectors.
Modified the table below from original post
Manifold . FuelRail = FlowRate
100kPa . 43.5psi = 34.37
80 kPa . 44.8psi = 33.97
60 kPa . 46.1psi = 33.58
40 kPa . 47.4psi = 33.19
20 kPa . 48.7psi = 32.79
0 kPa . 50psi = 32.4
-20 kPa . 50psi = 31.18
-40 kPa . 50psi = 29.95
-60 kPa . 50psi = 28.73
-80 kPa . 50psi = 27.51
-100kPa . 50psi = 26.29
Does this seem correct?