I have a b13 with z32 maf, tomei 740cc inj., gt2871r on an sr20det.
Can anyone help me with the injector (latency and k value)values for this set up?
Question about tomei 740cc injector values for a b13 sr20det
Moderator: Matt
What I suggest is using the menu options in NIStune to start with a base setting for this combination
Your MAF should be detected as B13 and you then resize to Z32. Afterwards change your CC from factory value for B13 to 740
This will give you a starting K constant value to work with, as well as readjust your limits and Voltage Quanitifer map for the AFM.
Turn off O2 feedback flags in the fuel map and then try and get your mixtures right using a wideband AFR, and adjust K constant whilst 'auto' is ticked to get it right
Once you have got mid-high range right then you can tweak your latency for the GTR injectors. You can try using 1540us latency (0x4D) for your injectors. But as Michael was saying in the other thread, the GTR ECU uses resistors and saturated drivers, and I'm not sure what the hardware for the B13 ECU is
Your MAF should be detected as B13 and you then resize to Z32. Afterwards change your CC from factory value for B13 to 740
This will give you a starting K constant value to work with, as well as readjust your limits and Voltage Quanitifer map for the AFM.
Turn off O2 feedback flags in the fuel map and then try and get your mixtures right using a wideband AFR, and adjust K constant whilst 'auto' is ticked to get it right
Once you have got mid-high range right then you can tweak your latency for the GTR injectors. You can try using 1540us latency (0x4D) for your injectors. But as Michael was saying in the other thread, the GTR ECU uses resistors and saturated drivers, and I'm not sure what the hardware for the B13 ECU is