hey guys New to hptuners and im trying to build a base file for my build i have made one up and tried comparing to some others that are close to my setup.
the tune im working on is for a gen Iv 5.3 using a gen 3 silverado ecu using 3 bar speed density max boost is 14psi for now. I got the tune idling but it seems that the timing may be jumping around to much. also the injectors are a Siemens style injector and I am unsure if I have them dialed in correctly. The afr is fluctuating from 13.2 to 14.0 at idle and will jump up when I first give it throttle but comes back closer to 13.5ish when free revving in idle.
also my fuel pressure is 58psi and I will have and Iat sensor in it tomorrow
here is the injector data I had to work with.
Technical Data
Coil Resistance: 12 Ohms / High Impedance
Static Flow Rate :80 lb/hr = 835 cc/min at 43.5PSI ( 300kPa )
Gain: 0.12ms/MG
Offset: 0.055ms
Turn on time 1.14ms at 14VDC
Turn off time: 0.85ms at 600KPa
Voltage: 8-15 Volts, nominal 13.5 Volts
Amperage: 1.0 Amps
Pressure: Min 30PSIG/ Max 100PSIG
Variance:2 %
I've worked on this tune for a while probably longer than I should've it didnt run when I started and my original NA tune was to butchered to start with. any advice to get me on the right track would be appreciated.