Hoping someone can help me. I am trying to swap Demon Injectors into my 2007 300C 5.7L w/ Edelbrock Eforce. I plan on going E85 soon and will require the larger injectors.
I have read on several threads on swapping to larger injectors, including - Injector Tuning... What I have seen people do is take the New Injector Flow Rate divided by the Original Injector Flow Rate then multiply that by the Fuel Mass in the PW vs Fuel Mass & Fuel Mass vs PW tables.
The injectors that came with the Eforce Kit are 46 lb/hr and the Demon Injectors are 66.7 lb/hr
So 66.7 / 46 = 1.45 x Fuel Mass values
I then reset my all adaptives to reset the fuel trims and logged but now I am getting very high fuel trims (-15) and not sure where to go from here. My AFR at cold start is 13.8 & after it learns some Fuel Trims settles around 14.7 but any touch of the gas it will go rich @ 12ish & then lean to 17-18.
I believe I need to log the Fuel Mass vs Short Term Fuel Trims and adjust the fuel mass accordingly. But I'm not sure exactly, there are many different posts and I don't fully understand what I need to do.
Another thought would be to take the Demon Injector PW values from a Stock Demon tune and modify them to work for my application.
I have attached my best tune with the 46lb injectors & a stock Demon tune....Any help would be greatly appreciated!