I have a friend with a 2015 S550 Mustang that currently has a Kenne Bell 2.8 with a trunk mounted ice box and American Racing long tube headers on it. We are now installing a Fore triple pump hat and complete return fuel system, along with a set of ID1050x injectors. the plan is to run a smaller pulley and e85.
It seems like the Ford Flex Fuel strategy is quite a bit different from the GM cars I've done in the past. I have read a bunch of threads on it and I think I understand most of it, but I want a little bit of clarification.
Fir the actual Flex Fuel settings, I copied the values from a F150 that had it enabled from the factory. Here is what I came up with. Is there anything I need to do to make this work correctly in the Mustang?
FF Tables.png
The main area where I'm a little fuzzy is adding ignition timing. The GM cars have an actual Flex Fuel Advance table that it adds from, but I don't see anything like that in the Mustang file. Is the timing added automaticly via the knock sensors? What does the "Flex Fuel Blending vs. Ethanol %" table blend together? I couldn't find any relevant information in regards to that.
I attached the tune I am working with for anyone to take a look at. All it is at this point is the file that comes with the Kenne Bell kit that I changed to accommodate the boost referenced return fuel system, the larger injectors, and flex fuel. It's really just something to get the car running once all the parts are done being install.
2015 GT KB_ID1000_Flex Fuel_Fore.hpt