Quote:
Originally Posted by Zadok
Hey Mikey!
I just installed my id1050x***8217;s with a custom parallel/equal length fuel system and want to run an E30 map. How sensitive is the parameters for Subaru with correcting the a/f if I***8217;m not flex fueling it?
My bmw is smart enough to adjust if I***8217;m a little bit off. I just make sure the gas/ethanol mix always fairs on the gas side. Now, that***8217;s not saying I don***8217;t calculate the mix to be as accurate as possible. But it***8217;s never going to be perfect without a flex fuel system to adjust for it. With that being said, I always run the mix fat on the gas side so it doesn***8217;t melt my pistons. Too much E and things die. Too much gas and it just runs like ****. So, what***8217;s your take on this for an ej20y swapped Baja on a fxt Ecu. This should be interesting. LOL!
Thats a whole can of worms that i would advise against experimenting with unless you are in there re-tuning for E30. The ECU has literally ZERO ability to detect OR correct fuel deviations within open loop (WOT boost), and relies entirely upon what the input from various tables such as injector flow, offsets, and airflow calculations (be that MAF or SD). If said tables are tuned to e0-10 pump gas, things will surely shift under use of E30, in terms of being leaner. In terms of how sensitive, im not sure what you mean exactly. If you are runnig E30, use the ID050 excel spreadsheet provided by injector dynamics upon that which you enter fuel pressure and ethanol content, and it recalculates a rough estimate of where all your background settings should be set to in terms of pulse widths and offsets.
You can run every calculation you want on paper, but execution in the real world is a different animal. As far as running on the "fatter" side of things, what AF ratio under heavy loads were you considering to be "fat" ?
-Mikey