Well it looks like I have no more left to improve FE as far as the engine/car goes. As the weather gets colder my FE is dropping even with my single valve swirl mod.
The AWD parasitic drag on all the drive-train when cold just kills the FE. After looking at my data logs I'm needing more HP at the wheels to keep at my cruise speed.
So around 43mpg average is all the Mistfit Talon has in her.
My goal was 50 mpg, so I'm a ways off. So now its time to put all my energy into the Insight and get a game plan this weekend to see what I will do with it.