Sounds like a waste of time to me... Trying to squeeze that extra 3 rwhp out of that 4.8 Corey? Lol

 

It's a disease.



But on a serious note Ford is starting to recognize where we are heading with these ethanol blended fuels as they are starting to have some of their factory calibrations setup already for E10, I will have to double check a tune file but I believe for one if I am not mistaken the new mustangs are set to 14.1 afr

 

He won't see any power out of it, just better consistency every time he goes and re-tunes it. As it is right now, all of his wideband time results in a VE table that is at least 4-5% higher than actual, which then affects the PCMs spark reference, torque calculation, etc, etc.

 

So quicker (hardly noticeable) fuel corrections and throttle response? Smoother throttle transitions?

 

Initially.

In a completely closed loop vehicle, 14.68 would yield trims in the 4-5% range assuming all else is perfect with E10. Specifying 14.1x would yield trims very close to 0.

 

I have found stoich for fuel in my area to be around 14.4 which would indicate around 5% eth. I found this by comparing trims to AFR error in steady state type conditions.

 

don't be mad that you have had EFI Live for 1+ years and you still have no idea how to use it.

But this does answer some of my questions about the side affect/ wierd issues i have seen after retuning my truck 2 weeks ago... I like messing around with tuning, so if i have time this weekend i am going to check out the differences.

 

so for 5-7% blend in my area, a 14.4ish would bring trims close to 0? and a true E10 would be 14.17 right. so my question is how much of a diff is it to tune for 14.68 vs 14.4?

 

from my understanding is that would affect your airmass calcs. for example: you would be referencing the wrong value in your spark table, thus your commanded spark value would be a little off... Also your IDC would be up a little bit too.

But i have a question. is E85 and E10 similar? Meaning E85 contains 85% ethanol, and E10 contains 10% ethanol? Or am i way off... if i am not does that mean if the airmass was correct would we be able to get away with a little more spark due to the higher octane rating of ethanol? Or do i have things completely wrong???

 

ha run the timing up until it knocks and pull it back just a hair