You are confusing fuel volume with AFR. The scaling changes so that Stoich stays the same with the different fuel (E85) Stoich is Stoich is Stoich.

Closed loop with proper injector scaling uses fuel trims on E85 the same way it does on pump gas.

 

I know that! I was only quoting that backfire issue and I did say load change and you do not use load change in closed loop!

 

Funny thing is I switched to FIC 1050's and that whole backfire/pop issue is gone..... I didn't change anything else, just injectors.

 

probably was the latency's off a little then!

 

No! It was the same tuner every time! The latencies were where they should for good feedback conrol! Now do you see how ****ing annoying it is when people use exclamation points with every ****ing sentence! See how I did that! Even when I should be using a question mark I used an exclamation point! Are you perhaps related to Mike Huml!

 

Haha!! The backfiring fixed itself w/ new injectors!

 

+!

 

load doesn't change in closed loop? That's news to me!

 

guys i get backfire all the time...

1050's + 93oct...

happens when in cruise overrun for a little bit then get back on the throttle quickly.. 25% of the time maybe

OR when im thrashing it and change gear it will pop as well...

 

Yeah I think injectors like the 1050's and 1150's don't like low PW action. They for sure aren't perfectly linear and have a drastic bit of nonlinearity at somewhere slightly below 1ms I've noticed. Unfortunately we spend a lot of time around there. I think the injectors also seem to suffer from a tick of hysteresis. I have no data, but just how they act. If you are going from high PW to sub 1ms PW they tend to go "rich" like they are opening/closing better than if you were say sitting and idling in a low PW state for a period of time. Oh well, I'm willing to live with it.

 

Has anybody here had any longterm negative affects of using E-85? (ie corrosion etc)

 

No.

Take a look at this thread: Who has been using E85 the longest.