Quote from: ajpturbo on August 04, 2015, 11:35:03 PM
Regular fuel is how I run now at those boost levels....I would like to add a 3-5 degrees timing and use VP street blaze as a race tune...That fuel has a similar stoic point to pump E10 fuel of about 14.1 ish or so. So fuel delivery should not be as much of a problem as the higher E fuels  due to their stoich being like 9 something or whatever E85 is

How much experimenting have you done with the corn?

Played with any in tank meth?

Depending on your build date you may have meth tolerant injector seals...

Yeah I figured you were messing with me lol.

I haven't messed with any corn or meth. Just 93 Sunoco that is up to E10 supposedly. It's a busy station around me and the only one I use as it seems to be reliable.

I really don't know how to scale the tune properly for higher E content and make the stft's level off...There are things I could do such as add fuel globally to the tune but that's not really the correct way. You need to change the slopes and intercepts and the MAP sensor and I don't know which way to change them. And I know at high boost levels my fuel pressure would drop too much as it already gets scary low with normal gas....I think the corn is best for moderate boost and allows you more spark advance but when you push boost to the maxx you we just can't get the volume of fuel from our fuel system alone....my main problem at the high boost is the fuel pressure  not pre ignition resistance

WIth these new ECM's and all the things you can change sometimes there is more than 1 way to get a result but it's not always the correct way and I 've had the bandaid changes made to my tunes before and I was told that it was the way to go then other tuners showed me the light lol....They pointed out what was wrong and the proper way to do things....That's why I got into my own tuning because I've paid pros before then had other pros tell me my tune was all jacked up....It can be hard to know who is telling the truth but a couple that I've worked with actually took the time to show me why what the other tuner did wasn't right or how it was inadequate.

That experience was from my mustang not the SHO

Quote from: ajpturbo on August 05, 2015, 12:07:49 AM
Yeah I figured you were messing with me lol.

I haven't messed with any corn or meth. Just 93 Sunoco that is up to E10 supposedly. It's a busy station around me and the only one I use as it seems to be reliable.

I really don't know how to scale the tune properly for higher E content and make the stft's level off...There are things I could do such as add fuel globally to the tune but that's not really the correct way. You need to change the slopes and intercepts and the MAP sensor and I don't know which way to change them. And I know at high boost levels my fuel pressure would drop too much as it already gets scary low with normal gas....I think the corn is best for moderate boost and allows you more spark advance but when you push boost to the maxx you we just can't get the volume of fuel from our fuel system alone....my main problem at the high boost is the fuel pressure  not pre ignition resistance

WIth these new ECM's and all the things you can change sometimes there is more than 1 way to get a result but it's not always the correct way and I 've had the bandaid changes made to my tunes before and I was told that it was the way to go then other tuners showed me the light lol....They pointed out what was wrong and the proper way to do things....That's why I got into my own tuning because I've paid pros before then had other pros tell me my tune was all jacked up....It can be hard to know who is telling the truth but a couple that I've worked with actually took the time to show me why what the other tuner did wasn't right or how it was inadequate.

That experience was from my mustang not the SHO

There is a bunch of info on this on the mazdaspeed forums...