E85 or 100 octane

[FoMoCoSHO]

What kind of numbers would you expect to get if you only added a couple of gallons of E85 to a fill up on E10 / 93 octane?

I'm at 8 gallons and 43%.

So you have 1.9 to start plus 2 more which should put you around 20ish percent.

20 ish %   Gotcha!  Sounds real interesting.  What would be a good guesstimate for the octane equivalent of that mix?

I ran it through the calculator found here...

http://www.intercepteft.com/calc.html

E-18
94.3 0ctane

[IHeartGroceries]

I have to say, anything that is mildly affordable likely is not accurate. The machines which are routinely calibrated and are approved to meet ATSM standard repeatability are tens of thousands of dollars.
We have a piece of equipment in our lab which performs both ETOH content and RON (calculated) analysis (among many, many others). Though, this particular device isn't recognized for its accuracy for either, it is a good ballpark. Its cost is over 30K.
What's more, it costs in the thousands for single sample analysis in third party labs, such as SWRI and Alcor.
My point is, anything mildly affordable is probably okay for amateur use, but don't expect any scientific results from it.


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[SHOnUup]

So I've been avoiding (phone put "the tax penalties" for next word options right there...lol) reading this thread as I'm still learning alot about our SHO. Thinking about heading to Milan today for test and tune now that the 3 bar tune is running. Do you guru's think a few gallons into a half tank would help me out a bit at the track today. Maybe I should go without mix this time and test against next time?

[FoMoCoSHO]

So I've been avoiding (phone put "the tax penalties" for next word options right there...lol) reading this thread as I'm still learning alot about our SHO. Thinking about heading to Milan today for test and tune now that the 3 bar tune is running. Do you guru's think a few gallons into a half tank would help me out a bit at the track today. Maybe I should go without mix this time and test against next time?

That would be a roughly 30 percent mix right off the bat. It will take some time for the car to trim that out....so no.

[SHOnUup]

40 miles to track?

[FoMoCoSHO]

40 miles to track?

Maybe but the bigger problem I just realized is you have a 2011. Everyone says e-85 is like kryptonite on gen 4.1 and all my experiences are on 4.2 with the updated LPFP. So my advice is slow and steady, starting at 2 gallons and seeing what happens......slowly.