I use a cheap 100ml graduated cylinder that I bought off amazon.
Fill it 50ml with ethanol then fill with water up to the 100ml mark. Use a rubber stopper or something to plug the end and shake. Let it settle and the fluids will separate. The ethanol will mix with the water and the gasoline will settle on top. Read the level at where the two mixtures are separated. The math would go something like this: ((Level where fluids are separated / Orig Amt Water (50ml))-1

So if you have a 100ml grad cylinder, use 50ml ethanol, 50ml water, shake, the new level where mixture separates = say 90ml (90/50)-1 = 0.8 or 80% Ethanol

Use the flash on knock light and monitor your afr's. I think there is a website somewhere that lists the time of year where different regions in the US make the switch to E70 for cold weather and back to E85 for warmer weather. Make your tests during these times or just switch back to 93.

Good luck

 

Do you have a link to this thread or any info on it?

 

http://www.dsm-ezine.com/evoVIII_adc_switch.html

 

That is just the regular map switch kit, I was assuming he was referring to a new kit that has an e85 sensor in the gas tank and calibrates your octane level based on the mix of e85 vs. 93 octane gas.

 

That was what I thought you were asking for.....my bad.

There is a patch mrfred will be releasing...but you will have to have the zietronix ethanol analyzer + ethanol sensor.

 

How do you set this up?

 

^+1

 

Tephra mod v5.1

If you see the light coming on when you did not make any ecu or physical changes to the car its a good indicator to check something out (like the fuel) ie something changed to make the car start knocking and trigger the light. Note: You need to start with a good tune.

Read up on the Tephra mods to learn about this feature.

 

Oh I was just referring to the duel maps switching kit. Mrfred is working on something but nothing else along those lines are available.

 

This is very educating.

I am learning more and more.

Thanks guys.