View Single Post
      01-12-2013, 09:35 PM   #10

Drives: 2007 E93 335i Black Sapphire
Join Date: Dec 2012
Location: USA

iTrader: (2)

I'll be using the JB4 "Autotune Map" which can raise boost to as much as 16 psi.

From what I've seen 49% of pure E85 is the safety threshold for the n54 cars. A 35-65 ratio is considered the average safe ratio.

I'm not sure technically how effective it is in one area or another but it does tend to do 2 things consistently; increase power and decrease mpg.

I'm shooting for roughly a 20-80 ratio on first attempt just to see if any issues pop up. If everything goes well I'll try the 35-65 ratio and get a dyno run of that.