i want to see your timing map and fuel map

 

I second that lol. What kind of terrain are you driving on also? Flatlands, hills, mountains ect.

 

I just got 20mpg on e85 my last tank. I have an Evo 9 MR, FPRed, all supporting mods, 480hp, speed density.

 

I am setup for dual maps tuned at FFTEC tuned through ECU flash and on my 91 octane map I generally get 17mpg city & 22mpg highway. On e85 I averaged around 15mpg 50% city 50% highway. Mind you my e85 map is a base map and I am running the Evo IX turbo, I am waiting for cam and valvetrain before I go to retune.

 

on my recent trip i got an avarage of 280-290 per tank. From okc to az and back on 91oct. In cruise the rom is 15.4. I ran rc 1200cc injectors and a single wally with gt3582r. Just switched to e85 again and hoping i get 250 miles on highway and 200 city.

 

after a bit more cruise tuning (more mivec, leaner cruise afr, new plugs), taking more advantage of decel fuel cut, and spending a bit less time warming up the motor, i'm back up to 17.2 mpg which equates to 200 miles of mixed city/highway driving when the low fuel light turns on.

 

12-14 city 18-20 highway