Hey guys and gals was wondering as to what everyones getting with there e85+boost honda's for gas milage.

 

at 419hp daily driver i believe the most i got was 250miles on a full tank with 400whp+ honda you don't really drive the car without doing a couple 2nd and 3rd gears pulls :-p

 

I have a 2.0L B18C with GT3076R running up to ~24psi daily. I get 19-20MPG lol.

 

I saw almost 30-31mpg with the AFR leaned out to about 15.0-15.3 low load on the highway using E85, ran fine all the way to about 15.7 without any misfire's or hiccups running RC1000's. I would imagine the ID1000's would run 15.5 and leaner without running rough.

 

I'm assuming you mean gasoline equivalent to 15.x, since E85 stoich is like 9.x?

I'm going to experiment with the same thing once I wire wideband into my Hondata and setup closed loop to hover around 15.5 (equivalent) or so.

 

It doesnt matter what the stoich is of the fuel, most widebands automatically convert the stioch of the particular fuel its reading to gas AFR.... alot of people get hung up over that.

 

It can get confusing without clarification sometimes.

Anyway Im glad you posted your results about lean crusing on E85. Do you tune yourself? What did you do with the ignition timing at cruise?

I'd like to try it and find the answer to this topic to be more like your results than mine.

 

30-31? thats almost unheard of lol...

On my old 880's my best was 28mpg going on a 3hr road trip back and forth.. and that was amazing lol

My new FIC 1100's are in the 23-24 range but with more full throttle added in..i can cruise at 17.9 AFR's with them and it does not miss! crazy

 

My CR was around 8.2:1 so that might of helped some

Car was tuned by Jeff Evans, and I ran his timing tables but leaned them out from where he had them in the low load area's

 

k24 t3/61mm 21psi 523hp I usually get around 20 mpg

 

My buddy that I tuned was getting 27.5 mpg on a gsr motor stock sleeves w/ forged internals but on 93 octane though.

 

I typically saw between 17-21mpg on a 400whp stock b16 tuned with s300

 

damn maybe my odometer is off or something, my mpg's seem to be a little on the high side.

 

I average around 23mpg. 490whp, 3076r@28psi. Clearly.... If you want best mpg stay out of boost. Your foot will make a large difference

 

lol thats why i said damn when i saw yours.. thats like unheard of! when i got 28mpg my tuner was like holy **** are you sure? he didnt believe me.... 20-24 mpg is pretty GOOD on E85...

 

340whp b16, itr trans Siemens 900cc injectors I get like 17-19mpg:/ wish mine was in the 23-24 range.

 

Get a wideband and lean it out... Over 15.1 afr

 

I know my results were without boosting the car hard, just constant highway cruising with some boost in 5th just playing around passing people. At 75-80mph my car would hit 10-15psi in 5th almost instantly so it was kind of hard to not boost it at all.

 

Not turbo, but with my stock jdm gsr and jrsc. I was averaging 23-27mpg normal driving and highway. when I would do the 2 hour trip to see my girl my best was averaging about 32 mpg. that's cruising at about 70-75mph most of the time. Also on RC 550s.

 

in a couple weeks I should be able to add my turbo mpgs on e85 and fic900s.

 

afr's are already in the 15.0-15.2 range.

 

I get about 15 or so...

but then again it's not a DD and when I drive it I spend lots of time on the rev limiter lol.

 

On cruise Lean that **** out! i was serious when i said i cruise @ 17.8-17.9 lol

 

Really! isen't that a little risky

 

Thats rediculus!