All I did was swap in big injectors and drained the gas. There are long term Evo's and Honda's with no problems - as far as my searches went. I don't think I've found any Miata people with E85 problems.

Yes, I am at +3° which is extremely conservative, considering my gas tune was conservative. I have a feeling I'll be able to go a lot further but just haven't put in the time to tune.

The chart converts from E85 readings to gasoline readings so you don't have to recalibrate your mind. If the wideband display read between 8 and 12 my head would hurt.

Many people tune for 14.7 cruise which is just fine. I am at 17 or leaner, this definitely made a difference to my mileage.

I shoot for 12.0 under boost. I don't really care if it drifts up or down with the differences in ethanol content. Running too rich, closer to 11.0-11.2?, increases the chance of pre-ignition. I think the Evo guys have info on this effect.

 

So we're filling up with E85 and not changing lines? That's pretty cool. Will 550cc injectors pump enough fuel for 250whp on a Walbro 255 with a stock regulator?

 

If I have any (corrosion) issues I will immediately report them.

I don't think the 550's will cut it unless you run ultra high pressure, which I'm not a fan of. The pressure vs volume specs are ugly.

What are your duty cycles now? Base pressure? Somewhere around 45psi base I was hitting almost 90% at around 250whp.

 

71% at 240whp/12psi on gasoline, I don't know the base pressure. I'd need about a 35% increase in flow so I'll need larger injectors, which I'm not buying.

 

71% multiplied by 1.3 = 92%, youll be sweet with a few more psi (maybe 10)

Dann

 

This looks pretty good read.
http://www.ls1.com/forums/showthread.php?t=33448

 

I've yet to find/see pictures of E85 carnage to the fuel system.

 

Honestly i think some of the shiny coating the fuel filler has on it is corroding off mine. Its the only shiny plated part of the system though.

Dann

 

anybody try the oxytane **** thats out? its supposed be like the lead substitute of ethanol of our time....lol... but ive read of people using it and getting a bit better milage from it........ link----> http://www.oxytane.com/

has or does anyone use any of the ethanol treatments? i got a bottle of the lucas stuff, you add like an oz of fluid per 5 gallons, the bottle should last a few fills atleast... i just figured id ask here while you guys are talking about corroding the lines and other crap....

 

E85 Carnage due to running lean.

http://www.jeepstrokers.com/forum/vi...&t=453&start=0

 

heres some other carnage from a different forum, this is more what i see people complaining about more than anything.... which is why after running e85 more than a month and about 1500 miles i thaught it might be a good idea to start using the treatment to keep **** clean inside.......lol.....see if it works i guess...lol....

http://www.turbobuick.com/forums/e85...ctor-gunk.html

 

You do know that E85 is a cleaner, not a gunk builder like gasoline right? The only carnage logically possible would be if something melted away (other than the obvious wrong combustion carnage).

My guess on what that crap is, E85 attracts moisture. The incoming air can only be cleaned by the air filter so much therefore attracting the "mud" to the tips of the injectors. Reading some more on those forums, people are reporting fuel lines and fuel rail to be spotless and clean.

 

ya i get that, i seen how clean my few year old plugs looked after running it 2 weeks..lol.... im just talking about all the **** people are throwing around the net about stuff breaking down and plugging stuff. but it wasnt much , and i just figured id try it, and throw it in every other few tanks.... id rather get the oxytane ****, but i cant get ahold of the place local i found who carries it...

 

I'd rather switch my tunning every other month for a week and run 93 than to bother with ordering snake oils online.

 

oxytane one caught my interest on a volvo forum cause they where going from a high 20 low 30mpg car to high 30s low 40s. if it works id be totally down to buy a case, its like 100 for a case and you only use a little bit of a bottle per tank. its supposed to help the ethanol burn , add power and some milage.... kinda like the one chemical people found and started putting in gas... i dont wanna go to far OT but i was just curious of others opinions on the crap...lol...

 

You see my line calling it snake oil? Yup, thats my opinion on it.

 

i also said others opinions too... lol...

 

Great information in this thread, I have been tempted to change to E85 when I pick up an ECU. San Diego has so few E85 stations which poses a problem. What kind of MPG have you seen on E85?

 

I'm planning on switching to 75% O93-25%E85 mix and see how it goes then adjust the afr, then go to 50-50, adjust then on to full e85, any one see a problem with that?

 

Just a lot more work than a straight swap, and you cnt go to a servo and buy 50-50, can you. I can see you could buy 50-50 but that would be a pain when you can just add 30% across your whole map, or with injector scaling and just tune it...why NOT do that?

Dann