Jorgens

Ok, so I've been reading the E85 stuff all day and would like to convert over. can I run it if I don't get a tune for say 1,000 miles? I know the ses light will throw a code and I don't really get into the throttle more than 1/2 at any given time. I mostly drive highway but would like to see how it goes. I alternated tanks in my bird for about 60k miles and put 155k on that engine and still runnng strong. I will get a tune eventually just not possible right now. Also planning other bolt ons so would like to wait till I have those completed for a tune.

Thoughts?

arob987

iTrader: (9)

it will not run with out a tune it will be to lean.it takes 30% more e85 than gas to run.i doubt it would even start

Grr

iTrader: (2)

wont work for ****, I run E85 in mine and gas, it wont even make it out of the gas station if I dont load the E85 setup in

Jorgens

Alrighty then, I'll line up a tune first. Thanks gang

BrianSF-GA

I hope your desire to run E85 is a performance advantage and not as a daily driver to "save gas". I have absolutely no experience with fbodies on E85, but I can say that I ran a tank full of E85 in a "flex-fuel" Silverado I once had while on a trip .... the average mileage dropped by 5 mpg for the tankfull via the trip computer on the highway!

I realize it is 104 octane, so those that do run it on occasion, do you have dyno comparisons. I am curious how much more power you can get out it of a "dual-tune" without a build specific to E85.

Stumped1215

iTrader: (9)

I wonder if a flex-fuel vehicle increases the timing when you are running the e-85?

arob987

iTrader: (9)

i believe they do since it usually takes more timing to burn e85 correctly

Jorgens

I am looking for the performance increase. As opposed to flex fuel vehicles that may not have the high compression we do, milage suffers more. I'd like to get a set of heads that will give a tad higher compression with the ability to add some boost down the line. Not to mention a cleaner fuel and +1 for American made to boot. In all it just seems to be a better choice for my preference. And of couse if we're going to switch, I'd like to get on it to watch the performance from square one per say....

5.3blazer

yeah e85 is nice with boost but mpg not so much,im getting 11 city 15.2 highway