So i'm going to get the 80s very soon to convert to e85. so i have 2005 cobalt ss/sc are you guys sure that all i need is the 80s and tune?

 

yes u want a tuner?

 

yeah, they just need mower psi's not e85!!!!

or use e85 tune on 87 octane for ultimates boostes!!!!

 

Yes. Only thing I would change with your setup is go up a pulley size or 2 but that is just my opinion.

 

only problem I run into is I wish my gas tank was bigger. otherwise your gonna have to plan all your trips.

 

Yeah. Gas mileage is noticably worse. I used to get 20+ mpg city, now I get 15, ALMOST squeezed out 16mpg last week. In the midst of winter I was getting 12mpg city.

Cold start can be a problem, but it can also be ironed out with proper tuning.

 

alleycat are you a girl? im trying to figure this out!

 

Yes, I am.

 

oh my....

 

i just drove to NE ohio on e-85. averaged 22mpg

 

Last fall at Road America I was using a half a tank in one 20 minute session. I was getting about 6 miles to the gallon.

 

yeah i wasnt doing much gassing lol.. it was more like boost to 80mph and set the cruise

 

Best I've gotten on E was 19mpg pure highway. But I had 3 passengers in the car and we lika da boost.

Sounds about right. I get 8-10 on dino fuel at BeaveRun. Only thing that sucks there is unless you bring drums, there's no place to replenish on E.

 

i had one passanger, but two extra front seats but yeah 19 sounds right for boosting around. i think i averaged 18 when i was driving to put-in-bay but i was flying and weaving last year

 

I got 19-21mpg all last summer and fall on E in the city. Only time I took it on the highway I also ran down the dragstrip 4 times and sat in the staging lanes so I got like 22mpg. In the winter I got 15-17mpg.

 

.........show off......

 

Just throwing some facts in there

When I drive in town im like a grandpa though, for me its either nice and easy or ***** out...no in between lol! Im messing with partial throttle timing this year a little see what I can get out of it MPG wise since last year I wasnt running much timing in the top left corner area of the timing table.

 

My mileage is getting better. I think they stepped up from the E70 though. I got OK mileage early last fall on it, then over the winter it just went to hell, now it's significantly getting better. I'm guessing the seasonal mix is what's doing it.

The problem with my commute is there are stretches where it's just asking to be opened up. That and I usually have to gas it and do some major league avoidance measures to avoid the elderly that decide to torture commuters by driving in rush hour.

 

Yeah I have those times where it feels like a sin NOT to open her up a bit

You should actually get worse mileage with a higher ethanol content, so if you are seeing better mileage I would bet its starting to warm up outside where you live. I always notice my mileage getting significantly better when the warmer temps move in.

 

Yeah, it's been a good 20 degrees warmer this tank than last. I guess that does make more sense that it'd burn faster with more E. I know it's something, cause I haven't changed my driving style and I magically gained 3mpg. The boyfriend was complaining this weekend because he took it to run errands Saturday and ended up burning 1/2 a tank, so I made him fill it up. I got another plea to put it back on dino fuel. I just overall like how it runs on E. I'm just addicted to moar powah.

 

Yeah I hear ya, I luh dat powah My car wont go back on dino fuel until its time to sell it lol

 

Irony of ironies, I have to put it on dino fuel for the race track. No E available for like a 40 mile radius and it usually takes about 3 tanks of gas for a full track day. Maybe I can convince Wes to load up on a 55 gallon drum and haul it up in the back of the PT Cruiser

 

Do what ya gotta do to make it happen

 

In all fairness everyones mpg's are going to be different because of mods, how they use their right foot, and who tuned the car. Average range is probably mid 20's max to mid teens.