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Old 08-25-2013, 08:36 AM   #15
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Originally Posted by Sportsguy83 View Post
There are tons of STI/WRX running E85 only for years, no issues. Our fuel system uses same components as those cars.
Except for that whole high pressure fuel system and direct injection thing. Minor detail though.
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Old 08-25-2013, 08:39 AM   #16
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Originally Posted by arghx7 View Post
Except for that whole high pressure fuel system and direct injection thing. Minor detail though.
Oh yes, FI system is different becuase of DI, but when I said components I mean materials. Those cars have the same material on the fuel lines, same filter inside he in tank fuel pump canister, and such.
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Old 08-25-2013, 08:40 AM   #17
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Either the search engine is not very good, or there isn't a single thread on this whole site with "E85" in the title. That doesn't seem right. Anyway...
Your search failed because the keyword was too short Best way to search is to use google in the format "E85 site:www.ft86club.com/forums/"

I did an E85 how to for BRZedit a couple months ago.

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Pending a local gas station responding to my email and confirming they do indeed offer E85,
There are several web sites that you can use to locate E85 stations and iphone / android apps as well.

Here is a government site for example:

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What all needs to be done for a proper, long term, 100% E85 setup? I know you can just get a tune and go, but I want to do it right.
I think the general consensus these days is that all modern vehicles can run E85 without any long term issues, assuming your supply is always clean. If your supply is contaminated you can get some nasty gunk build up on the injectors and the valves. The solution to the gunk is to run a tank of regular premium gasoline every couple months.


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Is a tune alone all I need for smooth running performance and longevity, or should I seriously consider injectors, sensors, etc.? If so, what makes the additional parts necessary?
E85 requires about 30 - 35% more fuel to be injected than pump gas does. If your fuel system has the headroom all you need is a tune to scale the injectors for the added fuel delivery. Our fuel systems have enough headroom if you stay naturally aspirated, if you go forced induction, your will need to upgrade the port injectors.


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I believe I read somewhere that E85 doesn't get as good of mileage per gallon as regular gasoline.
This is true. To over simplify it E85 requires 30 - 35% more fuel to reach it's stoich point (ideal ratio of fuel to oxygen for complete combustion) than gasoline does. As a result you need to re calibrate the ecu for the additional fuel flow and you will loose some MPG. In the real world i am seeing about a 20% max drop in gas mileage.

E85 is a higher octane fuel and it is oxygenated, since you burn more of it, you make more power just by using it. You also make more power by optimizing the tune to take advantage of the higher octane. As a result, you use less throttle for cruising than gasoline so the mileage drop is not as bad as the additional fuel requirement would lead you to believe.


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I'm also open to and would appreciate any other insight to the mysterious world of E85-onlyness.
You need to decide if E85 is readily available enough to you for you to run it all the time. It's not quite as simple as flashing back to a pump gas map and filling up with 93 if you get stuck in an area without E85. It is, but, you really need to run the tank down as much as you possibly can to avoid fuel trim issues etc. Same is true when you go back to E85 from pump gas.

Flex Fuel kits allow you you mix and match at will but the convenience comes at a high price.

Some of the reputable tuners that offer E85 tunes are Delicious tuning, FA20club (also offers a flex fuel kit), Moto-East. Personally, i would avoid visconti. IF you are a DIY guy you can buy BRZedit and follow my E85 How To and do your own corn tune
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Old 08-25-2013, 08:51 AM   #18
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There are several web sites that you can use to locate E85 stations and iphone / android apps as well.

Here is a government site for example:

...

You need to decide if E85 is readily available enough to you for you to run it all the time.
Thanks so much! Very good response. That link you posted doesn't have the station I have in mind. Of all the websites I've looked at, which is about 10, my station shows up on about 4 of them. That's why I'm not so sure about it. I'm hoping it's just new and not all of the sites' databases have it yet.

And this is a project car, so being doomed to using just one gas station for a really long time is no problem at all. I'll continue to rock the E0 in my daily driver.
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Old 08-25-2013, 08:58 AM   #19
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Fa20 ALL THE WAY!!!!
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Old 08-25-2013, 09:04 AM   #20
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Fa20 ALL THE WAY!!!!
Hahaha aaaand the drunk guy bursts into the room.
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Old 08-25-2013, 09:15 AM   #21
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If it makes you feel any better, I've been running E85 with a @Visconti tune sine December 2012 with 0 issues. I recently switched back to pump gas purely for the sake of trying the newest pump gas tune and see how it is compared to the original one I got. Once this tank runs dry, I'm going back to E85.

I have a fully stock fuel system.
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Old 08-25-2013, 09:23 AM   #22
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If it makes you feel any better, I've been running E85 with a @Visconti tune sine December 2012 with 0 issues. I recently switched back to pump gas purely for the sake of trying the newest pump gas tune and see how it is compared to the original one I got. Once this tank runs dry, I'm going back to E85.

I have a fully stock fuel system.
Well, between your, Sportsguy83, and mad_sb's comments I'm feeling pretty comfortable with the idea. I had already figured it was a pretty safe deal, I'm just trying to be really meticulous about it - prevent any long term problems by upgrading anything that needs it from the beginning.
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Old 08-25-2013, 09:26 AM   #23
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The only reason to need upgraded injectors/pump with E85 is if you are installing an FI kit at the same time. Stock injectors and pump can't can't pump enough fuel into the car to take full advantage of more air. If you're staying NA, you GTG.
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Old 08-25-2013, 09:28 AM   #24
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neither the Visconti kit, which last I checked had something to do with cutting an OE fuel line with pipe cutters, wtf

and the fa20 kit appears to be barb based, and fwiw, its better in the way of connections but not best

I'm running e85 on my car with OE pump and injectors, go figure
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Old 08-25-2013, 09:30 AM   #25
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neither the Visconti kit
wat
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Old 08-25-2013, 09:46 AM   #26
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Originally Posted by 448hpsti View Post
neither the Visconti kit, which last I checked had something to do with cutting an OE fuel line with pipe cutters, wtf

and the fa20 kit appears to be barb based, and fwiw, its better in the way of connections but not best

I'm running e85 on my car with OE pump and injectors, go figure
He will not install a flex fuel kit, he only wants to run E85 on his stock fuel system.
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Old 08-25-2013, 11:09 AM   #27
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Fa20 ALL THE WAY!!!!
I AGREE!! Been using e85 before and after my turbo no problems here $3.19 a gallon !! beats 4.02 for pump93 IMO
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Old 08-25-2013, 11:29 AM   #28
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Originally Posted by Anthony View Post
Thanks so much! Very good response. That link you posted doesn't have the station I have in mind. Of all the websites I've looked at, which is about 10, my station shows up on about 4 of them. That's why I'm not so sure about it. I'm hoping it's just new and not all of the sites' databases have it yet.

And this is a project car, so being doomed to using just one gas station for a really long time is no problem at all. I'll continue to rock the E0 in my daily driver.
Where are you finding E0?
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please make sure to leave your experiences with visconti on his feedback thread located here: Visconti feedback
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