E85
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This is a discussion on E85 within the New Member Hangout forums, part of the Community - Meet other Enthusiasts category; Anyone know the exact things I need to run E85? I know I need upgraded injectors, but how would i ...

  1. #1
    Registered User anpato's Avatar
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    E85

    Anyone know the exact things I need to run E85? I know I need upgraded injectors, but how would i Convert to Top feed and what kind of pump would I need?
    2013 SWP WRX Sedan
    Hillside, NJ
    Invidia Catless Downpipe, Custom Short Ram Intake, Self Tuned Using ECU Flash, Romraider and Tactrix

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    Master Baiter EJ257's Avatar
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    You have top-feed injectors stock

    Injectors
    Ethanol-compatible fuel pump
    WBO2 / ECA gauges
    Retune
    2005 WRX STi (Mods | Virtual Dyno)

    Resident Tuner @ WTF Tuning, LLC

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    Luke Skywalker Mikie13's Avatar
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    Quote Originally Posted by anpato View Post
    Anyone know the exact things I need to run E85?
    E85.
    The Hawk-Eye Alliance #90|The Blobeye Syndicate #0|The Stink-Eye Mob #0|N.E.R.D. Founding Member & #3
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    Registered User anpato's Avatar
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    Quote Originally Posted by EJ257 View Post
    You have top-feed injectors stock

    Injectors
    Ethanol-compatible fuel pump
    WBO2 / ECA gauges
    Retune
    What pump do you recommend.
    2013 SWP WRX Sedan
    Hillside, NJ
    Invidia Catless Downpipe, Custom Short Ram Intake, Self Tuned Using ECU Flash, Romraider and Tactrix

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    Subaru Newb MainFrame's Avatar
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    Quote Originally Posted by anpato View Post
    Anyone know the exact things I need to run E85? I know I need upgraded injectors, but how would i Convert to Top feed and what kind of pump would I need?

    Unless your car is a 2004-2006 STi, or 2005-2006 LGT you already have top feed injectors.



    The cheapest pump is probably the Walbro 255lph. There are also Deatschwerks pumps (300) that specifically state they are e85 compatible and don't cost too much more. All you really need is 30-40% higher flowing injectors, a fuel pump capable of keeping up with the increased demand, and a tune.

  7. #6
    Registered User starkall's Avatar
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    E85

    I ran a DW. 65c fuel pump on e85 in my 2011 wrx

  8. #7
    Registered User anpato's Avatar
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    Quote Originally Posted by starkall View Post
    I ran a DW. 65c fuel pump on e85 in my 2011 wrx
    How long did you run straight e85? I just read that e85 will really mess your car up.
    2013 SWP WRX Sedan
    Hillside, NJ
    Invidia Catless Downpipe, Custom Short Ram Intake, Self Tuned Using ECU Flash, Romraider and Tactrix

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    Registered User starkall's Avatar
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    E85

    About 10k miles. No problems at all.

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    Subaru Newb MainFrame's Avatar
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    Quote Originally Posted by anpato View Post
    How long did you run straight e85? I just read that e85 will really mess your car up.


    If your car is from the 70s, yeah, it will mess it up. Every car manufactured after 1986 or so is designed to be ethanol compatible. You just can't run it without being tuned specifically for it.

  11. #10
    Registered User anpato's Avatar
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    Quote Originally Posted by MainFrame View Post
    If your car is from the 70s, yeah, it will mess it up. Every car manufactured after 1986 or so is designed to be ethanol compatible. You just can't run it without being tuned specifically for it.
    I went over to NASIOC and right now im running about 20% ethanol and the rest 93 octane, I cant wait to run full e85
    2013 SWP WRX Sedan
    Hillside, NJ
    Invidia Catless Downpipe, Custom Short Ram Intake, Self Tuned Using ECU Flash, Romraider and Tactrix

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    Subaru Newb MainFrame's Avatar
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    Who's doing your tuning?

  13. #12
    Registered User anpato's Avatar
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    Quote Originally Posted by MainFrame View Post
    Who's doing your tuning?
    Noone as of yet, they said I should be safe running a low percentage of e85 mixed with fuel and not require a tune, however once I go full e85 im probably going to Precision Tuning in Jersey.
    2013 SWP WRX Sedan
    Hillside, NJ
    Invidia Catless Downpipe, Custom Short Ram Intake, Self Tuned Using ECU Flash, Romraider and Tactrix

  14. #13
    Subaru Newb MainFrame's Avatar
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    What's your AFR with e20? I would think that much is starting to push it dangerously lean.

  15. #14
    Registered User anpato's Avatar
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    Quote Originally Posted by MainFrame View Post
    What's your AFR with e20? I would think that much is starting to push it dangerously lean.
    Not sure, but the car is running pretty good, atleast thats what my butt dyno says. lol
    2013 SWP WRX Sedan
    Hillside, NJ
    Invidia Catless Downpipe, Custom Short Ram Intake, Self Tuned Using ECU Flash, Romraider and Tactrix

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    Subaru Newb MainFrame's Avatar
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    Yea.. but the butt dyno doesn't tell you you're burning valves or stressing the #4 ringland until it fails and the motor is trash.


    I would at least data log it to be sure you're not damaging anything. e20 is about as far as I would feel comfortable without a specific tune, but only if my data logs checked out good.

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