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  1. #1
    Roll Tide!! SeadooTech's Avatar
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    Anyone running e85

    E85 is available here locally and a lot of drag cars are running it.... lower engine temps, higher resistance to detonation aprox 105 octane, burns cleaner so less deposits in combustion chamber and in oil.... a lot cheaper than race fuel... I know you have to increase fuel delivery by about 30% but I've seen 2 pistons I the last week crack in half due to detonation and its not pretty...... so has anyone had any luck with e85


  2. #2
    Interested in this as well. I run E85 in my turbo Camaro with great results.

  3. #3
    shrabber's Avatar
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    Anything with Higher Octane will Produce Less Detonation like anything else. E85 you will Have to Increase Fuel, Bigger Injectors,Fuel Pump and I would Definately advise to go with a aftermarket Ecu with Full Timming adjustability. I think E85 Is a good Fuel Safe On Motor Lower Burning Points but It does have a bad Habbit of retaining Moisture leading to Inconsistantsy. I would Look into Higher Octane Fuel and A more Adjustable Ecu. Right Now Im running Pump Gas and 20 Psi Boost with No Issues

  4. #4
    E85 is very inconsistent and difficult to tune unless the system is designed to measure the Exx content.

  5. #5
    Roll Tide!! SeadooTech's Avatar
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    Ahhh.... OK.... shrab ur running 93 with no additives?

  6. #6
    imp0ster's Avatar
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    better fuel pump, larger injectors, a way to control fueling and a way to measure AFRs and you're golden. You need to go way richer to compensate for that fuel. In a boosted 3.8 I went from a max of 11.4 to 10.8. V-TECH will know where to put the ski at but I'd assume mid 11s WOT would be fine with a stock X-SC since 12.2 seems to run nicely. Definitely verify that though

  7. #7
    boost junkie skidoochris's Avatar
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    shrabber your loosing so much hp running pump junk
    the 1/3 number is way off that number is for NA
    its closer to 50% under higher boost
    so to take advantage of the extra octane with the stock ecu I use a voltage clamp so the ecu keeps the advance up
    when using the motec you can add lots of timing
    here in the north the ethanol amount can be as low as 70% but the lowest I have ever tested was 80% in mid January and as high as 90%
    Andy the fix for X factor is testing every time you get fuel and my fix is getting my ethanol from the factory where they never change the %
    I use the walbro replacement pump and it is keeping up good with 51psi base
    and use all of my 110lbs injectors @ 16.5 lbs boost and 8500 rpms
    I have run 25psi on custom blended e-85 @ 9000+ rpms
    Last edited by skidoochris; 08-21-2013 at 09:09 PM.

  8. #8
    shrabber's Avatar
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    Quote Originally Posted by SeadooTech View Post
    Ahhh.... OK.... shrab ur running 93 with no additives?
    Pump gas no additives. I do have a secret Shrabber mix .

    Ski the beauty of a motec is the ability to achieve the maximum with what you use. Since I'm still in the fill in the pieces mode I choose to get it where I want it. My statement was in general that pump gas can be run on higher boost applications (with the right surrounding components) All I need to do is throw in my Shrabber mix and change my map ahhh motec. If I need power I look in my front glove compartment
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  9. #9
    boost junkie skidoochris's Avatar
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    hell ya that's the additive worth a big ass grin

  10. #10
    Roll Tide!! SeadooTech's Avatar
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    Shrab have u ever ran the bottle with a supercharger? I know why people run it with turbos..... direct port? Wet?

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