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  1. #1
    imp0ster's Avatar
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    fuel skew & target AFR for e85

    Now that there is a e85 station within about 5 miles of me it's an option. Normally I add 25%-30% fuel, a butt load of timing and tune from there but I'm unsure of the AFRs on these machines. I'm sitting at 13.5 idle to 12.2 WOT @ 8300RPM with a nice curve leading to that with an X-SC. I assume 13.2 idle to 11.5 WOT @ 8300 would be a safe place to start.

    Can anyone verify this? I have no way of logging EGTs and I only run IAT, Boost & AFR gauges. No current data logging.


  2. #2
    AWA MEMBER
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    E85 runs wayy richer than that, I thought

  3. #3
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    I figured it was in the range of 6-10afr

  4. #4
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    Found this in my stuff
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  5. #5
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    More and more guys at the drag strip are running it, and steering away from VP or sunoco 110

  6. #6
    AWA MEMBER
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    So I would think with your O2 meter set to E85...... 6.2-5 wide open and 8.5-9.5 at idle, I may be wrong as we just started using it in the drag truck

  7. #7
    shrabber's Avatar
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    Your gonna need a bigger fuel pump and bigger injectors. Pony up bud and let the drama begin honestly for what you got in mods save your self the headache...

  8. #8
    imp0ster's Avatar
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    I have an aeromotive 340 and 50s. I might just not do it. a 5 miles drive isn't bad but the location is a bitch

  9. #9
    boost junkie skidoochris's Avatar
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    you will be fine with that fuel pump, but I bet your 50lbs wont get you past about 5psi boost
    also use the same(as gas) afr numbers because it is based on stoich, but you can run more timing
    what kills a fuel pump is high fuel psi
    Last edited by skidoochris; 08-23-2013 at 09:57 PM.

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