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A/F at WOT

Discussion in 'The Distillery' started by slo984now, Mar 5, 2019.

  1. slo984now

    slo984now AKA 01yellerCobra Established Member

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    So it's looking more and more like I'll be running E85 by the end of the year. At least part of the time. Something I'm not totally sure about is what to set the fuel table to when I to do run it. I know stoic is 9.8ish. (I think I saw 9.785 somewhere) But what are people running at WOT? I'm currently at .78 (11.5) for gas. That puts me around 7.6 for E85. I thought I saw somewhere I needed to be around 6.9 for E85 which is .71ish. Is the 7.6 too lean?
     
  2. decipha

    decipha EFI Dyno Tuning Established Member

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    yes wayy too lean on e85. Set the stoich afr scalar to e85 in your tune 9.765

    drop your wot commanded lambda by 0.05 lambda

    so 0.78 - 0.05 == 0.73

    keep in mind e85 is oxygenated so usually adding more fuel makes more power. Max power lambda for e85 is usually 0.68 but thats only if your engine can tolerate and wants it that rich.
     
  3. slo984now

    slo984now AKA 01yellerCobra Established Member

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    Thanks again decipha. That's what I needed to know.
     
  4. BLOWN9646

    BLOWN9646 E85 COBRA Established Member

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    Do it..been on E85 almost 4 yrs and haven't switched back to the 93 tune
     
  5. slo984now

    slo984now AKA 01yellerCobra Established Member

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    I will. Need to get the stuff first. I ordered a Fore L2 system through MalcolmV8 on here. The only reason I say it won't be all the time is because I do drive my car long distances. Like 300 miles at a stretch sometimes and don't want to deal with finding an E85 station at that time.
     
    BLOWN9646 likes this.

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