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Thread: Ls3 Log e85 boost target AFR WOT

  1. #1
    Tuner in Training
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    Aug 2023
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    Ls3 Log e85 boost target AFR WOT

    Trying to get dialed in under wot. What are you guys running for e and boost on LS motors? Around .72-.73 at tip in then rises toward commanded .78 in the higher rpm.

  2. #2
    Senior Tuner Lakegoat's Avatar
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    Jul 2012
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    For Alcohol Boost Enrichment EQ, I use 1.23 across. That's 11.9 AFR or .81 Lambda. If that's a little too lean, then use 1.25 or larger. If stock pistons, use 1.26. For gas, use 1.27 or 1.28. I don't know what you mean by tip in, but if I have my foot on the floor, and map gets to 105kpa, I want my Full PE kicked in. You just have to tune the maf and VE to match commanded.
    2000 Camaro SS 2015 L83 port injected, Whipple 3.0, 4L80E, 8.8 Ford
    2013 Silverado 5.3, 6L80k 8.8