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E10 and tuning

Discussion in 'ECU's, Electronics, and Tuning' started by awptickes, Jun 16, 2008.

  1. awptickes

    awptickes unimpressed by you VIP

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    So, now that I understand why my car has not been making the power it used to now that they've switched the gasoline to a 10% ethanol blend, what does everyone else do?

    Here's what I figure:
    100% Normal gasoline = 14.7:1
    100% Ethanol = 9:1

    So, 90% gasoline + 10% ethanol = 14.13:1

    Right? So I should tune my stuff to 14.3:1 (with the appropriate modification for load) instead of 14.7, right?


    Anyone's input will be considered, even newbies'.
     
  2. t3t4delsol

    t3t4delsol New Member

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    what are you tunning with?
     
  3. awptickes

    awptickes unimpressed by you VIP

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    Hondata s300 and a PLX wideband.
     
  4. stuntstere

    stuntstere Member

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    usually when you start to add ethenol to the mix the engine likes a little more timing.. i tuned on e-85 and it was sluggish until i added roughly 8- 10 degrees to wot. of course backing it off a couple of degrees at peak fuel consumption cause it usually indicates peak torque without dyno tuning.... hope this helps a little
     
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