E85 Carb Help

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  • Wild Blue 32
    Member
    • Feb 2008
    • 90

    #1

    E85 Carb Help

    I was thinking about switching to E85. What changes do I need to make to my carb? It's a 5200 holly weber on a 2.3 Ford. The local engine builder that most people use sells a carb set up for E85 but only to people who run his engine. Since I build my own engines I'm on my own. So any info would be greatly appreciated. Thank you.
  • Wild Blue 32
    Member
    • Feb 2008
    • 90

    #2
    Does anybody know a good carb guy that could help?

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    • RACEMAN
      Senior Member
      • May 2007
      • 323

      #3
      It will need to run richer. Your gasoline carb was probably set for an A/F ratio of about 13:1. The E85 carb will need to run probably around 10:1. Pure ethanol would probably be around 9:1.

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      • Wild Blue 32
        Member
        • Feb 2008
        • 90

        #4
        So can I just put in bigger jets or is there other modifications that need to be done to run E 85. Does E 85 give you more power?

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