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  1. #1
    Lbaronio's Avatar
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    Race fuel gas question

    From what psi i will need something over 98 pump gas?
    Many thanks


  2. #2
    MSRXP's Avatar
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    Depends on your setup and your fueling as well as ecu you are running.

  3. #3
    rxpredviper's Avatar
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    Stay with 93 if you have that in peru you dont need that with that ecu ,alot of time race fuel maje you go slow..

  4. #4
    rxpredviper's Avatar
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    Afr is very important..

  5. #5
    Lbaronio's Avatar
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    Quote Originally Posted by MSRXP View Post
    Depends on your setup and your fueling as well as ecu you are running.
    I dont understand..., here we use 98 that runs very good with the PWCs, but the question is:
    With a Reflash ECU and a good control of AFR with a RRFPR what are the boost you could have maximun (20psi?), maybe 18?
    many thanks for the input

  6. #6
    MSRXP's Avatar
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    98 octane is different than 98 in the states. We use the (R+M)/2 method. Not sure about Peru. So 98 equals 93 just as it does in Aus

  7. #7
    Moderator Snoman's Avatar
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    Quote Originally Posted by Lbaronio View Post
    From what psi i will need something over 98 pump gas?
    Many thanks

    You should be fine with 98 and your setup,but you can consider mixing it half and half,that way it will put you on the safe side at the higher RPMs even though your ECU has knock control it wouldnt hurt..
    Last edited by Snoman; 10-28-2011 at 09:37 AM.

  8. #8
    Autism Speaks. Its Time To Listen gOt BoOsT's Avatar
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    Quote Originally Posted by Lbaronio View Post
    From what psi i will need something over 98 pump gas?
    Many thanks
    when you start blowing head gaskets from detonation...use better fuel.

  9. #9
    boostedpgt's Avatar
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    needed octane is timing dependent, not boost dependent. if you are knocking you need a tune and/or higher octane.

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