430 - Fuel Map for Aftermarket Exhaust Manifold | FerrariChat
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430 Fuel Map for Aftermarket Exhaust Manifold

Discussion in '360/430' started by JPCIII, Oct 18, 2024.

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  1. JPCIII

    JPCIII Karting

    Oct 4, 2024
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    Katy, Texas
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    Jason P Curtiss III
    #1 JPCIII, Oct 18, 2024
    So for those of you that replaced your crappy OEM exhaust manifold with an aftermarket header sans cat, how did you adjust your fuel map to compensate for the freer flowing exhaust?

    Jason
     
  2. GogglesPisano

    GogglesPisano F1 Rookie
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    Sep 13, 2022
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    Joe
    #2 GogglesPisano, Oct 18, 2024
    360Trev tune.
     
    jerbear27 and flash32 like this.
  3. JPCIII

    JPCIII Karting

    Oct 4, 2024
    126
    Katy, Texas
    Full Name:
    Jason P Curtiss III
    #3 JPCIII, Oct 18, 2024
    Thank you; so where do you get a 360Trev tune and will it work with a 430?

    Jason
     
  4. GogglesPisano

    GogglesPisano F1 Rookie
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    #4 GogglesPisano, Oct 18, 2024
    There are tuners Trev works with in each area. You can message @360trev to see whom he might recommend.
     
  5. mike32

    mike32 F1 Veteran

    May 13, 2016
    5,961
    Isle of man- uk
    #5 mike32, Oct 19, 2024
    Why do you need to start adjusting it, I put Capristo manifolds on mine and it is a straight swap.
     
  6. JPCIII

    JPCIII Karting

    Oct 4, 2024
    126
    Katy, Texas
    Full Name:
    Jason P Curtiss III
    #6 JPCIII, Oct 19, 2024
    It's my understanding that the aftermarket headers do not have a pre-cat like the OEM manifolds and, therefore, are less restrictive than the OEM manifolds. The freer flowing aftermarket exhaust systems will cause a lean fuel mixture, which may necessitate adjustments to the fueling in order to compensate.

    Jason
     
  7. mike32

    mike32 F1 Veteran

    May 13, 2016
    5,961
    Isle of man- uk
    #7 mike32, Oct 19, 2024
    You are correct that after market exhaust do not pre cats, the exhaust O2 sensors will adjust to suit. Not heard of anyone adjusting the fuel system.
     
    flash32 likes this.
  8. flash32

    flash32 F1 Veteran

    Aug 22, 2008
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    Dominick
    #8 flash32, Oct 19, 2024
    +1
     

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