430 - Latest update to the Trev tune for manual conversions | FerrariChat
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430 Latest update to the Trev tune for manual conversions

Discussion in '360/430' started by GogglesPisano, Sep 17, 2025 at 3:30 PM.

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  1. GogglesPisano

    GogglesPisano F1 Rookie
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    #1 GogglesPisano, Sep 17, 2025 at 3:30 PM
    I want to preface this by saying this is for 2008+ only cars so don’t get too excited if you have one that’s older. :)

    Being down the street from @sammyf has it’s perks as I was updated last week that Trev, through his lifelong quest to be one with the code, has found not only another 30ftlbs of torque in the car but also something small that kept the 2008+ conversions from more accurately behaving like a factory manual car would. I don’t have enough expertise to elaborate on that and don’t want to say the wrong thing, but suffice to say that there was an improvement with the fuel mapping at low speeds and on deceleration.

    I didn’t have many gripes with the car to begin with so I was surprised to hear that there was going to be any sort of significant improvement. However, after getting the tune done, I am amazed at how different the car feels. It really did smooth everything out and it almost feels like a different car. It’s less violent and shaky when letting on and off the throttle quickly. Rev matching has become slightly easier and I don’t get as much jumping around when at low speeds. It’s hard to describe really but I can tell you that I noticed it immediately from the passenger seat when Sam took my car out for the initial drive with the new tune.

    The extra torque was a bonus although I have to be honest in saying that the car is already pretty fast and it’s only a slight feel on the butt dyno.

    You do lose some of the burble on decel but it’s still there for the most part and the improved drivability is worth the trade off if you like burbling around :D
     
    CoreyNJ, jerbear27 and oc23 like this.
  2. oc23

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    #2 oc23, Sep 17, 2025 at 4:46 PM
    Well this is interesting. I wonder what it is about the 2008 and on. I have a 2008 and it's pretty good as it is now with the manual conversion. However sometimes I do catch a little jerkiness when I let off the throttle in 3rd gear. Is that what you are referring to that is now better?
     
  3. GogglesPisano

    GogglesPisano F1 Rookie
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    #3 GogglesPisano, Sep 17, 2025 at 5:28 PM
    that is one of the things. Also, not sure if you ever got any “bucking” or anything at super low speeds. The previous tune was very much on/off with the pedal at low speeds. This makes it more evened out
     
  4. oc23

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    #4 oc23, Sep 17, 2025 at 5:49 PM
    Thanks. Do you know what about the 2008s and 09s cause this? Quite interesting.
     
  5. GogglesPisano

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    #5 GogglesPisano, Sep 17, 2025 at 7:30 PM
    To the best of my understanding, something in the gauge cluster still sends out some type of signal to the ecu prompting F1 behavior. The new tune makes the ECU ignore the signal and perform the way it should as a manual. Something with the fuel maps specifically that causes more abrupt changes. I could be way off so if @360trev wants to elaborate or explain it better that would be good :)
     
  6. flash32

    flash32 F1 Veteran

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    #6 flash32, Sep 17, 2025 at 8:08 PM
    If I had to guess it would be the pressure sensor on the clutch block on the F1 system sending a signal to the ECU ..once removed it needed to have a different reference or remove a dependency on that
    Just a swag
     
  7. CoreyNJ

    CoreyNJ F1 Rookie
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    #7 CoreyNJ, Sep 18, 2025 at 1:28 AM
    There were a lot of changes in the 2008/2009 models. On F1 cars the transmission is different. In the past Ferrari would have added an M to the model designation. There is a spreadsheet floating around of many of the changes. In parts shopping for pieces to make my car 100% I have discovered the list is even bigger. An example of this is rearmost part of the rear wheel arch liner which has the same part number as the earlier cars but different and is shared with the Scuderia. Ferrari tweaked a lot of little parts for the scud and the 08/09 cars benefitted as they updated a part but not the number most likely to keep costs down by not having a special version for the scud.
     

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