Recognize the model using the piston and connecting rod | FerrariChat

Recognize the model using the piston and connecting rod

Discussion in 'Technical Q&A' started by RuSH3R, Dec 3, 2024.

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  1. RuSH3R

    RuSH3R Rookie

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    Hello,

    Could I ask if anyone can tell from the photo what model of Ferrari it is? There are several markings on the piston such as:

    AQ8363 C 61407231
    VXLR VXGN
    26947
    L.47 6166-01 93.935

    Photos: https://imgur.com/a/ec64Zyk

    But from this information I didn't find out what model it is, I think it is a Ferrari 488, but I don't know 100% and I was curious.

    Thank you
    Have a nice day.
     
  2. wmuno

    wmuno Formula Junior Silver Subscribed

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    Photos don’t open in FC.
     
  3. RuSH3R

    RuSH3R Rookie

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  4. Snapshift

    Snapshift Formula Junior Rossa Subscribed

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    See if you can measure the diameter of the piston and look up engine specs on various Ferrari Engines and maybe you can deduct from there.
    I don't know how you can calculate a stroke length from the length of the connecting rod, to calculate displacement, etc. x8 or 10, but perhaps you can measure the internal diameter of the rod bearing and get another figure that may show up in various engine specifications, If you're willing to do the research.
    In the meantime, though, you have a very nice display ornament and it may just be ornamental and not from any existing Ferrari engine. I'd be proud to have that on my desk. I don't know that I can be of any help, but that's my opinion. What does the citation plaque on bottom left of the trophy state?
     
  5. raemin

    raemin Formula 3

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    What the qr code (just above the skirt) says?
     
  6. RuSH3R

    RuSH3R Rookie

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    The QR code doesn't work, or maybe it's not even a QR code even though it looks like it, I tried asking ChatGPT and other AI things directly and even they couldn't tell me exactly what it was.

    I'm intrigued by the middle, the cutout that's shaped like a bone. A lot of Ferrari models only have that one part as if it's bone shaped, but the other part is more to the inboard line or the tip.

    There are other symbols that I have photographed now: https://imgur.com/a/Jqg5q0K

    Apart from the inner part that resembles the shape of a bone, there is another thing that is not so common and that is the shape of the piston itself (the front part) which is also different from the ones I have seen.

    So I think it probably doesn't have any model and it is a special part as an award for me, like a medal which I like, and overall it looks great, but I was a bit curious and that's why I asked because I searched everywhere and no result.

    In the photo you can see:
    - Code
    - Some symbol or logo that looks like "AW" with the number 26947
    - It says on the piston: L.47 6166-01 93-935
    - Some kind of logo or text that's on the connecting rod, I see something like: pankj

    Image Unavailable, Please Login Image Unavailable, Please Login Image Unavailable, Please Login Image Unavailable, Please Login Image Unavailable, Please Login
     
    Last edited: Dec 8, 2024
  7. dm_n_stuff

    dm_n_stuff Four Time F1 World Champ Lifetime Rossa Owner

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  8. Rifledriver

    Rifledriver Three Time F1 World Champ

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    Pankl has been the supplier of titanium rods to Ferrari since they have been using titanium. Very big company. Mahle has traditionally been the piston supplier since 1983 but that may have changed. I do not see a Mahle logo. The beam of the rod is very narrow and suggests its from a very compact engine deck height wise. Its from a very under square engine but not as undersquare as the F1 12's. I have never seen a Ferrari trophy rod/piston that was not from a real engine. They get lifed out quickly so there are always many looking for a home better than the scrap metal bin.
     
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  9. RuSH3R

    RuSH3R Rookie

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    Thank you very much for the detailed information you wrote, I learned something new thanks to it.
     
  10. LVP488

    LVP488 F1 Veteran

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    From the shape of the top, isn't that hinting at a 5-valve engine ?
    (355, 360, F50...)
     
  11. Rifledriver

    Rifledriver Three Time F1 World Champ

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    None of those. That reliefe is not for a valve. I suspect it is for a direct injected engine and that is to create turbulence below the ijector.
     
  12. d16dcoe45

    d16dcoe45 Rookie

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    It's an F136ED 458 Speciale piston/rod

    You can tell that by the much larger dome than 458 Italia piston (to get that 14:1 comp of Speciale)

    The "5th" valve pocket machined into the piston crown is for direct injection clearance/turbulence--not intake valve clearance.
     
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  13. RuSH3R

    RuSH3R Rookie

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    Thanks a lot for this detailed explanation, I really appreciate the useful info!

    A few weeks ago, I wrote directly to Pankl, and they wrote back to me: The conrod is a standard titanium rod out of our serial production line, and is normally installed in Ferrari V12 engines. The piston is not from us, so I can´t give you any information on that one.

    So now I know the possible Ferrari model.
     
    Last edited: Sep 22, 2025 at 7:59 AM
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