X-Pipe Exhaust question | FerrariChat
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X-Pipe Exhaust question

Discussion in 'Technical Q&A' started by Pete Schweaty, Jan 19, 2024.

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  1. Pete Schweaty

    Pete Schweaty Formula Junior

    May 21, 2014
    298
    #1 Pete Schweaty, Jan 19, 2024
    I was looking at how the x-pipe exhaust on my recently acquired f430 is routed, and it looks like even though there are valves in place, and plugged in, it would make no difference if they are open or closed. See the link for the product. For example, if the valves are open, then the exhaust is routed both through the direct route as well as through the x-pipe. If the valve is closed then it is routed 100% through the x-pipe and out the tips. But even if the valves are closed, volume and tone should be similar to open with this setup, correct?

    https://www.fabspeed.com/ferrari-f430-supersport-x-pipe-exhaust-system/
     
  2. Auraraptor

    Auraraptor F1 World Champ
    Lifetime Rossa Owner

    Sep 25, 2002
    14,112
    MO
    Full Name:
    Omar
    #2 Auraraptor, Jan 19, 2024
    Not necessarily, the point at which the pulses merge will effect the tone, i.e. earlier vs later mixing can change the sound pending on where along the relative pulses they merge. Now I can't predict the magnitude of the effect as I don't have nearly enough info to do the math nor have a 430 to tell you.

    Easiest to ask a 430 owner in their subforum who has it installed.
     
  3. Steve Magnusson

    Steve Magnusson Two Time F1 World Champ
    Lifetime Rossa

    Jan 11, 2001
    26,932
    30°30'40" N 97°35'41" W (Texas)
    Full Name:
    Steve Magnusson
    #3 Steve Magnusson, Jan 19, 2024
    Can't make a thing out of those photographs, but if there is a shorter path available when the valve is open (in parallel with the normal path) it will change the tone. You'd think that they'd have some diagrams showing/explaining the flow paths for the two states (and why it is so wonderful ;)) -- but I couldn't find it (if it is there).
     
  4. tazandjan

    tazandjan Three Time F1 World Champ
    Lifetime Rossa Owner

    Jul 19, 2008
    39,318
    Clarksville, Tennessee
    Full Name:
    Terry H Phillips
    #4 tazandjan, Jan 19, 2024
    In general, Ferraris are set up to run as two 4 cylinders on the same crank or two 6 cylinders on the same crank (not Dino or 296). Practically, keeping each bank separate provides the best extraction, power and torque for our V8 and V12 engines. However, many owners prefer the sound you get from mixing the exhaust pulses with an X-pipe and music trumps a little bit of power or torque for them.

    You pay your money, you take your choice.

    Note our V8s in no way parallel the results you get from a 90 degree crank V8, which is four V-twins on the same crank. Completely different animal for exhausts.
     

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