Exhaust Valves on a 2006 F430 | FerrariChat
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Exhaust Valves on a 2006 F430

Discussion in 'Technical Q&A' started by Thomas Ruland, Dec 13, 2018.

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  1. Thomas Ruland

    Thomas Ruland Karting

    May 12, 2018
    52
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    Thomas Ruland
    #1 Thomas Ruland, Dec 13, 2018
    I just removed the Novitec Exhaust system on my 2006 F430 due to the noise level. I installed a factory system with the cut out vacuum valves. I have a few questions about the system that I am sure someone will know the answers to. Does the switch on the steering wheel (race to sport) operate the valves manually? Do they open at a certain RPM? And yes it is much quieter. Thanks for any help. Tom
     
  2. tazandjan

    tazandjan Three Time F1 World Champ
    Lifetime Rossa Owner

    Jul 19, 2008
    39,157
    Clarksville, Tennessee
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    Terry H Phillips
    #2 tazandjan, Dec 13, 2018
    No, the switch does not open and close the valves, but it can have an affect on how the system opens and closes the valves. Here are charts that show you when the valves open on the F430. The Motronic 7.1.1 system looks at rpm and throttle position/engine load, as well as Manettino setting, to tell the bypass solenoid when to shut off the vacuum flow to the pneumatic valves and open them. F430 bypass valves are fail open (spring loaded open), while some older Ferraris have fail closed valves (spring loaded closed).


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  3. Thomas Ruland

    Thomas Ruland Karting

    May 12, 2018
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    Thomas Ruland
    #3 Thomas Ruland, Dec 14, 2018
    Thank you for your response, so it is safe to say that if all systems are working correctly the valves should be open at 3000 RPM and above? The engine load percentage is confusing me a little, how would a monitor the engine load? Regards, Tom
     
  4. Bob in Texas

    Bob in Texas F1 Rookie

    Apr 23, 2012
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    Bob
    #4 Bob in Texas, Dec 14, 2018
    Since you are back to OEM, you might want to consider this remote controller built by one of our F-chatters if you want to be able to control the loudness when you want

    http://forzacomponenti.com

    (no affiliation)
     
  5. Josh P

    Josh P Karting

    Apr 10, 2012
    68
    London, Ontario, Canada
    #5 Josh P, Dec 25, 2018
    I have the capristo valve control system with a remote if you are interested in controlling when the valves are open outside of the normal conditions. I installed it for one season before buying a capristo exhaust with no valves.
     
  6. tazandjan

    tazandjan Three Time F1 World Champ
    Lifetime Rossa Owner

    Jul 19, 2008
    39,157
    Clarksville, Tennessee
    Full Name:
    Terry H Phillips
    #6 tazandjan, Dec 26, 2018
    Thomas- No, that is not what the chart shows unless you are talking about wide open throttle. If you had said 6000 rpm, that would be correct. Engine load is mostly based on throttle setting and rpm, easy things to measure with an electronic throttle and tach.
     

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