Aerodynamic Coefficients? | FerrariChat
Buy

Aerodynamic Coefficients?

Discussion in 'Technical Q&A' started by Seth, May 1, 2009.

This site may earn a commission from merchant affiliate links, including eBay, Amazon, Skimlinks, and others.

  1. Seth

    Seth Formula 3

    Feb 8, 2004
    1,551
    Texas
    #1 Seth, May 1, 2009
    Does anyone have any idea what the "basic" coefficients are for current road going Ferraris? Other than drag I am wondering about Lift, Side force, Pitch, Yaw, also the Front and Rear Lift. Is this even publicly known data? Someone/Some company surely could get a Ferrari (full scale or even a detailed model) and measure these kinds of things?

    Even for any sports car the info would be great, also any scale too, it doesnt have to be full scale. Any idea where I can find this info?

    The only thing info so far for cars is this...

    http://www.roadandtrack.com/article.asp?section_id=20&article_id=3609&print_page=y

    which mentions the Cz for the 599, and

    http://autospeed.com/cms/title_Aero-Testing-Part-5/A_108677/article.html

    which is a pretty interesting and has some data I need but I need more.
     
  2. Napolis

    Napolis Three Time F1 World Champ
    Honorary Owner

    Oct 23, 2002
    32,118
    Full Name:
    Jim Glickenhaus
    #2 Napolis, May 1, 2009
    P 4/5 underwent extensive wind tunnel testing. There is discussion of it in the P 4/5 mega thread and on the PF website in their wind tunnel section. P 4/5's Cx is about .3
     
  3. Seth

    Seth Formula 3

    Feb 8, 2004
    1,551
    Texas
    #3 Seth, May 1, 2009
    Interesting, I did a search and found some info in the thread, also did you post any other figures in the thread? Couldnt find any, yet, kind of a long thread, Ha!

    And the P 4/5 at 0.3?? Thats amazing!

    also

    http://arc.pininfarina.com/english/index_en.html

    is that the right website for PF's wind tunnel I looked around and could only find pictures?
     
  4. TopElement

    TopElement Formula 3

    May 14, 2005
    1,540
    OC & Vegas
    Full Name:
    A Montoya
    #4 TopElement, May 2, 2009
    There's quite a bit of data out there for (downforce producing) 355 to current cars. Drag coefficient and total lift are the most commonly quoted figures, and f/r pressure distribution is about the same as weight distribution to not induce aerodynamic handling changes.

    Here are some numbers I've gathered from several sources. May or may not be accurate:

    F355 About 75 lbs downforce @ 150mph
    360 Modena Cd .34 300lbs downforce 400lbs drag @ 150mph
    430 660lbs downforce @ "top speed"
    P4/5's downforce must be over the Enzo's 1700lbs at 185mph

    It would be great to see data on all the aero cars, especially from accurate sources.
     
  5. Napolis

    Napolis Three Time F1 World Champ
    Honorary Owner

    Oct 23, 2002
    32,118
    Full Name:
    Jim Glickenhaus
    #5 Napolis, May 2, 2009
    Last edited by a moderator: Sep 7, 2017
    http://www.roadandtrack.com/article.asp?section_id=20&article_id=3610&page_number=3

    P 4/5 generates much more downforce than an Enzo as much as the springs can take.
    Image Unavailable, Please Login
     
  6. TopElement

    TopElement Formula 3

    May 14, 2005
    1,540
    OC & Vegas
    Full Name:
    A Montoya
    #6 TopElement, May 2, 2009
    Great pic.
    Did you retain the active aero system, or is it fixed now? Weight distribution change along with the wider front tires?
     
  7. Napolis

    Napolis Three Time F1 World Champ
    Honorary Owner

    Oct 23, 2002
    32,118
    Full Name:
    Jim Glickenhaus
    #7 Napolis, May 2, 2009
    Last edited by a moderator: Sep 7, 2017
    Still active but we have more wing so we needed more robust elements. Front diffuser active as Enzo. We have more tire but were able to balance aero better than it is on the Enzo. More tire helps in two ways. Less TC needed and better turn in.

    At 200 mph down force and banking took out all of the space between wheel and tire and cut a new groove into the tire.
    Image Unavailable, Please Login
     

Share This Page