Wheelbase Stagger | FerrariChat

Wheelbase Stagger

Discussion in 'Vintage (thru 365 GTC4)' started by Napolis, Dec 31, 2011.

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

  1. Napolis

    Napolis Three Time F1 World Champ
    Honorary Owner

    Oct 23, 2002
    32,118
    Full Name:
    Jim Glickenhaus
    Sal routinely sets up our vintage Ferrari's with 1/4 inch of wheelbase stagger.

    Left wheelbase is longer than right.

    He feels that the cars handle a lot better and the factory used to set up the race cars like that.

    Thoughts??
     
  2. RVL Saratoga

    RVL Saratoga Formula 3

    Aug 27, 2010
    2,421
    Saratoga Springs, NY
    Full Name:
    Robert
    Interesting! Is that meant to offset driver weight?
     
  3. Napolis

    Napolis Three Time F1 World Champ
    Honorary Owner

    Oct 23, 2002
    32,118
    Full Name:
    Jim Glickenhaus
    Can't be that as some are right hand drive. There are more right turns on a race course so it may have something to do with that but on the street it seems to work as well.
     
  4. velocetwo

    velocetwo F1 World Champ

    Dec 11, 2006
    12,536
    Left Coast
    It must have to do with the direction of the race track?
     
  5. Napolis

    Napolis Three Time F1 World Champ
    Honorary Owner

    Oct 23, 2002
    32,118
    Full Name:
    Jim Glickenhaus
    Most are run clockwise so more right turns.
     
  6. BMWairhead

    BMWairhead Formula 3

    Sep 11, 2009
    1,036
    Portland, OR
    Full Name:
    Ted
    Offset torque reaction from the drivetrain?
     
  7. Napolis

    Napolis Three Time F1 World Champ
    Honorary Owner

    Oct 23, 2002
    32,118
    Full Name:
    Jim Glickenhaus
    That could be it.

    I measured P 4/5 and it's Enzo wheelbase is also 1/4 inch less on the right side.

    Pretty interesting.
     
  8. RVL Saratoga

    RVL Saratoga Formula 3

    Aug 27, 2010
    2,421
    Saratoga Springs, NY
    Full Name:
    Robert
    Was there some sort of design flaw inherent in the the steering gear back then?

    I don't doubt Sal is right, but it's really strange.

    Edit: P4/5 is set up the same.?!? If its torque, wouldn't the modern diff in P4/5 eliminate the need?

    Hm.
     
  9. Napolis

    Napolis Three Time F1 World Champ
    Honorary Owner

    Oct 23, 2002
    32,118
    Full Name:
    Jim Glickenhaus
    BMWairhead may have the reason.
     
  10. 8339

    8339 Karting

    Oct 17, 2006
    194
    Maryland
    Full Name:
    Richard
    When you say wheelbase stagger, do you mean your mechanic is setting the caster on the left to have more positive caster than on the right side?
     
  11. Napolis

    Napolis Three Time F1 World Champ
    Honorary Owner

    Oct 23, 2002
    32,118
    Full Name:
    Jim Glickenhaus
    I mean the wheelbase on the right side is 1/4 inch shorter than the wheelbase on the left side of the car.
     
  12. velocetwo

    velocetwo F1 World Champ

    Dec 11, 2006
    12,536
    Left Coast
    That makes sense.
     
  13. readplays

    readplays Formula 3

    Aug 22, 2008
    2,350
    New York City
    Full Name:
    Dave Powers
    It's Italian. The left is more sinister. Literally. Sinistre.
    LOL.
    Happy New Year to the Neapolitan One.
    Thank You James for your generosity in sharing anything and everything about your journey with these wonderful old overpriced sewing machines.
    My Best to you and everyone else along for the ride. We all look forward to seeing what the new year brings for 0854, 0846, 002, and on and on. ;)

    Regards,
    Dave
     
  14. Napolis

    Napolis Three Time F1 World Champ
    Honorary Owner

    Oct 23, 2002
    32,118
    Full Name:
    Jim Glickenhaus
    Also used on some MB's.

    "Interestingly, the wheelbase measured from star centre to star centre (wheel centre) is 2707 mm right side, and 2725 mm left side, could this difference make a difference to the pull? I have had a very quick discussion with an MB tech who said something to the effect that there is an MB fix for the pull to the left that involved altering the wheel base on one side of the car by up to 25 mm, but only if the customer asked for it. If this is correct, I wonder if this has been done, or if it needs to be done to bring the left and right sides closer to an equal measurement."
     
  15. Doctor7474

    Doctor7474 Formula Junior

    Jun 20, 2010
    367
    Hoover Al,former Atl
    Full Name:
    Doctor
    It's to counter torque steer. It's inherent in a lot of front wheel drive cars not so much in rwd cars. Most memorable one were the old jelly bean Taurus/Sables one side was much shorter.
     
  16. Napolis

    Napolis Three Time F1 World Champ
    Honorary Owner

    Oct 23, 2002
    32,118
    Full Name:
    Jim Glickenhaus
  17. kare

    kare F1 Rookie
    Consultant

    Nov 11, 2003
    3,634
    #17 kare, Jan 3, 2012
    Last edited: Jan 4, 2012
    I think you are the only one on the ball here.

    What comes to MB they do it by request only because it can be very dangerous. As a manufacturer you cannot afford that; some of your customers having bad accidents is bad for business, they know it by experience.
     
  18. Napolis

    Napolis Three Time F1 World Champ
    Honorary Owner

    Oct 23, 2002
    32,118
    Full Name:
    Jim Glickenhaus
    Kare you're quite wrong. It's done on a lot of powerful cars to prevent torque steer. With equal wheelbases side to side on hard acceleration cars with a lot of torque hunt.
     
  19. Napolis

    Napolis Three Time F1 World Champ
    Honorary Owner

    Oct 23, 2002
    32,118
    Full Name:
    Jim Glickenhaus
    67 Le Mans race set up sheets confirm this.
     
  20. jjmcd

    jjmcd Formula Junior

    Dec 3, 2004
    490
    That's what I was thinking - it offsets the chassis twist from the engine's torque under load.
     
  21. Napolis

    Napolis Three Time F1 World Champ
    Honorary Owner

    Oct 23, 2002
    32,118
    Full Name:
    Jim Glickenhaus
    Hopefully the Judges at Pebble will deduct points from any 60ies racing Ferrari that isn't set up with it.
     
  22. Doctor7474

    Doctor7474 Formula Junior

    Jun 20, 2010
    367
    Hoover Al,former Atl
    Full Name:
    Doctor
    Aye we do it on drag cars except we do it with the rear suspension as most of the track the front tires are off the ground. The side that the torque is transferred to is made to have a longer wheel base than the other side. Example a clockwise running engine (from the drivers perspective) the passenger side has a longer wheel base as torque is being transferred to the right rear on launch and visa-versa.
     
  23. thecheddar

    thecheddar Formula 3

    Jun 29, 2006
    1,057
    Santa Monica
    Full Name:
    Cheddar, The
    They probably will now!

    I'm envisioning some anxious phone calls to a few restoration specialists tonight. ;)
     
  24. kare

    kare F1 Rookie
    Consultant

    Nov 11, 2003
    3,634
    Two entirely different things are being seriously confused in this thread.
     
  25. JeremyJon

    JeremyJon F1 Veteran

    Jul 28, 2010
    7,569
    Calgary, Canada
    #25 JeremyJon, Jan 5, 2012
    Last edited: Jan 5, 2012
    it makes sense if being to counter a torque reaction (i.e. rear axle wind up)....old mopars (and others) did this with stagger set rear leaf springs, etc. ...this axle movement could happen under braking as well as accelerating
    or, the factory race cars may have been set up this way to prompt a quicker turn-in to the right, same as some track cars stagger tires to aid quicker turn-in
    it's interesting to learn these details about these wonderful cars :)
     

Share This Page