f355 springs | FerrariChat

f355 springs

Discussion in '348/355' started by cactussed, Dec 14, 2011.

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

  1. cactussed

    cactussed Formula Junior

    Mar 12, 2008
    299
    Guys

    Does anyone know the length, internal diameter and more importantly, the springs and load ratings of the OEM 355 springs (NOT the challenge ones).

    Can't seem to find the info anywhere....
     
  2. bobzdar

    bobzdar F1 Veteran

    Sep 22, 2008
    6,919
    Richmond
    Full Name:
    Pete
    I have a set sitting in my garage, if nobody else has the answer I can measure them - you should be able to figure out the spring rate based on the number of coils and coil diameter.
     
  3. cactussed

    cactussed Formula Junior

    Mar 12, 2008
    299
    thanks mate.
    There is a post in here with that info supposedly in a pdf, but I can't seem to open it...
     
  4. Mitch Alsup

    Mitch Alsup F1 Veteran

    Nov 4, 2003
    9,744
    Right from the WSM:

    Front:
    outer diameter: 101.5mm
    Spring Diameter: 11.5mm
    Free length: 318mm
    Static length: 189.4mm
    Static load: 4071 N +/- 122 N
    Dynamic length: 133.9mm
    Dynamic load: 5833 N +/- 175 N
    Spring rate: 0.3087 mm/N

    Yellow: 3948-4030
    No color:4030-4113
    Red: 4113-4193

    Rear:
    outer diameter: 104.6mm
    Spring Diameter: 12.0mm
    Free length: 215mm
    Static length: 153mm
    Static load: 4383 N +/- 131 N
    Dynamic length: 96.5mm
    Dynamic load: 6898 N +/- 207 N
    Spring rate: 0.2202 mm/N

    Yellow: 4251-4339
    no color: 4339-4427
    Red: 4427-4561
     
  5. UConn Husky

    UConn Husky F1 Rookie

    Nov 11, 2006
    4,425
    CT
    Full Name:
    Jay
    Just figured I'd mention here I do have a set of 355 challenge springs if anyone is looking to upgrade...
     
  6. cactussed

    cactussed Formula Junior

    Mar 12, 2008
    299
    Excellent, thaks for that info chaps...
     
  7. angelis

    angelis F1 Veteran
    Owner

    Jun 18, 2004
    6,400
    London, England
    Full Name:
    Sy
    Come round and borrow my set of springs
     
  8. jakermc

    jakermc Formula 3
    Owner

    Jan 17, 2004
    1,804
    Palm Beach, FL
    Full Name:
    Rob
    Front, rear, or both? The 1800/700 lb combo or the 2200/900 lb combo? Price?
     
  9. vlamgat

    vlamgat Formula Junior

    Jan 9, 2004
    776
    Not sure he can tell - he needs to measure them so that you can compare as no specs were ever published. Now if the P/N is printed on them somewhere then we can tell from the Challenge manual which set they are
     
  10. jakermc

    jakermc Formula 3
    Owner

    Jan 17, 2004
    1,804
    Palm Beach, FL
    Full Name:
    Rob
    Understood. The part numbers are not printed on the springs but they had either stickers on the spring or on the box. So if he has the original packaging we can tell.
     

Share This Page