Whats the difference between 348 and 348 challenge gearbox | FerrariChat
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Whats the difference between 348 and 348 challenge gearbox

Discussion in '348/355' started by magspider, Dec 30, 2010.

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  1. magspider

    magspider Karting

    Oct 25, 2008
    96
    Ontario Canada
    Full Name:
    Ralph
    #1 magspider, Dec 30, 2010
    What the difference between 348 gearbox and a 348 challenge gearbox
     
  2. fatbillybob

    fatbillybob Two Time F1 World Champ
    Consultant Owner

    Aug 10, 2002
    29,241
    socal
    #2 fatbillybob, Dec 30, 2010
    nothing. Some did run the lower ratio of the mondial-T box for better acceleration. Some also drilled some holes for an external oil cooler but there was no "challenge" box. There was the challenge ECU which was the last version of the spyder ecus that allowed another 100 rpms before the rev limit kicked in. Mapping of that ecu was either the same of mildly different at wide open throttle.
     
  3. sambomydog

    sambomydog Guest

    May 23, 2009
    1,380
    #3 sambomydog, Dec 30, 2010
    Both are still string operated;)
     
  4. magspider

    magspider Karting

    Oct 25, 2008
    96
    Ontario Canada
    Full Name:
    Ralph
    #4 magspider, Dec 30, 2010
    wow thank for the info. I own a 91 348 TB. I just discovered that the previous owner replaced the my gearbox with a challenge after blowing the original one up.
     
  5. Saint Bastage

    Saint Bastage F1 Rookie

    Jun 1, 2007
    2,548
    Connecticut
    Full Name:
    Lane
    #5 Saint Bastage, Dec 30, 2010
    It was my understanding that the challenge cars used the SS/spider gearbox that had a taller 1st gear. Am I wrong?
     
  6. fatbillybob

    fatbillybob Two Time F1 World Champ
    Consultant Owner

    Aug 10, 2002
    29,241
    socal
    #6 fatbillybob, Dec 30, 2010
    Challenge cars could use any stock gearbox. There are only 2 ratios 25/27 and 25/29. 26/27 was replaced and exhausted.
     

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