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348 Aftermarket Wheel widths/offsets

Discussion in '348/355' started by ILLA NOIZ, Nov 25, 2019.

  1. ILLA NOIZ

    ILLA NOIZ Karting

    Mar 28, 2015
    50
    Concord, North Carolina
    Full Name:
    Drew
    I'm having a set of custom wheels built for my 91 348ts and want some feedback/input from those that have changed their wheels.
    Curious what width and offsets everyone is running. Pics to show how they sit would be helpful as well.
    The more I search the more conflicting info I seem to find. Also came across some weird stock offsets.

    Thanks in advance
     
  2. Ferrarium

    Ferrarium Formula 3
    Silver Subscribed

    Jul 28, 2018
    1,489
    Central NJ
    Full Name:
    Eric
  3. Davsk1

    Davsk1 Karting
    Silver Subscribed

    May 10, 2016
    152
    Lincolnshire UK
    Full Name:
    Dave
    Here's the info I collected when i was doing this:

    Std 348 5x108 67.1 bore
    Front 7.5j17 et+49
    Rear 9j17 et+68

    Std F355 5x108 67.1 bore
    Front 7.5j18 et+32
    Rear 10j18 et+77.9

    And the specs I fitted..

    BBS LM 5x108 67.1 bore
    Front 8j18 et+35
    Rear 10.5j18 et+65

    Michelin Pilot Super Sport - 225/40
    R18 (92Y)
    Michelin Pilot Super Sport - 295/35
    R18 (103Y)
     
  4. Davsk1

    Davsk1 Karting
    Silver Subscribed

    May 10, 2016
    152
    Lincolnshire UK
    Full Name:
    Dave
  5. Davsk1

    Davsk1 Karting
    Silver Subscribed

    May 10, 2016
    152
    Lincolnshire UK
    Full Name:
    Dave
    Use willtheyfit.com to check clearances it's pretty good.
     
  6. ronr

    ronr Formula Junior

    Oct 30, 2002
    802
    DFW, TX
    Full Name:
    Ron
    I have a 91 348ts with standard OEM wheels. I added the Hill Engineering wheel spacers to the rear wheels to improve high-speed stability. I think the rear spacer is 1-inch thick. You could check the Hill Engineering website to confirm and to see what they use for the front wheel spacers. My understanding is that on the later model 348s, the wheel offsets were changed to be further outboard, so you might see different wheel specs depending on the year model.
     
  7. Ferrarium

    Ferrarium Formula 3
    Silver Subscribed

    Jul 28, 2018
    1,489
    Central NJ
    Full Name:
    Eric
    11mm front 25mm rear. The 11mm fronts will catch the fender of you don't roll them.
     
  8. boxcarracer

    boxcarracer Formula Junior

    Jul 29, 2005
    325
    Montreal
    Full Name:
    Luigi

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