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348 Suspension Settings

Discussion in 'Challenge/GT Cars/Track' started by FlyingHaggisRacing, Feb 4, 2015.

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  1. FlyingHaggisRacing

    FlyingHaggisRacing Formula 3

    Jul 2, 2013
    1,377
    #1 FlyingHaggisRacing, Feb 4, 2015
    For 348s.... (bloody hard to do a table / can any help fill in ?)


    ................................................348-Challenge | 348-GTC | 355-Challenge
    Front:
    . Ride Height
    . Toe
    . Camber
    . Caster
    . Spring/s


    Rear:
    . Ride Height
    . Toe
    . Camber
    . Caster
    . Spring/s
     
  2. Ianbts

    Ianbts Karting

    Nov 4, 2011
    94
    Nottingham
    Full Name:
    Ian Sterling
    #2 Ianbts, Feb 5, 2015
    From the 1994 348 Challenge regs.
    Camber front max 1 degree 40
    Camber rear max 3 degrees 15
    Toe front 2.5 - 3.5 mm
    Toe rear 3 - 4 mm
    Castor (incidenza if I've got it right!) 4 degrees 20 - 4 degrees 40
    Springs would have been stock.
    Ride hight was free as long as no part of the vehicle touched the ground with both tyres on the same side deflated.
    Hope that helps, good luck with the car.
     
  3. Ianbts

    Ianbts Karting

    Nov 4, 2011
    94
    Nottingham
    Full Name:
    Ian Sterling
    #3 Ianbts, Feb 5, 2015
    Just to add to the information above. This is the data on my modified 348 Challenge.
    Camber front 2 degrees 50
    Camber rear 2 degrees 10
    Castor 6.75 degrees
    Front toe 2.75 mm
    Rear toe 2.5 mm
    Ride hight from wishbone fulcrum.
    Front 27mm
    Rear 23 mm
    Front springs 1500lbs
    Rear springs 1000lbs
    Koni dampers and heavy duty roll bars.

    This was setup many years ago by a previous owner.
     
  4. FlyingHaggisRacing

    FlyingHaggisRacing Formula 3

    Jul 2, 2013
    1,377
    #4 FlyingHaggisRacing, Feb 5, 2015
    Super, real world data is best.

    Just started a service, so no data yet, other than front springs are 1370+228 lb (helper).
     
  5. SoCal1

    SoCal1 F1 Veteran
    Owner Silver Subscribed

    Jun 14, 2011
    8,630
    SoCal LA/OC/New Mexico
    Full Name:
    Tim Dee
    #5 SoCal1, Feb 5, 2015
    We need a thread for the 355's also

    :)
     
  6. FlyingHaggisRacing

    FlyingHaggisRacing Formula 3

    Jul 2, 2013
    1,377
    #6 FlyingHaggisRacing, Feb 13, 2015
    Last edited by a moderator: Sep 7, 2017
    My contribution.....
    Sorry been too busy with engine service and fuel pump/foam replacement to measure the camber/caster - but did get the spring values.

    348-Challenge/RHD

    Front
    main= 140.60.240
    helper= 60.60.40
    arb= 22.3

    Rear
    main= 180.60.160
    helper= 80.x.x (can not read the writing)
    Spacer=solid / see pic.
    ARB= 16.4

    Something Interesting -
    Look at the second pic of my rear wheel.
    My wheel is most definitely NOT in the same place as on my Spider.
    Image Unavailable, Please Login
    Image Unavailable, Please Login
     
  7. time

    time Formula Junior

    Sep 15, 2011
    511
    Full Name:
    DeeGee
    #7 time, Feb 13, 2015
    Spiders wheels have an extra 15 or 25mm built in. Same wheels were used on the SS.
     
  8. FlyingHaggisRacing

    FlyingHaggisRacing Formula 3

    Jul 2, 2013
    1,377
    #8 FlyingHaggisRacing, Feb 13, 2015
    Last edited by a moderator: Sep 7, 2017

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