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360 understeer

Discussion in 'Technical Q&A' started by lockyer, May 25, 2005.

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  1. lockyer

    lockyer Formula Junior

    Dec 19, 2004
    251
    Cas Vegas
    Full Name:
    Jon Newall
    #1 lockyer, May 25, 2005
    My friend wants get his 360 to understeer less, is there a way of dialing it out on the suspension adjustment? The degrees of alteration would be usefull, as we have a friendly ferrari tech who will do it on a saturday afternoon as long as we tell him more than the workshop manual tells him!
     
  2. Dave

    Dave F1 Rookie

    Apr 15, 2001
    2,722
    Little Rock
    Full Name:
    David Jones
    #2 Dave, May 25, 2005
    Proper use of the gas pedal on turn-ins or outs can instantly turn the car from an understeer to oversteer situation, without suspension mods.
    IMHO,
    A little advanced driving class would help more than suspension changes at this point.
     
  3. Frank R. Masiarz

    Frank R. Masiarz Karting

    Nov 10, 2003
    126
    Full Name:
    Frank R. Masiarz
    #3 Frank R. Masiarz, May 25, 2005
    Hi........

    Before any major changes in the suspension set-up, make sure that the vehicle possesses the proper factory alignments in the first place.

    Easy method: adjust tire pressures. Higher pressure at the front end will reduce sidewall flex and increase "turn-in" rate = less understeer.

    Do not over-inflate the tires, as over-inflation will reduce the contact patch. Talk to people who race these cars or use them for open-track events; get recommendations from people with experience "at speed".

    Frank..........23005
    www.masiarz.net/bb_resource
     
  4. rexrcr

    rexrcr Formula 3
    Rossa Subscribed

    Nov 27, 2002
    1,578
    Kalamazoo, MI
    Full Name:
    Rob Schermerhorn
    #4 rexrcr, May 25, 2005
    Agreed. Agree with Frank too.

    Best regards,

    Rob Schermerhorn
     
  5. LMPDesigner

    LMPDesigner F1 Rookie
    Silver Subscribed

    Nov 5, 2003
    3,210
    Atlanta Georgia
    #5 LMPDesigner, May 25, 2005
    I TRACK MY 360 AND HAVE RACED IN A 360 CS AND CHALLENGE CAR AND AM NOT AWARE OF ANY BIG UNDERSTEER ISSUES WITH THE CAR. sOUNDS LIKE HE MAY HAVE A PROBLEM IN DRIVING STYLE OR CAR SETUP.

    TO HELP EVALUATE THE PROBLEM--TRY TO DETERMINE WHERE THE UNDERSTEER EXISTS.

    IS IT AT LOW SPEED, MEDIUM SPEED, HIGH SPEED?

    IS IT A CORNER ENTRY ISSUE UNDER BRAKING? DOES IT OCCUR AT THE ENTRY APEX INTO THE INNER APEX WHILE TRAILING OFF THE BRAKE? OR IS MORE A CORNER INNER APEX TO EXIT APEX POWER ON UNDERSTEER? I DOUBT IT IS A CORNER EXIT TO STRAIGHT LINE POWER DOWN UNDERSTEER.

    IF YOU CAN NAIL IT DOWN A BIT MORE THEN A BETTER SOLUTION CAN BE OFFERED.
     

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