Don't hold me to this as I'm not an expert in the aircraft.cfg but maybe this will help you.

This peice of code is from the default FS9 Beech Baron.

[contact_points]
//0  Class
       //1  Longitudinal Position        (feet)
       //2  Lateral Position             (feet)
       //3  Vertical Position            (feet)
       //4  Impact Damage Threshold      (Feet Per Minute)
       //5  Brake Map                   (0=None, 1=Left, 2=Right)
       //6  Wheel Radius                (feet)
       //7  Steer Angle                         (degrees)
       //8  Static Compression           (feet)  (0 if rigid)
       //9  Max/Static Compression Ratio
       //10 Damping Ratio               (0=Undamped,1=CriticallyDamped)
       //11 Extension Time              (seconds)
       //12 Retraction Time             (seconds)
       //13 Sound Type
       //14 Airspeed limit for retraction (KIAS)
       //15 Airspeed that gear gets damage at (KIAS)
//GEAR
point.0 = 1,  0.82,  0.00, -3.77, 1600, 0, 0.633,

40

, 0.42, 4.0, 0.90, 3.0, 3.0, 0, 152, 180
point.1 = 1, -8.04, -4.79, -3.93, 1600, 1, 0.886,  0, 0.50, 2.5, 0.85, 4.1, 4.3, 2, 152, 200
point.2 = 1, -8.04,  4.79, -3.93, 1600, 2, 0.886,  0, 0.50, 2.5, 0.85, 4.3, 4.1, 3, 152, 200

The red number 40 is the steer angel for the nose gear. I'm guessing that it will rotate 40 degrees. The steer angle should be the eighth number after the = sign in your contact points. Try increasing the number a little bit at a time and see what you get.