Unsolved Unstable Wheel Speed

I just crashed the car and realised that despite all of the diffs being set to open it can still drive with only 1 wheel in contact with the road and the other spinning freely.

Code:

"frontdiff":{
        "information":{
            "name":"Front wheel drive",
            "authors":"Alwyn Owen(aljowen)",
        },
        "slotType":"rdiff",

        "nodes": [
            {"group":""},
            {"nodeWeight":22},
    
            ["fdiff",0,-1.302,0.42],
            ["fTArm",0,-1.5,0.42],
        ],

        "beams":[
            ["id1:", "id2:"],
    
            ["fdiff","e1"]
            ["fdiff","e2"]
            ["fdiff","e3"]
            ["fdiff","e4"]
            ["fdiff","e5"]
            ["fdiff","e6"]
            ["fdiff","e7"]
            ["fdiff","e8"]
    
            ["fTArm","e1"]
            ["fTArm","e2"]
            ["fTArm","e3"]
            ["fTArm","e4"]
            ["fTArm","e5"]
            ["fTArm","e6"]
            ["fTArm","e7"]
            ["fTArm","e8"]
        ],

        "differentials": [
            ["wheelName1",  "wheelName2", "type", "state", "closedTorque", "engineTorqueCoef"],
            ["FL","FR", "open", "open", 0, 1]
            ["RL","RR", "open", "open", 0, 0]
        ],
    }

Is it necessary to set wheels as proposed in the wheels section if using a diff?

Code:

{"selfCollision":false}
            {"collision":true}
     
            {"propulsed":1}
            {"brakeTorque":1800},
            {"parkingTorque":0},
     
     
            {"group":"WheelFR"},
            {"axleBeams":["fr1","fdiff",]}
            ["FR", "WheelFR", "tire_FR", "fr2", "fr1", 9999,  "fr6", 1, {"speedo" : true,"torqueCoupling:":"fdiff","torqueArm:":"fTArm","steerAxisUp:":"nr15","steerAxisDown:":"fr5"}],
            {"group":""}
     
            {"group":"WheelFL"},
            {"axleBeams":["fl1","fdiff",]}
            ["FL", "WheelFL", "tire_FL", "fl2", "fl1", 9999,  "fl6", -1, {"torqueCoupling:":"fdiff","torqueArm:":"fTArm","steerAxisUp:":"nl14","steerAxisDown:":"fl5"}],
            {"group":""}
     
            {"propulsed":1}
            {"brakeTorque":1000},
            {"parkingTorque":3000},
     
            {"group":"WheelRR"},
            {"axleBeams":["rr1","rr3",]}
            ["RR", "WheelRR", "tire_RR", "rr2", "rr1", 9999,  "rr6", 1],
            {"group":""}
     
            {"group":"WheelRL"},
            {"axleBeams":["rl1","rl3",]}
            ["RL", "WheelRL", "tire_RL", "rl2", "rl1", 9999,  "rl6", -1],
            {"group":""}

Also just noticed that if the car is put on its roof the wheels will only spin up to 9mph. No faster. There isn't any stability control fitted. You can also see the wheels shaking when any force is applied to them, including the rear wheels which have no engine forces applied.

 

No, it isn't. It's on my todo list to refine the slot system. However I am not really aiming for it to be as in depth as stock content for this vehicle.