car Wheelies uncontrollably

Questions & Answers
1

When I accelate, my car starts to wheely from it's back wheels. I am using a cube and 4 wheel colliders for this. Any Ideas?

3

Lower your centre of gravity

rigidbody.centerOfMass = Vector3 (0, -2, 0);

also try adding relative down force as you go faster

2

You could probably correct this a few different ways:

  • make the cube heavier (increase the mass on its rigidbody),
  • decrease the grip on the wheels (so they spin instead of gripping at a high torque)
  • decrease the power to the wheels
4

There's actually even more things that can cause wheelies, and I found most of them... :)

  • Mass too low
  • Center of mass too high
  • Center of mass too near rear wheels
  • Drag is too high (high-speed flips)
  • No downforce (high-speed flips) some vehicles should have downforce at speed
  • Friction too low (low speed flips) tires should spin before the car flips
  • Too much engine power
  • Suspension too bumpy - it can be enough to lift the front on a small jump and start a flip

I wish I could give some guidelines as to what values to use, but I'm still in the testing stages myself, so I can't really offer much help as to specifics.