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car Wheelies uncontrollably
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?
Answer by spinaljack · Apr 21, 2010 at 03:44 PM
Lower your centre of gravity
rigidbody.centerOfMass = Vector3 (0, -2, 0);
also try adding relative down force as you go faster
You'll have to experiment with this depending on the size of your model, 1 unit is about 1 meter.
Answer by duck · Apr 21, 2010 at 03:44 PM
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
Answer by Maclypse · Jul 04, 2010 at 11:17 AM
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.
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