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Front end stange behaviour

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Old 05-19-2009, 02:08 PM
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I've just noticed this today and i was abit surprised. While stationary, if i turn the steering wheel from lock to lock , the nose of the car goes up and down depending the position of the wheels. We are talking about a good inch of movement that i can notice on the bonnet !

Does anybody have a clue why this is happening ie anything to do with active suspension ?
Old 05-19-2009, 02:12 PM
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Originally Posted by spiros' post='883478' date='May 19 2009, 06:08 PM
I've just noticed this today and i was abit surprised. While stationary, if i turn the steering wheel from lock to lock , the nose of the car goes up and down depending the position of the wheels. We are talking about a good inch of movement that i can notice on the bonnet !

Does anybody have a clue why this is happening ie anything to do with active suspension ?
Probably just for better handling and stuff.

1979 posts and such an educated answer
Old 05-19-2009, 02:19 PM
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Originally Posted by Krozi' post='883482' date='May 19 2009, 11:12 PM
Probably just for better handling and stuff.

1979 posts and such an educated answer

yes, i was just admiring the depth of knowledge and the use of niche technical terms used on the reply
Old 05-19-2009, 02:33 PM
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Originally Posted by spiros' post='883493' date='May 19 2009, 06:19 PM
yes, i was just admiring the depth of knowledge and the use of niche technical terms used on the reply


I am sure someone else will chime in to give you a real answer
Old 05-19-2009, 04:22 PM
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This is to get better handling and responsiveness. As far as I know only Mercedes and BMW has this feature, and basically the front wheels do not turn only but also lean like a motorcycle towards to the direction you are turning the wheels.
Old 05-19-2009, 04:32 PM
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Originally Posted by leventor' post='883668' date='May 19 2009, 08:22 PM
This is to get better handling and responsiveness. As far as I know only Mercedes and BMW has this feature, and basically the front wheels do not turn only but also lean like a motorcycle towards to the direction you are turning the wheels.
See? Exactly what I said
Old 05-19-2009, 04:35 PM
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Originally Posted by spiros' post='883478' date='May 19 2009, 05:08 PM
I've just noticed this today and i was abit surprised. While stationary, if i turn the steering wheel from lock to lock , the nose of the car goes up and down depending the position of the wheels. We are talking about a good inch of movement that i can notice on the bonnet !

Does anybody have a clue why this is happening ie anything to do with active suspension ?
It's called caster. It produces a jacking effect which changes load on each contact patch. It also winds on more camber the more you turn the wheel, thus standing the front of the car up on the shoulder of the tyre.

You can ready about it here: http://en.wikipedia.org/wiki/Caster_angle

Even if your car does have active suspension, it would be dormant becuase the car is stationary.

All cars do this, the more caster, the more it does it.
Old 05-19-2009, 05:07 PM
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Originally Posted by leventor' post='883668' date='May 19 2009, 08:22 PM
This is to get better handling and responsiveness. As far as I know only Mercedes and BMW has this feature, and basically the front wheels do not turn only but also lean like a motorcycle towards to the direction you are turning the wheels.
correct i believe dodge is doing this now in some of there higher end vehicles srt's for example i think
Old 05-20-2009, 06:06 AM
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Originally Posted by Krozi' post='883680' date='May 20 2009, 01:32 AM
See? Exactly what I said

Old 05-20-2009, 09:01 AM
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Originally Posted by spiros' post='883493' date='May 19 2009, 03:19 PM
yes, i was just admiring the depth of knowledge and the use of niche technical terms used on the reply
TFF! It's time for Junior to get back to class!!


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