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Which parts are unsprung weight?

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Old 09-22-2009, 06:50 PM
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Default Which parts are unsprung weight?

I know a few:

Wheels / tires
rotors / pads / calipers
shocks / springs
sway bars
axle
PHR
knuckles
Front a-arms / LCA?

I'd like to reduce my unsprung weight where feasable, and would like to know the parts I should to look at.

Thanks for the info

Last edited by taws6; 09-23-2009 at 05:38 AM. Reason: updated
Old 09-22-2009, 07:06 PM
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sfc's and k member arent unsprung, and upper a arms arent i dont think. -tony-
Old 09-22-2009, 09:51 PM
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I believe that anything that moves in relation to the spring is sprung.
If it doesn't move when the spring compresses/expands I think it unsprung. I think.

I believe your unsprung is:
Wheels/tires
Brakes
Knuckles
Shocks
Rear end

I have looked with no success and haven't found a lighter knuckle up front.
I think a billet aluminum steering knuckle would look bitchin polished but I haven't found anyone that makes them and a one off piece might not be to cheap.
Old 09-22-2009, 10:32 PM
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Sprung is anything that is carried by the weight of the springs, e.g. upper control arms are unsprung.
Old 09-22-2009, 10:39 PM
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don't forget the panhard bar



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