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Old 03-24-2017, 04:48 PM
  #166  
manimal
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While ride quality is subjective, reducing unsprung mass objectively improves it.
Old 03-24-2017, 06:00 PM
  #167  
Dock
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Originally Posted by manimal
While ride quality is subjective, reducing unsprung mass objectively improves it.
How much reduction in unsprung weight is required before an average driver can subjectively tell the difference in ride quality?

How is ride quality objectively measured?
Old 03-24-2017, 06:18 PM
  #168  
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In my personal experience, shaving a few pounds per corner is noticeable.

Not sure how facetious you are being or not, but it's obviously possible: http://papers.sae.org/760360/

You can argue that certain drivers or passengers might not notice, but there's no argument that less unsprung weight isn't better.
Old 03-24-2017, 06:26 PM
  #169  
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Originally Posted by manimal
In my personal experience, shaving a few pounds per corner is noticeable.

Not sure how facetious you are being or not, but it's obviously possible: http://papers.sae.org/760360/

You can argue that certain drivers or passengers might not notice, but there's no argument that less unsprung weight isn't better.
+100
Old 03-24-2017, 06:48 PM
  #170  
Dock
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Originally Posted by manimal
In my personal experience, shaving a few pounds per corner is noticeable.
Noticeable in terms of ride quality?

Originally Posted by manimal
Not sure how facetious you are being or not, but it's obviously possible: http://papers.sae.org/760360/
So how much unsprung weight reduction do you think it takes before the test equipment can measure the difference in ride quality, and if the test equipment actually shows a difference, does that mean someone in the vehicle will also be able to subjectively feel it?

Do auto magazines use this in their road test reviews/test rankings, or do they use subjective assessments?

Originally Posted by manimal
...but there's no argument that less unsprung weight isn't better.
Better in terms of ride quality? So a 0.5 lb reduction (that represents "less unsprung weight") improves subjective ride quality?
Old 03-24-2017, 06:56 PM
  #171  
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Originally Posted by Dock
Noticeable in terms of ride quality?



So how much unsprung weight reduction do you think it takes before the test equipment can measure the difference in ride quality, and if the test equipment actually shows a difference, does that mean someone in the vehicle will also be able to subjectively feel it?

Do auto magazines use this in their road test reviews/test rankings, or do they use subjective assessments?



Better in terms of ride quality? So a 0.5 lb reduction (that represents "less unsprung weight") improves subjective ride quality?
Why are you trying to make this a subjective discussion? Is it because objectively your opinion is 100% wrong?
Old 03-24-2017, 07:34 PM
  #172  
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Originally Posted by manimal
While ride quality is subjective...
I agree with you...it's subjective.
Old 03-24-2017, 07:59 PM
  #173  
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Focus folks, focus.
Old 03-24-2017, 08:41 PM
  #174  
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Originally Posted by AZPcarfan
Focus folks, focus.
I don't like Ford.
Old 03-24-2017, 09:15 PM
  #175  
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Originally Posted by Berra
I don't like Ford.
I(subjectively) like your humor.
Old 03-26-2017, 06:36 PM
  #176  
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Originally Posted by Dock
Better in terms of ride quality? So a 0.5 lb reduction (that represents "less unsprung weight") improves subjective ride quality?
Afaik the reduction is more lik 8.5 lbs per wheel (PCCB is ~37 lbs in total, which is 50% of the steel weight)...
Old 03-26-2017, 07:04 PM
  #177  
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shneapfla -

I know what the approximate average weight reduction per wheel PCCB's provide.

I'm not really motivated much to get back into this, but the the discussion at the time I posted my "0.5 lb" reply was made regarding how much unsprung weight reduction was needed before an average driver could subjectively notice a difference in ride quality. manimal stated: "...no argument that less unsprung weight isn't better". In my reply to him, my example of a 0.5 lb weight reduction qualifies as "less". The point I'm making is that there is a minimum value above noise level that is required before unsprung weight reduction can be subjectively assessed as an improvement in ride quality.
Old 03-26-2017, 07:48 PM
  #178  
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Old 03-27-2017, 05:52 PM
  #179  
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So ........ about those auction prices?
Old 03-27-2017, 11:08 PM
  #180  
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I believe the consensus was that PCCB's are like Speed Yellow -- they increase the price while also scaring away buyers.


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