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RE: Corner scales, Yes Diagonal Increase

Thanks for the correction; certainly no slight was intended. I'll
foolishly stand by my original statement until I have a chance to dig
into it (I'm leaving shortly for a week, so no digging for awhile...).
It appears that the difference between us revolves around the question
of how much the ride height is changed. As for the stool analogy, I'll
have to think about it, since stools don't have suspensions but cars do.

Cheers

John

>-----Original Message-----
>From:	Pete Read [SMTP:[email protected]]
>Sent:	Friday, September 27, 1996 12:10 PM
>To:	bdigest
>Cc:	John Browne
>Subject:	Re: Corner scales, Yes Diagonal Increase
>
>John Browne writes:
>>Somebody wrote, in response to a question on corner scales, that 
>>raising one corner would increase the weight at that corner and 
>>at the opposite corner. Not true. Raise the right front, and you 
>>lighten it and increase the weight of the left rear. 
>
>John,
>
>That person was me, and my statement is correct.  Slightly raising 
>the ride height at one corner increases the weight at that corner
>and diagonally across the car.  Of course, the corners on the other 
>diagonal lose weight.  For example, raising the right front 
>increases the weight on both the right front and left rear tires.  
>
>While I'll freely admit that I've never done this procedure, I'm
>usually able to read and understand technical articles.  I was 
>pretty sure about accuracy of my original post, but after seeing 
>your comments, I double checked three references on suspensions
>before responding (Puhn, Smith, Milliken).  Perhaps you should 
>also check reference material before discrediting someone else's 
>statements.
>
>I'll agree that raising the right front up enough to change the 
>CG will remove weight from the right front and add it to the
>left rear.  However, corner balancing, weight jacking, or whatever
>you want to call it, isn't meant to change the CG.  
>
>A good way to visualize the result is to put a four legged stool
>on a hard floor.  Put a quarter under the right front leg.  Notice 
>that the stool is now balanced diagonally on the right front and 
>left rear legs.  The other diagonal (left front and right rear) legs 
>are now too short and don't support as much weight.
>
>  Regards,
>  
>  Pete Read
>  '88 M5