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corner balance vs ride height/rake

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Old 06-21-2010, 11:38 AM
  #31  
Cory M
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Originally Posted by Larry Herman
I have a similar setup, and I use a laser leveler to make sure that all 4 pads are at the exact same height and plane. I can also leave the laser in place and use that to measure suspension points to get pretty exact ride heights.
but do your ride heights change when corner balancing?


We built some stands for the scales that are a few feet off the ground and we do the balance with the car on a suspension lift. Makes it a lot easier to adjust everything.

If anyone needs a set of the Longacre aluminum ramps to go with the adjustable pads pictured above I have some I never use and would like to sell. I'll take $300 for them, half the price of new ones:

http://www.longacreracing.com/catalo...?id=61&catid=2
Old 06-21-2010, 11:44 AM
  #32  
J richard
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One of the biggest misconceptions about cornerweights is that the weights are completely determined by height, If you turn it around and think of corner weights as pressures it makes it easier to get your head around... And it's the only way to get it really right, nice writeup mike.
Old 06-21-2010, 12:52 PM
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joseph mitro
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Originally Posted by Cory M
but do your ride heights change when corner balancing?


We built some stands for the scales that are a few feet off the ground and we do the balance with the car on a suspension lift. Makes it a lot easier to adjust everything.

If anyone needs a set of the Longacre aluminum ramps to go with the adjustable pads pictured above I have some I never use and would like to sell. I'll take $300 for them, half the price of new ones:

http://www.longacreracing.com/catalo...?id=61&catid=2
I'll take them.
email me at jmitro2000@yahoo.com.
thanks
Old 06-21-2010, 05:43 PM
  #34  
Larry Herman
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Originally Posted by Cory M
but do your ride heights change when corner balancing?
It depends on how stiff the springs are. With cup car stiff springs, it only takes a couple of mm to make quite a change.
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Old 06-21-2010, 07:21 PM
  #35  
mark kibort
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The springs are a factor, but the most dominant is the motion ratio, right?

Just thinking out loud. If you are already at equalibrium, does it really matter all that much what the spring ratings are, unless you start twisting the chassis.

Originally Posted by Larry Herman
It depends on how stiff the springs are. With cup car stiff springs, it only takes a couple of mm to make quite a change.
Old 06-21-2010, 07:22 PM
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mark kibort
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+1
Originally Posted by J richard
One of the biggest misconceptions about cornerweights is that the weights are completely determined by height, If you turn it around and think of corner weights as pressures it makes it easier to get your head around... And it's the only way to get it really right, nice writeup mike.
Old 06-21-2010, 11:35 PM
  #37  
Larry Herman
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Originally Posted by mark kibort
The springs are a factor, but the most dominant is the motion ratio, right?

Just thinking out loud. If you are already at equalibrium, does it really matter all that much what the spring ratings are, unless you start twisting the chassis.
If you are trying to figure it exactly, then yes, motion ratio.

At a rest, it still makes just as much difference. If you have a 1500 lb spring, then you will only need to move it 1/3 as far to affect the same weight change as if you had a 500 lb spring. Or to use J Richard's thought process, it will create 3 times the pressure for the same amount of movement.



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