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newb Q: What is Corner Balancing?

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Old Aug 28, 2008 | 04:42 PM
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newb Q: What is Corner Balancing?

I'm gonna take my porsche to get it alligned next month. Is Corner Balancing included in the allignment? What is it?
 
Old Aug 28, 2008 | 06:43 PM
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i would like to know myself
 
Old Aug 28, 2008 | 07:02 PM
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They adjust the suspension so that it is balanced on all 4 corners with the driver in it, I know that sounds pretty vague. Each wheel is put on a scale, the individual doing the balancing will ask for the driver weight and go about adjusting the coilovers so that the car is balanced. I had my car corner balanced at aligned at GMG. If you look at the driver side of my car when I am outside the car it is slightly higher than the passenger side, thus when I get in the car it evens out or is balanced. Hope this helps!
 
Old Aug 28, 2008 | 07:02 PM
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Corner balancing is a process by which a car equipped with adjustable suspension (i.e. coilovers) is placed on scales, four of them, one for each tire, and then the suspension is tuned so that the weight distribution is as close to equal as possible from side to side and diagonally. What this does is balance the car's handling, allowing it to turn equally well in either direction.


see: http://www.nsxprime.com/FAQ/Performa...nerbalance.htm

or Google "corner balancing" and you'll get a whole bunch of hits and explanations.
 
Old Aug 28, 2008 | 08:05 PM
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I just had corner balance and alignment done today at Roger kraus Racing in the Bay Area. The car is 49.99% and 50.01% between left and right side, with my weight inserted into the calculation. I thought driving was fun before, but now it is FUN. I wish I had it done sooner.
 
Old Aug 28, 2008 | 08:41 PM
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From the information I have obtained, I understand it is best to do corner balancing and alignment during the same session. Adjustments on one parameter of corner balance can affect alignment and vice versa. It is best to get the front weights as close to equal as possible and let the rear be off by whaterver needed to get the front close. Cross weighting is important also but there are sites to study and learn about all these interrelations. There's a thread or 2 on this forum dealing with these issues. Don't remember their titles.
 
Old Aug 28, 2008 | 09:42 PM
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So....I'd have to have coilovers....so I guess not yet
 
Old Aug 28, 2008 | 10:50 PM
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so with a passenger the handling would then be out of balance, correct? Say a 160lbs. person is your passenger, is would the handling be compromised a good deal?
 
Old Aug 29, 2008 | 08:29 AM
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Originally Posted by 996TTDave
so with a passenger the handling would then be out of balance, correct? Say a 160lbs. person is your passenger, is would the handling be compromised a good deal?
Yes it is. There is no perfectly solution for this. However, most of us are usually by ourselves when doing spirit drives, in most cases. You can always ask them to fit the adjustment into your life style.
 
Old Aug 29, 2008 | 07:27 PM
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Originally Posted by MY996TT
Yes it is. There is no perfectly solution for this. However, most of us are usually by ourselves when doing spirit drives, in most cases. You can always ask them to fit the adjustment into your life style.
We corner balance a lot of car's at my shop, sometime's people do ask me to set it up with some weight in the pass seat.

lets say the cross weight percent is 50/50 without any weight in the driver seat, when the driver gets in weight does change but if its set up right it will stay 50/50.

Chris Green
 
Old Aug 29, 2008 | 07:46 PM
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Originally Posted by Chris Green
We corner balance a lot of car's at my shop, sometime's people do ask me to set it up with some weight in the pass seat.

lets say the cross weight percent is 50/50 without any weight in the driver seat, when the driver gets in weight does change but if its set up right it will stay 50/50.

Chris Green
I don't really know much about CB. If 50/50 without weight, how can it stay 50/50 with... let say 190 lbs on the driver side(my weight).
 
Old Aug 29, 2008 | 08:04 PM
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Originally Posted by MY996TT
I don't really know much about CB. If 50/50 without weight, how can it stay 50/50 with... let say 190 lbs on the driver side(my weight).
Because its cross weight not back and front percent example my car is 50/50 with no one in it. If I sit in the car (165) it will float around 49.9/50.1 and 50/50.

Chris Green
 
Old Aug 29, 2008 | 08:10 PM
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just keep in mind that the corner balance comes first..then the alignment...
 
Old Aug 29, 2008 | 08:57 PM
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Originally Posted by VSE Chuck
just keep in mind that the corner balance comes first..then the alignment...
Thats correct, here is a good site that show's how it work's

http://robrobinette.com/corner_weight_calc.htm
 
Old Aug 29, 2008 | 09:22 PM
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Originally Posted by Chris Green
Because its cross weight not back and front percent example my car is 50/50 with no one in it. If I sit in the car (165) it will float around 49.9/50.1 and 50/50.

Chris Green
My lack of knowledge is preventing me to understand this. So when the cross weight is 50/50, 165 doesn't make a significant differences. So if a person is 165x2=330 lbs, the difference will be about .2%. Therefore, any mass in the car will not have a significant impact. Is it pretty safe to assume the cross weight differences won't be... let's say 3% when they are very very off? So, why do we use these figures? I hope I'm not confusing you (I think I'm confusing myself).
 


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