[lee]

<img src="/forum/images/smilies/968/unsure.gif" class="smilie" alt="" /> What is corner balancing? Does my daily driver need to have this done? How do you adjust the balance? If I need it, how will I know and what will it cost?



Lee

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[BruceWard]

<img src="/forum/images/smilies/968/unsure.gif" class="smilie" alt="" />  What is corner balancing?

Adjusting the position of the weight of the car so that the amount of weight on each wheel is balanced.

Does my daily driver need to have this done?

No. This is typically done for track or autocross cars. As soon as you add a passenger or a different passenger or some cargo the balance is changed.

How do you adjust the balance?

Corner balancing should occur with the weight of the driver in the passenger seat and half a tank of fuel.



Some methods are;



1. Moving things around in the car, for example if the front right was heavy you might move the battery to the left rear.



2. Suspension adjustments, mainly cars with coilovers, but sometimes possible otherwise you could adjust the suspension of the car until it is balanced.



3. Adding or removing weight from the car. You could add a weight to a light corner. This is more likely to be done where the car is below the minimum weight for a specific competitive class. Or going to the extreme you might drill holes or otherwise remove weight from some part of the vehicle to reduce weight on a corner.

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[earossi]

Cornor balancing can be done with any car that has a mechanism to adjust ride heighth. So, you can also do it relatively easy on cars with torsion bar suspensions, like the 911.



I'll second what Bruce has mentioned, in that you probably should not consider cornor balancing on a street car. Since the process essentially ends up putting equal weight (down force) on each wheel, you'll find that the car does not sit flat if the weight is moved around......such as when the driver exits the car!



I would doubt, also, that you would gain any benefit from cornor balancing running around at slow speeds. The process mainly results in a car that handles evenly in high speed situations, such as during race conditions.

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[flash]

i corner balance i can at nominal condition (driver included) - this includes my street cars - certainly i'm more aggressive about my performance cars, but i shoot for balance on everything, including my tow vehicle - if nothing else, this helps with providing more even braking



i would not go to the expense of seeking somebody and paying them on a street car, but many tire shops have a one leg balancer, and can at least tell you where you are so you can move stuff around to get closer to balanced

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[earossi]

The cost for cornor balancing is usually about 2 to 4 hours of shop time at whatever hourly rate your shop charges. Shop charges here (in Chicago) are in the $100 to $120 hour range, which would put the range at $200 to about $500 depending on how long it takes the tech to balance out all four cornors.

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