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The Design of a Racing Shock

Tuning With Shocks Part II
February, 2009
By Bob Bolles
Photography by Bob Bolles
139 0308 Shock 01 Z
Performance gains are possible... 
   
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139 0308 Shock 01 Z
Performance gains are possible by knowing how shocks will affect chassis movement and weight transfer. It is important to know our shock rates and how different rates produce desired effects. Proper shock mainten-ance helps us to be sure that parts are working and our shock rates have not changed.
139 0308 Shock 02 Z
When a shock is run on a dyno,... 
   
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139 0308 Shock 02 Z
When a shock is run on a dyno, it is cycled at different speeds and the resistance is accurately measured by load cells. It is important to go through this process to know the true rating of each shock, and to insure that every part is working properly. All shocks should be inspected, rebuilt and dyno'd at least once a year.
139 0308 Shock 03 Z
A shock that moves in direct... 
   
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139 0308 Shock 03 Z
A shock that moves in direct proportion to the spring moves at the exact same speed as the spring. This is especially true with the coilover design. On some designs, the shocks and springs are mounted at different distances from the ball joint and move at different speeds in relation to the wheel speeds.

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