Global Performance Parts

Whiteline/Whiteline Front Roll-Center Adjustment Kit

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Product Documentation

Product Information:

Part Number: KCA395
Manufacturer: Whiteline
Weight: 2 lbs.

Pricing:

Base Price: $227.83
In Stock: This product is in stock
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Product Description:

The Whiteline KCA395 for EVO VII, VIII, IX and X is designed to raise front roll-center geometry by using new specially engineered ball-joints and tie rod ends, while maintaining original steering bump-steer. The original EVO front roll geometry actually encourages roll the lower it goes. With KCA395 you change the front suspension geometry by raising the roll-center and it results in substantial increase to roll resistance and significant reduction of suspension compression of outside front wheel during cornering through improved weight distribution. During cornering, this leads to significantly reduced understeer through reduced front wheel compression, as well as improved steering feel and precision and vehicle stability. This ultimately improves front grip and steering feel.

The following comments were made recently (Feb. 2010) by MotoIQ.com: 

Whiteline’s roll center adjustment kit was also installed in the front suspension. This unique and innovative product is a boon to making your EVO handle well. We are used to having to hand fabricate this sort of part on our racecars but Whiteline has simplified it to make it a bolt on product for the EVO. The roll center adjustment kit uses a ball joint with a longer shank. This effectively moves the lower control arm outer pivot downward and raises the roll center. In a lowered car, the roll center drops and the roll couple which is the lever arm for centrifugal force to roll the car over when cornering gets longer. Thus a lowered car sometimes exhibits more body roll than a car at stock ride height all other things being equal. The Whiteline kit is designed to move the roll center to close to the stock location on a lowered car. This reduces body roll and makes the car more responsive to steering input.

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