Post by Luis on Nov 9, 2005 19:24:36 GMT -5
Technical Analysis X2 Balljoint
When a Mustang is lowered, front roll center changes due to the new position of the suspension pivot points, lower the car too much and the front roll center drops to well below ground level, and worse than that, the roll center moves side to side as the body rolls, resulting in lost grip and erratic handling. The lower roll center causes the body to roll more easily. Countering this tendency usually requires a significant increase in front spring rate to simply control the added roll due to the lowered roll center. This high spring rate not only hurts ride quality, but it also reduces grip on rough surfaces, as the stiffer springs cause the tire to skip over bumps instead of following the contours of the road. The X2 balljoint was designed to eliminate these problems by correcting the front roll center geomretry. The X2 balljoint has a longer shaft, to raise the spindle relative to the balljoint pivot point. Spacers for the springs are included in the X2 kit to maintain the same ride height as a stock balljoint, but with a much improved roll center height. With the roll center restored to the proper height, smaller swaybars and softer springs can be used. The result is a suspension that works for you to accommodate the small and large imperfection that are in any road or track, allowing the tires to stay planted on the ground where they belong.
IMPORTANT DETAILS
Because the balljoints changes the relationship between the lower control arm and the tie-rod, bumpersteer should be checked whenever the X2 balljoint is installed. With stock caster settings, offset rack bushings are often enough to keep the bumpersteer within acceptable range. However, when caster is increased, the rear inclination of the spindle further raises the steering arm where the tie-rod attaches. Therefore, an adjustable tie rod end, commonly called a "bumpersteer kit" is highly recommanded to prevent bumpersteer whenever caster camber plates are used in combination with the X2 balljoint.
Bumpersteer
Definition: Bumpsteer is a change in toe* angle caused by the suspension moving up or down. Bump-steer is built into the geometry of the suspension and steering system, and has nothing to do with turning the steering wheel. The effect of bumpsteer is for the wheel to toe-in or toe-out when the suspension moves up or down. This toe change or “steering” occurs any time the suspension moves, whether it is from body roll, brake-dive, or hitting a bump in the road. Bump steer is undesirable because the suspension is steering the car instead of the driver.
Going to get this soon mybe my Xmas gift still thinking on the one.
Luis
When a Mustang is lowered, front roll center changes due to the new position of the suspension pivot points, lower the car too much and the front roll center drops to well below ground level, and worse than that, the roll center moves side to side as the body rolls, resulting in lost grip and erratic handling. The lower roll center causes the body to roll more easily. Countering this tendency usually requires a significant increase in front spring rate to simply control the added roll due to the lowered roll center. This high spring rate not only hurts ride quality, but it also reduces grip on rough surfaces, as the stiffer springs cause the tire to skip over bumps instead of following the contours of the road. The X2 balljoint was designed to eliminate these problems by correcting the front roll center geomretry. The X2 balljoint has a longer shaft, to raise the spindle relative to the balljoint pivot point. Spacers for the springs are included in the X2 kit to maintain the same ride height as a stock balljoint, but with a much improved roll center height. With the roll center restored to the proper height, smaller swaybars and softer springs can be used. The result is a suspension that works for you to accommodate the small and large imperfection that are in any road or track, allowing the tires to stay planted on the ground where they belong.
IMPORTANT DETAILS
Because the balljoints changes the relationship between the lower control arm and the tie-rod, bumpersteer should be checked whenever the X2 balljoint is installed. With stock caster settings, offset rack bushings are often enough to keep the bumpersteer within acceptable range. However, when caster is increased, the rear inclination of the spindle further raises the steering arm where the tie-rod attaches. Therefore, an adjustable tie rod end, commonly called a "bumpersteer kit" is highly recommanded to prevent bumpersteer whenever caster camber plates are used in combination with the X2 balljoint.
Bumpersteer
Definition: Bumpsteer is a change in toe* angle caused by the suspension moving up or down. Bump-steer is built into the geometry of the suspension and steering system, and has nothing to do with turning the steering wheel. The effect of bumpsteer is for the wheel to toe-in or toe-out when the suspension moves up or down. This toe change or “steering” occurs any time the suspension moves, whether it is from body roll, brake-dive, or hitting a bump in the road. Bump steer is undesirable because the suspension is steering the car instead of the driver.
Going to get this soon mybe my Xmas gift still thinking on the one.
Luis
