UMI Performance
Jan 11th, 12, 11:08 AM
Subject: GM A and G-Body stock upper a-arm VS. UMI upper a-arm with taller ball joints
Graph below shows the stock upper a-arm from the 64-72 GM A-body and the 78-88 GM G-Body compared to UMI's upper a-arms with 1/2" taller ball joints.
The UMI upper a-arm with 1/2" taller ball joint...
...more than doubles the camber gain at 2.5" bump travel
...starts the camber gain during turn-in more quickly than stock
...has a linear camber tendency which improves camber performance on lightly loaded inside tire during cornering
...gives real handling improvement with no adjustment required to other parts of suspension (i.e. bumpsteer)
...gives the effect of a 1/2" taller spindle in an easy bolt-on part
...is a good building block for your Auto-x, street, or Pro-Tour suspension system
http://www.umiperformance.com/catalog/images/front_rotate/tallballjoints.jpg
Graph below shows the stock upper a-arm from the 64-72 GM A-body and the 78-88 GM G-Body compared to UMI's upper a-arms with 1/2" taller ball joints.
The UMI upper a-arm with 1/2" taller ball joint...
...more than doubles the camber gain at 2.5" bump travel
...starts the camber gain during turn-in more quickly than stock
...has a linear camber tendency which improves camber performance on lightly loaded inside tire during cornering
...gives real handling improvement with no adjustment required to other parts of suspension (i.e. bumpsteer)
...gives the effect of a 1/2" taller spindle in an easy bolt-on part
...is a good building block for your Auto-x, street, or Pro-Tour suspension system
http://www.umiperformance.com/catalog/images/front_rotate/tallballjoints.jpg