I wheel aligned my DRB GT40 on weekend and while on the wheel alignment
machine I noted the following bumpsteer changes over the suspension travel
of the vehicle. The wheel aligner I used is a Biessbarth ML4600. I am trained
to use this machine ,but I am no expert when it comes to suspension.
The results I have only relate to my car and may not apply to other DRB's
as they maybe set up differently or I may have also set the car up incorrectly.
After setting caster/camber/ toe to what i thought was a good
initial starting point (sports driving), I removed the springs from the shocks and cycled the suspension through it's full travel taking measurements
every 20mm or so ,front and rear.
When it came to the rear bumpsteer I found that adjusting the caster
did make improvements, but only to a certain point (approx 3.5 degrees) then increasing it anymore reversed improvements made.
machine I noted the following bumpsteer changes over the suspension travel
of the vehicle. The wheel aligner I used is a Biessbarth ML4600. I am trained
to use this machine ,but I am no expert when it comes to suspension.
The results I have only relate to my car and may not apply to other DRB's
as they maybe set up differently or I may have also set the car up incorrectly.
After setting caster/camber/ toe to what i thought was a good
initial starting point (sports driving), I removed the springs from the shocks and cycled the suspension through it's full travel taking measurements
every 20mm or so ,front and rear.
When it came to the rear bumpsteer I found that adjusting the caster
did make improvements, but only to a certain point (approx 3.5 degrees) then increasing it anymore reversed improvements made.