Adjusting Front Roll Center

[NZGTRA17]

Has anyone tried adjusting and track testing the front roll center on thier cars? I am fitting new upper arms and ball joints.

My front end is currently set up with 1 thick, 1 medium and 1 thin spacer washer under the upper ball joint (the Coleman kit comes with 1 thick, 2 medium and 1 thin spacer).

I am interested in what results people have got from adjusting the roll center and what settings they setttled on.

Thanks, Kel.

[Cobra4B]

Our car had the uppers done backwards. In redoing it I followed the GTS assembly manual directions:

"install lower monoballs into control arms if they are not already installed. There should be 1) 1/2" spacer between the monoball and control arm and 1) 1/8, 1) 1/4, and 1)3/8 spacer below the control arm followed by the nyloc."

and

"Make sure there is 1) 1/4" spacer above upper monoball and 1) 1/8", 1) 1/4", 1) 3/8" spacer below upper monoball."

[NZGTRA17]

Originally Posted by Cobra4B

Our car had the uppers done backwards. In redoing it I followed the GTS assembly manual directions:

"install lower monoballs into control arms if they are not already installed. There should be 1) 1/2" spacer between the monoball and control arm and 1) 1/8, 1) 1/4, and 1)3/8 spacer below the control arm followed by the nyloc."

and

"Make sure there is 1) 1/4" spacer above upper monoball and 1) 1/8", 1) 1/4", 1) 3/8" spacer below upper monoball."

Thanks Brian. I have written to Panoz on this as I am interested in what roll center testing was/has been done and any grip benefits that may have resulted. Will advise if there is any info of benefit.

Kel.