straight line stability - 986 Forum - The Community for Porsche Boxster & Cayman Owners

RandallNeighbour · 09-22-2009, 03:11 PM

spacers will always accentuate any inherent wheel imbalance, even if they're totally round and true.

jaykay · 09-22-2009, 04:03 PM

yes very true......tried that but the balance was fine perhaps I will have to try again..

turbo23dog · 09-22-2009, 04:10 PM

At the risk of stating the obvious, are you sure that the tires are inflated to the recommended PSI? I've seen an under inflated tire on one side cause this on several different cars i've owned.

jaykay · 09-22-2009, 04:32 PM

very good point; yes low profiles are really sensitive to this; they were okay as checked with my gauge...but I will try another

the spacer vibration was quite violent and 110; 130kph so this seem to point to a problem with them rather than a tire pressure differential.

to further complicate this thread I did have a lower rear stress bar put on at the same time!!!?