Reading this thread, I thought I apt to share that my GT-S has a very slight vibration at speeds in excess of 130mph which is especially noticeable once you get to 150-160mph. I find this very annoying in my day to day commute
In all seriousness, this was noticeable on my recent trip in Europe and I wonder what's causing it? Ive had the geo double checked and its spot on, I doubt its the diffs or driveshafts etc as its not engine speed related and only shows itself under very high speed conditions. It feels like a slightly out of balance wheel so it'll be interesting to see if it's cured when the new wheels and tyres are fitted but after that, I can't really think of anything else as it's not like I can get Graypaul (or anyone, including me in this country) to replicate it!
Anyway, the point of this post is this question...I thought an out of balance wheel would make itself obvious at much lower speeds...has anyone experienced where a balancing issue could be appatentat only much higher speeds?
Like I said, it's obviously impacting on my day to day enjoyment of the car And aplogies to the OP for the thread hijack