Hey Guys, I'm new to Porsches. I got a 03' 911 turbo with 60K miles. It was vibrating at >70 mph. Took it to the shop for a balancing, which it needed, and it does fine now until about 100 mph. Question: Is there a diferent balancing for high speeds? If it balance for 70 shouldn't it be balanced for 100 plus? Could the vibration be caused by something different?

 

Off the car spin balancers spin at 1 speed, to get a higher speed truer balance you must find someone that specializes in ON the car high speed balancing. These can spin the wheel at 100mph + and takes into account every thing that rotates : brake rotor, axles etc.

P.S. It's always easier to buy Michelins in the first place.