Driving home from the track this afternoon, the car started to shimmy as I entered the interstate. At 70+ the vibration was so bad I had to slow it down to 65 or below to make it tolerable. Car ran great all day at the track... no vibrations or anything like this... last track session it ran perfectly.
Got is home, put it up in the air, checked out the driveshaft (looks fine), took each wheel off, checked the wheels (all weights still intact), checked the rotors, everything looked fine. One front wheel did have quite a few bits of rubber stuck to inside of the rim, so cleaned all that junk off the rims. Tires looked okay, no abnormal looking wear.
Any ideas? Another track day tomorrow. Hoping that one wheel on the front with some excess bits of rubber stuck to the inside was the culprit.
Got is home, put it up in the air, checked out the driveshaft (looks fine), took each wheel off, checked the wheels (all weights still intact), checked the rotors, everything looked fine. One front wheel did have quite a few bits of rubber stuck to inside of the rim, so cleaned all that junk off the rims. Tires looked okay, no abnormal looking wear.
Any ideas? Another track day tomorrow. Hoping that one wheel on the front with some excess bits of rubber stuck to the inside was the culprit.