Virus |
06-18-2007 10:59 AM |
Vibration and noise during track event
Had a track day event this past weekend at VIR. I was scheduled to run four-25 minutes sessions per day but on my third run on my first day, on hard braking/down shifts and especially on right turns, the car started making vibrating noises under my feet. The instructor and I noticed it at the same time. I jacked it up to see if my downpipe was hitting something or the exhaust broke loose, like a missing hanger or a busted clamp but everything looked good. Drive shaft and the u-joints - OK. Suspension components - OK. Wheels and bearings - fine. I cannot recreate it on the road and it looks like it only can be recreated during track conditions with high heat, speed and G's.
I eventually packed up after the 4th run because it only got worse and went home pissed off because I could not find anything obviously lose underneath and didn't want to risk anything. Any ideas or similar experience? I'm going to pull the down pipe to see if it's that hitting against the transmission tunnel.
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