Went out to the track last night and on third run tried leaving at 3100 rpms. Second launch at 2500 was a 2.0 on the 60 ft.... street tires. Anyway, when I dumped it at 3100 I got a pretty loud clank and a lot of wheelspin. Rolled through easy as my time was shot. I could feel nothing wrong on the return, but when I got back to the pits several guys asked what broke. Even the announcer said something had broken. lol. Spooked me and I didn't make any more passes, but put the car through the paces on the way home - thoroughly. I can feel no problem. Any thoughts on what might be the source of "clank" before I crawl back under or drop it off at the dealer?? Thanks in advance.