I was out road racing this weekend and i noticed somthing very strange. On the top end mainly 5th and 6th gear above 7500rpms the car starts smoking like crazy. Are my rings going bad? It doesnt smoke in any of the other gears even if i run it to red line. Im thinking i may need to stop driving it for a while until i can get it checked out. But any sugestions on what could cause it to do that?

2000 S2000, 80K miles, completly stock