I think I hurt my car I was racing a honda 2000 sunday I won the race by a wide margin{10 car lengths}when I was crossing the finish line I saw smoke out the tail pipe.When I popped the hood I noticed that the oil fill cap was off and there was pressure out the oil fill tube.I also notice oil leaking from the three bolt turbo header connection. I pulled the plugs driver side had oil on them.I then did a compression test 150 on 3,4,5,6. Compression on #1 90 #2 0!!!! I know this has to be the problem but what causes this piston/rings or hg.