Pete Munroe Pete I have had the same problem. ended up with adding 1 extra quart of
oil to the system and 3 quarts for the accusump. I have the accusump with 40psi to help save the motor on long sweeping turns or high bank oval parts of tracks. It sound like something did get into the pump. You banged the motor off the limiter, I have done this too but not lost
oil pressure. For my 2 cents, I am pulling the
oil panand replacing the oil pump with a blue printed one. I would also look in the bottom of the pan for any debrie or metal flakes. If found, pull motor. Not an easy choice but could save you alot of money now and not break the motor. It's no fun to oil down a track and some tracks give you a bill for time and materials up to $500.00. The other possiblitity is that the gear in the oil pump jammed or is loose on the shaft. When the oil is hot enough the gear may just start slipping and it just happened at this time of the race. Also check gasket or "o" ring on pickup tube and replace. I think motor is not damaged at this time. Good luck Rick L.