Thank you for clearing that up, although it sounds more like a drag application not something safe or reliable for tracking. I could be wrong

 

When using the car for extended periods, like on a racetrack it's essential to have a cooler for the differential. we found out the hard way on out miata, it has stock renesis and running a 4.8 r&p, after 1 hour of circuit racing the oil was black like from a diesel and you could smell it from a distance.. differential was completly black..

will be using a pump from rb racing and small heat exchanger almost like an fd oilcooler