Turbo's are HKS GTRS (Garrett gt2860R-10)
They are ball bearing, so should have a prefitted restrictor....but that would suit the std oil pump.
Here are the specs of my pump....pumps alot more
The Reimax Oil Pump is the perfect replacement for the Achilles Heel of the RB26DETT. The OEM unit is notorious for starving tuned RB engines of oil at high RPM`s.
The Inner Rotor size has been increased from 77mm to 85mm, and the thickness of the rotor teeth has gone up from 11mm to 12mm.
The metal composition of the pump has also been changed from Sintered Alloy to SCM430H.
At 6000rpm, the Reimax High Flow Oil Pump flows 70L/min VS 47L/min from the OEM unit.
The pump's Regulator Valve opens at 7.2kg/cm2 (+/-0.3kg/cm2) of pressure, at 2000rpms, or when oil temperature hits 80 degrees Celsius.
Not only does this item boast great figures, it has also proven its build quality in Gr-A races throughout Japan.