4G93T, factory oil pump, Mobil 1 (5W-50)
Remote Oil Filter and Oil Cooler
Autometer Sport Comp Gauge Tee'd into Oil Pressure Switch on Head
Dead Cold start 60psi (winter)
Warm idle 20psi
Full load 60psi
Full load max rpm - nudges 65 - 70 psi
The only time it has dropped below 20psi was...