I've heard the rule of thumb that an engine should have 10 psi of oil pressure for every 1000 rpm.
The manual for my Acura Integra GS-R indicates that normal oil pressure is 50psi at 3000rpm with a warm engine, or 17 psi per 1000 rpm.
What would be the reasons for the engineers to choose the oil pump / oil grade / tolerances that result in a higher oil pressure like this? If I experience lower oil pressures (say, 12 psi per 1000rpm) due to high oil temperature at the track or a thinner grade of oil, will this cause issues? Would there be a reason that this higher oil pressure would be required?
Note that above 5000rpm or so, the pressure is pegged at 80psi due to the bypass, yet the engine revs to 8000rpm, resulting in 10psi/1000rpm. It seems to me that the higher pressure at lower rpm is not really required. Thoughts?
The manual for my Acura Integra GS-R indicates that normal oil pressure is 50psi at 3000rpm with a warm engine, or 17 psi per 1000 rpm.
What would be the reasons for the engineers to choose the oil pump / oil grade / tolerances that result in a higher oil pressure like this? If I experience lower oil pressures (say, 12 psi per 1000rpm) due to high oil temperature at the track or a thinner grade of oil, will this cause issues? Would there be a reason that this higher oil pressure would be required?
Note that above 5000rpm or so, the pressure is pegged at 80psi due to the bypass, yet the engine revs to 8000rpm, resulting in 10psi/1000rpm. It seems to me that the higher pressure at lower rpm is not really required. Thoughts?