Oil Psi?
01-05-2007, 09:55 PM
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Oil Psi?
What Psi should my oil be at during mid to heavy acceleration? I never noticed it before but I started hitting 90-120 psi. Does that sound right?
I'm running synthetic oil and recently have changed it with a new filter.
I'm running synthetic oil and recently have changed it with a new filter.
01-05-2007, 10:10 PM
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Originally Posted by USN HM 350Z
during hard acceleration in 3rd/4th I go to about 90psi. Usually never any higher when the car is warm.
@ 70mph in 6th gear I am at 60psi.
@ 70mph in 6th gear I am at 60psi.
thanks for your help!
01-06-2007, 01:21 AM
#4
Originally Posted by USN HM 350Z
during hard acceleration in 3rd/4th I go to about 90psi. Usually never any higher when the car is warm.
@ 70mph in 6th gear I am at 60psi.
@ 70mph in 6th gear I am at 60psi.
+1
The only time I ever see 120 PSI is if I blip the throttle a little when the engine is stone cold in the morning.
If I saw 120 under moderate acceleration on a well warmed up motor, I would kinda start to freak a little.
01-06-2007, 04:42 AM
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The critical oil pressure occurs in extreme hot weather* at idle...........other than that 10 psi per 1000 rpm is enough.
Oil pressure varies with brand of oil and it's real instanteous viscosity [temp curve]
*coolant at 200F and oil sump at 220F.............afterall the bearings/under piston crowns are running 300-350F.
Oil pressure varies with brand of oil and it's real instanteous viscosity [temp curve]
*coolant at 200F and oil sump at 220F.............afterall the bearings/under piston crowns are running 300-350F.
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