what should normal oil pressure be?
04-04-06, 06:27 PM
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what should normal oil pressure be?
I just finaly fixed my oil pressure gage, however since i had the needle off the gauge i think its calibrated wrong. on startup the gauge reads about 95psi, then after the car warms up it drops to about 45psi at idle. if i can get a general consensus of what average pressure readings are i can try to set the needle correctly.
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04-05-06, 03:45 PM
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Ted's got it all on his sight http://www.fc3spro.com/
Its supposed to be around 30 at idle and no more than 80 at higher rpm's. Although Ted mentioned that high oil pressure isint neccissarily bad...
Oh and at startup (cold) its supposed to go to like 80psi due to the bypass oil pellet (i think thats whats it called) opening to allow oil to circulate the rotor chamber.
Its supposed to be around 30 at idle and no more than 80 at higher rpm's. Although Ted mentioned that high oil pressure isint neccissarily bad...
Oh and at startup (cold) its supposed to go to like 80psi due to the bypass oil pellet (i think thats whats it called) opening to allow oil to circulate the rotor chamber.
04-06-06, 12:41 AM
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i dont know if my stock oil pressure gauge is off or what. here's the readin
under operation: 60
idle: between 30 and 60 (45 i guess) and idle speed is 800
car is a 88 t2 all stock.
Is that normal??
under operation: 60
idle: between 30 and 60 (45 i guess) and idle speed is 800
car is a 88 t2 all stock.
Is that normal??
04-06-06, 01:20 AM
#12
Originally Posted by Sgt. Pepper
My stock guage shows around 20PSI at idle and 60PSI when driving. I heard that the stock guages suck. I'm also idling at 650, maybe that's why my idle PSI is so low?
04-06-06, 01:21 AM
#13
high oil pressure is mainly only bad on turboed engines because it can be forced past the turbo seals.
the majority rules though, 30-45 at idle and 60ish when cruising, it should only read higher than 60 if there has been an oil regulator modification made. i prefer not to run over 60psi on turboed engines for reasons stated earlier, it can be done but the turbo would require it's own regulator or regulatory device.
the majority rules though, 30-45 at idle and 60ish when cruising, it should only read higher than 60 if there has been an oil regulator modification made. i prefer not to run over 60psi on turboed engines for reasons stated earlier, it can be done but the turbo would require it's own regulator or regulatory device.
04-06-06, 12:34 PM
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Originally Posted by Karack
high oil pressure is mainly only bad on turboed engines because it can be forced past the turbo seals.
the majority rules though, 30-45 at idle and 60ish when cruising, it should only read higher than 60 if there has been an oil regulator modification made. i prefer not to run over 60psi on turboed engines for reasons stated earlier, it can be done but the turbo would require it's own regulator or regulatory device.
the majority rules though, 30-45 at idle and 60ish when cruising, it should only read higher than 60 if there has been an oil regulator modification made. i prefer not to run over 60psi on turboed engines for reasons stated earlier, it can be done but the turbo would require it's own regulator or regulatory device.
04-10-06, 02:27 PM
#18
Originally Posted by J-Rat
Well, theoretically you can adjust pressure down by lowering the viscosity of the oil used.
According to the FSM, standard pressure is about 64-78 PSI on a 3k free rev.
Rat
According to the FSM, standard pressure is about 64-78 PSI on a 3k free rev.
Rat
you are correct... but lowering the viscosity would only affect the lower rpm...
once the rpm gets high enough, it will still be where the OPR is set at...
04-12-06, 11:57 PM
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Originally Posted by J-Rat
Well, theoretically you can adjust pressure down by lowering the viscosity of the oil used.
According to the FSM, standard pressure is about 64-78 PSI on a 3k free rev.
Rat
According to the FSM, standard pressure is about 64-78 PSI on a 3k free rev.
Rat
I must be running the wrong oil then. 20W50 Royal purple it will be from now on.... Mine stays right around 50 at idle.. At WOT max maybe 70... Although a turbo rebuild is immenent.... I found oil in the intake duct....Can the cold side leak oil? I am assuming so.... Man i just need to strip this engine and start from bare block......
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