LS1 Stock Oil Pressure
09-14-2015, 07:34 PM
#1
Racer
Thread Starter
LS1 Stock Oil Pressure
I have a 2002 coupe with 71k miles. Once my oil get hot (210 degrees) my oil pressure runs at 45 psi at 1500 rpm while cruising, 50psi @ 4K and 35psi @ idle 800. Just want to make sure that spread is normal. I run 5W30 Mobile 1 as directed. Just looking for a comfort. Thanks
09-14-2015, 07:42 PM
#2
Le Mans Master
Looks pretty normal to me...
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09-15-2015, 02:55 AM
#4
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Actually that seems above normal oil pressure--especially at idle--Most LS1's will drop down to like 15-20 LBS at idle when hot--
Old school thinking suggests that you need 10 LBS of oil pressure for every 1000 RPM's
So at 5000 you would want 50 PSI and at 6000 60 PSI--
You would die if you owned a new C7 where they switched from a high pressure system to a high volume system----at idle my C7 is about 15-20 PSI but at 6500 it only goes to a max of 45 PSI----scared me to death until I learned that they switched to a hi volume system--( called GM)--to verify that it was by design
Old school thinking suggests that you need 10 LBS of oil pressure for every 1000 RPM's
So at 5000 you would want 50 PSI and at 6000 60 PSI--
You would die if you owned a new C7 where they switched from a high pressure system to a high volume system----at idle my C7 is about 15-20 PSI but at 6500 it only goes to a max of 45 PSI----scared me to death until I learned that they switched to a hi volume system--( called GM)--to verify that it was by design
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09-15-2015, 03:41 AM
#5
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you're fine, nothing to worry about... if it were 15-20 at idle I would be more concerned and probably thinking about a new pump and/or possibly refreshing the motor
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