i was wondering about my oil pressure being low.....at an idel of 700 800 rpms my oil pressure is at the 20 mark somtimes a little higher it jsut depends.....i ask this casue i did pulleys and did not put the dampner on until like 6 months later and have ran it pretty hard with it off.....my buddy blew his motor that way and i am conserned i only have 57,000 miles on the car.....

 

20+psi at idle is more than adequate. I lot of people with high mile engines would be glad to see that much pressure. I wouldn't be concerned.

 

ok cool....thanks thats alot off my chest.....

 

As Fred said 20psi isn't bad. I wouldn't worry about it.

 

Rule of thumb is 10psi per 1K rpm.

 

Yep you are fine, from my understanding GM says 6psi at idle is fine for LT1s. My engine however lost all oil pressure at a hot idle due to worn cam bearings. I have a new shortblock on the way. Engine had 109k on it, in a way it is good because now I will a have an engine with 0 miles on it.

 

I have low oil pressure when the car is hot at idle, it sits just below the 1/4 mark. I would guess 4psi. Is this dangerous?
I just did a rebuild.

Durning normal driving and at startup the pressure looks good/normal

 

If you just did a rebuild your oil pressure should be 10x that much.

 

The 1/4 mark is 20psi so just below isn't 4psi. If 4psi is right, yes it's dangerous. If it's at 20psi it's still not very good if you just did a rebuild.

 

what should I look for in fixing the issue?