oil pressure
07-25-01, 11:36 AM
#1
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oil pressure
Can someone please help me out on this one. Mainly, I have a 1st gen with a 13b streetport and just switched to a 79 oil pressure regulator shimmed for higher pressure with the front cover’s oil by-pass shimmed as well. While warming up or with the engine cold, I can get over 80 psi. I know that the oil thins out by appx 10psi but how come the most I get is about 50-60psi once the oil temp increases to 160*F. do I need to change the oil pump or is this normal.
Thanks.
Thanks.
07-25-01, 07:54 PM
#2
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i have an 85 GSL-SE and the oil pressure generally stays between 55-60 psi at an rpm range of 2500-3000. this is using 10W-30. It does increase to over 60 when rpms climb over 3500. I have driven it like this for a year without any problems. Using 20W-50 might increase the oil pressure a bit. I did see pressure drop to 50 psi at higher rpms when i had a leaky oil cooler. So you don't need to worry too much about it.
07-26-01, 07:15 PM
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Mine will go up around 70 psi when cold but definately wants to settle around 60psi when hot. the haynes manual says 62-84 psi at 3000 rpm. I am not sure if that applies to only 12A motors or not. I read some info on atkinsrotary.com which said the bare minimum pressure reqd was 15 psi. What weight oil are you using anyway?
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