OHSIXX

I idle at 35 psi. At speed it seems to be in the 60 psi area.

The guage is new, but had a little problem with the installed. Everytime we bled it leaked. So, sorta gave up on getting all the air out.

bhmyers

I run close to 80 PSI while driving.

Robert N

At speed, I am at 65-70 PSI. I will idle at as low as 17 at 500 RPMs

Tom73

Too much??? All I know is that the Chevy standard for '73 was 40psi at 2000 rpm.

tom...

Mike Ward

There's no need to bleed the air out, has no effect on gauge reading one way or the other.

Your oil pressure sounds fine.

71'AirStrike

I get 70 psi at cold at 1800 rpm
when she warms up
idle at 750rpm 35psi
about 1900 to 2000 rpm the needle got to 62.

I asked my engine builder about "too much psi" and he explained to me that there is a "blowoff" part of the oil pump to prevent too much oil pressure.

dunno if thats true or not, but Ill bite
cheers
chad

vettfixr

I run about the same, maybe a little higher at idle. Don't worry about it.

gliot1

Smokey Yunick's rule was 10psi for every 1000 rpm. He claiimed it can be just as deadly to have too much pressure at low idle as to not have enough at high rpm. My understanding is most NASCAR cars try to adhere to that.

Alwyn678

Man runs almost exactly the same :cheers:

KenSny

You know you are running too high a pressure when you start blowing by all your 20 yr old gaskets that "seemed" to work before you changed pumps. Seriously tho, I run at near 80 at freeway speeds and around 30 at idle. I switched over to a Melling pump when I cleanup the bottom end.

jpatrick636

I'm 30 - 80 as well. I also agree with Smokey, thats why after I put in a new oil pump and saw that I had 80psi, I started shifting at 8000. (just kidding)
:steering:

dewcustom

when you have high oil pressure there is a slight loss in horsepower part due to the running of the oil pump to acheive high presure and part do to the friction of having to move through the oil at high presure

haveing said that unless you are in a hard core race car than it is worth the miner hp loss for te gained protection

Matt Gruber

if the oil filter explodes...

KenSny

Probably only if you removed the bypass valve/spring would the filter explode. In most of our engines we only filter a portion of the total oil flow anyway.

yellow 72

With a high volume Melling pump and GM clearences on the bottom end mine is 35#@ idle and 70#@ 3000 hot.



[Modified by yellow 72, 9:50 PM 10/11/2003]