Get rid of the Fram. They have been known to cause pressure issues. Use an AC-Delco or Wix (there are other good ones out there, too-just don't use Fram).

 

I see it was not, but you do need to say...

 

i think i'm ok now...
let run for a while it held at 70 for like 12 mins, then gradually fell to 40...
stays at 40 then when i increase rpm's it goes to 70...
does that sound more like it?

thanks for the help

 

thats seems normal.

 

That's more reasonable, yes. I wouldn't worry about it anymore.

 

I'd still get rid of the Fram filter when you can. Their quality is poor compared to other filters.

 

75 PSI at all RPM's, If this is a stock engine with no mods it may have a stuck by pass. Does it increase when cold? How much. It is possible to actually blow the filter off the block if your by pass sticks in cold weather. I have even seen the oil pump drive shaft twisted to fracture by excessive oil pressure because of a stuck by pass. If this engine has been overhauled I would guess that a High Volume and possibly a high pressure Oil pump was installed. You can buy High Volume pumps and they come with optional by pass springs to change to high pressure. Melling and Sealed Power both offer each. Some of the best engine builders today will run tight clearances on the crankshaft, Rod and mains at .0015 in the old days you commonly saw rebuilt engines with Rod and Mains at .0025 to .0035. At .0015 your oil pump will be in bypass mode by 400 RPM, with clearance at .0035 it may need 1000 RPM to reach by pass. Bring up your RPM's, when the oil pressue quits climbing you are in the by pass mode. The oil pump will maintain great oil pressure at idle with tight rod and main clearance because it is already in the by pass mode at low RPM, idle. Less oil is spilling off the rods and mains.
The old racers rule of thumb on oil pressure minimum is 10 pounds per 1000 RPM. These same guys thought a loose engine was a fast engine.
Newer OEM specs run less than that, they have found oil pumps take horsepower to run them. A smaller pump pushing 5-20 W oil with 25 pounds at idle and 45 pounds at 4000 RPM can make more horsepower and get better MPG than the old school method of using a High Volume Oil pump pushing 30 W with 60 pounds at idle. Separate from these facts, you will always be more comfortable that your engine is healthy if you have solid oil pressure at idle, it lets you know all is well and your bearings have not started to wear out yet. Something else to consider when going high horsepower, big cams .600 lift and larger, and big valve springs load the cam bearings. Cam bearings when worn can cause a large leak in the oiling system resulting in low oil pressure at idle. Sorry, probably more that you wanted to read.

 

75 PSI at all RPM's, If this is a stock engine with no mods it may have a stuck by pass. Does it increase when cold? How much. It is possible to actually blow the filter off the block if your by pass sticks in cold weather. I have even seen the oil pump drive shaft twisted to fracture by excessive oil pressure because of a stuck by pass. If this engine has been overhauled I would guess that a High Volume and possibly a high pressure Oil pump was installed. You can buy High Volume pumps and they come with optional by pass springs to change to high pressure. Melling and Sealed Power both offer each. Some of the best engine builders today will run tight clearances on the crankshaft, Rod and mains at .0015 in the old days you commonly saw rebuilt engines with Rod and Mains at .0025 to .0035. At .0015 your oil pump will be in bypass mode by 400 RPM, with clearance at .0035 it may need 1000 RPM to reach by pass. Bring up your RPM's, when the oil pressue quits climbing you are in the by pass mode. The oil pump will maintain great oil pressure at idle with tight rod and main clearance because it is already in the by pass mode at low RPM, idle. Less oil is spilling off the rods and mains.
The old racers rule of thumb on oil pressure minimum is 10 pounds per 1000 RPM. These same guys thought a loose engine was a fast engine.
Newer OEM specs run less than that, they have found oil pumps take horsepower to run them. A smaller pump pushing 5-20 W oil with 25 pounds at idle and 45 pounds at 4000 RPM can make more horsepower and get better MPG than the old school method of using a High Volume Oil pump pushing 30 W with 60 pounds at idle. Separate from these facts, you will always be more comfortable that your engine is healthy if you have solid oil pressure at idle, it lets you know all is well and your bearings have not started to wear out yet. Something else to consider when going high horsepower, big cams .600 lift and larger, and big valve springs load the cam bearings. Cam bearings when worn can cause a large leak in the oiling system resulting in low oil pressure at idle. Sorry, probably more that you wanted to read.