9sectruck

iTrader: (9)

its back together forged rods,pistons and a new cam, stock crank, with a new millings standered pump, I fired her about a hour ago and was checking things over and was watching the lap top and seen that the engine was holding 52-53psi (cold) (10w40) took the car for a drive to get a heat cycle in the engine and noticed the warmer it got the lower the oil pressure got at idle (190 engine temp) it was running around 22-24psi. going hwy speeds 2100 rpm it was holding right around 42-45.
I did hit 4800rpm at one time and I seen it was just in the 50s....
now for the engine bearing specs..
mains are 2.4-2.6 and all the rods at 1.9-2.1, I know with aluminum block it will expand so the clearance will open up.
Before you guys say the o ring... the oil pump was install on a engine stand with the o ring on the tube and was very well coated with Vaseline and it went right in no problems.
what do you guys think oil pressure should be at any given rpm ???
is this to low for this engine with my blower.
thanks for looking guys!!!

SPRAYED 01

iTrader: (22)

I think its totally normal

Fb0dy0nly

iTrader: (10)

you only need 10psi of oil pressure for every 1000rpms. So even at WOT, you are only needing ~60psi or so.
It is totally normal for a car to lose pressure as it heats up as the oil thins some.
Just watch for sudden surges and extreme lows and highs on the gauge.

Captain_Stabbin

i agree!!!