Thread: OIL Pressure woes...

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it will build to 60 cold. it builds psi when you get on it. cold it idles at 50.

so heat it is. kinda sucks, i bought an 8 quart pan to get more capacity to fight the heat. guess i need to run a cooler on it...

will a cooler pull my pressure down more though?

Originally Posted by jeepman1320

it will build to 60 cold. it builds psi when you get on it. cold it idles at 50.

so heat it is. kinda sucks, i bought an 8 quart pan to get more capacity to fight the heat. guess i need to run a cooler on it...

will a cooler pull my pressure down more though?

well that has to do with hose size .and voume of oil cooler comes in play i would think. if this thing makes 40 psi at 4000. and makes 50to 60 max at wot live with it .i thinking you have 3 + on mains and rods and if king hp the rear main is at 004+. so hot she drops has the oil thins out . you could by the mellings mel 10778 and you can adjust the by pass in the oil pump but that may not help alot

This is just for conversation and nothing more.

We built a chevy 454 years ago. Rods at .0025 Mains at .0028.

Had an Melling HV pump in it on the stand and started playing with the pressure relief spring in the pump. We would spin the pump and watch the pressure readings after adding shims. Kept adding shims pressure went up and up.

We wanted to see where it would just give up and produce no higher pressure. We were shocked to see over 250 psi. This is with a spacer we finally installed to limit the relief to just lift off the seat in the pump and no more. This was on the stand now, not running but we would rotate the crank.

My point is the pump is capable of producing high pressure.

You never mentioned what the oil pressure in yours was on the first fire up.

Good luck my friend, I hope you get her figured out!