Technical Long time to build oil pressure

Hey guys.
Im a little concerned about the time it takes to bulid oil pressure, in my newly rebuild sbc.
It takes 8-10 seconds of cranking, or up to 5 seconds of idleing, before the gauge needle starts to move, even with engine off a pretty short time.

Its a 1986 350 with stock oil cooler adapter over the oil filter, HV oil pump, and its an anti drain oil filter.
The oil cooler is mounted in front of radiator with inlet at the bottom and outlet att the top.

Is this normal or something to be conserned about?

Ill be thankfull if anybody whold share their thoughts

 

8-10 seconds is a lot of cranking , why?. My be just gauge/sending unit lag . What's running oil pressure ?

 

Most likely the gauge, check it with a good mechanical gauge.

 

Gauge topic covered. Next to try if gauge isn't the issue. Try running with oil cooler adapter removed to see if there is any improvement. Sounds a little off topic by the way?

 

Sounds like a tow vehicle. Oil cooler not normally needed on a hot rod. I would bet the problem is to be found in that extra 8 or 10 feet of plumbing for the oil cooler.

 

I have a start button so it feels better to crank it till i get oil preassure, and its a mechanical gauge.
Cold Idle pressure at 60psi and about 70psi at cruising speed.

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Its a new bosh mechanical gauge.

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Ive thought about that, i dont really need an oil cooler i think, My oil pan holds 9 quarts

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Take off the oil cooler, and plumbing and see how long it takes to build pressure.

 

Hope the oil cooling system was flushed before rebuild went in?

 

If your remote oil cooler is mounted higher than the pan, the oil will drain back to the pan. When you start your car the oil takes a few seconds to recharge the lines.

 

That makes sense, but this engine had the oil cooler built in the Side of the radiator, on the van it came from, and that is sertanly higher than the oil pan.

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Consider that a SBC's lifters will clatter for a second after an oil change sometimes, then never again.

I/e if you don't hear the lifters clattering, I think you're okay.

Just screw in a mechanical gauge into a pressure port and see what you really have.