too much oil pressure?, high OT on the freeway Options

[VaccaRabite]

My 2056 is getting elevated oil temps on the freeway. I am using a high volume pump, and seeing about 40 pounds of pressure on the freeway when my oil is up to temp.

What I think is happening is that there is too much pressure, and the oil is not being pumped through the oil cooler due to the check valve closing the passage. However, this is just a guess, as I don't have any way to test it. All I know is that when I am driving at revs, oil temp goes up and if I keep driving at higher revs the oil temps stay up). if I drop revs, oil temps fall back into place, but I can't do that on the freeway without building a lot of head heat.

Before I go through the trouble and expense of adding an oil cooler, I want to make sure that I have checked out the simple fixes first.

What do I do to make sure oil if going through the oil cooler? What is the point where pressure cuts off passage through the cooler?

All tin is in place, and fan housing flaps divert air over the oil cooler 100% of the time (no thermostat in place, so the flaps are always set to cool).

Zach

[Borderline]

Zach, I haven't had the opportunity to verify this, but. I read an article on the internet which was promoting lower viscosity oil. This guy said that high viscosity oil limits the amount of oil flow through the bearings. He said that going to a lower viscosity oil will allow the oil to flow through the bearings more easily and will result in lower oil temps. That's the short version. I was going to test this on my new engine. The Brad Penn break-in oil is 30 wt and I figured if the oil pressures and temps stayed good during break-in I would stay with the the 30 wt when I changed the oil. I know B-P oil is not cheap, but it might be worth a try. Also, the original spec in the owners manual specified 30 wt. I'm one of those guys who fell into the trap of thinking higher viscosity is better. Not always.

FWIW just trying to help