Low Idle Oil Pressure, Wanting to find out how easy it is to install Tangerine's oil pressure relief kit Options

[Highland]

The engine is a fresh rebuilt 2056 stock D-jet engine running Brad Penn 10W40. Once the oil gets warm the idiot light comes on and the oil pressure gauge (electrical VDO) goes to almost nothing.

Thinking about trying Tangerine's Oil pressure relief valve:

http://www.tangerineracing.com/oilpressurerelief.htm

Is it pretty easy to install with the engine in the car? Does it slide in easily or does it need to be pressed into the bore?

The description says it bypasses the oil cooler so is the oil always going through the oil cooler even on cold start?

One more note. I misplaced the engine's original plunger and spring assembly so I bought a used one. I have since found the original spring and plunger. Just wondering if anyone thinks putting the original part back in will fix the problem. The original engine was built as a 1.7 and I don't recall it having this problem.

[porschetub]

The engine is a fresh rebuilt 2056 stock D-jet engine running Brad Penn 10W40. Once the oil gets warm the idiot light comes on and the oil pressure gauge (electrical VDO) goes to almost nothing.

Thinking about trying Tangerine's Oil pressure relief valve:

http://www.tangerineracing.com/oilpressurerelief.htm

Is it pretty easy to install with the engine in the car? Does it slide in easily or does it need to be pressed into the bore?

The description says it bypasses the oil cooler so is the oil always going through the oil cooler even on cold start?

One more note. I misplaced the engine's original plunger and spring assembly so I bought a used one. I have since found the original spring and plunger. Just wondering if anyone thinks putting the original part back in will fix the problem. The original engine was built as a 1.7 and I don't recall it having this problem.

Try running 20/50 and see what happens,thats what you should be using anyway.
Your issue is a serious one so you need to get yourself a mechanical gauge so you can exactly know what pressure you have,I won't run up any new build engine without a mechanical gauge hooked up.
Did you measure the crank and replace rod bearing during the build ,reason I ask is this oil pressure issue is common but mainly on worn high mileage engines,it can be related to a worn oil pump also.
Try putting the original spring and plunger back in,just make sure the piston moves freely in the bore with a little oil on it,good luck.