[philinjax]

On a cold start, the stock engine oil pressure bypasses the oil filter via the filter pressure relief valve and feeds oil to the engine oil pressure bypass valve and the oil cooler, in parallel. The cold oil bypasses the engine oil bypass valve and directly feeds the engine bearing oil circuit.
As the engine warms up, the filter bypass begins to close forcing some oil to pass through the filter and the engine oil bypass begins to close forcing some oil to pass through the cooler. When the engine is fully warmed up, both the filter and engine bypasses are fully closed and all of the oil from the pump goes through the filter and through the cooler to the engine bearing circuit.

With a race engine and remote oil cooler only, the purpose of the cooler T-stat is to allow the engine to warm up as quickly as possible. Since the stock engine bypass will be fully closed when the engine is warm, I don't see any value in eliminating the engine oil bypass.

philinjax