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Old 02-04-2017, 01:48 PM
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Tom Vaught Tom Vaught is offline
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Join Date: Dec 2001
Location: The United States of America
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Let the engine/oil temp tell you if you need a oil cooler or not.

If you already have more oil volume 10 quarts vs say 6 quarts obviously it takes more time to add oil temp to the oil. Drag race blasts rarely put enough increase in oil temp to mean anything (even with a partially filled block on the street). Put the same Engine in a road race application for a 30 minute race at high speeds and you might have a different story.

Engines make heat. Heat Energy goes to push down on the pistons, Heat Energy goes to spin Turbocharger blades or else it goes out the exhaust. Heat Energy goes into the cooling system to be cooled by the radiator. Oil gets hot, it splashes on the cooling jackets of the block, the water in the block carries the heat away to the radiator.

Remove all of the water from the block, run your engine at high loads and read the oil temps. The oil temps will be very hot under any load condition.
We built a rig one time to measure oil temps actually at the rod bearings under a high load. Extremely high oil temps under any load. This is based on real world testing no BS.

Tom V.

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