19 row v. 25 row oil cooler

Modshack

Have you ever felt the cooler after an install and firing it up from cold? A significant amount of circulation is readily evident almost immediately. I just did my 4th cooler install with these same parts just a week ago. The cooler will get fairly hot, well before the oil hits 180 degrees indicating more than a Pinholes worth of volume flowing through it. No one knows what percentage of bleed is occurring but Real world experience (on this car) has shown me that Desired temps cannot be reached very quickly, if ever, when it is cold out, using a commonly sized street cooler available in most kits. As Steve mentions above, a simple cover brings the cooler into the correct range when temps are cold out...
A simple U shaped piece of sheet metal works fine and the amount of blockage can be adjusted for your particular winter climate. Approx 1/3 blockage works for me in a North Carolina winter. More will be needed if you're up north:



Paint it black and it's all but invisible on the car. Takes but minutes to install or remove.

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Oil Cooler DIY: Here!