Due to the fact that I have been having issues with my Mechanical Fuel Pump on the engine getting to hot I wanted to see if I could reduce the engine oil temperature to some degree. My engine baffling takes air from just in front of cylinder #2 into a horizontal round 3" diameter flange. Then routes the air via scat hose to the oil cooler which is mounted on a stand off bracket from the firewall. I believe that the air entering the cowling is mostly going into the high pressure cavity above all cylinders. As a result I believe the airflow into the scat hose from the horizontal opening is somewhat restricted.
I have fabricated a custom 90 degree Ram air intake scoop out of fiberglass to sit inside the 3 inch diameter flange at front of cylinder #2. I carved a shape out of foam then glassed over it making sure the downward tube fits perfectly inside of the flange. The opening of the intake across the bottom edge is then lock wired in two locations to the lower cowling intake lip using 24 gauge wire.
Results of this ram air to oil cooler has proven extremely beneficial as my oil temperature has gone from 203 F to 179 F a reduction of 24 degrees fahrenheit.
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