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A hole was cut in the middle of the trunk and a custom scoop made to funnel air in to it. We did testing on the air flow by taping the strands of a mop from the back of the car over the inlet for the air cooler before making the scoop and used a go-pro to film the strands and see where the air flow was at race speeds. The cooler fan actually did suck the air in without the scoop so we tested some sessions with a "sample scoop" made out of an in box that you would see in an office on the wall. We used double sided tape and zip tied it through the mesh in the oil cooler in let. Temperatures were improved by 10 degrees with the scoop so even though air flowed without it was improved with the scoop. I'll post some pictures of that and also some screen shots of the temperature differences.
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