Brief Description: Number 4 baffle and oil cooler, part 1
I starting fitting the oil cooler to the #4 baffle aft wall. My plan: Disregard the Vans plans, and follow a tactic used with great success across the Vans Air Force. Rather than mounting the oil cooler directly to the aft baffle wall, I'm using 3/4" aluminum square tube and 0.065" x 1" x 1" angle to build a standoff between the cooler and the baffle aft wall. This standoff creates a 3/4" deep plenum between the cooler and the baffle. Also, by reducing the baffle wall's air hole to just over half the oil cooler's inlet face area, we now create a Bernoulli effect, increasing air pressure at the oil cooler while reducing the amount of air robbed from the #4 cylinder's cooling effort.
