| 2. A mechanical interconnect between the exhaust waste gate valve and carburetor butterfly which is operated by the pilot's throttle control. The relationship of the wastegate position to butterfly position is such that at ground level, the rated manifold pressure and power occur at less than full throttle. This is done so that the throttle can be advanced by the pilot during climb to maintain rated manifold pressure. A pop-off relief valve is installed between the turbocharger and carburetor to protect the engine if manifold pressures exceeds the approved limit. During climb at a fixed throttle condition, manifold pressure will decrease at the rate of approximately- 1 inch for each thousand feet. Manifold pressure will respond to leaning by increasing as mixture is leaned to Best Power, and decrease when further leaned to Best Economy Throttle movements should be made slowly with this type of turbocharger installation. |