Cowling Vents
Posted: Mon Feb 28, 2022 1:45 pmThe Waiex I bought has screened vents in the cowling on the top to let heat out over the turbo and TBI. I know the first time I flew the aircraft the gas cap was so hot I couldn't touch it.
My question is whether these screened openings are actually detrimental to the proper cooling of the turbo and TBI while in flight? Any possible negative aspects to these openings?
My mechanic installed two small scoops over these screened openings in an attempt to get more airflow down and over the turbo and TBI. He installed a funnel under each screen and a short section of hose that directs scooped air directly onto these devices. Thoughts on this? This aircraft is so streamlined I fear this may have significant drag implications. I am getting mixed answers as to the efficacy of this arrangement for cooling.
To further enhance cooling, at least theoretically, the bottom cowl tabs were extended about an inch to try and produce more suction through the engine. Again, is this a feasible approach? Is it worth the drag penalty?
I need folks smarter than me and more familiar with this aircraft to make sure I don't do anything stupid. Appreciate your feedback.
My question is whether these screened openings are actually detrimental to the proper cooling of the turbo and TBI while in flight? Any possible negative aspects to these openings?
My mechanic installed two small scoops over these screened openings in an attempt to get more airflow down and over the turbo and TBI. He installed a funnel under each screen and a short section of hose that directs scooped air directly onto these devices. Thoughts on this? This aircraft is so streamlined I fear this may have significant drag implications. I am getting mixed answers as to the efficacy of this arrangement for cooling.
To further enhance cooling, at least theoretically, the bottom cowl tabs were extended about an inch to try and produce more suction through the engine. Again, is this a feasible approach? Is it worth the drag penalty?
I need folks smarter than me and more familiar with this aircraft to make sure I don't do anything stupid. Appreciate your feedback.