P pylotttt Active Member Aug 31, 2021 #1 Does anybody know if the OP-58 Cowl louver kit has any performance loss?
BH1166 Well Known Member Sep 1, 2021 #2 None Can’t say they helped, but no change in speed….so no loss and easy to install.
WingsOnWheels Well Known Member Sep 1, 2021 #3 My climb CHTs dropped by about 20 degrees and based on testing less than 1 knot change in top speed (ie not measurable without more advanced equipment)
My climb CHTs dropped by about 20 degrees and based on testing less than 1 knot change in top speed (ie not measurable without more advanced equipment)
