DesertNomad
Well-Known Member
- Joined
- Jun 17, 2015
- Messages
- 952
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I am based at Reno (4415' MSL). It's hot here... 95° or so.
During climb-out, there seems to be no way to keep my CHTs under 400. During run-up, I lean for best power by setting the mixture approximately correct, going to 2000RPM and then moving the mixture to best RPM and then in a hair more than that.
Vy is 85kts but even if I climb at 100kts or even 105kts (which isn't really climbing much at all), my CHTs will be in the 390-400 and #2 will go near 410.
The highest I have seen #2 go was 419. It has done this twice. Once in Death Valley last April and again today climbing through about 8500' here. I was under the hood doing IFR training so I am not sure how long it was high. The problem is that if I stay low, it will never cool, but to climb keeps the CHTs high.
My engine monitor is currently to the lower right of the throttle quadrant and during my annual in September I am going to move it to the main panel where it is right in front of me. It bothers me that I can't really look at it too often while maneuvering under the hood.
I know Orest changed the metal tab along #2 but I am not sure I could get that approved by the FSDO here.
At cruise up around 9-11K I am seeing CHT in the 360 range, so it is only on climb out, but with the mountains around here, you have to climb to get over the rocks.
During climb-out, there seems to be no way to keep my CHTs under 400. During run-up, I lean for best power by setting the mixture approximately correct, going to 2000RPM and then moving the mixture to best RPM and then in a hair more than that.
Vy is 85kts but even if I climb at 100kts or even 105kts (which isn't really climbing much at all), my CHTs will be in the 390-400 and #2 will go near 410.
The highest I have seen #2 go was 419. It has done this twice. Once in Death Valley last April and again today climbing through about 8500' here. I was under the hood doing IFR training so I am not sure how long it was high. The problem is that if I stay low, it will never cool, but to climb keeps the CHTs high.
My engine monitor is currently to the lower right of the throttle quadrant and during my annual in September I am going to move it to the main panel where it is right in front of me. It bothers me that I can't really look at it too often while maneuvering under the hood.
I know Orest changed the metal tab along #2 but I am not sure I could get that approved by the FSDO here.
At cruise up around 9-11K I am seeing CHT in the 360 range, so it is only on climb out, but with the mountains around here, you have to climb to get over the rocks.
