Steve Sampson
Well Known Member
My RV4 is a carburated O-320 running P-mags on the advanced curve, and has a pretty standard signature in a full power climb. You can see it here in this data off my AFS3400.
My first question is when is the EGT temp too hot? At 13:59:36 EGT3 (green) hits its highest temp, 1473F. Is this acceptable?
(While we use the EGT mostly for leaning there must be a temp where the temp is just too high.)
CHT #3 is also the hottest, I cant get enough air to it I guess. At 400F I started increasing speed. I had let it get a little slow while concentrating on avoiding cloud, and volcanic ash
and the speed increase largly controled it below 420F which I think is quite acceptable.
I would welcome any input.
My second question is a unique anomaly. At 14;14:32 just after I had adjusted the prop (brown) down to just under 2000rpm it suddenly speeded up to around 2040 then dropped to 1775 very abruptly before continuing untouched just below 2000 as before. What/why might that happen? It certainly got my attention!
My first question is when is the EGT temp too hot? At 13:59:36 EGT3 (green) hits its highest temp, 1473F. Is this acceptable?
(While we use the EGT mostly for leaning there must be a temp where the temp is just too high.)
CHT #3 is also the hottest, I cant get enough air to it I guess. At 400F I started increasing speed. I had let it get a little slow while concentrating on avoiding cloud, and volcanic ash
and the speed increase largly controled it below 420F which I think is quite acceptable.I would welcome any input.
My second question is a unique anomaly. At 14;14:32 just after I had adjusted the prop (brown) down to just under 2000rpm it suddenly speeded up to around 2040 then dropped to 1775 very abruptly before continuing untouched just below 2000 as before. What/why might that happen? It certainly got my attention!
