I was wondering if any of you Engine guys can help me understand the data I am getting on my IO540.
It is winter in VT and my #1 and 2 cylinders have been running cold - during higher MAP-RPM no issue but while I reduce the throttle to idle for landing the front two cylinders cool much quicker then the other four - so i decided to install the baffles pieces that go directly in front of these cylinders - but that I don't use in the warmer months.
Today was my first flight with the baffles installed OAT ~15F while the CHTs were more stable - the EGTs for these two cylinders dropped more quickly when I pulled it back to ide - 1&2 were about 200F below the other four.
Fight of concer
https://photos.google.com/share/AF1...?key=bW41dmNWMWZrSUlsSGpsNmNWZmx2Y0RpSkVCOHVn
This didin't occur to the same degree on the previous flight without the dams installed. Also you can see from the data that there doesn't seem to be any lag with the EGT during start up.
Prebaffles
https://photos.google.com/share/AF1...?key=bW41dmNWMWZrSUlsSGpsNmNWZmx2Y0RpSkVCOHVn
Thanks
It is winter in VT and my #1 and 2 cylinders have been running cold - during higher MAP-RPM no issue but while I reduce the throttle to idle for landing the front two cylinders cool much quicker then the other four - so i decided to install the baffles pieces that go directly in front of these cylinders - but that I don't use in the warmer months.
Today was my first flight with the baffles installed OAT ~15F while the CHTs were more stable - the EGTs for these two cylinders dropped more quickly when I pulled it back to ide - 1&2 were about 200F below the other four.
Fight of concer
https://photos.google.com/share/AF1...?key=bW41dmNWMWZrSUlsSGpsNmNWZmx2Y0RpSkVCOHVn
This didin't occur to the same degree on the previous flight without the dams installed. Also you can see from the data that there doesn't seem to be any lag with the EGT during start up.
Prebaffles
https://photos.google.com/share/AF1...?key=bW41dmNWMWZrSUlsSGpsNmNWZmx2Y0RpSkVCOHVn
Thanks