AndyRV7
Well Known Member
My RV-7 has a carb, with CHT and EGT information for each cylinder, in the panel. I learned to fly it using the Skyhawk method of pulling the lever until the engine runs rough and then pushing the lever back a certain distance. It has worked as well in the RV as it did in the Skyhawk, however much that is...
I've never relied on the EGT because they vary by 100-200 degrees maybe. My cylinder head temps are spread over a smaller range though and I never have a need to climb-out much hotter than 380 degrees (maybe 400 degrees in a short climb on a 90 degree day). Typically my cruise temps are below 350 on the hottest summer days, maybe lower.
If I remember correctly, the problem (or one of the problems) with high CHT's is the pressure inside the cylinder. So every time I lean for cruise and look down and see 320 or so on the CHT's I always wondered if I was wasting fuel and could lean further while watching the CHT's for a more accurate but safe level of leaning.
Any thoughts??
Thanks! Andy
PS. I'm talking about leaning on the ROP side of things.
I've never relied on the EGT because they vary by 100-200 degrees maybe. My cylinder head temps are spread over a smaller range though and I never have a need to climb-out much hotter than 380 degrees (maybe 400 degrees in a short climb on a 90 degree day). Typically my cruise temps are below 350 on the hottest summer days, maybe lower.
If I remember correctly, the problem (or one of the problems) with high CHT's is the pressure inside the cylinder. So every time I lean for cruise and look down and see 320 or so on the CHT's I always wondered if I was wasting fuel and could lean further while watching the CHT's for a more accurate but safe level of leaning.
Any thoughts??
Thanks! Andy
PS. I'm talking about leaning on the ROP side of things.