CFM56 EGT variation
Why does the CFM56-5C as fitted to the A340 run normal cruise EGT's around 700 degrees C, where the -5A/B will run similar N1 speeds but EGT's around 100-130 degrees C lower? I know that on the CFM56 the EGT is technically the ITT, but I was just pondering the difference. Is it due to the increased thrust rating?
Also, does EGT vary according to altitude at similar N1 speeds?
What is the maximum EGT you would see at TOGA thrust under normal circumstances on both the -5C and -5A/B? I know what the -5C limits are (950C redline and 725C when starting)