vh-foobar
One point that is interesting from the graph in figure 8 though is that for a given EGT when ROP the valve temperature is hotter than LOP.
i.e. at say 1400 degrees LOP results in valve temp of 1200 degrees and 1400 degrees ROP results in a valve temp 1300 degrees. i.e about 100 degrees hotter.
Yes, but that set of runs was at 93% of the audible knock limit for each mixture setting and so the power was being varied. 1400LOP was an imep of about 170psi which is only 75% (!) of the 226psi they achieved at 1400ROP. Apologies but I cropped the imep curve out when I uploaded the image as I was only trying to show the EGT/valve temp curves.