correcting the facts around here..
a good gas turbine engines does not produce EGT more than 930 degree C .
if u get more than that, its time to overhaul the engine.
the standard max limit EGT for all internal combustion engines (this include gas turbine/piston/diesel etc) is around 950. If u get more than that, it means there is something wrong with yr engines (fueling/air/worn parts etc)