I've been to Dubai Many times.
I flew at El Ain airshow in 2007 with my unlimited race plane detuned with a stock DA-150.
I agree the heat and humidity 9 months of the year is something most people don't really understand until it is experienced!
Ray English would be the guy to contact as he is the one who went through my engine and "fixed it"
If anyone understands the timing on the thing he would be the one to contact.
Sparky