THere is absoulutley nothing you can do. Ive tried everything. Rads closed, rads open, full throttle, minium ata and U/pm to stay in flight... Everything!
THe only thing that seemed to work was diving hard at full throttle with the water rad wide open... But how long can you keep that up? 30 seconds?
I was thinking about it the other day, what about turning the engine off and on? Not very realistic though... and the water temp stil climbs with the engine off as the water pumps off.
Radiator = doom.