And one thing should be useful : sound warning when temp needle goes away from 12o`clock position, constant beeping when temp needle touches line after 12oclock position etc. Something like beeping or long beep which depends on temperature.
I think that with this feature, most of engines which were blown should be still alive.
I`ll speak with my friend about it. If its possible to install sensor into engine bay and make warning system based on cooling temp.