Holm86 wrote:What fluids are allowed? Could you create cooling pump just like in a fridge??
Will have to check the regulations on that one, however, technically saying a cooling pump is not true. How fridges work is they compress a fluid (coolant), this causes the temperature to rise above the ambient air temp. Then the fluid is run through a heat exchanger (radiator) which transfers heat into the air. The fluid pressure is the brought back down so the temp decreases further. The net result is that the final temp is lower than the starting temp. This is the basic concept anyway.
In engineering terms this is possible however it would be fairly complicated, weigh a fair bit and draw a fair amount of power causing the alternator to have to put more load on the engine.
In regulatory terms I am really not sure. I think I remember reading somewhere in the regs that the only cooling fluid allowed is water however I may be completely wrong on that point.