Seems like snake oil. The best coolant is water.

 

Not 100% sure to be honest, only going off what he said, he said it's to minimize chances of rust? and he needed to.

In one ear out the other with me
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Yeah, the water/coolant wouldn't touch the liners. And besides, how has the world gotten on with Iron block/sleeves for so many years. a lot of methinks but nothing unusual.

Well, it isn't the best coolant. In terms of thermal conductivity and convenience, Mercury offers up a freezing point of -40ºC and boiling point of 350ºC. So in terms of a coolant it would work a lot better than water.

Still, you wouldn't get past the corrosion issue, it's heavy and pretty toxic, but it's still more effective.

I'm still more than happy to carry on putting water in my car mind

 

Steel liners don't make a difference, there are three (four) versions of this stuff, vintage, veteran & performance and the use depends on if you have a really old cast iron block and cast bits like pumps and bits of brass, more modern steel/iron mix with aluminium or performance where it's predominantly aluminium narrow journals and faster flow. The forth is as I said earlier for aircraft engines.

As a coolant its as good as water, but is a 100% corrosion inhibitor for life, as for the liners, the water content of ordinary coolant can boil when it's near a high temperature part like a liner, so you get bubbles of steam thus affecting cooling that’s thermal cavitation, this stuff has no water so none of it can boil or build pressure, a water pump at high speed can cause physical cavitation with water at high temperature, producing bubbles in the pump and reducing efficiency.

The lack of pressure will lengthen the life of hoses etc, but I'm sceptical as to the chemical effects on them.

Having seen this being used in aircraft engines, I can confirm it works as stated, if you feel the need to spend £200+ and have your car off the road for a week whilst the prep fluid sucks out the last of the water that’s up to you, personally I'd prefer to see it installed in cars during manufacture, I'm guessing that would only add around £30 to the cost of a new car (bulk purchase and all that) and would increase reliability.

Some of this I dragged from my aging brain cells, but at a glance you can get it from the web site. Snake oil, defiantly not, expensive substitute for water defiantly.

 

If it was soo amazing and reduced fuel burn etc like Evans claim why wouldn't the big car manufacturers be using it or some form of replicant liquid?


Just out of interest which aircraft type uses a water cooled engine? I'm guessing some sort of PFA reg'd with a newer diesel type engine? Outside of the standard trainer/taxi light aircraft I'm lost!

 

Cant remember the aircraft, but got me thinking Rotec or Rotax, did a bit of searching and came up with guess whos web site!

http://www.evanscooling.com/news/pre...craft-engines/

 

I spent £200 with these guys and was going to use it in my 300bhp zr turbo but now im going to hold off and put it in the s when I get one and fit a glass coolant pipe

 

Coolant would touch the liners if you have a wet lined engine.

Wwater has a specific heat capacity of 4200J/kg/C. Mercury is only 140J/kg/C. Even glycol used in antifreeze is only 2200J. Nothing beats water as a coolant.

Mercury would be a terrible coolant, even ignoring the fact the cooling system would weigh about 90kg if you used 7 litres of it.

 

Pwned !

 

Specific heat capacity isn't thermal conductivity. Mercury conducts heat far better than water, 15 times better. Yes, the weight is an issue, but I said that already. Anyway, the actual coolant is air, the fluid is simply moving the heat and that is where specific capacity does good, but since it has to interface with the block and the radiator, it's going to lose since it cant conduct that heat as well

As for the sleeves, the K20 isn't wet lined and there is no advantage in doing it, hence

 

It's not a standard K20 block. Might be using aftermarket wet lined sleeves, a la Darton sleeves with stroker kit?