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Author Topic: Waterless coolant  (Read 3432 times)

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Offline Lemon-Ade

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Waterless coolant
« on: May 11, 2013, 23:02:29 PM »
Anyone have an opinion on it, good bad ugly lol ?

http://www.evanscoolants.co.uk/power-cool-180-for-performance-cars.html

Cheers Ade  ;D



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Offline T4T

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Re: Waterless coolant
« Reply #1 on: May 11, 2013, 23:27:41 PM »
Thinking about using this stuff myself mate .
Haven't heard any horror stories and if it does what it says on the "tin" can only be good .

Next step up from water wetters .

Matt

Offline Lemon-Ade

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Re: Waterless coolant
« Reply #2 on: May 11, 2013, 23:32:54 PM »
It's here at a cheaper price to ATM

http://www.merlinmotorsport.co.uk/p19726/EVANS-POWER-COOL-180°-WATERLESS-COOLANT-(5-Litres)/product_info.html

New engines don't need the prep fluid either Matt, its a win for us  ;)


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Offline T4T

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Re: Waterless coolant
« Reply #3 on: May 11, 2013, 23:40:49 PM »
 :lol:

I put brake fluid in the car for the first time in ten years this morning .

That's the prep fluid for mine . ;D

 :mellow:


Offline Lemon-Ade

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Re: Waterless coolant
« Reply #4 on: May 12, 2013, 16:10:55 PM »
Lol,  I looked up it says the capacity for a boa / bob is 9.5 litres.

Hope mine doesn't go over 10 litres with the turbos, pipe work and turbo cooler rad. I think the Granada rad is taller than the cos yb one, and hopefully the heater matrix is smaller in a sierra too. I think its gonna be close....

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Offline T4T

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Re: Waterless coolant
« Reply #5 on: May 12, 2013, 19:23:23 PM »
Hadn't researched this stuff yet as I'm not at that stage of the build .

Done a bit of reading today - not much mind - and think I don't like the sound of this stuff .

Engines run hotter because of lower specific heat capacity than water .

Water wetter may still be better option ??

Matt




Offline capri v8 driver

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Re: Waterless coolant
« Reply #6 on: May 12, 2013, 19:33:50 PM »
Waterless-coolant is nothing new. Its used in aircrafts for many years.

But do you need it in a car? No.

Water with anti fries or coolant does its job and is a lot cheaper. Water wetter could be a beter option.
greetz Paul.

Capri V8 Driver.

Offline Lemon-Ade

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Re: Waterless coolant
« Reply #7 on: May 12, 2013, 19:55:01 PM »
Found this

Here's a mean tech article I ran accorss that made up my mind and worked to prove alot of things I had read:
http://www.jcna.com/library/tech/tech0011.html

Evans coolant is 100% propylene glycol...no water added. Cool thing is it doesn't boil until 360F. Thats great when you think about localized boiling around the cylinders causing hotspots with conventional...with Evans there's no way you're going to get hotspots in the combustion chamber that can possibly cause knock. Bad thing is propylene glycol's specific heat isn't all that great. That effectively makes your radiator act like its smaller than it really is. That also means that when your engine makes a fixed amount of heat the Evans coolant temps will rise more than water will. That's all fine and dandy when you remember that it won't boil until 360F...it has plenty of overhead. The bad thing is the fans run more often than they should since the stock computer thinks you're getting hotter than you should be. The other bad thing is your oil temps go up from the extra heat in the block so you need a nice big oil cooler to manage things. Granted Mobil 1 says its good for 400F but I know most road racers shut things down at 300F. Other negatives to the Evans coolant are the cost and the large expansion rate range of the fluid with temperature swings.

Plain water with Water Wetter (or a similar surfactant like purple ice or stay cool) keeps temps the lowest. Problem with it is a boiling and freezing protection. Water wetter doesn't do anything significant to the boiling or freezing point of plain water. The best protection for boil over is adding conventional antifreeze but that will increase your actual coolant temps. If you want to increase the boiling point while avoiding antifreeze you need to crank the system pressure as high as possible. The highest pressure cap I could find is the TRD at 1.5 kg/cm2 (21.75 psi) which will raise the boiling point to 262-263F. Of course with the high pressure comes the chance of busting hoses. Water Wetter does contain corrosion inhibitors but they don't hold up for too long. Redline reccomends replenishing or replacing the Water Wetter every 15,000 miles.
http://www.redlineoil.com/redlineoil/wwti.htm

Of interest is this computer water cooling review of Water Wetter:
http://www.bunkermentality.net/wetter.html
The guy tested different concentrations of Water Wetter and more than the reccomended amount actually hurt the heat transfer abilities of the coolant. That means for the size of our cooling system we want to use somewhere between 6.6 and 8.7 oz of Water Wetter...no more and no less. You won't even need a whole 12 oz bottle if you want it to work at max capacity.

So don't use to much water wetter.

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