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[C2] Evans Coolant

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Old Nov 18, 2019 | 07:27 PM
  #21  
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Attached below is the JohnZ article on C2 cooling systems.
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BeatinTheHeatRestorerArticle.pdf (523.4 KB, 296 views)
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Old Nov 18, 2019 | 07:42 PM
  #22  
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Originally Posted by Powershift
Evans Coolant contains no water, so specific heat (heat capacity) is less than 50/50 AF currently in use. So heat transferred via radiator should be less at the same engine temperature.

Larry

EDIT: https://www.evanscoolant.com/how-it-...rless-coolant/
Interesting. I note that the Evans site even admits that use of this coolant "may lead to slightly higher coolant gauge temperatures (by 10 to 20 degrees)." Now, if one is concerned for high coolant temps, I'm confounded why 10-20F higher would solve that concern.
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Old Nov 18, 2019 | 07:56 PM
  #23  
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Originally Posted by Powershift
Evans Coolant contains no water, so specific heat (heat capacity) is less than 50/50 AF currently in use. So heat transferred via radiator should be less at the same engine temperature.

Larry

EDIT: https://www.evanscoolant.com/how-it-...rless-coolant/
Made me look it up.

Evans (per their self-provided on-line spec sheet): 2633 J/Kg-K

Water: 4182 J/Kg-C

Since C=K degree per degree, only -273 IIRC, that difference is meaningless.

So water is approximately has about 1.6 times the heat capacity of Evans.

Somebody tell me why Evans is better for anything? Lower vapor pressure so that you can overheat your engine worse with no cooling system puking?

Note that Evans coolant also does not support nucleate boiling, which is a good thing for heat transfer coefficient.

Sounds like a money-making snake oil for the under informed to me.
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Old Nov 18, 2019 | 08:12 PM
  #24  
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I would check into the flash point on that stuff. I think it's like 240. I have run it in a race car and caught on fire from a small leak (pressurized, not dripping).

Obviously ethylene glycol has a flash point as well, but at a 50/50 mix I believe it is over 280 degrees.

Before all of the users of this product jump on me, I'm not trying to say there's a greater propensity for fire because of the coolant, I'm merely stating that the flash point is lower.

If I were you, I would look into the suggestions about improving your system.

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Old Nov 18, 2019 | 08:16 PM
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Or, just accept the fact that 210 is fine and drive on.

Steve
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Old Nov 18, 2019 | 08:28 PM
  #26  
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Originally Posted by Easy Rhino
Made me look it up.

Evans (per their self-provided on-line spec sheet): 2633 J/Kg-K

Water: 4182 J/Kg-C

Since C=K degree per degree, only -273 IIRC, that difference is meaningless.

So water is approximately has about 1.6 times the heat capacity of Evans.

Somebody tell me why Evans is better for anything? Lower vapor pressure so that you can overheat your engine worse with no cooling system puking?

Note that Evans coolant also does not support nucleate boiling, which is a good thing for heat transfer coefficient.

Sounds like a money-making snake oil for the under informed to me.
isn't easier to clean up on the track
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