Evans Waterless coolant
#42
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Evans:
$44/gallon
375*f boiling point
3% water
Peak Long Life:
$15/gallon
349*f boiling point
4% water
Both are toxic and will kill you and your kitty. One is reasonably priced, the other includes a massive markup to pay for BigChin(tm) advertising. If you really think it's OK to run an engine well above safe operating temperatures, save yourself $30/gallon and run Peak Long Life at full strength. Your engine will self destruct long before it boils.
http://images.peakauto.com/Peak%20Lo...v%20052013.pdf
http://www.rx7club.com/attachments/3...ev-2-11-03-doc
If that doesn't work go here
All you wanted to know about Evans NPG+ (MSDS)!! - RX7Club.com
Your thermal transfer properties will be ****, but the important thing is your coolant won't boil until well after the engine blows up. Go read some posts by our resident 1st place racers and see what they run. Hint: Their water content equals Peak's ethylene glycol content. Because
#45
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Here's one article that discusses an Evans test on the dyno, reducing detonation:
Successful Big Block Engine Buildup - Hot Rod Magazine
Successful Big Block Engine Buildup - Hot Rod Magazine
Last edited by JasonC SBB; 10-16-2013 at 12:26 PM.
#46
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Skimmed through it and it seems like some good info toward this debate. No-Rosion Products Technical Questions and Answers
After proper conversion to the Evans products, the average temperature of engine cylinder heads increased by 115-140oF,
Evanscooling - Bob Is The Oil Guy
#47
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Evans is about 2/3rds ethylene glycol. Sierra antifreeze is propylene glycol. You could blend Peak and Sierra to get the same ratio of propylene and ethylene glycol.
However, Evans claim they have some proprietary additives.. so your DIY blend may not be the same <shrug>.
However, Evans claim they have some proprietary additives.. so your DIY blend may not be the same <shrug>.
#51
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There is at least 2% water in Evans as per their MSDS. Actual amount is not specified but it's listed above the 2% additive package and therefore has more of it.
If the engine is 10% hotter than normal, is the oil also 10% hotter?
What causes a head to warp? Overall temperature or localized hot spots from boiled coolant? My google-fu has failed me.
Of course I did discount every claim they make when seeing the "more info" link point back to their main page. Marketing != tech info
If the engine is 10% hotter than normal, is the oil also 10% hotter?
What causes a head to warp? Overall temperature or localized hot spots from boiled coolant? My google-fu has failed me.
Of course I did discount every claim they make when seeing the "more info" link point back to their main page. Marketing != tech info
#52
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With water or 50/50 EG/water, when the cylinder head reaches a certain temperature (way above the boiling point), the boiling on the surface is so bad an insulating layer of steam forms. At this point the cylinder head temperature will begin to rise very quickly leading to bad hostpots and detonation. Evans' claim to fame is that the boiling temperature is so high that this doesn't happen until a much higher average engine/coolant temperature.
Last edited by JasonC SBB; 10-16-2013 at 06:35 PM.
#53
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There is at least 2% water in Evans as per their MSDS. Actual amount is not specified but it's listed above the 2% additive package and therefore has more of it.
If the engine is 10% hotter than normal, is the oil also 10% hotter?
What causes a head to warp? Overall temperature or localized hot spots from boiled coolant? My google-fu has failed me.
Of course I did discount every claim they make when seeing the "more info" link point back to their main page. Marketing != tech info
If the engine is 10% hotter than normal, is the oil also 10% hotter?
What causes a head to warp? Overall temperature or localized hot spots from boiled coolant? My google-fu has failed me.
Of course I did discount every claim they make when seeing the "more info" link point back to their main page. Marketing != tech info
#59
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I'm just gonna leave this here...
REVIVE!
I was at a meet this past weekend and this guy with some weird charge piping was talking about waterless coolant as I observed his car had no overflow tank. Did anyone end up trying this? If the engine is run a bit hotter, what does this mean for the thermostat that's in the car?
I was at a meet this past weekend and this guy with some weird charge piping was talking about waterless coolant as I observed his car had no overflow tank. Did anyone end up trying this? If the engine is run a bit hotter, what does this mean for the thermostat that's in the car?
#60
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I've just wasted8 minutes of my life to this guy ramble about his interaction with a name on the internet. Where the hell is the next video explaining why all of this is rubbish? Maybe this is what you meant to post:
I don't have time to watch this right now, but in any event, I'm fine with my distilled+water wetter for now. I was just curious what the collective knowledge base had to say if there was real world experience.