Evans Waterless Cooling - thoughts?
07-17-15, 12:10 PM
#26
Stu, I agree with Tim, a new stock radiator is all you need to keep cool in Sedona Arizona.
Living in Alaska for a significant period of time can warp one's perspective on the rest of the world.
Just ask Sarah Palin, she says she can see Russia from her backyard.
But the reality is, while the awesome beauty of Sedona Arizona may make you think you've moved to another planet, the climate there is pretty much normal.
About like it is here in NE Georgia and over in South Carolina, where Tim lives. Just a bit dryer and not any hotter. Check it out:
https://en.wikipedia.org/wiki/Sedona,_Arizona#Climate
And Stu, us Red Necks like to push our cars, up and down mountains and on hot summer days (just ask Tim). And we all do just fine with our stock radiators.
In fact, you should save yourself some cash and go down to the Walmart and get some Prestone.
Leave that Evans waterless hype for worrywarts with too much money.
Just my two bits.....
And congrats on finally getting your 10 Rotor!
Living in Alaska for a significant period of time can warp one's perspective on the rest of the world.
Just ask Sarah Palin, she says she can see Russia from her backyard.
But the reality is, while the awesome beauty of Sedona Arizona may make you think you've moved to another planet, the climate there is pretty much normal.
About like it is here in NE Georgia and over in South Carolina, where Tim lives. Just a bit dryer and not any hotter. Check it out:
https://en.wikipedia.org/wiki/Sedona,_Arizona#Climate
And Stu, us Red Necks like to push our cars, up and down mountains and on hot summer days (just ask Tim). And we all do just fine with our stock radiators.
In fact, you should save yourself some cash and go down to the Walmart and get some Prestone.
Leave that Evans waterless hype for worrywarts with too much money.
Just my two bits.....
And congrats on finally getting your 10 Rotor!
Last edited by ray green; 07-17-15 at 12:23 PM.
07-17-15, 12:33 PM
#27
I use it in my FD with stock thermostat and water pump, Aluminum Rad. Track days, drag racing, autox, hot humid daily driving, never a problem.
However, you could just use EG or PG coolant at full strength or mix them. NPG+ is aproximately 70/30 EG/PG mix according to their MSDS.
However, you could just use EG or PG coolant at full strength or mix them. NPG+ is aproximately 70/30 EG/PG mix according to their MSDS.
07-18-15, 03:45 AM
#28
Stu, I agree with Tim, a new stock radiator is all you need to keep cool in Sedona Arizona.
Living in Alaska for a significant period of time can warp one's perspective on the rest of the world.
Just ask Sarah Palin, she says she can see Russia from her backyard.
But the reality is, while the awesome beauty of Sedona Arizona may make you think you've moved to another planet, the climate there is pretty much normal.
About like it is here in NE Georgia and over in South Carolina, where Tim lives. Just a bit dryer and not any hotter. Check it out:
https://en.wikipedia.org/wiki/Sedona,_Arizona#Climate
And Stu, us Red Necks like to push our cars, up and down mountains and on hot summer days (just ask Tim). And we all do just fine with our stock radiators.
In fact, you should save yourself some cash and go down to the Walmart and get some Prestone.
Leave that Evans waterless hype for worrywarts with too much money.
Just my two bits.....
And congrats on finally getting your 10 Rotor!
Living in Alaska for a significant period of time can warp one's perspective on the rest of the world.
Just ask Sarah Palin, she says she can see Russia from her backyard.
But the reality is, while the awesome beauty of Sedona Arizona may make you think you've moved to another planet, the climate there is pretty much normal.
About like it is here in NE Georgia and over in South Carolina, where Tim lives. Just a bit dryer and not any hotter. Check it out:
https://en.wikipedia.org/wiki/Sedona,_Arizona#Climate
And Stu, us Red Necks like to push our cars, up and down mountains and on hot summer days (just ask Tim). And we all do just fine with our stock radiators.
In fact, you should save yourself some cash and go down to the Walmart and get some Prestone.
Leave that Evans waterless hype for worrywarts with too much money.
Just my two bits.....
And congrats on finally getting your 10 Rotor!
Thanks Ray-
and for the pic of Cathedral Rock! A fav hang out on visits. We arrive there Tues (10 day visit) to 99F forecast and a planned early morning hike to that very Rock. (I know, cool compared to Phoenix at 108F). Juh-HEE-zuz-uh! Yes my whole perspective on Actual Heat is certainly a bit skewd, (-40F winters will do that) I freely admit! Even the "cooler" Sedona/desert version.
Thing is this guys, after 35 yrs I think the original rad has done its duty, so it seems smart to replace it, and once I'm on that road then the price diff btw 2-core vs 3? And swapping out my now $29/gal Mercedes coolant for $45/gal Evans, I'm out another…$50? And in theory never have to change it again. I am seeing this whole upgrade as adding maybe $150 to the total, which amortizes nicely for the next decade-ish. And, not to beat a horse here, but a LOT of appeal for me with the low-pressure cooling the Evans allows on my vintage OE 12A. And heck, if I get desperate enough to try _summer_ driving (besides maybe at nite), I might figure out how to re-install the AC system I have sitting in boxes in the Man Shed (™)!
OK - I _am_ a worry-wort it seems! (could argue the too-much-$ part tho).
As to pushing yer cars up and down mountains? Well boys, we have sled dogs for that here….
Thanks to all for your thoughts and ideas.
Stu
80GS
Alaska (for a bit longer…)
07-18-15, 06:57 AM
#29
100 degree dry heat equals 90 degree humid heat. I lived in Tucson for a couple years during my college days and believe me, it's hotter hear in Georgia than in Tucson. And yes, I'll take Arizona or Georgia heat over Alaska ice any time.
As far as the advantages of a low pressure system on an old engine, I think you are in fact worryworting and this may not be a good thing.
The 12A was designed to operate with standard ethylene glycol coolant and it's respective pressures and temp curves. For all we know, that pressure helps keep the coolant seals properly seated and helps maintain the seals in the long run. Who knows what the situation would be with this Evans stuff, but I don't think you're going to find much data from folks who have been running it for 35 years without any trouble. But there are plenty of 35 year old examples using polyethylene glycol without any problems.
If, per chance, one of your coolant seals finally does give up the ghost, it's not a bad way for a 12A to die, since the leak will not cause damage to the engine innards like losing a hard seal. It would just be your old 12A's way of telling you it needs a little attention, time for a rebuild (and as I recall, you are sitting on a pair of factory fresh 12A rotor housings, right?)
Standard coolant does need to be refreshed every once in awhile, but not very often, maybe once every 5-10 years, depending on use. And changing out the coolant, along with a good radiator and system flush, is fun, easy and good for the system, since it flushes out any random debris that may have accumulated over the years.
Since you would probably be able to mix the ethylene glycol at more like 25% for those mild Arizona winters, a single $5.00 gallon of Prestone could very well last for the next 20 years. Another $150 for a brand spanking new stock radiator and you'll have more than adequate cooling, even out on the race track or going up Arizona mountains in the summer heat.
In other words, stop worryworting and get a nice new stock radiator and enough antifreeze for the next 20 years for the price of the Evan's Waterless Wonder What It Is? you'd need to buy instead.
As far as the advantages of a low pressure system on an old engine, I think you are in fact worryworting and this may not be a good thing.
The 12A was designed to operate with standard ethylene glycol coolant and it's respective pressures and temp curves. For all we know, that pressure helps keep the coolant seals properly seated and helps maintain the seals in the long run. Who knows what the situation would be with this Evans stuff, but I don't think you're going to find much data from folks who have been running it for 35 years without any trouble. But there are plenty of 35 year old examples using polyethylene glycol without any problems.
If, per chance, one of your coolant seals finally does give up the ghost, it's not a bad way for a 12A to die, since the leak will not cause damage to the engine innards like losing a hard seal. It would just be your old 12A's way of telling you it needs a little attention, time for a rebuild (and as I recall, you are sitting on a pair of factory fresh 12A rotor housings, right?)
Standard coolant does need to be refreshed every once in awhile, but not very often, maybe once every 5-10 years, depending on use. And changing out the coolant, along with a good radiator and system flush, is fun, easy and good for the system, since it flushes out any random debris that may have accumulated over the years.
Since you would probably be able to mix the ethylene glycol at more like 25% for those mild Arizona winters, a single $5.00 gallon of Prestone could very well last for the next 20 years. Another $150 for a brand spanking new stock radiator and you'll have more than adequate cooling, even out on the race track or going up Arizona mountains in the summer heat.
In other words, stop worryworting and get a nice new stock radiator and enough antifreeze for the next 20 years for the price of the Evan's Waterless Wonder What It Is? you'd need to buy instead.
Last edited by ray green; 07-18-15 at 07:03 AM.
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