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Author
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Topic: How hot is too hot water temp?
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sprcoop
Gearhead Posts: 780
From: Tucson, AZ usa
Registered: Jan 2000
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posted 04-22-2006 07:31 PM
 
I know that new cars run hotter but how hot should a 66' get before I get concerned? I have new 4 row HD radiator, Ford 6 blade fan about 1 1/2" from the radiator, with clutch, fan shroud, a mechanical temp gauge, 160 thermostat, 16lb radiator cap. I'm sure the AC condenser in front doesn't help. Cool mornings, runs at 160. Driving around in 90 degrees 190. Stuck in traffic 90 degrees 200. When should the "oops too hot" alarm go off in my head? Thanks.
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Mark Ugrich
Gearhead Posts: 351
From: Waukesha, Wisconsin,U.S.A.
Registered: Jan 2006
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posted 04-22-2006 07:43 PM
I'd say 240's gettin' there, 260's overheating.
Since you're in AZ. running just water with a coolant corrosion additve would be my first choice. Anti-freeze doesn't help cool an engine, only protect the water from freezing.Water does a much better job of heat transfer.
Adding a water wetter chemical like royal purple's(Alex)should help too. 
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sprcoop
Gearhead Posts: 780
From: Tucson, AZ usa
Registered: Jan 2000
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posted 04-22-2006 08:00 PM
Mark, I have to apologize as I had set out to question your claim that anti-freeze was an inferior coolant to water. I couldn't believe they would sell a product that actually cooled worse than plain water. I was wrong, you are right. http://www.jcna.com/library/tech/tech0011.html It looks like water will boil faster but if it cools that much better it may never get to that point. You would think they could come up with something that would be a component protectant and freeze resistant that would cool as well as water. I guess not. Alex? Royal Purple got a water wetter?
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Mark Ugrich
Gearhead Posts: 351
From: Waukesha, Wisconsin,U.S.A.
Registered: Jan 2006
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posted 04-22-2006 08:16 PM
Jerry, As far as I know nothing cools better than plain old water.
Royal Purple does have a coolant additve, but I'm not sure what they call it.If Alex sees this I'm certain he'll enlighten us both.  Btw no apology needed. [This message has been edited by Mark Ugrich (edited 04-22-2006).]
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Fastymz
Moderator Posts: 22791
From: Reno Nv M&M #1240
Registered: Apr 2001
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posted 04-22-2006 08:20 PM
Yeah it's Purple Ice I have yet to try it. I've used water wetter with just water with good results.------------------
oddly obsessed with big scoops on little Mustangs HOOD HACKERS DELIGHT!
My Pics
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sprcoop
Gearhead Posts: 780
From: Tucson, AZ usa
Registered: Jan 2000
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posted 04-22-2006 09:23 PM
Scoop, I guess that means that water wetter has corrosion protection built in? I don't have a huge fear of having a freeze problem here in AZ. It does get into the teens once in a while but Ethel stays in the garage. The rest of the pack have to sleep in the cold.
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DidgeyTrucker
Gearhead Posts: 1813
From: Greenbrier, TN USA
Registered: Oct 99
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posted 04-23-2006 01:01 AM
"Water wetters" explained.Water has a surface tension that acts somewhat like an insulation. Even though water is next to the iron in the engine block, there is a thin layer of insulation in the surface tension. The "water wetter" reduces the surface tension and therefore reduces the insulation so the heat transfer is greater. This also works in reverse in the radiator. An example of water surface tension: Get a glass of water and fill it to the top. You can carefully fill it ABOVE the top of the glasss! That's the surface tension holding the water together. Once you have the water actually above the top of the glass, drop one drop of dishwashing liquid on the water. Dishwashing liquid will reduce the surface tension and the water level will drop to the level of the glass. Tracy
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Fastymz
Moderator Posts: 22791
From: Reno Nv M&M #1240
Registered: Apr 2001
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posted 04-23-2006 01:12 PM
quote:
Originally posted by sprcoop:
Scoop, I guess that means that water wetter has corrosion protection built in? I don't have a huge fear of having a freeze problem here in AZ. It does get into the teens once in a while but Ethel stays in the garage. The rest of the pack have to sleep in the cold.
I should add to my last post,that I found that a 30% antifreeze to water with a bottle of water wetter worked just as good. But offered better protection agaist freezing. My 65 never see's anything below 40 degree's outside. ------------------
oddly obsessed with big scoops on little Mustangs HOOD HACKERS DELIGHT!
My Pics
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Jake11
Gearhead Posts: 246
From: Banning,Ca,USA
Registered: Oct 2005
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posted 04-23-2006 05:03 PM
Fabric softener works good. The dishsoap
will make too much suds. Don't ask how I
know. Don't let it get over 240. 210 is ok
if that's what ya got. Try to ck the temp
in the radiator with a meat thermometer
while its running to make sure your
guage is right.
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sprcoop
Gearhead Posts: 780
From: Tucson, AZ usa
Registered: Jan 2000
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posted 04-23-2006 05:11 PM
I will have to check the accuracy of my mechanical water temp. This motor has only seen over 200 after I have turned it off. If it is at 200 at 90 I suspect 225 is a real possibility at 115. I will only have to wait about a month to find out. Thanks.
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sprcoop
Gearhead Posts: 780
From: Tucson, AZ usa
Registered: Jan 2000
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posted 04-28-2006 02:14 AM
Ron, I did pick up some Purple Ice when I got my Royal Purple Synthetic oil. It does mention on the bottle that 25 to 30% antifreeze with water is the recommended combo for best performance. I'll let you know how it works out at 115 degrees stuck in traffic with the A/C on. Wish me luck.
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Ryan Wilke
Gearhead Posts: 3237
From: Stanton, Michigan, zip 48888
Registered: Oct 2000
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posted 04-28-2006 09:27 AM
quote:
Originally posted by sprcoop:
You would think they could come up with something that would be a component protectant and freeze resistant that would cool as well as water. I guess not.
There are heat transfer fluids available that are not water mixtures. They do a better job and are commonly used in many industrial settings, however, they aren't nearly as cheap as water mixtures........ Ryan
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66 fastback
Gearhead Posts: 223
From: Califon, NJ 07830
Registered: Oct 2003
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posted 04-28-2006 10:39 AM
There is this stuff that claims to be the best coolant available, no water used at all. http://www.evanscooling.com/index2.html
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Ryan Wilke
Gearhead Posts: 3237
From: Stanton, Michigan, zip 48888
Registered: Oct 2000
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posted 05-03-2006 09:14 AM
A friend of mine uses the Evans stuff in his FE-powered '69FB race car. He really likes it! However, I'm too sure if our local track would be very happy if they found out he was using it. The track officials ask that all trailered cars DON'T run ANY antifreeze. Although a catch can is required, I suspect their reasoning is due to the problems associated with trying to clean it off the track if you blow a hose, radiator, water pump, etc. Does anyone elses home track "request" that "no anti-freeze" be used in trailered racers? Ryan [This message has been edited by Ryan Wilke (edited 05-03-2006).]
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