Water as coolant?
#21
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Just for clairity sake...The coolant has NOTHING to do with the wp bearings. Once the coolant/antifreeze-water get to the wp bearings there done for. It also means the seal is leaking and your loosing coolant. MABYE its better for lubing the wp SEAL but I think you will never be able to tell if the seal failed from using straight water or failed from something else. I saw the bearings mentioned at least 2 times and wanted to keep bad info from spreading.
#22
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If your radiator cap is rated for 15 PSI...
14.7 is about 1 bar so assume 1 bar
At one bar of pressure water could vaporize as low as 212 and we have to assume that unless you know the total volume.
If we assume the radiator cap can handle 1.5 bar or 22.05 PSI then the min temp for steam has only increased to 248 degrees F!
That was using table values that would guarantee all steam.
If I wanted to use the Saturation temp I would say that a partial steam mixture could form at as little as 232 at 1.5 bar and 211.34 at 1 bar.
Personally, I am sold on that it could happen. I looked that up in a Thermo table BTW.
14.7 is about 1 bar so assume 1 bar
At one bar of pressure water could vaporize as low as 212 and we have to assume that unless you know the total volume.
If we assume the radiator cap can handle 1.5 bar or 22.05 PSI then the min temp for steam has only increased to 248 degrees F!
That was using table values that would guarantee all steam.
If I wanted to use the Saturation temp I would say that a partial steam mixture could form at as little as 232 at 1.5 bar and 211.34 at 1 bar.
Personally, I am sold on that it could happen. I looked that up in a Thermo table BTW.
#23
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Originally Posted by 2002_Z28_Six_Speed
If your radiator cap is rated for 15 PSI...
14.7 is about 1 bar so assume 1 bar
At one bar of pressure water could vaporize as low as 212 and we have to assume that unless you know the total volume.
14.7 is about 1 bar so assume 1 bar
At one bar of pressure water could vaporize as low as 212 and we have to assume that unless you know the total volume.
![Winky](https://ls1tech.com/forums/images/smilies/LS1Tech/gr_wink.gif)
![Winky](https://ls1tech.com/forums/images/smilies/LS1Tech/gr_wink.gif)
That being said yes a 50/50 coolant/water mix will raise the BP to about 265F. Again Im not recommeding anyone run pure H2O permanently, it can cause deposits without the coolant. Though it does have better thermal transfer characteristics.
Did I mention Dexcool sucks! I'll never let it stay in my cars. I use the universal from O'reillys.
Last edited by cantdrv65; 05-22-2006 at 01:18 AM.