Re: thermostat

[ortfamily@xxxxxxx]

I like to keep the operating temperature of the engine at 175 to 190. Higher temperatures can cause knock, and the under-hood temperatures rise. Cooler air and fuel are more dense, so keeping the under-hood temperatures down is a plus. Higher under-hood temperatures also take a toll on the battery, hoses, belts, oil, and the paint on the hood, and will also affect your interior temperatures. The factory probably used a 195 as a compromise to sell in all climates, and likely used higher temperatures when they were first thinking about pollution. My cars seem to run better slightly cooler. With a 170 degree running temperature, I get adequate heat from the heater if the temp drops to freezing and I chose to drive it. If I get stuck in traffic on a hot day, no problems with overheating. Works for me, maybe something else will work for you. 

On October 4, 2004 Ian Cudmore wrote:

> well we dont have winter in victoria usualy... we have maybe 2 months where
> it drops below zero durring the night... never realy goes more then 5
> below... and thats all celsius so its not bad. a very mild winter for the
> great white north eh? but ok, you have changed your thermostats down to 160?
> how come? overheating in the summer? i dont need to worry about that realy.
> hardly ever breaks 30 on the island.
> 
> At what temperatures will the engine be most efficient? thats realy what i
> want to center on i guess. was there an enegeering reason behind 195? or was
> it just practical for most of NA or what?
> 
> i guess a 15 pound cap is pretty standard? i think i've seen higher pressure
> ones, they have like a pressure release valve on the cap right?  i would
> assume that wouldn't be a nessicary change since again i'm not overheating?
> 
> any suggestions? now i'm thinking 210 and maybe 225 are probably the way to
> go?
> 
> From: <ortfamily@xxxxxxx>
> To: mail@xxxxxxxxxxxx
> Subject: Re: was alt upgrade, now thermostat
> Sent: October 3, 2004 6:56:34 PM
> 
> Message-ID: <ADVANCES62S2TRqf69a0000005c@xxxxxxxxxxxxxxxxxxxxxxx> Water
> boils at 212F. A pressure cap adds 3 degrees per pound of pressure, thus a
> 16 pound cap will add 48F degrees and put boiling at 260F. Antifreeze has
> antiboiling additives, making it even more boil resistant. That said, I have
> noticed in original publications that 195F was the factory thermostat. I
> have
> two Ramblers, a six and an eight, which both run 15F above the thermostat.
> It is
> not a lying gauge, I tested the temperature with separate equipment.
> Therefore,
> I use a 160F thermostat and get a 175F running temperature. I do not drive
> them
> in the winter.
> 
> 
> On October 3, 2004 Jim B wrote:
> 
> >A: If you ran that low of a thermostat in the great white north, you
> >wouldn't have any heat in your car next month! <G> 195 is well below the
> >boiling point of 50/50 water/antifreeze mixed under 15lbs pressure. It
> >boils
> >closer to 230. Or if you like, in the parlance or weights and measures du
> >Canada, Celsius 115 (roughly) IIRC, Celsius is 0 at freezing (32F) and 100
> >at boiling (212F) and Centigrade was 0 at freezing and 100 at 200F. (been a
> >long time since Science class in BC @1975)
> >
> >
> >From: "Ian Cudmore" <yahootoo@xxxxxxxxxxx>
> >To: mail@xxxxxxxxxxxx
> >Subject: was alt upgrade, now thermostat
> >Date: Sat, 02 Oct 2004 15:23:09 -0700
> >Message-ID: <BAY22-F40kNsjUHQHh20000c10c@xxxxxxxxxxx>
> >
> >    195 degree's is what the thermostat is in most amc's? i thought i'd
> >heard
> >of people upgrading to 180 degree thermostats? doesn't water boil at about
> >210 degree's? dont mind me i'm from canada and centigade degree's make more
> >sence to me i was thinking somewhere around 150 and 165 or 170 would be my
> >
> >numbers but am i way off here?
> 
> _________________________________________________________________
> Take charge with a pop-up guard built on patented Microsoft® SmartScreen
> Technology.
> http://join.msn.com/?pgmarket=en-ca&page=byoa/prem&xAPID=1994&DI=1034&SU=http://hotmail.com/enca&HL=Market_MSNIS_Taglines
>   Start enjoying all the benefits of MSN® Premium right now and get the
> first two months FREE*.
> 
> 
> 
> 
> .


=============================================================
Posted by wixList Archiver -- http://www.amxfiles.com/wixlist


.