Re: What "degree" Thermostat
[Re: hooziewhatsit]
#735108
06/28/10 01:38 PM
06/28/10 01:38 PM
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Joined: Nov 2003
Posts: 4,054 Mt Evelyn , Vic Australia
dartcharger
Virgin Fluff
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Virgin Fluff
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Posts: 4,054
Mt Evelyn , Vic Australia
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A lower temp thermostat is just a bandaid for overheating.
every motor is different and sometime's going hotter in the thermostat is the answer, ya just gotta try em all. There a cheap part and easy to change. It's hard to explain but sometime's having a thermostat that open's more often (195) will keep a motor at a more consistant tempreture and stop it from over heating.....Im not sure what the boiling point is in (F) but down here they say it's 120 (C) under presure.
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Re: What "degree" Thermostat
[Re: terzmo]
#735109
06/28/10 02:09 PM
06/28/10 02:09 PM
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Joined: Jan 2003
Posts: 32,972 Grand Prairie,Texas
stumpy
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The factories have dumped billions of dollars into engine research. Modern cars run around 200 degrees. They are more efficient and pollute less at those temps. They put much more time and money into it that I ever will by second guessing them while standing in my driveway.
I'll defer to the engineers.
YES...new cars run hotter. My silverado runs at a constant 210...it's designed that way. 60's cars were designed to run at lower temps. There were no smog pumps, or other rubbish back then. The engineers designed them, that way...back then..like comparing apples to oranges
195 is about 1/2-3/4 reading on our old gauges not any where near pegged out or over heating. If your gauge is pegged at 195 you have a bad gauge. The older engines are way more efficent at 190 then you think.Factory theromstats were that high to begin with.
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Re: What "degree" Thermostat
[Re: stumpy]
#735110
06/28/10 02:25 PM
06/28/10 02:25 PM
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Joined: Feb 2003
Posts: 10,232 Someplace you aren't
SomeCarGuy
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My car runs better at 190-200 than cooler. I run a 190 high flow. Never goes over 200, even idling in traffic for a long time. No shroud either.
I want my fair share
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Re: What "degree" Thermostat
[Re: stumpy]
#735111
06/28/10 03:23 PM
06/28/10 03:23 PM
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Joined: Mar 2005
Posts: 2,060 Pendleton NY
terzmo
top fuel
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top fuel
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Pendleton NY
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Quote:
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The factories have dumped billions of dollars into engine research. Modern cars run around 200 degrees. They are more efficient and pollute less at those temps. They put much more time and money into it that I ever will by second guessing them while standing in my driveway.
I'll defer to the engineers.
wrong...195 is at the high limit
YES...new cars run hotter. My silverado runs at a constant 210...it's designed that way. 60's cars were designed to run at lower temps. There were no smog pumps, or other rubbish back then. The engineers designed them, that way...back then..like comparing apples to oranges
195 is about 1/2-3/4 reading on our old gauges not any where near pegged out or over heating. If your gauge is pegged at 195 you have a bad gauge. The older engines are way more efficent at 190 then you think.Factory theromstats were that high to begin with.
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Re: What "degree" Thermostat
[Re: stumpy]
#735112
06/28/10 03:35 PM
06/28/10 03:35 PM
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Joined: Jan 2003
Posts: 5,444 Indiana
YO7_A66
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Indiana
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I have a 195 and the gage in my Challenger shows straight up at this temp.
1970 YO7 A66 [Canadian Export] F8 Challenger 340 (Currently in shop for stroker assy.)
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Re: What "degree" Thermostat
[Re: YO7_A66]
#735113
06/28/10 03:55 PM
06/28/10 03:55 PM
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Joined: Jan 2006
Posts: 736 Virginia
rm23j8g
super stock
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Virginia
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Quote:
I have a 195 and the gage in my Challenger shows straight up at this temp.
IIRC, the 195 thermostats began being used in most Chrysler engines in 1970. I have 195s in my '70 cars as well and the gauges also read almost dead center.
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Re: What "degree" Thermostat
[Re: stumpy]
#735116
06/28/10 06:12 PM
06/28/10 06:12 PM
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Joined: Feb 2005
Posts: 5,221 Branson, Mo.
joedust451
OP
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terzmo, before you post anymore inaccurate info on this subject I respectfully suggest you do some reasearch. Engines have been running 195 stats from the factory for a long time and 195 is not the high end of the heat range or the gauge for older engines. 215-220 is too hot not 195. BTW nice edit on the earlier post.
When i ran the 180*, my temps stayed at 185* max, so this proved that its keeping the coolant in the rad. longer to keep a steadier temp, with the 160* it keeps creaping up to 190/195*, i'll admit, i'm not running a shroud, i'm sure that'll help, but it did stay at a steadier & lower temp with the 180*. Back in the day, i've pulled several factory stats out of mopars that were stamped 192*, so it goes to show, they ran them on the warm side.
Last edited by joedust451; 06/28/10 06:22 PM.
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383man
[Re: 474218]
#735118
06/28/10 07:59 PM
06/28/10 07:59 PM
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Joined: Jan 2003
Posts: 27,421 Balt. Md
383man
Too Many Posts
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Balt. Md
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Most new modern engines run in the 200 to 220 range which is best for emissions but not performance. The manufactors did not build the cars for drag racing (most of them) they were built for low emissions and fuel milage and to be very efficent. But ask any drag racer what temp he likes his eng at when he leaves the starting line ?? I can tell you my 63 and all my cars that I have owned run the fastest running about 160 when I launch and then it is about 170 to 180 crossing the stripe but it can be hotter on real hot days. If the eng is to hot it wont fill the cylinders as much which can hurt performance. I prefer my eng to run about 180 on the street but I did not build it for fuel milage or emissions. Ron
Last edited by 383man; 06/28/10 08:01 PM.
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Re: 383man
[Re: 383man]
#735119
06/28/10 08:52 PM
06/28/10 08:52 PM
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Joined: Feb 2005
Posts: 5,221 Branson, Mo.
joedust451
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Quote:
Most new modern engines run in the 200 to 220 range which is best for emissions but not performance. The manufactors did not build the cars for drag racing (most of them) they were built for low emissions and fuel milage and to be very efficent. But ask any drag racer what temp he likes his eng at when he leaves the starting line ?? I can tell you my 63 and all my cars that I have owned run the fastest running about 160 when I launch and then it is about 170 to 180 crossing the stripe but it can be hotter on real hot days. If the eng is to hot it wont fill the cylinders as much which can hurt performance. I prefer my eng to run about 180 on the street but I did not build it for fuel milage or emissions. Ron
Ron, if you really think about it, its not so much with having a cooler head/block/cylinder temp as it is having a cooler intake/fuel charge going in , A 180* engine will have a "warmer" intake then an engine thats at 160*, so you then have a warmer intake charge, thus in a sence gives a slower ET & MPH, thats why guys would Ice down there intakes, then push them to the box, you then in a sence will show a cooler engine because the stat is in the intake, but the rest of the engine will still be on the warm side, the cooler intake charge is like racing in cooler air, it gives you the same affect, i personally never noticed a any real change from run too run "in COOL" air whether i was at 160-165* or 180*, now in the hot air, it might benifit cooling down the engine a bit, this will also cool down the intake charge, but iceing down is the best way in hotter air, of coarse thats getting harder to do now that they've been cracking down on that.
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Re: 383man
[Re: 383man]
#735120
06/28/10 08:58 PM
06/28/10 08:58 PM
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Joined: Sep 2007
Posts: 14,889 up yours
Supercuda
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I run as hot a thermostat as I can get. 195 is usually it, but sometimes I can find a 205 degree one.
Define efficient? Getting the most out of the least is one way. Be it mileage or power. Modern engines make as much NET HP as the muscle car era engines made GROSS, yet double the mileage. You still want to argue that cold engines are better for efficiency or power?
They say there are no such thing as a stupid question. They say there is always the exception that proves the rule. Don't be the exception.
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Re: 383man
[Re: Supercuda]
#735121
06/28/10 09:00 PM
06/28/10 09:00 PM
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Joined: Jan 2003
Posts: 3,623 Millinocket, Maine
JonC
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Quote:
I run as hot a thermostat as I can get. 195 is usually it, but sometimes I can find a 205 degree one.
Define efficient? Getting the most out of the least is one way. Be it mileage or power. Modern engines make as much NET HP as the muscle car era engines made GROSS, yet double the mileage. You still want to argue that cold engines are better for efficiency or power?
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Re: What "degree" Thermostat
[Re: 474218]
#735123
06/28/10 09:54 PM
06/28/10 09:54 PM
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Joined: Feb 2003
Posts: 10,232 Someplace you aren't
SomeCarGuy
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Quote:
It took about two seconds for me to open my 1969 Plymouth Service Manual to page 7-1.
Which reads that a 190 degree thermostat is used on all models except those equipped with the 170 ci slant six which uses a 200 degree thermostat.
It also says that a stuck thermostat causes a lean condition due to the cooler underhood temps.
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Re: What "degree" Thermostat
[Re: terzmo]
#735126
06/28/10 11:02 PM
06/28/10 11:02 PM
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Joined: Jan 2003
Posts: 32,972 Grand Prairie,Texas
stumpy
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Quote:
Dearest Stump...before You whack someone,invest some time in reading comprehension as I stated earlier that 195 was approaching the high end of the normal operating range. Run yours hot...I'll run at 180
Yes after you edited the post.
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