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73Delta88
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Posted: Sun Oct 28, 2007 11:57 pm |
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Joined: Sun Jun 08, 2003 12:28 am Posts: 1020 Images: 14 Location: Western Massachusetts
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I'm just curious, why do you drill a thermostat? I've never done it, and never had a problem.
I'm guessing so air will escape faster and you won't have to wait till the engine comes up to operating temperature to completely fill the system when initially filling it.... which only takes 5 minutes anyway
I can't imagine it would have any cooling effect under normal conditions. or does it?
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andrewk
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Posted: Mon Oct 29, 2007 8:08 am |
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Joined: Wed May 18, 2005 5:42 pm Posts: 1297 Images: 2 Location: Ames, IA
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This is a placebo-
Simplest way I can say this: None of this is even remotely true.
A 180 degree thermostat opens when it reaches 180 degrees. Your coolant temps in the engine won't be north of 250, they will be 180-185.
Your heads are not going to be cracked from the "sudden change" of coolant temp. If it were a problem, GM would have discovered in during their R&D, and if they hadn't it would be a wide spread problem, as 60 percent of this country has a cold winter.
Go ahead and do it if it makes you feel better, but you would be better off buying beer with that 11 bucks... JMO
Andrew
_________________ Andrew
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Mark Twain wrote: A man's character may be learned from the adjectives which he habitually uses in conversation.
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73Delta88
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Posted: Mon Oct 29, 2007 9:52 am |
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Joined: Sun Jun 08, 2003 12:28 am Posts: 1020 Images: 14 Location: Western Massachusetts
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andrewk wrote: A 180 degree thermostat opens when it reaches 180 degrees. Your coolant temps in the engine won't be north of 250, they will be 180-185.
And I would think there is some "gray area" for the thermostat being completely open or closed, it doesn't suddenly just snap all the way open once the temperature gets to 180 degrees and snap all the way closed once it gets down to 179
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88 Coupe
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Posted: Wed Oct 31, 2007 1:38 am |
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Joined: Sun Feb 15, 2004 3:25 am Posts: 3196 Images: 10 Location: Southern California
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destineal wrote: ........ what size hole? 1/16? 1/8? Depends who is passing out the advice. From the following: http://www.oldsconnection.com/forum/vie ... 0563#1056388 Coupe wrote: Hans wrote: ........ drilled is not a bad thing to do either, do 2 1/16th diam holes as well .......... Please explain. He was unable to. destineal wrote: ........ I guess the obvious reason is to keep your car cooler therefore controlling KR ........ Do you have a KR problem? destineal wrote: ........ the holes only reduce overall engine temps by about 5 degrees ........ Maybe someone can tell us how a couple of ⅛" holes could cause any reduction, at all. destineal wrote: ........ While at the track you open the hood, maybe ice the charger and let the motor cool down between runs ........ Do you do this on the street, while waiting for the light to change? destineal wrote: ........ With the coolant and engine cooled down there is no coolant circulating until the engine temps reach the temp of the Thermostat ........ Not true. Seems the author is not aware of the bypass system that is already designed into the cooling system. destineal wrote: ........ - Andy H Duluth, MN 1999 Grand Prix GTP 02/16/2004
Who is this guy, and what are his credentials?
Norm
_________________ Harry S. Truman wrote: When you have an efficient government, you have a dictatorship.
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88 Coupe
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Posted: Wed Oct 31, 2007 2:06 am |
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Joined: Sun Feb 15, 2004 3:25 am Posts: 3196 Images: 10 Location: Southern California
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73Delta88 wrote: ........ I'm guessing so air will escape faster ........ Exactly. Stats for some applications, come with holes for that purpose. 73Delta88 wrote: ........ it doesn't suddenly just snap all the way open .......
It should be fully open, at its rated temp, and partially close if the temp drops below it. The idea is to maintain that temp. No more, no less.
Norm
_________________ Harry S. Truman wrote: When you have an efficient government, you have a dictatorship.
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88 Coupe
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Posted: Wed Oct 31, 2007 3:08 am |
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Joined: Sun Feb 15, 2004 3:25 am Posts: 3196 Images: 10 Location: Southern California
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destineal wrote: well its got a hole in it now. Didn't know what size to do so i chose 3/32 Beer would have been a better investment, but your hole won't hurt a thing. Using a 180° stat in place of a 195° would be a different subject. OldsGuy wrote: All Oldsmobile V8's that I know of have the "bypass" function ........
All liquid cooled engines (including his V6) that use thermostats have the same (or a similar) feature. Some do it externally, some do it internally.
Norm
_________________ Harry S. Truman wrote: When you have an efficient government, you have a dictatorship.
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destineal
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Posted: Thu Nov 01, 2007 2:31 pm |
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Joined: Sat Sep 08, 2007 9:06 am Posts: 90 Images: 22
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88 Coupe wrote: destineal wrote: well its got a hole in it now. Didn't know what size to do so i chose 3/32 Beer would have been a better investment, but your hole won't hurt a thing. Using a 180° stat in place of a 195° would be a different subject. Norm
Not a big beer fan but I did manage to get a 180* tstat. jus gotta install it.
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