C3 Tech/Performance V8 Technical Info, Internal Engine, External Engine, Basic Tech and Maintenance for the C3 Corvette
Sponsored by:
Sponsored by:

Too cool?

Thread Tools
 
Search this Thread
 
Old May 24, 2005 | 09:15 PM
  #1  
SkunkApe's Avatar
SkunkApe
Thread Starter
Drifting
 
Joined: Apr 2005
Posts: 1,323
Likes: 3
From: I KNOW JESUS... HE'S MY GARDENER
Default Too cool?

Just installed a hi-flo aluminum water pump, 16" elec. fan and an aluminum radiator. While apart, I also installed a Milodon hi-flo 180 t-stat.

Idling (in hot FLA sun), car reaches 170 (I'm using a quality manual-sender & guage).

Does this mean my t-stat isn't opening? Is this considered a "problem"?
Reply
Old May 24, 2005 | 09:55 PM
  #2  
bobs77vet's Avatar
bobs77vet
Race Director
20 Year Member
Conversation Starter
All Eyes On Me
Liked
 
Joined: Sep 2004
Posts: 11,874
Likes: 263
From: Arlington Va Current ride 04 vert, previous vettes: 69 vert, 77 resto mod
Default

Originally Posted by SkunkApe
Just installed a hi-flo aluminum water pump, 16" elec. fan and an aluminum radiator. While apart, I also installed a Milodon hi-flo 180 t-stat.

Idling (in hot FLA sun), car reaches 170 (I'm using a quality manual-sender & guage).

Does this mean my t-stat isn't opening? Is this considered a "problem"?

if anything it means the thermostat isn't closing ...or the guage is wrong ....or the thermo stat is calibrated wrong...
Reply
Old May 24, 2005 | 09:56 PM
  #3  
BigBlockk's Avatar
BigBlockk
Drifting
15 Year Member
 
Joined: Sep 2004
Posts: 1,959
Likes: 1
From: North Bend Ohio
Default

A cool running engine will tend to collect moisture in the crankcase. This can combine with unburned gasoline to form acidic compounds. Thermostats were developed to raise engine temperature quickly to prevent this. If this car were mine I would put a 195 degree 'stat in it. The engine will rid itself of moisture better and run more efficiently.

BigBlockk

Later.....
Reply
Old May 24, 2005 | 10:07 PM
  #4  
SkunkApe's Avatar
SkunkApe
Thread Starter
Drifting
 
Joined: Apr 2005
Posts: 1,323
Likes: 3
From: I KNOW JESUS... HE'S MY GARDENER
Default

Originally Posted by BigBlockk
If this car were mine I would put a 195 degree 'stat in it. The engine will rid itself of moisture better and run more efficiently.
Yes, I've heard of the condensation issue.

But...if the temp never reaches 195, will the t-stat ever open? I don't think my 180 t-stat is opening as the temp doesn't get above 170.
Reply
Old May 24, 2005 | 10:16 PM
  #5  
aharte's Avatar
aharte
Drifting
15 Year Member
 
Joined: Feb 2002
Posts: 1,906
Likes: 0
From: Berlin
Default

There is no way that your engine would remain at a stable temperature with the thermostat completely closed. Your thermostat certainly is opening (at least partially) at 170 (or whatever your gauge claims is 170).
Reply
Old May 24, 2005 | 10:16 PM
  #6  
LIQUIDDRAGON's Avatar
LIQUIDDRAGON
Melting Slicks
 
Joined: Aug 2004
Posts: 2,063
Likes: 1
From: Beverly Massachusetts
Default

Originally Posted by SkunkApe
Yes, I've heard of the condensation issue.

But...if the temp never reaches 195, will the t-stat ever open? I don't think my 180 t-stat is opening as the temp doesn't get above 170.
it sounds like your t-stat is opening at 170. if the t-stat never opened the car would over heat sense the colant in the engine wouldnt be making it back to the radiator to cool off. and like the others have said i would go with a 195 t-stat so that the engine could run at a more efficient temp.
Reply
Old May 24, 2005 | 10:27 PM
  #7  
SkunkApe's Avatar
SkunkApe
Thread Starter
Drifting
 
Joined: Apr 2005
Posts: 1,323
Likes: 3
From: I KNOW JESUS... HE'S MY GARDENER
Default

OK. I understand now. There could be a 10 degree "margin of error". If the car is staying at a "stable" temp, that indicates water is flowing thru the rad (via the open t-stat).

Thanks.
Reply
Old May 24, 2005 | 10:38 PM
  #8  
LIQUIDDRAGON's Avatar
LIQUIDDRAGON
Melting Slicks
 
Joined: Aug 2004
Posts: 2,063
Likes: 1
From: Beverly Massachusetts
Default

Originally Posted by SkunkApe
OK. I understand now. There could be a 10 degree "margin of error". If the car is staying at a "stable" temp, that indicates water is flowing thru the rad (via the open t-stat).

Thanks.
if its staying right at 170 then your cooling system is working perfectly with the t-stat working at 170 and not the advertised 180 so if i was you i would go get a 195 tstat. if the t-stat was stuck open then i you would see a temp of closer to 150-160 but i could be wrong but i dont think you would see 170. as long as your cooling system is working perfect it will hold the temp that the t-stat is set to.
Reply
Corvette Stories

The Best of Corvette for Corvette Enthusiasts

story-0

150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

 Joe Kucinski
story-1

8 Coolest Corvette Pace Cars (and Replicas) of All Time

 Verdad Gallardo
story-2

Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)

 Joe Kucinski
story-3

Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!

 Verdad Gallardo
story-4

Top 10 Corvettes Coming to Mecum Indy 2026!

 Brett Foote
story-5

Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!

 Michael S. Palmer
story-6

10 Revolutionary 'Corvette Firsts' Most People Don't Know

 Joe Kucinski
story-7

5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2

 Michael S. Palmer
story-8

2027 Corvette vs The World: Every C8 vs Its Closest Competitor

 Joe Kucinski
story-9

10 Most Common Corvette Problems of the Last 20 Years!

 Joe Kucinski
Old May 24, 2005 | 10:43 PM
  #9  
LIQUIDDRAGON's Avatar
LIQUIDDRAGON
Melting Slicks
 
Joined: Aug 2004
Posts: 2,063
Likes: 1
From: Beverly Massachusetts
Default

just had another thought. t-stats work off of heat and dont just open fully and close fully as it hits a desired temp so i was thinking that because your system is so efficient that what might be happening is that once the temp gets to 170 the t-stat is just starting to open and letting just enough coolent to flow through and not reaching the full 180 so you arnt getting that big coolant rush and bigger temp drop to fully close the t-stat so you might have a slightly open slower coolant flow but as always i could be wrong.
Reply
Old May 24, 2005 | 11:10 PM
  #10  
VETDRMS's Avatar
VETDRMS
Melting Slicks
10 Year Member
 
Joined: Dec 2001
Posts: 2,025
Likes: 1
From: Billings MT
Default

LiquidDragon: You would be surprised at how fast the t-stat's open when they hit their temperature, and I have found by boiling them in water with a temperature gauge that the good ones are quite accurate and start opening within 1-2F of the advertised number.

Reply
Old May 25, 2005 | 08:40 AM
  #11  
CGGorman's Avatar
CGGorman
Team Owner
 
Joined: Jun 2004
Posts: 20,216
Likes: 4
From: Smile, it's just the internet.
Default

Of course, you were using a calibrated thermometer, distilled water, and conducting the test at sea level...right?
Reply
Old May 25, 2005 | 11:37 AM
  #12  
VETDRMS's Avatar
VETDRMS
Melting Slicks
10 Year Member
 
Joined: Dec 2001
Posts: 2,025
Likes: 1
From: Billings MT
Default

CGGorman: I just got this reply in my email, but it is not here:

Of course, you were using a calibrated thermometer, distilled water, and conducting the test at sea level...right?
I will assume that was directed at me. And yes as a matter of fact it just so happens that I have a mineshaft that is 3500' deep where I have a laboratory to test thermastats...

give me a break. :rollseyes:
Reply
Old May 25, 2005 | 11:59 AM
  #13  
rihwoods's Avatar
rihwoods
Race Director
10 Year Member
 
Joined: Feb 2005
Posts: 16,100
Likes: 17
Default

Originally Posted by SkunkApe
Yes, I've heard of the condensation issue.

But...if the temp never reaches 195, will the t-stat ever open? I don't think my 180 t-stat is opening as the temp doesn't get above 170.
Feel your upper radiator hose and tell us what it feels like,before/after warm up......

edit:never mind...you got it now...

Last edited by rihwoods; May 25, 2005 at 12:03 PM.
Reply
Old May 25, 2005 | 03:35 PM
  #14  
69schemers's Avatar
69schemers
Instructor
20 Year Member
 
Joined: Apr 2002
Posts: 229
Likes: 3
From: Highland MI
Default

It does not matter. Get rid of the 180 deg. and buy a 195. you will be better off.
Reply
Old May 25, 2005 | 04:08 PM
  #15  
CGGorman's Avatar
CGGorman
Team Owner
 
Joined: Jun 2004
Posts: 20,216
Likes: 4
From: Smile, it's just the internet.
Default

Originally Posted by VETDRMS
CGGorman: I just got this reply in my email, but it is not here:



I will assume that was directed at me. And yes as a matter of fact it just so happens that I have a mineshaft that is 3500' deep where I have a laboratory to test thermastats...

give me a break. :rollseyes:
I occured to me after I typed that reply that we weren't determining boiling point. Temp is temp. My only point was that 1-2* is too close to call with home equipment.

Good call on the mine shaft. I keep my wine in mine.
Reply
Old May 25, 2005 | 04:25 PM
  #16  
mooneyd's Avatar
mooneyd
Drifting
 
Joined: May 2004
Posts: 1,442
Likes: 2
From: Flanders NJ
Default

Alot of people misunderstand the purpose of the tstat. It regulates the minimun temp. of the coolant not the max. temp. It stays closed till the coolant reaches the temp. it is set for then opens. After that the coolant can run at 250 degrees or what ever, but if it goes below the set temp. the tstat will close till it comes back up to temp.
Putting in a 160 degree tstat will not stop the coolant temp from going over 160 degrees.
Reply
Old May 25, 2005 | 09:45 PM
  #17  
chris75stingray's Avatar
chris75stingray
Burning Brakes
15 Year Member
 
Joined: Feb 2005
Posts: 1,235
Likes: 0
From: Mesa AZ
Default

wow, this is the first time i have ever heard about a car running too cool.
Reply

Get notified of new replies

To Too cool?

Old May 25, 2005 | 09:48 PM
  #18  
SkunkApe's Avatar
SkunkApe
Thread Starter
Drifting
 
Joined: Apr 2005
Posts: 1,323
Likes: 3
From: I KNOW JESUS... HE'S MY GARDENER
Default

Originally Posted by chris75stingray
wow, this is the first time i have ever heard about a car running too cool.
I was quite surprised. For years I've been running at 200+/- (and always driving with one eye on the temp gauge). Now, with the new water pump, elec. fan and radiator, I'm worried about running too cool...
Reply
Old May 25, 2005 | 10:28 PM
  #19  
petronix's Avatar
petronix
Instructor
15 Year Member
 
Joined: Dec 2004
Posts: 228
Likes: 3
From: Tampa FL
Default

Mine runs steady at 160, according to the guage. I asked the person I bought it from and he said that he installed a 160 thermostat (not sure why). Car has 72 L48 with a 327/350 cam and stock cooling system (new radiator). I think I may install the 195, as suggested here.
Reply
Old May 26, 2005 | 08:43 AM
  #20  
MotorHead's Avatar
MotorHead
Race Director
25 Year Member
Liked
Loved
Community Favorite
 
Joined: Apr 2000
Posts: 17,672
Likes: 199
From: Who says "Nothing is impossible" ? I've been doing nothing for years.
Default

WHat motor do you have ? You might be the only C3 owner that has a properly workng cooling system or your temp gauge is inacurate
Reply



All times are GMT -4. The time now is 08:23 AM.

story-0
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

Slideshow: From C1 to C8 we compare every Corvette generation by the numbers.

By Joe Kucinski | 2026-05-12 16:54:12


VIEW MORE
story-1
8 Coolest Corvette Pace Cars (and Replicas) of All Time

Slideshow: Some Corvette pace cars became collectible legends, while others perfectly captured the look and attitude of their era.

By Verdad Gallardo | 2026-05-11 09:50:51


VIEW MORE
story-2
Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)

Slideshow: Ranking the top 10 Corvette engines by torque output.

By Joe Kucinski | 2026-05-05 11:58:09


VIEW MORE
story-3
Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!

Slideshow: A Corvette pace car nearly matching IndyCar speeds sounds exaggerated, until you look at the numbers.

By Verdad Gallardo | 2026-05-04 20:03:36


VIEW MORE
story-4
Top 10 Corvettes Coming to Mecum Indy 2026!

Among a rather large group of them.

By Brett Foote | 2026-05-04 13:56:44


VIEW MORE
story-5
Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!

Slideshow: the top 10 things Corvette owners want in the C9 Corvette

By Michael S. Palmer | 2026-04-30 12:41:15


VIEW MORE
story-6
10 Revolutionary 'Corvette Firsts' Most People Don't Know

Slideshow: 10 Important Corvette 'firsts' that every fan should know.

By Joe Kucinski | 2026-04-29 17:02:16


VIEW MORE
story-7
5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2

Slideshow: Should you buy a 2020-2026 Corvette or wait for 2027?

By Michael S. Palmer | 2026-04-22 10:08:58


VIEW MORE
story-8
2027 Corvette vs The World: Every C8 vs Its Closest Competitor

Slideshow: 2027 Corvette lineup vs the world.

By Joe Kucinski | 2026-04-24 16:12:42


VIEW MORE
story-9
10 Most Common Corvette Problems of the Last 20 Years!

Slideshow: 10 major Corvette problems from the last 20 years.

By Joe Kucinski | 2026-04-14 16:37:05


VIEW MORE