What thermostat do you use????
Race Director
Joined: Jul 2005
Posts: 11,308
Likes: 1
From: The Beautiful Greater Bay Area California
Originally Posted by 1965imp
160-then have someone reset your fans to come on a little earlier. You may see an honest 10-15 degree difference in your temps.
Hypertech Thermostat. Don't forget to reset the fans to benefit by this mod. 
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5th Gear
Joined: Jul 2006
Posts: 5
Likes: 0
Originally Posted by rgtkst
stk replacement. keeps it the right temp!!!!
Melting Slicks
Joined: Feb 2004
Posts: 2,819
Likes: 1
From: Toledo Ohio
CI 6-7-8-9 Veteran
St. Jude Donor '07
If your stock leave it alone. A cooler TS will not lower the high end temps. If your stock and want to mess with anything-have your fans reprogrammed to come on earlier.
Melting Slicks
Joined: Jul 2005
Posts: 2,572
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From: Rehoboth MA . . . NRA Life Member
St. Jude Donor '06-'07
I did a search for you and you might want to try these 2 links. They cover about every question you might have...
http://forums.corvetteforum.com/show...ght=160+Degree
http://forums.corvetteforum.com/show....php?t=1364594
http://forums.corvetteforum.com/show...ght=160+Degree
http://forums.corvetteforum.com/show....php?t=1364594
Safety Car
Joined: Jan 2005
Posts: 3,675
Likes: 58
From: Hayward (Bay Area) CA
Wowww.. Those 2 links sure provided a lot of info.... it was more like a world war III, but any how... quite informative. I think, I'd be happy with a 180* stat, and lower the fan setting a little. That way, I play safe, in the middle..
Tech Contributor
Joined: Oct 1999
Posts: 41,058
Likes: 9,821
From: Charlotte, NC (formerly Endicott, NY)
I run my car on the track and still have the 195 in it. A low temp thermostat isn't going to keep a car cooler unless you are not pushing it. Once it is pushed the temperature of the cooling system is set by the cooling capacity of the radiator not the thermostat. With a stock radiator and half hour of wide open throttle operation in 90 degree heat the coolant temp will be right at 230. Doesn't matter whether there is a thermostat or not the temp will be the same.
Bill
Bill
Safety Car
Joined: Jul 2005
Posts: 3,572
Likes: 9
From: Jackson Tn
St. Jude Donor '06-'07-'08-'09
I have a 160 stat and my fans were reset when I had my pcm tuned. My car heats up just as fast as before and the temp stays around 185 all the time. It's a known fact that the LS1 produces the max power at this temp.
Melting Slicks
Joined: Jul 2005
Posts: 2,572
Likes: 3
From: Rehoboth MA . . . NRA Life Member
St. Jude Donor '06-'07
Originally Posted by Vette_Fan
Wowww.. Those 2 links sure provided a lot of info.... it was more like a world war III, but any how... quite informative. I think, I'd be happy with a 180* stat, and lower the fan setting a little. That way, I play safe, in the middle..
When reading them I had to try filtering out the pissing contest and try to focus more on the technical aspect of the posts, if that's possible. 
I wonder if just setting the fans to come on at a lower temperature without even changing the thermostat would accomplish our goal of running a bit cooler?
Personally, if my Z06 stayed at 190 degrees during the summer I'd be more than satisfied. Irregardless of some opinions I don't think temps that run upward of 230 degrees are good for these engines at all. My 1999 Dodge Dakota has a 190 degree thermostat and it stays right there even during the summer months with the A/C on. There's no reason these Vette's can't do the same.
Melting Slicks
Joined: Jul 2005
Posts: 2,572
Likes: 3
From: Rehoboth MA . . . NRA Life Member
St. Jude Donor '06-'07
Originally Posted by Vette_Fan
I think I'm gonna stay with OEM stat, but lower the fan setting a little. How does that sound ? SAFE ? 
Bob
Safety Car
Joined: Jul 2005
Posts: 3,572
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From: Jackson Tn
St. Jude Donor '06-'07-'08-'09
Originally Posted by BobbyG
I was thinking the same thing and mentioned it in my last post. I just don't have the equipment or the know-how to reset fans to come on at 200 degrees or so.
Bob
Bob
