I agree !!! From a racing background using aluminum heads and even blocks--we always tried to run the car as cool as possible---
We would warm the oil with a heater before the 1st race and then the rest of the day try to cool it down !!!
Speaking to a GM tech. He said that it's all about emmisions
I was concerned that maybe it had something to do with the Direct Injection why they run these engine at 220* ----And I was asuured that was NOT the case----
New cars today will last forever in maintained properly---GM is in the business of SELLING cars---If they never broke down and no one bought new cars they will go out of business----So running them hot is about the only thing they can do to shorten their life as well as all the underhood components life by extreme heat----THEN simply blame it on the EPA and smog police !!!! IMHO

 

Oh the conspiracy theories abound. You really believe the stuff you post?? I assume you also believe the planes that hit the tower were government planes and the entire act was not really committed by terrorists? Perhaps you also believe that the Boston Marathon bombings never really happened..

 

There was a thread somewhere that pointed out the 220 marked on the analog guage really isn't 220 and that the temp on the DIC is correct (my analog also shows 220 most of the time but the DIC shows anywhere from 206 to 210 depending on conditions/traffic and so on...)

 

If there is no annunciation light for engine temperature, don't stress.

 

Not necessary. The fans will kick on if the engine gets too hot.

Michael

 

I know....

 

I have some bad news for you. Running hotter means less fuel washing lubricant off the cylinder walls, so the engine lasts even longer. If you want your engine to have a shorter life, run it cold.

Michael

 

i run around 209-215; oil on average 8-10 degrees lower. havent seen 220, but its only a few degrees. re: other comments, if you can cool it down it makes sense to do it, intuitively, higher temp=more wear, shorter life. simple mechanics. remember that your coolant is mostly alcohol, which has higher boiling point, so dont be too upset at beating 212 (Fahrenheit. if your above 210 centigrade, youre probably not here to talk about it.)

 

Mine stays right around 220 regardless do the outside temp. A bit warmer than my C6 ran but very steady.

 

The gauge is misleading. The mark the needle points closest to is 210*. The next highest mark is 220. Count the marks.

 

if you count the marks above that area also you will see the gauge is not linear.

 

You are just being stupid now---You can have your own opinion but don't insult my intelligence or my opinion----If you wanna act like a child go over to the wannabe LS1 TECH website
Welcome to America I am entitlted to my own opinion--and it is based on a 40 year carrer in racing as a crew chief and as a diver in Nascar and drag racing cars and boats NHRA/IHBA------Where we don't even run Thermostats---even in endurance racing--500 Miles---running too cold ?? never even spoken about---Too HOT is always the only issue
A corvette is basically a race car with a license plate---People are allowed to draw there own conclusions from whomever they choose
Someone with 40 years experience in real racing--- or a Forum member with no real history--just mislead opinions----
Not only that I am on my 8th new Corvette and have driven over a million miles in them----Ist mod always exhaust---2nd mod always thermostat---I have never had an engine failure in any Corvette
Sorry I had to vent---This should be a forum where we can express our own opinions and share information----and NOT be told we are stupid----
PS: If GM didn't want corvette racers to mess with the ECT then why do they allow them to set the fans in the STOCK tune to come on as early as 192*
and with a PATCH as early as 180 ?? because they don't want a bad rap among real racers with overheated engine----Win on Sunday--sell on Monday-----

 

We're in the middle of having a custom radiator built with a shroud & dual fans. After that we're planning on a lower stat & tuning to operate at that lower setting. how much lower? dunno... maybe around 190*F but we will see, anything 200*+ is getting too hot & metals begin to fatique faster. Everything under the hood would last longer if the temps were brought down even by 20*F, not to mention that extra buffer you have in case something does go wrong. This is just my opinion...

Wormwood

 

I have always run w/ lower temp stats in my vettes without problems...seems like the engines always run stronger and smoother (especially in hotter climates).

 

I put a 160 deg. stat in my C6 and had the fans reprogrammed to kick on sooner. The car ran great but when we moved down here the fans coming on all the time was annoying. Right now I don't think I'll do anything to my C7. It goes up to 220 and stays there. Drove it already 300 plus miles on a 90 degree plus day and when I got home and pulled into the garage...the fans came on. As well they should have.

 

Read the earlier posts and you will see that the needle is pointing to what appears to be 220° but in reality is the 210° hash mark. Then if you go to the Tour display/info, you can find the digital read-out showing somewhere near 210°. The scale changes over in that area, so it can be confusing.

 

There is no alcohol in your coolant.

Some of the replies in this thread are hilarious.

 

Well technically ethylene glycol (primary ingredient of Dex Cool and most modern "permanent" antifreeze) IS an alcohol. It is far different from Methanol (aka methyl alcohol) used in older varieties of antifreeze.

What do they have in common??? Well besides both being in the class of compounds known as alcohol you DON"T want to drink either, both are quite toxic.

 

I agree !!!! talking about coolant being toxic----Who cares we aren't talking about a dex-cool cocktail !!! we're talking about engine running temps-----and by the way--the old green anti freeze was toxic as it caused your kidneys to fail and may pets died from lapping up coolant overflows---However due to new Fed. laws the NEW Dex-Cool is NON toxic to life--so drink away !!!!!

 

You might want to check the MSDS before drinking Dex Cool... It is definitely still toxic to man and beast.

http://complyplus.grainger.com/grain...d=3078178#sec3