Dixit

iTrader: (1)

I know more than half of you are going to tell me I need to search but Ive read 100s of posts and cant figure out if I should install this Tstat or not.

Many people are saying that the LS6 engine is not meant to run 180s temp because of the alloy block. Others say thats a load of crap.

Now I read most who do have the 160 stat they are running about 180-190s in temp. Now I think I have a stock Tstat (since Im 2nd owner of Z06) and I reprogrammed my Fans and and I stay around 195-200 in stop and go traffic. On Hwy its about 196*. Not sure if I should bother installing this Hypertech 160* Thermostat or just sell it. I bought it over 6months ago, but still havent installed it.

Dixit

black01_WS6

iTrader: (13)

since you have it i would put it in, but usually just lowering the fan temps is enough.

ArcticZ28

iTrader: (14)

There is no use in installing it if you can't program the fans to come on at 160 as well. If you can, like you say you, then go ahead and install it. It is a very easy and straight forward install and you will run noticeably cooler. It def won't hurt anything.

black00TA

iTrader: (3)

agreed. if you ever run your car hard repeatedly or are in traffic it can do nothing but help keep your car at a more mellow temp.

as far as not using it because its an ls6, i can think of no reason why it wouldnt be more advantagious to run it on the ls6 considering its designed with more power than the ls1 which can only mean more heat.

so do it...

JLMoses

iTrader: (3)

if i had a programmer i would do this easy mod.....

z28nbr1fan

I replaced mine with a 160 like a month ago. And I didn't change any of the fan settings.

Runs cool(190 or so) even at stop with no a/c. I also noticed there is a lot less variance in temperature during dd.

I though it was well worth it.

.02

Dixit

iTrader: (1)

Guess I will put sticking it in then. I just read alot of threads on CorvetteForum where you got one half of people bitching about how the LSx engine is not meant to run that cool and blah blah blah.

I know I can lower the fan temps once I put it in, but I thought let me lower them with the stock one and its been working out quite well. So thats the main reason I held off putting on the 160 Tstat.

Lets say im on the dyno and my temps are running 175-180s, am I going to get better results or worse? Many say 220s is optimum temp for the LSx engine, but who knows what these guys smoke sometimes.

Dixit

ArcticZ28

iTrader: (14)

I have yet to see any real proof that the LSx's run better at 220 or 180 or anywhere in between. It's just a matter of common sense to me. If the engine runs cooler, it's less heat in the engine bay that gets sucked back up into the engine (not to mention the obvious benefits of the engine laster longer the cooler it runs). Yes it is a very very very minute temperature change and I'm not saying that you will gain any HP from it. It just seems to make more sense to me than letting a car run 20-30 degrees hotter.

8GTOKLR

iTrader: (6)

I have always been told you can never have enough cooling and brakes. Todays cars always have the minimum, anyways why would you run an all aluminum block at 240 degree with 11:1 compression hell with it lol take off the front spoiler too lol Also I was told that even with the 160 stat the motor will still be in the 180 to 190's which is seems good to me. These people in the vette forums are running bigger radiators I bet. Thats my opinion

skimms98

iTrader: (7)

Do it ! My car runs noticeably stronger for longer periods of time (running round robin passes at the strip) I generally only have to up my dial in by a tenth or so when I used to have to drop it 3 ! Everything the last two guys said also makes perfect sense to me. I think newer cars are run hotter for two reasons. 1. "supposedly" lower emissions and 2. so they'll wear out quicker and you have to buy another new car in less than 5 years !! It's a conspiracy !!!!!!

RedZoutlaw

Not stealing this thread but what is the stock Tstat in LSx cars? I was going to get a 180 degree stat just in case 160 was too low.

Dixit

iTrader: (1)

Guess I will throw it in there tonight, I just dont understand where some of these people get the info that running 180-190s is not good for an allow block and then they start bringing in the rings into the picture about how it wont seal well and cause more problems.

I just find that very very hard to believe that 30-40* drop in temp on alloy block is going to cause the rings to not seal as well as before and cause me more problems in the long run.

Dixit

ArcticZ28

iTrader: (14)

I believe it's 195, or something very close to that.

z28nbr1fan

I'll second that. Here is a reference: http://www.netherracing.com/cengine.html

USMC Devil Dog

There was a tech article in GMHTP on which to use. I thought it mentioned that the LT1 being an iron block would run much better with the 160* but when talking about the heat dissipation and the fact the LS1 is aluminum they recommended the 180*. And like what was said earlier if the fans aren't programed along with the new t stat the mod wouldn't make much of a change.

I'll check in the issues and find it. Don't want to pass along bad info if its not right.

BADSZ28

iTrader: (39)

So if I have a 160* stat, what should I set my fans at?

ArcticZ28

iTrader: (14)

You should set it for when the thermostat opens, in your case 160.

Dixit

iTrader: (1)

Actually you want to set it a few degrees after its fully open. 160* is when it starts to open, most say it goes full open around 173-176. I just changed it and just driving 55mph, it sits around 178, so Im going to set the first fan to come on at 188, turn off at 183, second fan on at 183, off at 188.

Dixit

BADSZ28

iTrader: (39)

That is close to where I set mine. Thanks.