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Discussion Starter #1
I need your opinions please.... I know that the engineers at GM designed the Corvette engines to handle the 230+ degree F temperature. But, to me, that is too hot. I'd like to lower the temperature by using one of the many products outhere for my Z. Such as, VHP (VINCI) CONSTANT MONITOR FAN CONTROLLER and a lower temp thermostat. The second product I saw was the Xtreme LS-1/LS-6 Water Coolant Kit, this one seems a little bit better in a way that the temp. sensor is built in to the therm. housing. The only thing about it is, it comes with a 172 degree therm. and the fan would turned on at 185-190 degree.

Does anybody have one of these products installed on your Zs? What is the recommended operating temperature on the LS6? Here in TX, it could get over 100 degree in the summer for several days. The temperature could climb quickly in the Z as you sit in traffic for about a minute. The fans doesn't kick on until about 230+. I need to keep this baby cool.

thanks
 

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On 2001-06-14 19:25, ddle spewed forth this drivel:
I need your opinions please.... I know that the engineers at GM designed the Corvette engines to handle the 230+ degree F temperature. But, to me, that is too hot. I'd like to lower the temperature by using one of the many products outhere for my Z. Such as, VHP (VINCI) CONSTANT MONITOR FAN CONTROLLER and a lower temp thermostat. The second product I saw was the Xtreme LS-1/LS-6 Water Coolant Kit, this one seems a little bit better in a way that the temp. sensor is built in to the therm. housing. The only thing about it is, it comes with a 172 degree therm. and the fan would turned on at 185-190 degree.

Does anybody have one of these products installed on your Zs? What is the recommended operating temperature on the LS6? Here in TX, it could get over 100 degree in the summer for several days. The temperature could climb quickly in the Z as you sit in traffic for about a minute. The fans doesn't kick on until about 230+. I need to keep this baby cool.
&&&& The $39.95 Hayden fan switch sold at PEP BOYS and most other large auto stores works great
thanks

 

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When you keep it cool, you reduce the efficiency and the life of the engine. The temperature of the engine varies depending upon where you measure it, but the normal operating temperature where it is measured by the DIC appears to be 195' F.

How did you determine that the temperature which GM engineers decided to set the thermostat at was too hot, a gut feel, or some type of scientific evidence?
 

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Discussion Starter #5

On 2001-06-15 00:38, SMFCPACFP spewed forth this drivel:

How did you determine that the temperature which GM engineers decided to set the thermostat at was too hot, a gut feel, or some type of scientific evidence?

SMFCPACFP,

It was mostly gut feelings and some logics. I have not seen any engines operated in this temperature range, except the Vettes. 194 degrees is good, but they wait until it gets 230+ to turn on the fan. Most of the time you are in stop'n'go traffic, your engine is operating at around 220 all the time, so the fan won't kick on. I think this is too hot for anything including everything in the engine compartment. I know GM probably do this to prolong the life of the fans. But, I think I rather spend an extra $100 for a new set of fans to prolong the life of my engine. I had couple cases where my spark plug wires melted on my 92 LT1. I installed the Hypertech chip and the 160 therm. Never have a problem for the past 5 years.

We had another post here in the forum from one of the member that his wires were melted on his Z. I don't know is it because the engine is too hot or the wires were sitting on the engine (in this case, anything would melt). A hot engine is not good for the head either. Especially, for all the electronic components. I just feel that operating in the 180-195 degree is a good range (for sparks, fuel burn, efficiency...etc), but would want the fans to turn on a little bit sooner. What do you think?

I can go on and on for another few pages about the reason that I want to keep the Vette a little cooler, but it may bore a lot of members. Your opinions are greatly appriciated. Keep them coming please......
 

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My engine regularly gets in the 220-230 degree range. I live in the Santa Cruz mountains, and whenever I'm going up the mountain, I'll hit 230 or even higher. During a hard hill climb I recorded 242.
 

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I had my computer regrogrammed for the fans to turn on sooner, as well as adding a 180 stat, on 90 degree days my car runs between 190 - 205 degrees. That works well in the area that I live in.
 

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Discussion Starter #8
C5David,

Boy, that's awfully hot. I heard all kinds of weird noise(tranny, valvetrain, tappings... I don't know, someone even said it was the fuel injectors) when my engine got that hot. Sounded like Carl got the operating temp. that I'm looking for. But, I'm cheap, so I'll go with the $39.95 switch solution and the 180 degree therm. The $500 powerloader is too much for me, rather spend that on the Donaldson or the Vortex.

Thanks Carl, thanks everybody....

Keep that Z cool, summer is here.....
 
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