normal coolant temp?

[white ZL1]

Originally Posted by DarthZL1

This man speaks gospel. Listen to him.
Unless you change when the fans come on (tune) the lower temp TSTAT will do little more than make it enter closed loop slower (maybe).

The car will enter closed loop as low as 95* coolant temp. Thermostat has absolutely NO effect on when you enter closed loop.

[DarthZL1]

Originally Posted by white ZL1

The car will enter closed loop as low as 95* coolant temp. Thermostat has absolutely NO effect on when you enter closed loop.

If that's the case that's awesome. And thus why I said MAYBE. That is a lower temp than the vehicles I've done tunes for, but it's been a while.

So... assuming that is correct, without a tune a lower thermostat does nothing. Okay not nothing, but is best realized with lower fan settings

[joes407]

Does the RX require a tune modification? Also I would be interested in getting that link to your thread if you can supply it...



http://www.camaro5.com/forums/showthread.php?t=239613
no tune required it just keeps your iats down enough to not have heatsoak pull timing

[danvillekidd]

Originally Posted by jessrayo

I have never boiled engine coolant out of my car and I been out on the road racing course at 106 degrees ambient with the coolant over 220. If it can't keep up it will first shut down the a/c system and then it will put you in reduced power mode. Mind you when I got to this point I already had oil temps around 320 and had boiled off most of my supercharger coolant. If you go to reduced power mode from water temp you just limp the car into the pits and turn the key off for 5 minutes and it will run normal after the computer resets in 5 minutes. It will stay about 200 to 210 for a long time before it starts to light up the warnings. Don't worry about it, the car has a very good engine water cooling system.

So does the message of shutting down the a/c always come up even if you are not running the a/c? I was out yesterday in temps between 90 and 105, and kept getting that message. Was also seeing oil temps nearing 280, since it is my dd I left the track and let it cool down as soon as I got the a/c off message.

[jessrayo]

Originally Posted by danvillekidd

So does the message of shutting down the a/c always come up even if you are not running the a/c? I was out yesterday in temps between 90 and 105, and kept getting that message. Was also seeing oil temps nearing 280, since it is my dd I left the track and let it cool down as soon as I got the a/c off message.

To be honest I always run the air conditioner when it is hot out, I have enough power that I don't feel it is slowing me down any. If you were getting it without running the a/c then it must let you know it is too hot to run a/c before the water boils whether a/c is on or off.

I have run a lot of laps with that a/c warning on....I just shut the a/c off and keep running. 280 isn't bad for the synthetic oil in these cars. I have been told that 350 is where you need to pull off.

Really it depends on the kind of track day you are doing, If I'm out on a low volume member day I'll stay out on the track until it automatically goes into limp mode, if I'm out on a day the track is open to the public and there are a lot of cars out there I'll try to come in before the car goes to limp mode so I don't bring out the caution and cut short other peoples limited sessions. I can usually get 2 or 3 hot laps after the a/c goes off. If I reel myself in and perform all of the shifts at 5500 rpm to keep the supercharger rpms (and heat) down the car will run all day at this pace. If you just watch the tach and shift it a little early it stays much, much cooler.

[GenesisCoupe]

Really old topic but I wouldn't start new one.

Just replaced main radiator and thermostat. I installed the Motorad 523160 with opening temp 160F (factory is 190F). Refilled 60/40 with red antifreeze concentrate.

No changes at the engine coolant temp. So it remains 221 degrees maximum then drops to 208 and back. On the highways fluctuates from 176 to 199F.

Fans begin to operate at 221F as it was before.

What's the point of a colder thermostat if there's no change? And the fans start working just like with a regular thermostat

[1JEWLDSSRS]

Originally Posted by GenesisCoupe

Really old topic but I wouldn't start new one.

Just replaced main radiator and thermostat. I installed the Motorad 523160 with opening temp 160F (factory is 190F). Refilled 60/40 with red antifreeze concentrate.

No changes at the engine coolant temp. So it remains 221 degrees maximum then drops to 208 and back. On the highways fluctuates from 176 to 199F.

Fans begin to operate at 221F as it was before.

What's the point of a colder thermostat if there's no change? And the fans start working just like with a regular thermostat

Well one thing you might want to do when you install a colder t-stat is do a tune on the fan settings where they will come on sooner. This will help keep the temps down. They will start cooling sooner.

[GenesisCoupe]

Originally Posted by 1JEWLDSSRS

Well one thing you might want to do when you install a colder t-stat is do a tune on the fan settings where they will come on sooner. This will help keep the temps down. They will start cooling sooner.

Thank you !

[gtstorey]

What is the open highway temp and what is the ambient air temperature?

[Infidel67]

Originally Posted by gtstorey

What is the open highway temp and what is the ambient air temperature?

Well guessing he's from Switzerland it be about 45-65 degrees and colder in the Winter.

[gtstorey]

Originally Posted by Infidel67

Well guessing he's from Switzerland it be about 45-65 degrees and colder in the Winter.

Didn't even notice that. If it's hitting 200 degrees at highway speeds, something else is wrong. It shouldn't need the fans to keep it thermostat temp while cruising in cool ambient temps. I would guess it has air trapped in the cooling system.

[chevy pilot]

Check that there is no air in the system.

[GenesisCoupe]

Originally Posted by gtstorey

What is the open highway temp and what is the ambient air temperature?

Lol. Today I was driving along the highway without entering the city (70-95 mph). The ambient temperature was 56F, on the highway coolant temperature did not rise above 174F. Even when I sit on the gas pedal the temperature did not rise (perhaps better radiator bleeding at high speed).

Can I damage the engine if I constantly drive at such a low temperature? Or is it better than the "normal" 221F?

[GenesisCoupe]

Originally Posted by Infidel67

Well guessing he's from Switzerland it be about 45-65 degrees and colder in the Winter.

It depends. Today its 47F but yesterday was 59F