colder thermostat?

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Anyone have any diy colder modification for the stock one or know where I can buy one? Thanks.


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Infinitiguy19
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Why?

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Infinitiguy19 wrote:Why?

"Why" :rotfl .

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Skibane
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Infinitiguy19 wrote:Why?
Still waiting for an answer...

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You guys are serious. .? :facepalm:

I want the car to run a bit cooler.

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Brew Q
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I want the car to run a bit cooler.
The problem is the cooling system won't run anymore efficiently with a colder T-stat. Coolant will just flow sooner... You MIGHT shave a few degrees in temp off your first run, but that would be it - not enough to add any power.

Now a fan that can push some serious air would help cool down between runs.

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Brew Q wrote:
I want the car to run a bit cooler.
The problem is the cooling system won't run anymore efficiently with a colder T-stat. Coolant will just flow sooner... You MIGHT shave a few degrees in temp off your first run, but that would be it - not enough to add any power.

Now a fan that can push some serious air would help cool down between runs.
I've got the dual 16" electric fans installed on it now. But still want the cooler thermostat because once it cools it down to its closing point the fans won't do me much good if the coolant has stopped flowing.

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Q451990
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Just make sure you keep the ECU above it's threshold (whatever that is) so that you don't drop out of closed loop...

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Q451990 wrote:Just make sure you keep the ECU above it's threshold (whatever that is) so that you don't drop out of closed loop...
Good point, I honestly didn't even think of that. But I'm thinking a 10-20* lower opening heat range would be okay as in won't go into open loop?

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Infinitiguy19
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Anything less than 176*F (I think) and the ECU is in open loop. Anything more that 195*F and the ECU is in timing retard mode. Why are you trying to fix a problem that is not their? I would make sure the cooling system is perfect before try to fix what's not broken.

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Infinitiguy19 wrote:Anything less than 176*F (I think) and the ECU is in open loop. Anything more that 195*F and the ECU is in timing retard mode. Why are you trying to fix a problem that is not their? I would make sure the cooling system is perfect before try to fix what's not broken.

Well I had a big problem with it getting to warm after a run, usually my 1st, 2nd pass is the fastest and then it just gets slower. I could tell and seen it pull timing and my wide bands show it is running richer when it's too warm as well. Just because something isn't broken doesn't mean it can't be made better. My dual fans should help alot but I'd still like it a bit cooler.

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Brew Q
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What about custom phenolic intake spacers? The big metal spider surely absorbs heat the way it is stock.

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Brew Q wrote:What about custom phenolic intake spacers? The big metal spider surely absorbs heat the way it is stock.
Yeah that was a problem for me and is if I am sitting. But the way I have the hood and other things setup once I get moving the engine bay has full cold air going into and around the intake. If it's a cooler day I can go for a drive, stop, pop the hood, and the intake runners are cool. In the winter they would be ice cold. I seen that problem a long time ago but good suggestion thanks.

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I just lifted the hood about a inch in the rear like I had to do on my HC 240sx too keep it cool so now it definitely runs cooler and the fans can push the hot air out easier, just hope I don't get front end lift like I did on my maxima I had after 100mph. That sh-t was kind of sketchy at 120mph.. hopefully that was just something with the maximas design.


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