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Low temp thermostat

This is a discussion on Low temp thermostat within the External Engine forums, part of the LSx Technical Help Section category; Is this a good investment? Can you tell a difference? Will your car run better? I have a few bolt-ons, ...

  1. #1
    Member SS-Power's Avatar
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    Low temp thermostat

    Is this a good investment? Can you tell a difference? Will your car run better? I have a few bolt-ons, but mostly stock. The car is daily driven. Any input

  2. #2
    member since may 2000 nhraformula's Avatar
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    you have to go into the computer to set it at a lower temp
    2000 nhra edition formula
    a few bolt ons, 379 rwhp
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    MOTOR CITY MARO' SSTODD's Avatar
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    I would say no, no, and no to your questions.

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    Member SS-Power's Avatar
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    ok, thanks

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    UberTapping Friction Pimp Anthracis's Avatar
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    not really a big plus. it causes the coolant to cycle too much...or so I've heard from others. I would be reluctant to do it...until you really need it. I have not done it yet for this reason. I believe it also increases emissions if that is a concern.

  6. #6
    i thought it was worth it. i set my fan to come on at 190 and installed to 160 t-stat.runs a little cooler now

  7. #7
    98T/Aformula
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    Set mine at 160, no problems here, its always better to run a bit cooler if you ask me...

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    Senior Member mrr23's Avatar
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    Quote Originally Posted by SS-Power View Post
    Is this a good investment? Can you tell a difference? Will your car run better? I have a few bolt-ons, but mostly stock. The car is daily driven. Any input

    to me, it is. can't really tell a difference. mainly helps in keeping detonation in check. it can run better, because the motor is cooler, which keeps the intake cooler. but this is slight. i drive mine every day.

    for it to be effective, you need to have the fans set lower to match it. factory, they are set at fan #1 226* and fan #2 234*.

    a t-stat is nothing more than a door. the water temp won't be any lower than what it is designed to open at.

  9. #9
    Senior Member mrr23's Avatar
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    Quote Originally Posted by nhraformula View Post
    you have to go into the computer to set it at a lower temp
    the fan on/off settings, yes.

  10. #10
    Senior Member mrr23's Avatar
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    Quote Originally Posted by Anthracis View Post
    not really a big plus. it causes the coolant to cycle too much...or so I've heard from others. I would be reluctant to do it...until you really need it. I have not done it yet for this reason. I believe it also increases emissions if that is a concern.
    cycle too much?? never heard that one before.

    yes, better emissions comes from a hotter running engine. which is why they run it so high, to pass emissions.

  11. #11
    Jesus died to save you! Killer_bluebird's Avatar
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    I will say yes. But like it was mentioned you want to have the fans programmed to come on sooner. My average temperature is 177* cruising and around 185*-190* after beating on it on the highway for a longer period of time.
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    i like my 160 in the summer and 180 in the winter


    95 TA A4, Black on Black C5 Z06 wheels, CAI, 160 powerstat, TB coolent bypass, TB foil, LT4 Knock Sensor, STB, SFC, Poly trans and torque arm mounts, flowmaster muffler, gutted cat, and hypertech tuned.
    http://www.fquick.com/SexyTransAm

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    Senior Member ss~zoso~ss's Avatar
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    i tell ya i got the SLP fan switch like 2 years ago and its great, there's three switch positions , HIGH, STOCK, LOW settings, the install is easy and its not that expensive,

    even if you leave the fans on for like 5 hours they wont kill your battery

  14. #14
    Jesus died to save you! Killer_bluebird's Avatar
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    BTW temperatures where taken through hptuner's scanner dirrectly from the computer as the stock temperature gauge is a joke.

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    Senior Member mrr23's Avatar
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    Quote Originally Posted by ss~zoso~ss View Post
    i tell ya i got the SLP fan switch like 2 years ago and its great, there's three switch positions , HIGH, STOCK, LOW settings, the install is easy and its not that expensive,

    even if you leave the fans on for like 5 hours they wont kill your battery
    i have that as well. a local guy, near me, makes them.

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    Senior Member ss~zoso~ss's Avatar
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    i love it, i can keep the car's temp at 180 degrees on a 100 degree day, my temps should be much lower after i install my coated pacesetters

  17. #17
    Member SS-Power's Avatar
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    Thanks everyone for your help.

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