Thread: 180 T-Stat

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  1. #21 Re: 180 T-Stat 
    Killa Bee Scottydoggs's Avatar
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    not per say, but under the t stat in the lim.

    98 Buick Regal GS, F body brakes, Caddy STS wheels, tinted tails L36 bottom end, lightly ported heads, 1.95 roller rockers, headers, gen 5 N* 3.0 pulley, FSIC, 42 lb injectors, a BrandonHall rebuilt trans, DHP tuned and AEM water/Meth injection https://goo.gl/gpV5kW
     

  2. #22 Re: 180 T-Stat 
    Donating Users EHB's Avatar
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    but it's still on the other side of the thermostat so it's showing the temperature of the coolant that's in the engine?
    2000 GTP - 3" Catted DP...ZZP Plog...9" Cone filter...Reptile pcm...3.4 pulley...AL104's
     

  3. #23 Re: 180 T-Stat 
    Killa Bee Scottydoggs's Avatar
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    yeah, its in the coolant under the t sat.

    98 Buick Regal GS, F body brakes, Caddy STS wheels, tinted tails L36 bottom end, lightly ported heads, 1.95 roller rockers, headers, gen 5 N* 3.0 pulley, FSIC, 42 lb injectors, a BrandonHall rebuilt trans, DHP tuned and AEM water/Meth injection https://goo.gl/gpV5kW
     

  4. #24 Re: 180 T-Stat 
    GXP Level Member Grimsin's Avatar
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    im like scotty tuned fans to turn on at 180 and have a 195 t-stat. even with under drive waterpump pulley i dont ever go over 190.

    3.8l N/A POWA! :4'' HAI\L67 HVTB\HV3\ER Rockers\WP underdrive pulley\Headers\cat delete\91 octane overkill incar tune.3.69 gears, Trans go shift kit.
    My Car:http://www.grandprixforums.net/threa...2005-Impala-LS
     

  5. #25 Re: 180 T-Stat 
    GXP Level Member Grimsin's Avatar
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    Quote Originally Posted by 01Grand PrixGT View Post
    Yeah, it sounds pretty complicated. I'm just gonna stick to not tuning anything lol.
    just order a tuned pcm from overkill, dont need to tune yourself

    3.8l N/A POWA! :4'' HAI\L67 HVTB\HV3\ER Rockers\WP underdrive pulley\Headers\cat delete\91 octane overkill incar tune.3.69 gears, Trans go shift kit.
    My Car:http://www.grandprixforums.net/threa...2005-Impala-LS
     

  6. #26 Re: 180 T-Stat 
    SE Level Member Drive XR7's Avatar
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    I run a 180* tstat and a ZZP 1.0 PCM. I haven't seen 195* temps since I did that. Even idling in traffic in 90* weather.
    Jason
    2001 Bronzemist Pontiac Grand Prix GTP - SOLD!
    2003 Sonic Blue SVT Mustang Cobra Convertible #2421 (1 of 340)
    2013 Ruby Red Ford Edge Limited EcoBoost
     

  7. #27 Re: 180 T-Stat 
    Who is this guy? SubwayGuy's Avatar
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    Quote Originally Posted by EHB View Post
    the temperature sensor is reading the coolant in the block right ?
    I belive so. There's a connector right under the thermostat behind the crossover pipe. I think that's the coolant temperature sensor. It goes right into the block.
     

  8. #28 Re: 180 T-Stat 
    Donating Users EHB's Avatar
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    Quote Originally Posted by ScottyDoggs View Post
    yeah, its in the coolant under the t sat.
    so then why is kornhead predicting doom and gloom ? he never actually said what he thinks the negative side effects are. as long as the engine temps are running cooler , then mission accomplished right ? i actually do have a 180 tstat , but after seeing the temps never even get to halfway on the gauge anymore, i figured there's no reason to put it in.
    2000 GTP - 3" Catted DP...ZZP Plog...9" Cone filter...Reptile pcm...3.4 pulley...AL104's
     

  9. #29 Re: 180 T-Stat 
    Moderator Russosaur's Avatar
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    Seems like im not the only one with 180 fans and 195 tstat, I love it.
    2019 F150 XL - Make it run 12's N/A
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    02 GT "Slowkar" 180k - Top Swap, Gen V, TOG Headers, 1.9s, e85, 3.25. It's literally the slowest e85 car ever....

     

  10. #30 Re: 180 T-Stat 
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    Quote Originally Posted by Russosaur View Post
    Seems like im not the only one with 180 fans and 195 tstat, I love it.
    2000 GTP - 3" Catted DP...ZZP Plog...9" Cone filter...Reptile pcm...3.4 pulley...AL104's
     

  11. #31 Re: 180 T-Stat 
    DUI BABY Bio248's Avatar
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    you're basically running your fans all the time for no reason. that'd be a decent reason as to why you'd burn them out faster.

    i had a caspers fan switch in my car so if i was ever in heavy traffic i could turn it on to keep it cool. having them run all the time via the PCM is kinda stupid.
     

  12. #32 Re: 180 T-Stat 
    Turbo is the way to go. BillBoost37's Avatar
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    Quote Originally Posted by 01Grand PrixGT View Post
    It goes right into the block.
    Actually it's in the LIM not the block.

    Here's a pic of the end of the LIM, hole on the left is the ECT hole


    Another pic from underneath


    The electrical connector with the yellow on it goes to the sensor, just to it's right
    I drink..so consider that when reading my posts.

    2010 Audi A6 Dual IC's
     

  13. #33 Re: 180 T-Stat 
    GrandPrix Junkie CrazyGuy03's Avatar
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    177-183 is how my temps range with a 180* t stat and proper fan settings
    Not that it matters because this comment will be buried under 7 more pages lmao!
    2003 Buick Regal GSX lots of mods - click here to see latest build - http://www.grandprixforums.net/threa...ld-for-the-gsx

    *For Reference - Does not have a Zack Howard Cam - It's an Intense Stage 3 - Thank You*
     

  14. #34 Re: 180 T-Stat 
    Turbo is the way to go. BillBoost37's Avatar
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    Quote Originally Posted by Bio248 View Post
    you're basically running your fans all the time for no reason. that'd be a decent reason as to why you'd burn them out faster.

    i had a caspers fan switch in my car so if i was ever in heavy traffic i could turn it on to keep it cool. having them run all the time via the PCM is kinda stupid.
    No it's not. Because they only come on below X speed. They only run when the car is up to temp. Which keeps your temps constant instead of spiking and diving.
    I drink..so consider that when reading my posts.

    2010 Audi A6 Dual IC's
     

  15. #35 Re: 180 T-Stat 
    DUI BABY Bio248's Avatar
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    i had a 180* stat with proper fan settings for it.

    i'm saying running a 195* stat with 180* fan settings is dumb.
     

  16. #36 Re: 180 T-Stat 
    Turbo is the way to go. BillBoost37's Avatar
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    IMO it's the same as running 195 settings. Close enough..
    I drink..so consider that when reading my posts.

    2010 Audi A6 Dual IC's
     

  17. #37 Re: 180 T-Stat 
    Moderator Russosaur's Avatar
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    Quote Originally Posted by BillBoost37 View Post
    No it's not. Because they only come on below X speed. They only run when the car is up to temp. Which keeps your temps constant instead of spiking and diving.
    Did not know this, thought it was just on 24/7.
    2019 F150 XL - Make it run 12's N/A
    2012 F150 STX
    - Gonna be a race truck
    02 GT "Slowkar" 180k - Top Swap, Gen V, TOG Headers, 1.9s, e85, 3.25. It's literally the slowest e85 car ever....

     

  18. #38 Re: 180 T-Stat 
    Turbo is the way to go. BillBoost37's Avatar
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    It's a bit tough to check at 65mph. Although..I think you could give it a good try. hahaha
    I drink..so consider that when reading my posts.

    2010 Audi A6 Dual IC's
     

  19. #39 Re: 180 T-Stat 
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    A couple of notes about running fans:
    1) Fans consume electricity, and therefore power (via the alternator)
    2) The amount of power fans draw decrease with speed. If a fan is trying to pull air at 30 MPH, but you are traveling at 60 MPH, the fans are basically freewheeling and barely drawing any current.
    3) Cooler-running engines tend to knock less, therefore able to make more HP at WFO (typically this requires tuning changes).
    4) Cooler-running engines have slightly less efficient combustion during normal driving- giving higher emissions, decreasing MPG, letting your oils accumulate more moisture & volatiles (which typically are acidic), and wearing out your Catalytic Converter faster.
    5) If your fans are running but not needed, that's wasted energy.
    6) Most OEM electric fans draw somewhere around 2,000 CFM (I'm not sure of the exact spec's on our cars). At 60 MPH, your radiator is exposed to about 15,000 CFM. There is no need to run fans once you are at speed. Generally anything above about 25MPH is useless for fans.
    7) If your fan is running but your thermostat is closed, you're probably wasting all of the energy required to power the fans. Fans are really only needed when the thermostat is 100% open and ambient moving air is insufficient to cool the contents of the radiator.

    And a couple of other things to keep in mind:
    1) The temp seen by the thermostat is not necessarily the same as the temperature seen by the computer via the thermocouple.
    2) Cylinders 2 & 5 run hotter than cylinders 1,3,4, and 6 - because they are "surrounded" by other cylinders. But because detonation (preignition) is bad in any cylinder, these are the ones where you typically have to fight detonation. This effect is minimized with higher flow rates.
    3) There is NO MERIT WHATSOEVER to the argument that "coolant is flowing to fast to be cooled off in the radiator". The faster the better, period end of story. Therefore a periodic flushing is a good idea on several fronts.
    4) I've never seen a water pump fail in such a way as to cause a cooling problem (unless it is completely seized). This would require that the impeller is somehow broken or not functional. Water pumps are designed to start dripping long before seizure typically occurs.
    5) Cooling needs of the A/C system are not necessarily the same as the cooling needs of the engine, so fans may run based on the need of the A/C system even though the engine doesn't need it.
    6) In some of the cars I've had in the past (not sure about this one), cooling fans are powered down above XX MPH because they are useless (even when A/C is running).
    7) Preignition / detonation can be somewhat controlled by fuel octane rating. I run 89 octane in summer because it cuts back on my knock dramatically.
    8) Octane requirements of a given engine increase as it ages. This is typically because of carbon buildup that creates local "hotspots" which can pre-ignite the fuel mixture in the cylinder. This can be somewhat offset by running the engine cooler as well (i.e. 180-degree themostat), although my personal preference is to use higher octane.

    So "will a 180-degree thermostat help me"? Probably not - it's mostly use to defend against knock as you try to extract more and more HP from your engine.

    -BC
     

  20. #40 Re: 180 T-Stat 
    Who is this guy? SubwayGuy's Avatar
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    Quote Originally Posted by RickyBobby03 View Post
    177-183 is how my temps range with a 180* t stat and proper fan settings
    Not that it matters because this comment will be buried under 7 more pages lmao!
    Dude I know. I just asked for insight and that's all I wanted. Now it turned into arguing and such lol .
     

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