180 Stat - Jeep Wrangler Forum
Jeep Wrangler Forum

Go Back   Jeep Wrangler Forum > JK Jeep Wrangler Forum > JK Tech Forum

Join Wrangler Forum Today


Reply
 
Thread Tools

Please support our sponsors and let them know you heard about them on WranglerForum.com
Old 07-07-2014, 12:35 PM   #1
Jeeper
 
Join Date: Apr 2014
Posts: 26
180 Stat

anybody have part numbers for 180 stat to fit 2014 3.6?

wadejesu is offline   Quote Quick Reply
Old 07-07-2014, 02:36 PM   #2
Jeeper
 
Cronoswing's Avatar
 
Join Date: Jun 2014
Location: Sebring FL
Posts: 132

Cronoswing is offline   Quote Quick Reply
Old 07-07-2014, 03:38 PM   #3
Supporting Member

WF Supporting Member
 
m998dna's Avatar
 
Join Date: Jan 2012
Posts: 2,492
Quote:
Originally Posted by wadejesu View Post
anybody have part numbers for 180 stat to fit 2014 3.6?
Yes... Ripp has one, but I have a few questions that need to be answered before I would buy one.

RIPP 180 Degree Thermostat - 3.6L Pentastar

.
__________________
2013 Wrangler JKUR10A 3.6L DOHC - MDH 032515
:: 2002 Chevrolet G3500 LWB 8.1L - motovan
:: 1991 Cherokee Laredo 4.0L HO - resto in-process
:: 2010 Cherokee SRT8 6.1L Hemi - sold
:: 1965 Plymouth Sedan 562ci Hemi - sold
m998dna is online now   Quote Quick Reply
Old 07-07-2014, 04:38 PM   #4
Jeeper
 
2013 Moab's Avatar
 
Join Date: Jan 2014
Location: Sullivan Cnty, NY
Posts: 842
I would like to know if you put a lower stat in the 3.6 will it throw a code for low operating temp. I did this in my daughters liberty and it would throw this code because the operating temp never went above 194* within the first 10 minutes, or whatever the parameter was.
2013 Moab is offline   Quote Quick Reply
Old 07-07-2014, 04:45 PM   #5
Supporting Member

WF Supporting Member
 
m998dna's Avatar
 
Join Date: Jan 2012
Posts: 2,492
Quote:
Originally Posted by 2013 Moab View Post
I would like to know if you put a lower stat in the 3.6 will it throw a code for low operating temp. I did this in my daughters liberty and it would throw this code because the operating temp never went above 194* within the first 10 minutes, or whatever the parameter was.
Good info... this is why I'm asking Ripp the questions. So far no response.

.
__________________
2013 Wrangler JKUR10A 3.6L DOHC - MDH 032515
:: 2002 Chevrolet G3500 LWB 8.1L - motovan
:: 1991 Cherokee Laredo 4.0L HO - resto in-process
:: 2010 Cherokee SRT8 6.1L Hemi - sold
:: 1965 Plymouth Sedan 562ci Hemi - sold
m998dna is online now   Quote Quick Reply
Old 07-07-2014, 07:19 PM   #6
Jeeper
 
Join Date: Apr 2014
Posts: 26
I'll let everyone know after I install stat
wadejesu is offline   Quote Quick Reply
Old 07-07-2014, 07:50 PM   #7
Supporting Member

WF Supporting Member
 
m998dna's Avatar
 
Join Date: Jan 2012
Posts: 2,492
Quote:
Originally Posted by wadejesu View Post
I'll let everyone know after I install stat
Make sure you check the oil pressure upon start up. It typically reads 60 to 80 psi until the coolant reaches 194 degrees - above that temp threshold it drops between 35 to 45 psi.

I've never timed mine, so maybe ten minutes is a relevent benchmark.

.
__________________
2013 Wrangler JKUR10A 3.6L DOHC - MDH 032515
:: 2002 Chevrolet G3500 LWB 8.1L - motovan
:: 1991 Cherokee Laredo 4.0L HO - resto in-process
:: 2010 Cherokee SRT8 6.1L Hemi - sold
:: 1965 Plymouth Sedan 562ci Hemi - sold
m998dna is online now   Quote Quick Reply
Old 07-08-2014, 09:03 AM   #8
Jeeper
 
Cronoswing's Avatar
 
Join Date: Jun 2014
Location: Sebring FL
Posts: 132
It's weird more parts arent readily available
Cronoswing is offline   Quote Quick Reply
Old 07-08-2014, 10:43 AM   #9
Supporting Member

WF Supporting Member
 
SteedGun's Avatar
 
Join Date: Dec 2013
Location: Utah - A Jeep Friendly Place
Posts: 975
Has anyone tried the Rugged Ridge 195* thermostat?
__________________
Molon Labe - Carry on!
SteedGun is online now   Quote Quick Reply
Old 07-08-2014, 10:52 AM   #10
yes
Newb
 
Join Date: Nov 2013
Posts: 6
i ordered the thermostat and i will fit it soon and then will lower the fan setting.. and will see.

i am sure that the oil pump have tow stages first stage will work until you reach 3500 rpm then the stage tow will start from there.
yes is offline   Quote Quick Reply
Old 07-08-2014, 11:04 AM   #11
Supporting Member

WF Supporting Member
 
SteedGun's Avatar
 
Join Date: Dec 2013
Location: Utah - A Jeep Friendly Place
Posts: 975
Well. I just checked with Quadratec and they do not show any lower degree thermostats for the 2014. I guess the Rugged Ridge is only for up to 2011s. Bummer.
__________________
Molon Labe - Carry on!
SteedGun is online now   Quote Quick Reply
Old 07-08-2014, 01:54 PM   #12
Sponsoring Vendor
 
RIPPMODS's Avatar
 
Join Date: Feb 2011
Posts: 262
We have not seen any issues in our testers using the 180 deg thermostat. It is important to understand that the lower temperature thermostat allows the engine to keep ahead of the high climbing temperature. (IE: Crawling offroad under heavy load). It would work best if used in conjunction with a programmer (like Diablosport InTune DCX) that can allow for early activation of the cooling fans.

RIPP
__________________
RIPP Superchargers
*RIPP BLOG*
2012-2013 3.6L Supercharger Systems NOW AVAILABLE!!
Most Powerful CARB LEGAL 3.8L JK's
OVER 3000 SOLD Worldwide
718-815-1313
Come Visit us at SEMA! Booth 21661
RIPPMODS is offline   Quote Quick Reply
Old 07-08-2014, 01:58 PM   #13
Supporting Member

WF Supporting Member
 
m998dna's Avatar
 
Join Date: Jan 2012
Posts: 2,492
Quote:
Originally Posted by RIPPMODS View Post
We have not seen any issues in our testers using the 180 deg thermostat. It is important to understand that the lower temperature thermostat allows the engine to keep ahead of the high climbing temperature. (IE: Crawling offroad under heavy load). It would work best if used in conjunction with a programmer (like Diablosport InTune DCX) that can allow for early activation of the cooling fans.

RIPP

See my thread. Have you tested the two-stage oil pump for functionality?

.
__________________
2013 Wrangler JKUR10A 3.6L DOHC - MDH 032515
:: 2002 Chevrolet G3500 LWB 8.1L - motovan
:: 1991 Cherokee Laredo 4.0L HO - resto in-process
:: 2010 Cherokee SRT8 6.1L Hemi - sold
:: 1965 Plymouth Sedan 562ci Hemi - sold
m998dna is online now   Quote Quick Reply
Old 07-08-2014, 04:51 PM   #14
Sponsoring Vendor
 
RIPPMODS's Avatar
 
Join Date: Feb 2011
Posts: 262
Reply from your other thread:
Quote:
Quote:
Originally Posted by m998dna
I thought I'd start a new thread since this got buried in the problem supercharger thread.

https://ripp.squarespace.com/shop/20...deg-thermostat

RIPP...

In response to someone's temps running high when climbing a long hill, you said "RIPP now offers a 180deg thermostat for the Pentastar - we are the only ones on the market with this product at the moment. Stock one is 209 - this helps immensely with this" ...

Before I purchase a 180 degree thermostat, I need a few questions answered.

1. With this installed what are the observed operating temp ranges?

2. How does this work with the two-stage oil pump? Currently, when the coolant temp reaches 194 degrees, the oil pump switches to a lower PSI range. How does your 180 thermostat impact the function of the two-stage oil pump? Has this been tested?

3. Will this 180 degree thermostat affect emissions? Have you tested before and after readings?

Thanks

.


Thank you for your question - however it may be causing false insecurity... This is actually how the variable pump works.

A chain-driven, vane-type variable displacement oil pump adjusts the flow rate and pressure as commanded by the engine management system, which uses a solenoid to drive the pump into low or high pressure mode. For example, below 3,500 rpm, the pump conserves energy by using low pressure; at speeds over 3,500 rpm, the pump switches to high pressure.

Link to Back data up see oil system and engine lubrication

1) on average 10degs cooler over an 18th month test period, including high altitude tests, and running in SoCal.

2) Non- issue

3) To our knowledge with our SC it does not, but we are programmed for it - we have not tested in a completely NA environment. However, if you are concerned any end user can easily purchase a Diablo DCX tool and use it's quick adjust feature to adjust for the 180 thermostat. This will scale the fuel trims and set Fan speeds as well. But it needs to noted that the Pentastar's fueling system is very complex and extremely fast. From our experience with both the hardware and calibration side, we would say it would correct itself for the most part.

We are confident in this platform the 180* is a drop in part which to the best of our knowledge simply gives end users an edge over the 209. Will you need to switch back to the 209 in the winter, could be based on the temps, but we haven't and outside of the interior heat not getting volcano hot (you all know you've tested it) its been fine.

__________________
RIPP Superchargers
*RIPP BLOG*
2012-2013 3.6L Supercharger Systems NOW AVAILABLE!!
Most Powerful CARB LEGAL 3.8L JK's
OVER 3000 SOLD Worldwide
718-815-1313
Come Visit us at SEMA! Booth 21661
RIPPMODS is offline   Quote Quick Reply
Old 07-08-2014, 08:23 PM   #15
Supporting Member

WF Supporting Member
 
m998dna's Avatar
 
Join Date: Jan 2012
Posts: 2,492
From my other thread...

Thank you for the response. This is a post from a LX Forum.

Quote:
3.6L pentastar engine uses a 2 stage oil pump with a solenoid that controls pump displacement. pressure is relative to temp/viscosity, RPM, engine condition and PCM controlled solenoid position.
I can demonstrate, daily, the solenoid is activated exactly at 194 degrees. It does not matter where the engine rpm is at, the outside temperature, etc, etc. It will in fact switch from a high displacement pump to a normal operating displacement pump at the blink of an eye.

High displacement operates between 60 to 80 psi up to 194 degrees.

Normal displacement operates between 30 to 45 psi beyond 194 degrees.. like clockwork.

Test a stocker for yourself... or anyone that owns a 3.6L Pentastar.

.
__________________
2013 Wrangler JKUR10A 3.6L DOHC - MDH 032515
:: 2002 Chevrolet G3500 LWB 8.1L - motovan
:: 1991 Cherokee Laredo 4.0L HO - resto in-process
:: 2010 Cherokee SRT8 6.1L Hemi - sold
:: 1965 Plymouth Sedan 562ci Hemi - sold
m998dna is online now   Quote Quick Reply
Old 07-09-2014, 11:45 AM   #16
Supporting Member

WF Supporting Member
 
SteedGun's Avatar
 
Join Date: Dec 2013
Location: Utah - A Jeep Friendly Place
Posts: 975
m998dna,

I think the only way we are going to get an answer to our question is to try the RIPP 180 ourselves and see if it throws a code. I will get one ordered today.

EDIT

I just ordered one from RIPP. You might was well call them RIPP-Off from now on as they want $ 49.95 for the thermostat and $ 16.92 more for shipping at a total of $ 66.87 this is Wrangler robbery.

Heads up folks this is way over priced so I will let you know if it works!
__________________
Molon Labe - Carry on!
SteedGun is online now   Quote Quick Reply
Old 07-09-2014, 12:55 PM   #17
Supporting Member

WF Supporting Member
 
m998dna's Avatar
 
Join Date: Jan 2012
Posts: 2,492
Quote:
Originally Posted by SteedGun View Post
m998dna,

I think the only way we are going to get an answer to our question is to try the RIPP 180 ourselves and see if it throws a code. I will get one ordered today.

EDIT

I just ordered one from RIPP. You might was well call them RIPP-Off from now on as they want $ 49.95 for the thermostat and $ 16.92 more for shipping at a total of $ 66.87 this is Wrangler robbery.

Heads up folks this is way over priced so I will let you know if it works!
Steed,

I agree. Hope for the best... despite RIPP'S internet research on Allpar, a simple Google search on the subject revealed the correct answer (see my thread). The two stage oil pump is in fact driven off the PCM with inputs from various sensors... one of those being coolant temps and is repeatable daily at 194 degrees.

Thanks for taking the lead on this.

Btw... someone is manufacturing this and it's not RIPP. I will pursue other avenues.

.
__________________
2013 Wrangler JKUR10A 3.6L DOHC - MDH 032515
:: 2002 Chevrolet G3500 LWB 8.1L - motovan
:: 1991 Cherokee Laredo 4.0L HO - resto in-process
:: 2010 Cherokee SRT8 6.1L Hemi - sold
:: 1965 Plymouth Sedan 562ci Hemi - sold
m998dna is online now   Quote Quick Reply
Old 07-09-2014, 01:43 PM   #18
Sponsoring Vendor
 
RIPPMODS's Avatar
 
Join Date: Feb 2011
Posts: 262
Quote:
Originally Posted by m998dna View Post
Steed,

I agree. Hope for the best... despite RIPP'S internet research on Allpar, a simple Google search on the subject revealed the correct answer (see my thread). The two stage oil pump is in fact driven off the PCM with inputs from various sensors... one of those being coolant temps and is repeatable daily at 194 degrees.

Thanks for taking the lead on this.

Btw... someone is manufacturing this and it's not RIPP. I will pursue other avenues.

.
If we are not manufacturing this part? Then how pray tell does it have "RIPP" stamped right on it?
No one is forcing you you buy this, or any of our engineered and tested products. As stated before, in none of our tester vehicles, (300+ passes on the dyno, tested to ambiant temps below 0 deg F - 120+ ) have we found an issues with the 2 stage oil pump and no codes thrown. According to all of our calibrators, and engineers, "This is a non-issue."
As far as price, in low volume manufacturing, cost per unit is SIGNIFICANTLY higher.

RIPP

RIPP
__________________
RIPP Superchargers
*RIPP BLOG*
2012-2013 3.6L Supercharger Systems NOW AVAILABLE!!
Most Powerful CARB LEGAL 3.8L JK's
OVER 3000 SOLD Worldwide
718-815-1313
Come Visit us at SEMA! Booth 21661
RIPPMODS is offline   Quote Quick Reply
Old 07-09-2014, 01:47 PM   #19
Supporting Member

WF Supporting Member
 
m998dna's Avatar
 
Join Date: Jan 2012
Posts: 2,492
Quote:
Originally Posted by RIPPMODS View Post
If we are not manufacturing this part? Then how pray tell does it have "RIPP" stamped right on it?
No one is forcing you you buy this, or any of our engineered and tested products. As stated before, in none of our tester vehicles, (300+ passes on the dyno, tested to ambiant temps below 0 deg F - 120+ ) have we found an issues with the 2 stage oil pump and no codes thrown. According to all of our calibrators, and engineers, "This is a non-issue."
As far as price, in low volume manufacturing, cost per unit is SIGNIFICANTLY higher.

RIPP

RIPP
OK .. you have fab and assembly line setup or sub'd to OEM? Stamping is easy.
.
__________________
2013 Wrangler JKUR10A 3.6L DOHC - MDH 032515
:: 2002 Chevrolet G3500 LWB 8.1L - motovan
:: 1991 Cherokee Laredo 4.0L HO - resto in-process
:: 2010 Cherokee SRT8 6.1L Hemi - sold
:: 1965 Plymouth Sedan 562ci Hemi - sold
m998dna is online now   Quote Quick Reply
Old 07-09-2014, 01:52 PM   #20
Sponsoring Vendor
 
RIPPMODS's Avatar
 
Join Date: Feb 2011
Posts: 262
Quote:
Originally Posted by m998dna View Post
OK .. you have fab and assembly line setup or sub'd to OEM? Stamping is easy.
.
Yes

RIPP
__________________
RIPP Superchargers
*RIPP BLOG*
2012-2013 3.6L Supercharger Systems NOW AVAILABLE!!
Most Powerful CARB LEGAL 3.8L JK's
OVER 3000 SOLD Worldwide
718-815-1313
Come Visit us at SEMA! Booth 21661
RIPPMODS is offline   Quote Quick Reply
Old 07-09-2014, 02:57 PM   #21
Supporting Member

WF Supporting Member
 
SteedGun's Avatar
 
Join Date: Dec 2013
Location: Utah - A Jeep Friendly Place
Posts: 975
No worries. Once I get this part I will test it in my 2014 Rubicon X and you can be sure I will write up the whole experience and be fair to all.

I can say with a clear conscience that RIPP is charging way too much for this part and for shipping.

More to come...
__________________
Molon Labe - Carry on!
SteedGun is online now   Quote Quick Reply
Old 07-12-2014, 12:43 PM   #22
Jeeper
 
Join Date: Jul 2014
Posts: 51
Ok, here is my experience with two different t stat for 2014 jku
First I got 190F from chevy colorado 5 cylinder it acdelco oem part.
What I have done is got the t-stat apart and used only the element from the colorado stat, the valve is press fit what you need is to use the valve from your 2014 jk and use the t state element from the colorado t-stat which is rated for 190f.
NO CHANGE IN MY TEMP AT ALL BECAUSE THE ELECTRIC FAN WILL NOT KICK ON UNTIL 226F NOT MATTER WHAT YOU HAVE DONE TO IT.
STOP AND GO IS THE SAME TEMP NO CHANGE
ON HIGHWAY IT STILL THE SAME BECAUSE THE FAN WON'T KICK ON UNTIL 226 FOR LOW SPEED AND THE PWM CONTROLLER WILL RISE THE FAN SPEED TO THE HIGH IF THE COOLANT REACH 230F.
so my experience with 180F thermostat is the same result what I found if you remove the thermostat you will gain the same results.
The electronic fan must kick on at lower speed to gain lower coolant temp on stop and go and on the highway driving.
also I have diablosport trinity 1000 and this thing doesn't work with 2014 jk because 2014 has different PCM than the 12-13 jks.
I am still waiting DS to comes up with new update that works for fan adjustment,
by the way trinity will work for other parameters like tire size and final drive rations, but it doesn't work with my needs.
also superchips does the same thing will not control the fan adjustment.
zeyad is offline   Quote Quick Reply
Old 07-12-2014, 02:07 PM   #23
Supporting Member

WF Supporting Member
 
m998dna's Avatar
 
Join Date: Jan 2012
Posts: 2,492
Thanks zeyad... in short, if one had the ability to adjust fan settings, would we need to use a 180 degree thermostat? Do the fans come on and stay on when the AC is turned on?

Thanks again for your research.

.
__________________
2013 Wrangler JKUR10A 3.6L DOHC - MDH 032515
:: 2002 Chevrolet G3500 LWB 8.1L - motovan
:: 1991 Cherokee Laredo 4.0L HO - resto in-process
:: 2010 Cherokee SRT8 6.1L Hemi - sold
:: 1965 Plymouth Sedan 562ci Hemi - sold
m998dna is online now   Quote Quick Reply
Old 07-12-2014, 04:55 PM   #24
Jeeper
 
Old Dogger's Avatar
 
Join Date: May 2012
Location: Phoenix, Rattlesnake Country
Posts: 3,338
Engines of today, are designed to run at certain temperatures, to meet EPA requirements, along with maximum MPG, and power output. So I will be leaving the factory original stat in mine.

I'm not sure where some of these high temperature readings are originating from, but mine on a hot day in Arizona, (113 degrees), after running on the highway for about a 1/2 and hour, with the A/C on, when checked with a In-Fra red heat gun, top tank temperature, it indicated 207 degrees. This is with the original factory stat!!!
__________________
Wranglers are mean machines....

1974 CJ5, 2003 TJ, 2013 2 door Rubicon

Remember in life, the only dumb question, is the question not asked!
Old Dogger is online now   Quote Quick Reply
Old 07-12-2014, 06:36 PM   #25
Jeeper
 
Join Date: Jul 2014
Posts: 51
Quote:
Originally Posted by m998dna View Post
Thanks zeyad... in short, if one had the ability to adjust fan settings, would we need to use a 180 degree thermostat? Do the fans come on and stay on when the AC is turned on?

Thanks again for your research.

.
Ok, I am ASE CERTIFIED A1, A3, A4, A5, A6
what I can tell 190F is the best thermostat for pentastar engine
If you can adjust the radiator fan.
jk radiator is not large enough to cool down the coolant if you go with 180F, because the thermostat will stay open and the coolant wont cool down, usually we need a period of specific time to hold the coolant in the radiator to allow it to cool down before we send it to the engine.
if 180F t stat open earlier and the coolant cycle to fast then we lost the period which is important for cooling cycle.

Back to your question
regardless of the 180f or 203f stat the fan will cycle on 2014 jk depends on the condenser pressure and coolant temp.
What I have notice the fan some times it stay on low speed all the time and pulse to a little higher speed and the come back to slow speed, in another scenario you can't predict the way the fan will work.
At 93f ambient temp I notice the fan stay on at low speed for couple minutes and the coolant temp in my dash is 204f then the fan goes to high speed cools down to 199 then it shutdown and back again to low speed when the coolant reach 203f.
last week I had appointment at the dealership to update the PCM.
the new update has more aggressive cooling fan setting at idle but no change on the highway.

If I can adjust the fan setting I will not change the thermostat at all.
I need the fan to comes on at low speed at 200f and reach high speed at 215f
zeyad is offline   Quote Quick Reply
Old 07-12-2014, 06:43 PM   #26
Jeeper
 
Join Date: Jul 2014
Posts: 51
Quote:
Originally Posted by Old Dogger View Post
Engines of today, are designed to run at certain temperatures, to meet EPA requirements, along with maximum MPG, and power output. So I will be leaving the factory original stat in mine.

I'm not sure where some of these high temperature readings are originating from, but mine on a hot day in Arizona, (113 degrees), after running on the highway for about a 1/2 and hour, with the A/C on, when checked with a In-Fra red heat gun, top tank temperature, it indicated 207 degrees. This is with the original factory stat!!!
230f is overheat.
I got my reading from my dash i got fully loaded jku.
also I compare the dash reading with my scan tool and I got the same reading.
the problem is when I used my jeep on the south California desert my jk reached 243f and the car went to limp mode i had to stop the vehicle and allow it to cool down for 15 minutes before I can drive it this is really bad for brand new jeep I paid over $40K.
by the way I wasn't pushing the jeep so hard the RPM never passed 4500 that day.
zeyad is offline   Quote Quick Reply
Old 07-12-2014, 09:17 PM   #27
Jeeper
 
Old Dogger's Avatar
 
Join Date: May 2012
Location: Phoenix, Rattlesnake Country
Posts: 3,338
Quote:
Originally Posted by zeyad View Post
230f is overheat.
I got my reading from my dash i got fully loaded jku.
also I compare the dash reading with my scan tool and I got the same reading.
the problem is when I used my jeep on the south California desert my jk reached 243f and the car went to limp mode i had to stop the vehicle and allow it to cool down for 15 minutes before I can drive it this is really bad for brand new jeep I paid over $40K.
by the way I wasn't pushing the jeep so hard the RPM never passed 4500 that day.
Wow, 230 to 243, yes that is way to hot....
O.K., so you have a JKU, which is about 400 lbs. heavier than my JKR. Mine is a 2013, and originally had a defective radiator cap. It wouldn't draw the coolant back into the radiator when cooling down, so my Dealer installed the updated cap. Since then it draws down, and when I check the radiator when cold with cap off, it is full to the top. I also keep the bugs washed out of my trans cooler, and A/C Condenser.
That cap is the only issue that I have had with my cooling system, and even then it didn't over heat.

I do use mine off road somewhat, back in the woods, and some moderate rock crawl, but this doesn't take place down here in the Phoenix heat. This takes place up on our rim, at about 7000 ft. elevation, which is much cooler, but there is less air. I have never shot my top tank up there, but my gauge always stays in the middle, give or take a needle width.

I would think that Chrysler/Jeep would be responsible to find out why yours is running so hot...

I do go on runs, with some that have JKUs, and they have never mentioned a over heat issue. One of them is a 2014.
Now one of them has a 2009 and his transmission over heats, but that's a different issue, with a different trans and engine, verses ours.

Good luck to you in finding the solution to your issue.......
__________________
Wranglers are mean machines....

1974 CJ5, 2003 TJ, 2013 2 door Rubicon

Remember in life, the only dumb question, is the question not asked!
Old Dogger is online now   Quote Quick Reply
Old 07-12-2014, 11:03 PM   #28
Jeeper
 
2five22's Avatar
 
Join Date: Jul 2012
Posts: 1,754
Quote:
Originally Posted by Old Dogger View Post
Engines of today, are designed to run at certain temperatures, to meet EPA requirements, along with maximum MPG, and power output. So I will be leaving the factory original stat in mine.

I'm not sure where some of these high temperature readings are originating from, but mine on a hot day in Arizona, (113 degrees), after running on the highway for about a 1/2 and hour, with the A/C on, when checked with a In-Fra red heat gun, top tank temperature, it indicated 207 degrees. This is with the original factory stat!!!

The above is right on.

We are in an era where engines run hotter ~220˚F and above. With high pressure radiators, the coolant will not boil and the engine runs thermodynamically more efficient.

Ask an ASE certified Master Technician.

We aren't in 1976 any more and the common answers of that era don't apply to modern engine engineering.
2five22 is online now   Quote Quick Reply
Old 07-12-2014, 11:16 PM   #29
Jeeper
 
Join Date: Jun 2013
Posts: 114
The only way a different thermo is going to prevent over heating is if the old one is malfunctioning. Thermo stats do not reduce peak temps.... Bigger radiators do. Thermo stats control minimum operating temperatures.
Welding Rod is offline   Quote Quick Reply
Old 07-13-2014, 12:09 AM   #30
Supporting Member

WF Supporting Member
 
m998dna's Avatar
 
Join Date: Jan 2012
Posts: 2,492
Quote:
Originally Posted by Welding Rod View Post
The only way a different thermo is going to prevent over heating is if the old one is malfunctioning. Thermo stats do not reduce peak temps.... Bigger radiators do. Thermo stats control minimum operating temperatures.
Yep.... on my '91, when I started having cooling issues is when the radiator wasn't flowing like when new. The temps would rise on long grades, the effect from fewer tubes in the radiator open to circulate the coolant.

I did a lot of research at the time and learned a lot about radiators. I talked to a thermal engineer at Modine - the OEM for Chrysler.

The fact is efficient cooling isn't predicated on the number of rows in a radiator, more important, the actual tube size and surface area that the coolant passes through.

Many people think a three row radiator works better than a two row... the real measure, unless you are adding capacity, you could actually be reducing efficiency by installing a three row.

Modine

.

__________________
2013 Wrangler JKUR10A 3.6L DOHC - MDH 032515
:: 2002 Chevrolet G3500 LWB 8.1L - motovan
:: 1991 Cherokee Laredo 4.0L HO - resto in-process
:: 2010 Cherokee SRT8 6.1L Hemi - sold
:: 1965 Plymouth Sedan 562ci Hemi - sold
m998dna is online now   Quote Quick Reply
Reply

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the Jeep Wrangler Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
User Name:
If you do not want to register, fill this field only and the name will be used as user name for your post.
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.



Thread Tools

Posting Rules
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off




» Network Links
»Jeep Parts
» Featured Product

All times are GMT -5. The time now is 01:13 PM.



Jeep®, Wrangler, Liberty, Wagoneer, Cherokee, and Grand Cherokee are copyrighted and trademarked to Chrysler Motors LLC.
Wranglerforum.com is not in any way associated with the Chrysler Motors LLC