Different Drummer

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Oct 20, 2020
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North East
Ram Year
2017
Engine
Pentastar V6
Anyone know what the stock t-stat is rated?
I have also been trying to get this information. So far I have not been able to locate a definitive answer. Just speculation and numbers that are from Jeep forums for the Pentastar use in jeeps.. I do know that if you go to NAPA and ask for a replacement Housing / thermostat that it is listed as 195*F.
That is as close as I have been able to get to a figure. After driving all day in 90*F Temps. with the center section of AGS removed I predominately saw 199*F coolant Temp. So 195*F seems like a reasonable number. I know that under those same conditions my coolant and oil temps would have been in the 220-230 range and maybe higher.
 

OLEJOE

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Sep 23, 2019
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Location
N. La
Ram Year
2022
Engine
6.4 Hemi
The shutters on my 22’ remain open after the test cycle. I believe, don’t really know, that they stay open until truck reaches 35-40 mph. They may close if the ambient temp gets below a certain point but it’s not been that cold here yet.
 

theclassic

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Oct 29, 2021
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Location
Grass valley
Ram Year
2021
Engine
5.7
This is my truck with shutters in. Normal driving.
 

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Southlake

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Dec 17, 2021
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Location
USA
Ram Year
2022
Engine
5.7 etorque
Thought I would throw this out there. Live in the south and the heat and humidity are relentless all summer. In town I expect the engine temps to fluctuate, but it never sat well with me on the interstate. I get it, aerodynamics etc. Still, I never thought it was doing the drivetrain any good at a steady 80mph, heating up and cooling down over and over.

I've owned the truck for a few years now and it's not had any problems, but I decided to finish paying it off and run her till she drops. Accordingly, making some changes for longevity seemed worth it.

Last month, middle of the worst heat, it's clear that she feels more peppy BEFORE she's run for a long time and the engine and trans are heat soaked. I looked at the mods on YouTube for the Active Grill Shutter delete and really didn't feel like drilling and buying some kit etc. One I found, the guy just took out 6 fins and left the Active Grill Shutter as is. He left the top 2, middle 2 and bottom 2 fins and there was just 6 fins left, top row, middle row and bottom row. So, the AGS system kept working as intended, but only operated 3 rows. Maybe it took me 30 minutes. Boosted Motorsports also has a grill removal video on YouTube, it was easy! The motor still runs those 3 rows of fins and no codes get thrown but now, like, 90% of the radiator is open all the time.

Here's what I DID NOT expect! I did not do it for any other reason than keeping the temperatures more evened out so it would hopefully lower stress and last longer. Now, even on those miserable hot humid days, the temps all stay lower. Highway at 70 or 80 mph and she runs at 199 - STEADY. It feels like it's got more pep ALL the time. She used to bounce between 7th and 8th gear on the highway, all the time. Now she just hops into 8th and stays. My average MPG was pretty much always in the 18 MPG area, now it's low 21 MPG.

I think some of these performance things people get, like the cold air intake, they buy it believing it'll bring more power. The engine sound changes a bit, so they think it has more power, when it doesn't. I didn't do this expecting any performance or fuel economy added, but I think the lower temps might help performance more than expected. If you're thinking about the mod, just do the FREE one and delete 6 fins. It's been a month now and it's not just a fluke... it's been a consistent improvement.
How do you remove the fins. Can you point to a website or video. Thanks. I also live in florida.
 

theclassic

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Grass valley
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2021
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5.7
 

ChiefPepe

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Dec 27, 2021
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Location
Hanahan
Ram Year
2019
Engine
3.6
my 2019 4th gen 3.6 lost 1/2 gallon coolant since new. dealer says it evaps thru rad cap.. you cansmell slightly when hood is up. 18,000 miles , thinking of removing shutters and getting a new cap. dealer didnt offer to replace it cause its "normal"
 
Joined
Jun 30, 2016
Posts
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Ram Year
2016
Engine
5.7
Does this mod affect fuel mileage? Thanks
Yes it does…..005 miles per gallon. Not a typo.
I posted the engineer answer to that question on a recent post. Yep, that is right. .005 miles per gallon.
I read what the engineer said, and my AGS came off that day.
 

Yardbird

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Aug 6, 2022
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25
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Location
Western NC
Ram Year
2018
Engine
3.6
Just bought my truck a few weeks ago. Didn't know it had the active shutters until I read here.

I checked my coolant temp Saturday at 45 MPH...213 deg.

Sunday, removed all but the top and bottom shutter. Took all of 20 minutes total.

Feel much better now. Haven't driven it to see what the new temp will be, but if 213 with what little bit I drove it, I hate to think what it would have gotten to pulling a hill.

This can't be good for the oil or the engine.
 
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