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  #25  
Old 07-01-2015, 11:20 PM
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Re: which tuner for 2014 srt?

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Originally Posted by Daniel454 View Post
You do not HAVE to, but the tune will change when the fans come on. Without the tune the thermostat helps while moving but once you stop, the temperature will creep up to stock running temperatures before the fans come on.



In other words, if runnign a 180 Tstat, while moving you will maintain 180 degrees. When sitting still (idling) you will slowly creep up to 205 before the fans kick in.



With the tune you can set them to come on whenever. I usually go with about 185 or so.



Also, depending on how you drive (and the outside temperature) you MAY get a low temp thermostat check engine light.



For me, it never happens as I am never light on the throttle, but for the wife, if she gets in with the Jeep cold, hops on the highway (1 mile form our house) and sets the cruise, about 10 minutes in she gets a check engine light.



P0128 - If the engine doesn't hit 182 degrees within a certain time frame (12 minutes I THINK), you set the code.



Again, stop and go traffic it wont be an issue, especially if the fans don't come on until 205, but light on the throttle leaving then straight highway, cruise set, not stopping for 20 minutes, cold morning... Yep, gets her every time.



I picked up the Diablo tuner JUST for this very reason. Allowed me to set the fans down in the 185 range and a quick email of my tune to Johan (at Diablosport) and he can modify it to NOT set the low temp thermostat code.

Just a quick question. I just added a 180 T-stat to my 2014 SRT. I've changed the fan settings to 200 on most of the fan options. However, there's like 8 different fan options within the tuner. No AC, low mph, high mph, AC on, low mph, high mph and like two others. Did you change all of them to 185? I saw that some of the factory settings were as high as 217! That's very hot for the engine. I had my SRT tuned by Sean a Hemifever, but he hasn't really given me any guidance on this.


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  #26  
Old 07-01-2015, 11:35 PM
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Re: which tuner for 2014 srt?

I staggered mine, 185 LS / 193 MS / 200 HS ... (Or something close to that, can't remember exactly).

The Internet is full of conflicting info on how low is best to run an engine. Most agree 180 is fine for the most part but plenty say you occasionally do want to be above 200 to ensure all contaminants are burned off.

Figured if I was running 180 on the highway, 185 - 190 light traffic or cool days with the occasional 200 - 205 on hot days I could ensure max power most of the time with enough spikes around 200 to keep things flashed off.

Truthfully it may not be needed but made sense in my head and can say I have ran the 5.7 in my Magnum for 180k miles like this with no issue...
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  #27  
Old 07-05-2015, 04:55 PM
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Re: which tuner for 2014 srt?

So I cleared the P0128 code and just got it again today. It's a bit frustrating to know that this will continue happening if I'm not pushing the vehicle soon after a cold start. Anyone has some suggestions that don't include taking out the tstat. Maybe a different brand perhaps. I currently have a Mishimoto.

Thanks.
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  #28  
Old 07-05-2015, 05:02 PM
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which tuner for 2014 srt?

I have tried 4 different brands, Motorad, Jet, Stant and a Napa branded one (likely stant but not sure). Same problem.

Long ago someone had found a 190 degree one that fits but it's a different style and it didn't look like it would flow as well.

Napa 381-190 is the 190 degree that will work if you want to check it out for yourself but for me, getting the tuner was the best option.
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  #29  
Old 07-05-2015, 05:09 PM
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Re: which tuner for 2014 srt?

Crap. I really can't handle these check engine lights. Hopefully there is another solution or I might have to revert to stock.
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  #30  
Old 07-10-2015, 05:35 PM
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Re: which tuner for 2014 srt?

Quote:
Originally Posted by Daniel454 View Post
I staggered mine, 185 LS / 193 MS / 200 HS ... (Or something close to that, can't remember exactly).

The Internet is full of conflicting info on how low is best to run an engine. Most agree 180 is fine for the most part but plenty say you occasionally do want to be above 200 to ensure all contaminants are burned off.

Figured if I was running 180 on the highway, 185 - 190 light traffic or cool days with the occasional 200 - 205 on hot days I could ensure max power most of the time with enough spikes around 200 to keep things flashed off.

Truthfully it may not be needed but made sense in my head and can say I have ran the 5.7 in my Magnum for 180k miles like this with no issue...

Thanks Daniel, I set my fans to your settings and have been monitoring the temps, works great! I have some long tube headers being installed on Monday... Kinda worried about the temperature after that install.


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  #31  
Old 07-10-2015, 06:40 PM
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Re: which tuner for 2014 srt?

Didn't see any changes in temp operation when I put headers on my magnum, different engine bay so that doesn't mean it for certain correlates but I wouldn't expect major changes.
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  #32  
Old 06-30-2016, 09:36 PM
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Re: which tuner for 2014 srt?

Quote:
Originally Posted by Daniel454 View Post
I staggered mine, 185 LS / 193 MS / 200 HS ... (Or something close to that, can't remember exactly).

The Internet is full of conflicting info on how low is best to run an engine. Most agree 180 is fine for the most part but plenty say you occasionally do want to be above 200 to ensure all contaminants are burned off.

Figured if I was running 180 on the highway, 185 - 190 light traffic or cool days with the occasional 200 - 205 on hot days I could ensure max power most of the time with enough spikes around 200 to keep things flashed off.

Truthfully it may not be needed but made sense in my head and can say I have ran the 5.7 in my Magnum for 180k miles like this with no issue...

Did you do these settings with both AC On and AC Off, or with just AC Off?


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  #33  
Old 06-30-2016, 10:00 PM
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Re: which tuner for 2014 srt?

Quote:
Originally Posted by prodigy1979 View Post
Did you do these settings with both AC On and AC Off, or with just AC Off?


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I did it the same for both AC on and AC off.... Could probably get away with HS being 5 degrees less on AC on to help keep things cooler if you're in a very hot place but I couldn't really see much reason to differ for me.
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  #34  
Old 06-30-2016, 10:19 PM
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Re: which tuner for 2014 srt?

Awesome, thank you. I just had a supercharger installed last week and I'm working on the tuning still.


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