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Custom Dodge Ram Performance Mods - Engine - 5.7 HEMI V8 Discuss modifying your Dodge Ram with Performance Parts and Accessories!
Factory Spec: 5.7-liter HEMI® V8 engine - 390 horsepower, 407 lb-ft of torque.


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  #31  
Old 09-14-2013, 08:17 PM
johnny248 johnny248 is offline
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I've never been a fan of lowering t-stats on an stock engine unless it really needs it for some reason. Although engineers tend to do things that aren't always necessary, something like cooling and operating temp must be set up that way for a reason.

That being said, would there be any issue with a 190deg t-stat? somewhere in between the 180-203 options. Again, I don't know if there would be any reason on an '11 style truck. A lot of guys SWEAR buy their 180 stats for better performance and better fuel economy...
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  #32  
Old 01-28-2014, 03:58 PM
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Quote:
Originally Posted by johnny248 View Post
-Expensivetoys

I've never been a fan of lowering t-stats on an stock engine unless it really needs it for some reason. Although engineers tend to do things that aren't always necessary, something like cooling and operating temp must be set up that way for a reason.

That being said, would there be any issue with a 190deg t-stat? somewhere in between the 180-203 options. Again, I don't know if there would be any reason on an '11 style truck. A lot of guys SWEAR buy their 180 stats for better performance and better fuel economy...
I too would like to know if there is a 190 or 192 degree thermostat that will fit in a 2013-2014 5.7 hemi that will still make the computer system act correctly as the engineers designed it to.
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  #33  
Old 01-28-2014, 05:36 PM
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Quote:
Originally Posted by ncgatorram View Post
I have a BD tuner and monitor temps with it ... I don't plan to change any parameters after install. I am running it with MDS enabled.
Any update on your mileage situation?
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  #34  
Old 01-29-2014, 07:27 AM
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I've done this mod on several vehicles...don't think it made a difference.
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  #35  
Old 02-06-2014, 11:10 PM
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I was thinking about getting a 180 tstat for my truck but I was wondering how many mods would you need for it to help? I have a CAI, Tunner, 85 mm TB, flowmaster exhaust.
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  #36  
Old 02-07-2014, 02:14 PM
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Originally Posted by Lincoln5.7 View Post
I was thinking about getting a 180 tstat for my truck but I was wondering how many mods would you need for it to help? I have a CAI, Tunner, 85 mm TB, flowmaster exhaust.
There are many, many hours of reading available on the 180 degree T-Stat pro and con discussions. Dive in and have a look.
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  #37  
Old 02-07-2014, 02:34 PM
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ONLY reason a 180* stat is being used is to reduce block temperate, thus helping to reduce knock after installing high flow air filter, exhaust, tuner, etc.
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  #38  
Old 02-07-2014, 04:08 PM
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Cooler engine cooler cylinder temp less chance of detonation also the computer in theory ( not sure every computer controlled car) reading the cooler cyl temps will not pull out as much timing ='s more power thru the entire power curve. At the same time cooler engine temp will cause a richer fuel mixture and the computer on some again I'm not Sure Every... Will richen the fuel mixture even more trying to get it to operating temp. Which is perfect for bolt on modded trucks adding cold air, exhaust, tuners, throttle body, headers. If your only mod is a cold air your not gonna see much... If you have all the above it'll make quite a difference and also make it run safer with less chance of detonation because it's running fatter. Back in the old mustang days my blown 93 Cobra had a 160 but that old computer was easy to trick that was before tuners came along. Thermostats are super cheap and easy throw one in and butt dyno!! The cool thing now is having a Trinity T1000 and being able to monitor knock and timing and seeing gains or losses.... I highly recommend the T1000 the drivability of my truck alone was worth the price.
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  #39  
Old 08-08-2014, 10:19 PM
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I have measured mileage with this for almost a year now. I do mostly around town driving with a good bit of stop and go. Also have a heavy foot . Avg MPG is 14.0 ... I was averaging about 14.5 prior but I was doing more hwy driving a year ago and I have bigger tires.

Last edited by ncgatorram; 08-08-2014 at 10:58 PM.
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  #40  
Old 08-09-2014, 05:56 PM
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I was on the fence about this mod but I figured I would try it and see and if I dident like it I would just put the stock tstat back in. It dropped right in and I like the way the truck runs. Tested it with some hard driving and max coolant temp hit 196 and oil got too 206 degrees. Normal operating temp for the coolant is 185 and the temp depends on how long I run the truck. Usually in the 190's. the biggest thing I noticed is the oil temp takes longer to get into the 190's.
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