truck running at 210
Record Breaker
Joined: Mar 2010
Posts: 1,169
Likes: 0
From: Texas
today my truck was running at 210, it was 108* outside though!
i think i might have a air bubble in my cooling system somewhere, but its about time to flush the system, i hear the heater core gurgling everytime i start my truck.
i think i might have a air bubble in my cooling system somewhere, but its about time to flush the system, i hear the heater core gurgling everytime i start my truck.
Champion
Joined: Aug 2010
Posts: 2,697
Likes: 3
From: Cape Carteret NC
180* stat allows the engine to circulate sooner, and stay ahead of the heat.. it dissipates it faster.. a cooler engine is more easily controlled w/o as much concern for pre-detonation.. which allows a person who can tune to advance spark, which allows the combustion to take place when the piston reaches TDC or, in a perfected engine just before it reaches TDC to give you the most powerful explosion possible (at the peak of compression).. a hotter engine is less predictable, as the heat has an opportunity to ignite the mix too.. and if it ignites before the piston rises to TDC you get a nice PING... err....
Cooler engines get more fuel delivered.. they run richer.. there goes your gas mileage.. a hotter engine runs leaner but burns more efficiently- but the 'puter is retarding too- better fuel mileage, worse power produced on an engine running 195*+ stat..
A tune on an engine basically alters the tables, for operation whilst in open loop (before operating temperature is achieved, or whilst your running that bad bear WFO)... it allows for advancing spark, and better fuel management whilst below OEM expected operating temperature (195*)...
A cooler engine is harder on parts and pieces (180*~190*).. the parts will wear much faster.. The parts are engineered for a range higher (195*~210*).. the ninja HeyYou can recall the coating thingies stuff on the hard parts that require the heat and protect parts- I can't..
warmer for economy and durability... cooler for performance..> this is the general rule..
this is just how I understand it, it doesn't mean it's right...
Cooler engines get more fuel delivered.. they run richer.. there goes your gas mileage.. a hotter engine runs leaner but burns more efficiently- but the 'puter is retarding too- better fuel mileage, worse power produced on an engine running 195*+ stat..
A tune on an engine basically alters the tables, for operation whilst in open loop (before operating temperature is achieved, or whilst your running that bad bear WFO)... it allows for advancing spark, and better fuel management whilst below OEM expected operating temperature (195*)...
A cooler engine is harder on parts and pieces (180*~190*).. the parts will wear much faster.. The parts are engineered for a range higher (195*~210*).. the ninja HeyYou can recall the coating thingies stuff on the hard parts that require the heat and protect parts- I can't..
warmer for economy and durability... cooler for performance..> this is the general rule..
this is just how I understand it, it doesn't mean it's right...
Administrator
Joined: Apr 2010
Posts: 87,399
Likes: 4,214
From: Clayton MI
Well, after poking about a bit, what I have found:
Running a cooler stat, without reprogramming does nothing for you, and may actually decrease performance. It will certainly have a bad effect on fuel economy, (which is laughable on these trucks anyway....), and emissions.
Thinking the engine will "take longer to warm up" with a cooler stat doesn't quite follow. The engine will still warm up at the same rate, so, it will get to the Open temp a tad sooner. And average coolant temp for the new situation will be achieved a bit sooner as well, as opposed to the 195 stat.
Our engines don't run a knock sensor. Timing is set by tables in the PCM. There is no 'adaptive' adjustments there...... unlike the GM systems....... which will run just as much timing as they possibly can, until they detect knock...... at which point, it will back it off some.....
Unless you are doing some serious engine mods, or, running some variety of boost, there isn't really a point to a cooler stat.
Running a cooler stat, without reprogramming does nothing for you, and may actually decrease performance. It will certainly have a bad effect on fuel economy, (which is laughable on these trucks anyway....), and emissions.
Thinking the engine will "take longer to warm up" with a cooler stat doesn't quite follow. The engine will still warm up at the same rate, so, it will get to the Open temp a tad sooner. And average coolant temp for the new situation will be achieved a bit sooner as well, as opposed to the 195 stat.
Our engines don't run a knock sensor. Timing is set by tables in the PCM. There is no 'adaptive' adjustments there...... unlike the GM systems....... which will run just as much timing as they possibly can, until they detect knock...... at which point, it will back it off some.....
Unless you are doing some serious engine mods, or, running some variety of boost, there isn't really a point to a cooler stat.
Legend
Joined: May 2005
Posts: 8,663
Likes: 8
From: Central Oklahoma
180* tstat without a tune will not do anything to your truck, good or bad.
210 is the "normal" temp for our trucks. I had a 1996 5.2 that ran 210. my 2001 ran 195 until I put in my 180* with the SCT tune. Now it stays at around 180 and on colder days, it does not seem to even get to 180. I get the "Engine too cold for too long" error code.
Unless you have a custom tune, don't get the 180*.
210 is the "normal" temp for our trucks. I had a 1996 5.2 that ran 210. my 2001 ran 195 until I put in my 180* with the SCT tune. Now it stays at around 180 and on colder days, it does not seem to even get to 180. I get the "Engine too cold for too long" error code.
Unless you have a custom tune, don't get the 180*.
I've said it before and I'll say it again: for those of you who think running a cooler thermostat cures conditions of running hot you're just fooling yourself and it's affecting the proper operation of the engine.
Champion
Joined: Mar 2008
Posts: 3,363
Likes: 1
From: ohio
sorry about the dyslexic i was looking at it far the point as the lower stat 160 and what i typed is wrong,,,, but also excess heat can harm engines and power
Last edited by dodgeram07; Jun 2, 2011 at 02:21 PM.
Captain
Joined: Oct 2006
Posts: 565
Likes: 0
From: De Soto KS
Well, after poking about a bit, what I have found:
Running a cooler stat, without reprogramming does nothing for you, and may actually decrease performance. It will certainly have a bad effect on fuel economy, (which is laughable on these trucks anyway....), and emissions.
Thinking the engine will "take longer to warm up" with a cooler stat doesn't quite follow. The engine will still warm up at the same rate, so, it will get to the Open temp a tad sooner. And average coolant temp for the new situation will be achieved a bit sooner as well, as opposed to the 195 stat.
Our engines don't run a knock sensor. Timing is set by tables in the PCM. There is no 'adaptive' adjustments there...... unlike the GM systems....... which will run just as much timing as they possibly can, until they detect knock...... at which point, it will back it off some.....
Unless you are doing some serious engine mods, or, running some variety of boost, there isn't really a point to a cooler stat.
Running a cooler stat, without reprogramming does nothing for you, and may actually decrease performance. It will certainly have a bad effect on fuel economy, (which is laughable on these trucks anyway....), and emissions.
Thinking the engine will "take longer to warm up" with a cooler stat doesn't quite follow. The engine will still warm up at the same rate, so, it will get to the Open temp a tad sooner. And average coolant temp for the new situation will be achieved a bit sooner as well, as opposed to the 195 stat.
Our engines don't run a knock sensor. Timing is set by tables in the PCM. There is no 'adaptive' adjustments there...... unlike the GM systems....... which will run just as much timing as they possibly can, until they detect knock...... at which point, it will back it off some.....
Unless you are doing some serious engine mods, or, running some variety of boost, there isn't really a point to a cooler stat.
This is funny as I recently did a bunch of performance upgrades, headers, high flow cat, new o2 sensors, glasspack, and Cold air intake. While I noticed it did perform better my mileage was still the same. Went to the parts store and picked up a 180* thermostat and my mileage jumped considerably. I was getting 15-16 now getting around 19. This is just my own personal findings with my rig. To each their own.
