Performance tune and water temp.
Former Sponsor
Joined: Mar 1998
Posts: 13,385
Likes: 4
From: Virginia
Hi Jason,
Remember that your truck does not even have an engine coolant temperature sensor - it's all inferred models based on the CHT & a couple other things, so a 2-4 degree difference is not statistically significant, that didn't cost you any power. And E-fans are not going to cause the engine to run hotter.
With that tiny a difference, more likely it was simply differences in outside ambient, humidity & baro more than anything else. It's not like cars used to be, where once they started approaching 200 degrees they were overheating, that is a thing of the past. The few who actually install mechanical coolant temperature gauges with liquid immersion probes will also find a 20 degree differential just based on where you put the probe - up at the thermostat will usually be the hottest, and the bottom of the block will generally be the coldest, with a 20 degree spread on average between the 2.
This is all just general FYI stuff of course - you do whatever makes you happy Jason, & good luck!
Remember that your truck does not even have an engine coolant temperature sensor - it's all inferred models based on the CHT & a couple other things, so a 2-4 degree difference is not statistically significant, that didn't cost you any power. And E-fans are not going to cause the engine to run hotter.
With that tiny a difference, more likely it was simply differences in outside ambient, humidity & baro more than anything else. It's not like cars used to be, where once they started approaching 200 degrees they were overheating, that is a thing of the past. The few who actually install mechanical coolant temperature gauges with liquid immersion probes will also find a 20 degree differential just based on where you put the probe - up at the thermostat will usually be the hottest, and the bottom of the block will generally be the coldest, with a 20 degree spread on average between the 2.
This is all just general FYI stuff of course - you do whatever makes you happy Jason, & good luck!
Senior Member
Joined: Apr 2006
Posts: 174
Likes: 0
From: Picayune, MS
Originally Posted by Superchips_Distributor
Hi Jason,
Remember that your truck does not even have an engine coolant temperature sensor - it's all inferred models based on the CHT & a couple other things, so a 2-4 degree difference is not statistically significant, that didn't cost you any power. And E-fans are not going to cause the engine to run hotter.
With that tiny a difference, more likely it was simply differences in outside ambient, humidity & baro more than anything else. It's not like cars used to be, where once they started approaching 200 degrees they were overheating, that is a thing of the past. The few who actually install mechanical coolant temperature gauges with liquid immersion probes will also find a 20 degree differential just based on where you put the probe - up at the thermostat will usually be the hottest, and the bottom of the block will generally be the coldest, with a 20 degree spread on average between the 2.
This is all just general FYI stuff of course - you do whatever makes you happy Jason, & good luck!
Remember that your truck does not even have an engine coolant temperature sensor - it's all inferred models based on the CHT & a couple other things, so a 2-4 degree difference is not statistically significant, that didn't cost you any power. And E-fans are not going to cause the engine to run hotter.
With that tiny a difference, more likely it was simply differences in outside ambient, humidity & baro more than anything else. It's not like cars used to be, where once they started approaching 200 degrees they were overheating, that is a thing of the past. The few who actually install mechanical coolant temperature gauges with liquid immersion probes will also find a 20 degree differential just based on where you put the probe - up at the thermostat will usually be the hottest, and the bottom of the block will generally be the coldest, with a 20 degree spread on average between the 2.
This is all just general FYI stuff of course - you do whatever makes you happy Jason, & good luck!
You are no doubt correct about all those variables, though.
Thanks for all the info.
It's always good to learn.
Jason