Hey yall.. So i went over to the auto hobby shop here on base today, changed out the front diff fluid. That was a pain in the ***, the top 4 bolts are a bit*h to get to, and filling it is not all that easy. Then i changed out my thermostat and but in the JET 180* T-stat. All i can say is wow, my temp is ridiculously cooler now. Its about a 15 mile, 20 minute trip from my place to the shop, i took a pic of them temp gauge when i got there (before the install) and one when i got home (after the install)... its a whole lot cooler. It almost seems like it stays too cool... what do yall think?

[IMG]local://upfiles/29323/F04A0E3F3A764FDCB42DC47490E70832.jpg[/IMG]

[IMG]local://upfiles/29323/3F0952A4F60244F7839B5A3871297FC1.jpg[/IMG]

 

That's where mine settles -- maybe a bit higher, but not much. I have my e-fan controller set to come on at the old "normal" position. My truck has not thrown a code, so I presume it's happy.

 

You'll get a bunch of answers on this one I bet. Anywhere from 160 thru the stock 205. Performance shop guru's told me that ideal is between 180 and 190, good for all year use in most locals. Only deviation is they said for northernmost climates (like Minn, Canada, etc.) it would not be a bad idea to put the stock one back in for winter use.
The 180 T-Stat richens the mixture justa tad, which makes for a nice balance when you have a lot of "lean" mods like a tuner (advances the timing which leans the mix a little) CAI and LT Headers which will also tend to lean you out. Since I have all three, I really needed the T-Stat to keep me in the proper air/fuel ratio. A lot cheaper than a piggyback A/F controller...

 

Well i dont have the headers, but i do have a CAI and Superchips (on performance setting). So should i be good with this where it is? and i did keep the stock one, so i guess thats good, ha.

 

yeah thats where the temp on my truck is at all the time....i got my e-fan controller set of come on at the coolest setting when i'm in town, and then if i'm goin on the highway i'll turn it up not quite halfway or so

 

The power wire will help to richen you up also, if you dont already have one

 

i just went to autozones website, advanceauto, and jets website cant find a non OEM temp T stat 06 4.7.. should this be right?
also what was the install like?

thanks

 

well i dunno bout the 4.7... but the install was a sinch, the bottom bolt took a minute or two to get to, but other than that... 20 minutes or soo total.

 

Yea, the power wire and a lower temp t-stat basically both do the same thing, your PCM gets fooled into thinking your truck is always still warming up, so it richens the A/F ratio. In theory, you get a couple more ponies (and lose a smidge of MPG's) due to the increase of fuel in the mixture...

 

gotta get me one of these. mine runs slightly higher than your stock T Stat. and thats with some royal purple additive which actually does work. mine use to be right at the half way mark....now with the RP its a little below half...and now i need a 180 T Stat