Got a 195* Stant Superstat sitting in the box. Gonna put that in when I put the truck back together.

 

I run a 180* its a stainless steel one cost me $25 new 5 years ago. Might be time to replace it.

 

180*. I live in Phoenix so heating isn't an issue for me.

 

If a 180 is so much better then why did Dodge not put in a 180 factory? Emissions? The hotter the engine, the less emissions it will emit? Also what is the factory thermostat rated to?

 

Factory is 195.

 

180 is notnecessarily "better" as the PCM wants to see around 195. If it doesn't get to 195, it will run rich I believe (not absolutely sure). Of course a 180 with a tune set up for 180 eliminates this problem.

I am runing 1 180 Stant with SCT Tune.

 

190 degree just a little cooler than stock but it helps since it stays in the 90's here. I got it from the local parts house.

 

160 here,is it bad to have it that low?

 

Factory temp 195 Stant super stat.

 

It would be nice to have a Chrysler engineer chime in to the discussion here, explaining why we should change from the design they carefully made when these vehicles were designed. Until that happens I've chosen the default of assuming there are good reasons they made the decisions they did, stock 195. Even the cat efficiency issue can have more than altruistic goals. I think it's possible that inefficient cat combustion might create deposits that kill it slightly sooner than it would otherwise. You would never know without a study, and those kind of studies are often cloaked in corporate secrecy.