New T stat..which one, and what * for fans?

[hotmustang331]

I am thinking of getting a new T stat before my dyno tune, so i can have the tuner turn the fans on sooner. So my question is, 1. what does it have stock.
2. what * do fans turn on and off stock. 3. what T stat should I get (leaning towards 180...160 is prolly to cold, especially in the winter). 4. what temp should I have the tuner program the fans to turn off and on at? I know that it gives about 2 hp going with a 160 or 180, but my car seems to run quite abit better when the car is just warming up, once it gets to full temp it seems slower and less responsive. Could be my A/F and its trying to detinate or something. I hope the car holds out until my tune...it just didnt feel right today when driving it after it warmed up. Maybe I am just paranoid. Thanks for the input people.

 

[CanadaStang]

I am thinking of getting a new T stat before my dyno tune, so i can have the tuner turn the fans on sooner. So my question is, 1. what does it have stock.
2. what * do fans turn on and off stock. 3. what T stat should I get (leaning towards 180...160 is prolly to cold, especially in the winter). 4. what temp should I have the tuner program the fans to turn off and on at? I know that it gives about 2 hp going with a 160 or 180, but my car seems to run quite abit better when the car is just warming up, once it gets to full temp it seems slower and less responsive. Could be my A/F and its trying to detinate or something. I hope the car holds out until my tune...it just didnt feel right today when driving it after it warmed up. Maybe I am just paranoid. Thanks for the input people.

The 160 is too cold for your car. If you must change out the thermostat go with the 180 and have your fan come on at 200 degrees. I believe the stock setting is 220. You can just go to your Ford dealer and order one for a Lighting, or better yet, send Randy Stinchcomb a PM and he'll fix you up.

 

[hotmustang331]

Hey, thanks. yea, I like the idea of it running at 180-200 instead of 220 LOL. Thats too freegin hot for an aluminum headed engine IMO, not much room for error/overheat before it blows a gasket or something. Yea, my dad was saying the same thing about the 160* being too cold. Yea, ill give randy a PM. BUT I forget who that guy was who sells Ford parts for 10% over cost. Need to find him lol.