neo8222

ok so I've read that the stock thermostat is a 195 degree unit, and I've also noticed that my car runs stronger when it's cooler. so my questions are:

1 will it cause damage to install a 160 unit
2 will that affect AFR
3 will it consequently affect MPGs
4 or would it just lower operating temps

I've also read that at lower operating temps cause the car to run leaner which seems to be helpful to my car (no pings, just better power)

also if i do install a lower temp thermostat what style rad fan thermostat do i need a push in or screw in and what temp should i set it at.

neo8222

bumpity

Derf00

180 is about as cold as you want to run. Beyond that (160) you affect your efficiency as you will always be running rich. You will also tend to foul your plugs and lose lose power from excess fuel.

neo8222

i thought the engine went to closed loop at 150

neo8222

ok so i did some more reading and found that the 160 is to low so the 180 is the one to go with. now would a push in thermostat for the rad fan work cause that ones cheaper lol.

gusguts44

check out this link dude, hope it answers some of your questions
http://www.miracerros.com/mustang/thermo.htm

neo8222

i dont need to know how to install the engines thermostat, known how to do that. im talking about the thermostat on the radiator that tells the fan its time to cut on. theres 2 kinds a screw on and a push in. i need to know what kind would work best

RyansQuick6

Your engine is machined according to the temps it will be running, and yes, a few degrees can make a difference. It won't be imediate, more long term, but the engine won't last as long. You have to consider all the expansion that takes place when an engine warms up to know that cylinder walls aren't perfect circles when they're cold.

neo8222

so even putting in a 180 would cause premature failures?

neo8222

i wanted to do it today so anybody know if a 180 would cause problems? and what temp should i set the fans to come on at?