TG02Z71

iTrader: (2)

I live in Wisconsin so the temp here goes from mid 90's in the summer to 30 below zero in the dead of winter.
My question is will the 160 degree t-stat be an issue in the colder months?
I know the turbo will get the engine warmer faster but what will the coolant temp really run at with a 160 in there?
And lastly is the stocker on an "02" a 190 degree?
Thanks.

KLUG'S SS

iTrader: (6)

Well I basically live next door to you here in Michigan and when I had a 160 tstat in my gas mileage went to ****, especially in the winter. With the 160 mine ran more like 180 to 185. Stocker is a 195.

TG02Z71

iTrader: (2)

So not really worth it then?
I like my mileage where its at while cruising. 17-18mpg max!
I know it will fall off the map going up in boost with bigger injectors but thought the 160 degree t-stat would help me keep temps down a little.

01Blackerado

iTrader: (4)

I dont know what a tstat has to do with gas mileage but i do have a 160 in cold *** weather here in VA my mileage is about the same as yours...until I get on it

Bish

If it's too cold, the computer will stay in "open loop" (like when you first start before reaching operating temp) and is not adjusting the air/fuel mixture properly because it used the map to determine fuel and not the o2 sensors based upon running lean/rich.

I live in Chicagoland and I went with a 180 degree t-stat. I get great heat in the winter and slightly cooler temps in summer with no change in mileage.

OBXMarine

iTrader: (2)

I've also heard that the 160* stat increases mileage due to the "open Loop" condition. I think my TT300 and 6.0 is the source of my city mpg woes. I get 18 on the Highway.

To directly answer the question, I have no complaints about my 160* stat in cold weather (Pennsylvania winters). I would actually recommend it since the truck's cabin warms up so much faster.

01Blackerado

iTrader: (4)

You have a point but you can tune that out as nelson has done with mine

Bish

Right you are. Another benefit of custom tuning!

MikeGyver

iTrader: (5)

Mine works way good in Chicagoland. I installed it with my 6 psi Whipple, and didn't notice much difference in before and after the supercharger gas milage, maybe a little improved. (didn't notice much power difference either, until Nelson sorted it out) And sooner heat, like Bish said. Temp. runs at the mark halfway between 160 and 210 now (stock gauge), instead of a couple of marks below 210 before, going up to where it was before after a long full throttle run.

Texas Terminator

put a 180 in it then. closed loop comes on way before the thermostat even thinks to open too and it would have to be damn cold to keep it in open loop, even up there. cooler operating temperatures will certainly increase mileage not to mention increase engine life. the only reason 195's are used today is for emissions, old school motors came with 160's for the longest time until the EPA caught up.