engine temp??? is 200 good or is 160 better
- Thread starter 63bird390
- Start date
bubba-dough
Active Member
The local SCT tuner gave us about a 15 minute explanation on why not to run 160*. I don't remember all the specifics but he said it is too cold. The engine has to be at a good operating temp. Colder operating temps also let condensation build up.
Anything much below 180-185 will start to really confuse the computer. The computer will think the car is still warming up and run the engine really rich, and I think may mess with some other parameters as well. Surf this website to learn more specifics:
Ford Fuel Injection
Ford Fuel Injection
There's a difference between what temp to run at the track vs what temp is most efficient and best for the longevity of the engine (as a daily driver).
Carb vs untuned EFI also makes a difference.
For a street car, I'd shoot for 190-210*F, which is pretty optimal with regard to cylinder wear.
Carb vs untuned EFI also makes a difference.
For a street car, I'd shoot for 190-210*F, which is pretty optimal with regard to cylinder wear.
bluevenom867
I will have images of molesting stuffed animals in
Well,this is coming from experiance with my Lightning,but with a 160* stat (engine runs about 170-174 with e-fans and was the same with the stock fan) after cool down and getting it up to about 140* befor making a pass,I would always pull about .3-.5 mph more than once at 170+ after 5 laps with about 10 mins cool down,Im down almost a whole mph.
Now wether this is from intercooler heat soak or reduced timing/cylinder cooling (the EEC V adds timing when its cool,and will retard slightly when its warm,total timing is 16* either way though) I can't say for sure,but cooler runing definitly will improve your et/mph. My IAC2's witch is after the blower and intercooler is always about 10* above ambient witch is really good for a stock heat exchanger and open filter w/o shrouding. Never measured them with the stock T-stat in there though. I also have no fender shrouds.
I noticed no differance on the street however,between it and my stock stat. HISSIN50 is right on,cooler operating temps will slightly reduce fuel efficency,and could possably cause more ring wear due to decreased bore expansion = more friction on the rings.
Now wether this is from intercooler heat soak or reduced timing/cylinder cooling (the EEC V adds timing when its cool,and will retard slightly when its warm,total timing is 16* either way though) I can't say for sure,but cooler runing definitly will improve your et/mph. My IAC2's witch is after the blower and intercooler is always about 10* above ambient witch is really good for a stock heat exchanger and open filter w/o shrouding. Never measured them with the stock T-stat in there though. I also have no fender shrouds.
I noticed no differance on the street however,between it and my stock stat. HISSIN50 is right on,cooler operating temps will slightly reduce fuel efficency,and could possably cause more ring wear due to decreased bore expansion = more friction on the rings.
