Found some datasheets on NTC coolant sensors from bosch, seems to have a trend of these values
80c=.323k
90c=.243k
100c=.187k
What mpg are you seeing from your rig and how is it set up? I'm in middle georgia so not too far from you.
Yeah I get it that the temp sensor is measuring heat shed off into the coolant system but the ecu temp/fueling map is what i desire to manipulate. I'm not convinced btu lost into the coolant system vs work done efficiently is greater than getting to a more favorable temp/fueling table value from the ecm.
I do find it interesting you had no mpg difference b/t the 170f and 195f thermostats though. Reading thermostat threads there were lots of mpg increases mentioned with hotter and proper working thermostats whether custom hacks of factory housings or the $$$ cnc unit.
What am i getting at here? I'd like a few more mpg... replacing the failed open tstat moved me from 17 to ~20 mpg but i have yet to break a best of 22mpg and i think that one time was just a filling fluke from uneven ground
2006 120k miles, f37 ofc.... Stock sized street tires 40psi, alignment seems good... hands off no pull and no uneven wear on tires, no lift, verified no brake drag with ir gun, no symptoms of boost loss oily hoses etc, 5w40 t6, boost peak 22psi on torque pro, mbrp stainless exhaust... the cobbled and clamped together straight pipe it came with was no better either. Full throttle accel gives a light haze and no coal rolling... no lifter noise very quiet valve train. Pulled the heater wire to the filter head and filled that with rtv... no more air in fuel.
Running a stock tune with egr/fcv delete at the moment, all other free tunes give some converter shudder and worse mpg.
The viscous heater gave a little mpg boost in the winter but really it was worth keeping for fast cabin heat.
Just looking to break the 25mpg mark without spending big bux with GDE eco tune... takes a whole lotta miles to make up the cost difference.
Anything i am missing here as i dont drive it hard and try to keep rpm under 2.2k seeking mpg?