Low temperature thermostat

[piper6909]

Originally Posted by JFP in PA

...The OEM stat will go steady state on a 68 F outside temp day at around 210-220 F. The LTT under the same conditions will go stead state around 170-175 F...

IRRC, the LTT is 160 and the OET is 180. That's a 20 degree difference.

Why/how would the actual temps be 30-35 degrees different between the two?

Just trying to understand better. Thanks.

[JFP in PA]

Originally Posted by piper6909

IRRC, the LTT is 160 and the OET is 180. That's a 20 degree difference.

Why/how would the actual temps be 30-35 degrees different between the two?

Just trying to understand better. Thanks.

You are looking at the OPENING temperatures, not the steady state temp, which is where the car actually settles while running. The OEM thermostat goes steady state at 210-220 F, the lower temp unit at 170-175 F.

[Quadcammer]

Originally Posted by piper6909

IRRC, the LTT is 160 and the OET is 180. That's a 20 degree difference.

Why/how would the actual temps be 30-35 degrees different between the two?

Just trying to understand better. Thanks.

LN or Jake Raby have tested teh stock thermostat to not fully open until about 210 degrees, whereas their LT unit is fully open by about 185, so roughly 25 degrees.