@jfb05177 posted:my "reason" for 160. - the fan switch is to regulate the temparture of coolant leaving the radiator. I expected a 20f drop across radiator with 180 leaving thermostat.
the Sniper would use the temparture sender at the thermostat. that location is not regulated by fan operations.
I can't get by with Your philosiphy and Commander Montgomery Scot's - "The more they overthink the plumbing, the easier it is to stop up the drain." In my former Life, I made my living by trouble shooting overly complicated controled systems, just trying to relive those glory days
I am NOW begining to realize normal should be around 200 (at the block sender). corrected those other problems should let me get there
But with a 160° fan switch, your fans would always be “on”. Even if your fans could lower the temp to 160°, you wouldn’t want them to. Ideally, you want your coolant temp to rise to normal operating temperature and stay there. If you replaced your 160° fan switch with a 185° switch, I believe you’d see no change in your operating temperature but your fans would cycle on and off. Most importantly, they’d switch off at speed, when they aren’t needed. The nice thing about having your Sniper ECU control your fans is, you can experiment easily with different trigger points.