whats a lower temp switch?
i thought u could only use water at the track.... i guess its only some tracks
its located on the radiator on the left side. it monitors the temp of the radiator fluid and turns the fan on when the temp reaches i think something like 225 degrees or whatever the stock temp gauge is. dont remember exactly. the lower temp switch turns the fan on at something like 15 degrees. so it just turns on the fan sooner so it helps by starting to cool sooner.... i got it from one of the sponser websites but i remember a thread that said something about a certain model of honda civic or something that had the identical fitting switch that will do the same thing for less. i think i paid like $40 maybe.
the honda temp sensor is not adjustable. The benefit is that it is the same size (mm) as the oe sensor so it's an easy replacement to install. The honda sensor kicks the fans on sooner at a lower temp than the oe one and keeps the fans going until the coolant temp has dropped more than the oe sensor. Dual fans is always a good idea on a gen1.
As far as engine ice... for me, it may no improvement over just running water and water wetter. I haven't tried the mocol one yet but it sounds promising.