[boygenius]

Originally Posted by zen

i don't know how the gauge works, but i am assuming it looks for a signal from nothing to high and the needle will move appropriately. so dropping to a 250 degree sender from a 300, should move my redline down to a cooler temp (hopefully around 220). anyone know how this works?

Most sensors, at least for motorcycles use a one wire sender. With the oil cool there is more resistance so the groung isn't as good and the needle won't move up. AAs the oil gets warmer the resistance of the sender drops allowing more voltage to pass to groung thus the needle swings up. If you could get the electrical resistance range for the 911 sender (for the year of your gauge) Maybe I could find a motorcycle sender that would work. Or maybe someone will know of a cheaper alternative...