you are going to want to put the sensor in a hose that is coming OUT of the motor. this way it will be "worst case". this is the way it's done in almost all automotive applications. take a look at your car/truck, there should be a sensor close to the thermostat... usually the coolant coming out of the motor is the hose coming off of the thermostat housing.
2004 F7 Sno Pro EFI
BMP Pipe Mod -- BMP Head -- D&D Y Pipe -- D&D Silencer -- Speedwerx Clutch Kit -- 4 Wheel Kit -- 2006 ECU Reflash -- Boyesen Reeds -- SLP Powder Pros -- 136 Studs